Spanky's Speedshop B-class RWD World Tour.

[Fit4aking]

World Tour.

As if I don’t have enough that I want to do in the game as it is that I decide to start up another project.  Everyone at Spanky’s Speedshop has their personal preference and it seems there is some tension brewing that needs to be worked through.  I sent out Spanky with some of the recent race winnings, then I sent Chet out with some cash, I had one car in mind so it wasn’t long before we had a real showdown shaping up in the parking lot.  Seems we all have differing taste, but one thing in common.  Rear wheel drive.

When Spanky pulled up in a Mercedes I knew he went over budget, his name’s on the door so what can I say.  He loves his luxury, and displacement.  If he hadn’t had a horrible Eldorado some years back I’m sure he’d be more into Cadillac’s but the CLK55 AMG is a good substitute.  Before I could have a good look at the car the entire complex could hear Chet coming down the road and when he turned the corner in a Saleen S281 it was obvious his connections at the Ford dealership were deeper than I thought.  When we pulled the cars into the showroom and lined them up we had a car from each major region.  I’d turned down some prize money for a Honda S2000 recently and it has been begging for attention. (The S2000 will be replaced by a G37 Coupe)

So what does a Mercedes Benz CLK55 AMG, a Saleen S281, and an Infiniti G37 have in common?  Not much, drop the hammer and the same set of wheels spin but that’s where the similarities end.  Track time will show where these gems shine but its more than just a QR session and a build up.  We need to take these cars to their home turf and really let them prove whose the king of the world.  One ribbon of Sebing, Silverstone, and Motegi will host the run off.  So how do the cars stack up stock?

Infiniti G37 Sport Coupe - C367
Speed – 6.6
Handling – 5.1
Acceleration – 4.9
Launch – 5.8
Braking – 4.9
330hp
270tq
3668lbs
54% Front
3.7l
Value: 32,000
225/45-19 Front
245/40-19 Rear


Mercedes Benz CLK55 AMG – C414
Speed – 7.2
Handling – 5.2
Acceleration – 5.5
Launch – 6.3
Braking – 5.0
366hp
376tq
3,635lbs
51% Front
5.4l
Value: 20,000
225/45-17 Front
245/40-17 Rear


Saleen S281 – C387
Speed – 6.0
Handling – 5.1
Acceleration – 5.3
Launch – 5.7
Braking – 4.8
365hp
400tp
3,064lbs
56% Front
4.6l
Value: 20,000
265/35-18 Front
295/35-18 Rear


Next chance I get I’m going to take the cars out and decide which ribbon of their home track will provide a fair representation of the cars strength.  I’ll then tune the cars to the top of B-class in preparation for a world tour.  

[Fit4aking]

This is a personal tuning exercise to apply what I'm still learning to these cars.  Increasing the size of my garage is always a plus and these three will add some diversity. 

Secondary to the performance of the car is the opportunity to paint three more cars.  I already have the S2000 covered from a storefront find but the other two will need to have an appropriate livery added to them.  Feel free to chime in, watch from the sidelines, or build your own versions of the world tour entrants.  More is always better.  No timeline, no rush, just something to keep me busy between challenges and friendly racing.

[Blooze]

Very good Fit.  This looks like a fun one.

You might want to watch out.  I know a cranky old fart who is kind of partial the Shelby himself...

$

[Fit4aking]

Chet was at it again.  He went and filed a formal complaint with the Forza Motorsport Association and they ruled that the S2000 was of the wrong body style for a formal series with the three original cars.  While he was pleading his case with the higher-ups I had a chance to thumb through the rule book and found my own loophole.  My replacement car had to be decided on the spot and time constraints meant that I had to pay full price.  Since the Infiniti G37 is technically powered by a Nissan drivetrain it fits the "Asian" requirement for entry in the World Tour.  That means the Honda is back on the shelf for the time being and will be replaced with the Infiniti.  I've updated the stats in the original post and have initial laps set with each of them in stock trim.  Interesting results.

[Fit4aking]

The stage has been set and the cars have all been approved.  The ordeal with the formal inquiry really split the shop and we all needed a break.  Not to over exaggerate but we all went off to opposite sides of the globe to cool off and use the motivation on the track instead of against each other.  One last stipulation was set to keep us all apart until the shootout, none of the cars can run on either of the other two tracks until the series is run.  No pre-race prep work, no secret laps, the cars aren't allowed to leave the country they are already in, their visas have been marked so that's that.  

While the parts are on order everyone has taken some time to run laps in stock trim not only to get a feel for the car but also to learn the tracks.  The stage is officially set.  Here's the track list:

Europe - Silverstone International.
Asia - Motegi East.
United States - Sebring Club.

Each car has all of the ribbons of their home track at their disposal but the haulers are pretty much locked in the paddocks.  Shakedown laps are as follows.

Mercedes Benz CLK55 AMG at Silverstone: 94.421

The Benz accelerates poorly due to wide factory gear ratio's.  The space between each gear is quite long and downshifting without proper deceleration will lead to engine issues.  Not quite race worthy.  On all of the sweepers the car suffers from an on-throttle understeer condition.  Not to the point that it is unmanageable but it was shocking the first time I went to accelerate out of a corner.  Braking leaves a LOT to be desired and it took nearly 3 laps to find the correct point to apply the clampers out of the high speed straights.  The car is surprisingly transitionally stable on switchbacks even over curbs and when the sweepers are initiated correctly and the throttle points are planned the car can be made to handle quite well.  All in all it is a decent car to start out with and should improve with the right changes to the build.

Infiniti G37 Coupe at Motegi East: 97.910 (.600 faster than the lighter, more sporty Honda.)

This coupe slaughtered the S2000 around all points of the track and it was a breath of fresh air to drive.  It is heavy under braking but not as bad as the Benz.  It also doesn't multi-task well because of its weight.  Stopping is one thing but stopping and turning is not a good idea.  Unlike the Mercedes it has slight oversteer on sweepers but is very manageable when the throtte is feathered.  Having a car that responsive to the throttle makes it easier for me to drive because there are several ways to get the car to rotate in and out of the turns.  The engine has a very smooth power band but I did notice that you can't take it over the published redline as the rev limiter lives about 200 RPM's above that point on the tach.  One last note that Motegi shed some light on was the transitional oversteer of the car and its tendency to let the rear around when it shouldn't.  Not a major malfunction but quite the opposite of the CLK.

Saleen S281 at Sebring Club: 75.185

The obvious powerhouse of the bunch but it does handle almost as well as it accelerates.  I was shocked at the turn in and never once felt that I needed to slow down too much for a corner entry.  The gear ratio's are nearly as bad as the Benz and the weight rears its head again in the braking department.  While it handles well it doesn't stop all that good so care is needed to keep a clean lap.  The heft also makes correcting line mistakes a tad challenging and as much of an all around car as this thing is it definitely needs to go on a diet.  The car has long gears and can induce some downshifting decel oversteer if not timed properly but it will reward a smooth driver that decelerates and then downshifts.  I used that technique to keep the car as stable as possible around the track.  

Seems the gauntlet has been laid down and I'll start building out the cars here very soon.  Just need to get out my note books so I can use the damer, ARB, and spring notes to maintain the balance these three already exhibit.

[Fit4aking]

The next step in the build up of the cars was to add the basic essentials that I know each car is going to need down the road.  Each car was outfitted with race dampers, front and rear race sway bars, a race transmission and a race differential.  Maximum adjustability is my goal.  The only upgrade I added that I normally don't arbitrarily add to a car is race brakes.  Each of the three cars suffered from poor braking so this seemed like a logical step.  If it improves the cars than I'll know it was the brakes keeping the car back and not just poor available braking grip from the tires.  I've shied away from all other upgrades for now to see how much these few upgrades improve the cars.  Back to the track.

Mercedes Benz CLK55 AMG Silverstone International. 1:32.379

Infiniti G37 Coupe Motegi East.1:37.699

Saleen S281 Sebring Club. 1:14.929

The Mercedes is the clear winner of that round as it gained two full seconds on its former self.  The gearing of that car made all of the difference.  Even the default settings are better than the factory box.  It really showed in the way the car performed.  They all still suffer from braking issues but it is diminished from before.  The race brakes will stay but a diet is in order for each car.  I never felt like I didn't have enough tire under the cars so I doubt I'll swap the compound but I'll know better when I run the lightened versions of the cars on the tracks.  The numbers don't lie.  I have a few predictions but I don't want them to bias my build decisions just yet.  One last thing of note is that of all the adjustable part I installed,  none were changed in any way so it was purely default tune for all of the cars.

[Blooze]

So I calls up the guy down at the Ford dealership who definitely remembers who I am since he sold me that S7 and the F100 on the same day because, basically, they were the same colour.  Anyhow, I asks him if he still had that cherry S281 that he'd had on the show floor.  He said, "Why, yes we do, but we have a young fella looking at right at this moment."

Yeah, you do...  Flake.  So we chatted and talked and pretty soon it was all mine for the tidy sum of 20000 Cr.

Now, I knew I was behind on a couple steps of this deal so I jumped right in and did my normal initial build out.  Then I went and re-read where ole Fit was at...  I should have read the last post first.  I got a little extra on mine.  Besides all the parts he mentioned, the Race level Clutch is part of my startup regimine.  I also throw my basic, in this case, RWD Toon to it.  So, with those two exceptions, me and Fit are more or less in sync on this deal.  I esentially have a 3000 + lb C Class muscle car with 413 Pi points against it.

And as a testimony to the variance in our two skill levels, my time on Sebring Club is 75.042.  Maybe a little more practise will do me some good.  I rarely run the Club track since the "Short" is one of my QR tracks.

Since the Saleen was in debt to the Shop for almost 80 grand, I went to a private room and ran some of the QR tracks.  In short time I had the debt paid down substantially and an intitial QR rating to go with the initial build out...  

Saleen S281

RA Short	65.631
Seb Short	84.049
Tsukuba	63.873
QR	213.553

It looks pretty poor because I am tracking this in the B class office, since that is the destination of this project.

So, I'm ready and waiting for the next step.  I most definitely can use the wait time to practise a little bit.  I trotted out my Build prognosticator and checked out what would be the best route to 500 Pi points.   The way this car rolls up the RPM I leaned toward a few engine options that I knew would speed the engine ramp up a bit - a street level cam and race level flywheels.  From there I add sport level air mods and then there was a split - one way was Sport Weight Reduction, the other was Rims and Wider tires.  The Rims one looks better to me.

I'm attaching the Build sheets so you can see the various parts on the two lists.  I haven't bought anything yet.

I had to take a picture for my files and the Insurance Co so I attached on of those too.  Like I said, its a cherry little bugger...

$

PS: I sent you a copy of my Toon with the car in its current state.

[Fit4aking]

Seems your all up to date with the car Blooze.  I took last night off to just putz around and do nothing.  I found myself asleep in my racing chair reading a car magazine by 9:30.

The 'Stanger is the lightest of the bunch and between it and the G37, both can have race weight reduction before cresting into A class.  Neither would have much room for anything else but it is possible.  I've done some window shopping on each to see what used the most PI and those notes will follow as the build progresses.  The S281 has the widest stock tires, the least amount of weight, and the most torque.  Hmmm.  I do believe we have a statistical winner, but only in theory. 

I intentionally kept from QR'ing the cars as that would pit them against themselves too early for me but that doesn't mean everyone has to be as obsessive about it.  Seeing how they stack up on the same track will be the overall goal but I don't want to see the results too early.  Kinda like three seperate shops building a car for a far off race when they can only test on the local track and hope the car suits where they are going.  Each should be a good all arounder by the end though.

It really is hard to slow down and not do the things that you get accustomed to.  Like adding the Race Clutch.  However stepping out of that comfort zone could free up some additional PI.  I agree that the weight and speed of shifting is beneficial but the cars will show me what they need and of the three the 'Stang should be shifting the least due to the power band.  Wider gearing may make up for any time lost between gear changes.  Just an observation, and a peek into my build rationale.

Your time is split between my initial run and my initial build so I doubt your too far off the pace.  However some seat time will help later on.  I've driven the cars on all of the ribbons of their "home" track and on a few different courses with different turns but none on the same track.  Right now the big battle is which car will get to run Maple Valley and which track will substitute for a high speed sweeper stand-in. Hehe.  I think the Stang will get the honors since Sebring doesn't have a smooth sweeper to test and both Silverstone and Motegi do.

All of the entrants are currently making the shop money against the AI but none are level 5 just yet.  The version 1 testing will bring all cars to that point and should start breaking even with the upcoming improvements.  By the end I'm sure it'll be profitable and I will try to set up a decent race to take pictures of the cars in action so even the propoganda will generate some income.  All of the times I hear of people that are too broke from building cars must not take too much time to run them as I do.  I wouldn't have nearly enough cash if I only drove cars in the tune section.

The next step will be to determine and install the version 1 builds on all of the cars.  This may take a little time but should be completable in one sitting.  Hopefully tonight.  I'm still looking for a decent paint scheme for the Saleen and I have a few possibilities.  The CLK is done up nice and the Infinity is finally primered and dry so I can start laying down the latest concoction in my head.  If anyone would like to have a go at a Dan Gurney Edition livery for the S281 that would be great if not I'll get to it soon.  It looks simple but there are several small detail pieces that may end up crossing my eyes.

One last thing.....I'm going to move this build up and tune thread over to the daught net eventually.  I just wanted to get a head start here and see that I can keep on track before failing miserably over there.

[Blooze]

Ah, I think I see where you are headed with this over on the Daught Gnet.  Really good idea, that.  

Would a description of my build to 500, with an explantion of the parts chosen, the logic of why and etc., be of any value to your eventual project over on the Gnet?

?

Oh, and I'll keep my little QR adventures to myself...

[Fit4aking]

If you'd like to add your spin on things it is absolutely welcome.  Either here or on the daught net, when I get it posted that is.  Differing opinions and preferences would probably add to the project and keep the "one right way" thinking out of the picture.

You can also feel free to add your QR session times on any of the cars you end up building.  I don't mind.  Sorting information is never a problem and I understand wanting to see where things stack up in the big picture.  If you get a chance to buy or build any of the other cars a QR would be staggered at this point by the PI of the cars as they sit in my garage.  I planned on waiting until the end of the build up with the final versions to really do the hard number crunching comparo but along the way is good too.  The more info the better!!

I have a decent livery for the CLK done so I'll send it over when I get a chance, maybe on a car if you don't have one.  I think you'd like the Infinity the best out of the bunch, it really is a seamless driving experience when you get past the poor braking.

[Blooze]

I don't have either of the other two cars - I am starting to get car overload so I appreciate the offer, but I'll just stick with the Saleen.

However, that Dan Gurney paint for the Saleen does sound interesting... 

(...isn't it pathetic, how blatantly I beg...)

I will have something at the appropriate times for both here and the GNet.

$

[Fit4aking]

I think you caught on to one of my other ploys.  The last time I did one of these threads I used on car and it may not have been overly popular.  Running 3 may appeal to a broader audience so it should catch on a bit better.  Come to think of it I'm pulling a T10 and offering up options for the masses and not the hardcore bunch, uh oh!!

If/When I complete the Gurney livery I'll be positive to send it over. No begging needed. 

[Fit4aking]

Started this thread to coincide with the information I will post here as well.

http://forums.forzamotorsport.net/forums/thread/3493837.aspx

Feel free to post away if you want to add anything to the conversation.  Lots to process and for three cars it will be daunting but the mass appeal of 3 cars seems to be working.

[Fit4aking]

Mercedes Benz CLK55 AMG
Sport Exhaust
Street Flywheel
Race Brakes
Race Dampers
Race Front and Rear Sways
Sport Weight Reduction
Race Transmission
Race Driveline
Race Differential
235/30-19 Front
255/30/19 Rear
Momo Ten-S

My first build up of this car and done purely on instinct.  Remember I already had my personal “platform” parts installed.  My first stop was weight reduction, this car is heavy.  Race wouldn’t fit without being too close to A-class and leaving little room for anything else.  I added grip to help offset the cars weight with grip but I was delighted to see that it already came with upgraded tires.  There was no Street level upgrade so it’s fine to assume that those tires are already installed.  Not a lot in the way of available width upgrades so I’m pretty much stuck with what they give me.  Next I went to the engine.  If you notice all of the parts I added, exhaust and flywheel, also reduce weight further as well as add horsepower.  I had a few PI left over after that so I decided to try on a few sets of wheels.  I looked for personal preference not just weight.  If the lightest wheels look good and fit the PI go for it, if not, pick one’s you like.  I installed the Momo’s and upgraded the diameter to reduce tire roll a tad.  Still had a stray PI or two to play with so I went to Driveline.  This upgrade is generally good for a few single PI at a time so I leave it for last to fill in any gaps left by other improvements.

Now for more track time.  Need to see if the upgrades helped the car as much as I envisioned.  Ten more laps in a private room and the time was improved.

Silverstone International 1:30.902   1.4 more second off the initial time and still not gear tuning, no alignment adjustments, or differential tweaks.  Not setting the world on fire but I’m not trying to reinvent the leaderboard here just make the best of this particular car.  Here are my notes after the race: Car has obvious wheel spin issues.  Pushes a bit but the tire temps are fairly even.  Still a heavy car but much more nimble.  The front feels heavy and it takes a few laps to get the braking zone and the pick up points for the throttle.  Almost like the mass of the car is too far to the front.  Despite advertised bias this thing is front heavy and pushy because of it.  Was able to make several consistent laps and improved the times I was running just by adjusting my driving to the car.  I hope to be able to tune the issues out due to PI constraints on the build.  This is by far the most limiting build of the bunch.

Saleen S281
Race Air Filter
Sport Exhaust
Street Flywheel
Race Brakes
Race Dampers
Race Front and Rear Sways
Race Chassis Reinforcement
Sport Weight Reduction
Race Clutch
Race Trans
Street Driveline
Race Differential
275/30-19 Front
295/30-19 Rear
Fikse Profil 5S

Another instinct build.  Same process as before, weight reduction first, opted not to run full race due to the amount of PI it took but it fit in B class so it is still an option, consider that a mental note.  I checked out Chassis Reinforcement with this car.  Being the lightest it wasn’t absolutely crucial to or detrimental to add some weight back to the car.  The reinforcement actually increased the handling attributes of the cars statistics and wasn’t a huge PI waste so I went with it.  Next was tires, again this one came with street tires installed and I stated that it has plenty of grip.  I upgraded the width despite the fact that I don’t have grip issues.  The engine is also not a weak point but I went ahead and added upgrades that would remove the weight of the Roll Cage as well as up the power of the car.  There was still plenty of PI left to go ahead with the clutch upgrade too.  As with the Mercedes I added the wheels I liked on the car and filled in the gap with driveline.  Happy with the build I went off to the track once again for ten more laps.

Sebring Club 1:12.237   2.7 second decrease.  HUGE.  Still no adjustments, but not quite as much of a gain as I wanted.  I’m never happy until I make 5 to 6 second gains.  It rarely happens!  Here are my notes from immediately after the race:  Gearing too tall, decent 4 speed but not enough acceleration.  Almost too much grip with the wider tires.  Never had an issue hopping back on the throttle or locking up under braking.  Took nearly 3 laps to push the braking zone before I found a sweet spot. Tire temps were hotter on the outside but should be expected with default settings.  Car overall felt pretty stale.  The build took some excitement out of driving it and I think it all boils down the "safe" wider tires.  I think they will go on the next build.

Infiniti G37 Coupe
Sport Air Filter
Sport Exhaust
Race Flywheel
Race Brakes
Race Dampers
Race Front and Rear Sways
Sport Weight Reduction
Race Clutch
Race Transmission
Sport Driveline
Race Differential
Street Tire Compound
265/30-20 Front
275/30-20 Rear
Hamann Edition Race
Top Secret Front Bumper
Top Secret Rear Bumper
Top SecretSide Skirts

Ah, the Infinity.  Secretly I really hope this car does the best but I have to remain impartial and not spend more time with this one than any other.   Lots of PI to burn here compared to the other cars.  Similar build path, weight reduction first.  Notice I didn’t add the roll cage to this one.  The numbers didn’t fall in it’s favor when I selected it so it would have only added in more weight that I desperately need removed.  On to the tires.  This car by far has the worst stock tires so I went ahead and upgraded them before looking at the widths to keep it on par with the other cars.  I could have gone with Y-rated or DOT’s but decided against it.  Tire width was a large increase but I know the S281 has some wide rollers so I tried to get close to its handling number with this one.  When I was looking around the options I couldn’t help but install the Top Secret body kit.  Purely cosmetic and since it only added a handful of pounds I’ll take the cosmetic enhancement but trust me if push comes to shove the panels will go.  Next was the same lightweight philosophy when I went hunting engine upgrades, flywheel, exhaust, airfilter, all weight removers.  Not to sound like a broken record but I went after some sweet looking wheels, upped the diameter to reduce tire flex and filled in the gave with driveline.  Whew, three similar build approaches to three different cars.  Off to the track.

Motegi East 1:32.487   5.2 seconds, finally, a wholesale improvement.  After ten laps I was thrilled at the cars improvement.  Here are my notes:  Very light in the rear and heavy in the front.  Pushes and then snaps the front around on accell.  I think it has too much front tire and still is a tad heavy.  More weight reduction will eat a lot of PI but it may be worth it.  Brake pressure seems to be far too low as it still takes a lot of input to get the car to stop.  Gearing absolutely sux with less weight and different size tires.  Must be addressed soon or I'll be crazy trying to pilot this thing.  I couldn't get it under wraps to really push the car due to it still having so many issues with the build.  I surely took the wrong path with this one.

Each car is becoming a different monster and I can say that I will be revisiting the upgrade shop soon.  Yes before tuning anything.  The Saleen and the Infiniti will lose some tire width to bring up the tire temps and increase grip.  The power of each car will also be reevaluated to make room for more torque, even if I have to trade off for a few pounds.  This should show that no matter how much you think you know, chances are you’re not going to get it right the first time.  I would feel horrible if I went ahead and started tuning the cars without evaluating the build only to have to start over.  As you’ll see weight and weight bias have a lot to do with the feel and performance of a car so it needs to be set before the tuning process can really be effective.

You’re all now caught up to where I am.  Next opportunity I have will be the rebuild and then more track time.  Once the builds are finalized I’ll get crackin on the tuning of these things and we’ll be that much closer to the runoff.

[Fit4aking]

Spent tonight looking over the builds and my previous notes to think up the best way to help get the cars the things they were lacking.  Each had too much grip, not enough torque, and still left a tad to be desired with handling.  Each was a safe tune, intermediate would be fitting perhaps a bit beginner with the Saleen.  The fix, make it more interesting to drive, remove grip, add power and hold on.  Each car is a tad more lively now but not a drift machine or uncontrolable.  The builds all seem to bring some character back to the car and I can get a better feel for what I need to tune out or into the car instead of what I need to change with the build.  In other words, the foundation is set for the tweaking to begin.  Here is the version 1.2 builds as well as lap times:

Mercedez Benz CLK55 AMG Build v1.2
Race Pistons and Compression
Sport Oil and Cooling
Race Brakes
Race Dampers
Race Front and Rear Sways
Sport Weight Reduction
Street Clutch
Race Transmission
Sport Driveline
225/35-19 Front (stock)
245/30-19 Rear (stock)
Momo Ten-S
Silverstone International 1:30.341

0.600 decrease in time.  Not bad for taking horsepower away and replacing it with torque!  The car doesn't handle much worse than it did before but you can tell the grip isn't as good.  Nothing crazy, the rear end is still fairly planted, the front still pushes a bit and it generally feels heavy, but it IS heavy.  Nothing out of the ordinary that can't be tweaked to drive better.  I wanted to be into the 1:29's but I kept missing braking points or going into turns too fast so I know there is more time in the car but I'm sticking to the 10 laps per car per session and calling it good enough.  Once the tuning starts I doubt it will be worth it to jump in and out of lobbies so make the money while you can, the next few test sessions will be just that, test sessions!!!

Saleen S281 Build v1.2
Sport Air Filter
Sport Fuel System
Street Displacement
Sport Pistons and Compression
Sport Oil and Cooling
Race Brakes
Race Dampers
Race Front and Rear Sways
Race Chassis Reinforcement
Sport Weight Reduction
Sport Clutch
Race Transmission
Street Driveline
Race Differential
265/30-19 Front (stock)
295/30-19 Rear (stock)
Fikse Profil 5S
Sebring Club 1:11.646

0.800 decrease in time.  Definitely like the torque build better.  The car is still planted, just the slightest hint of throttle oversteer, the front could use a touch of additional turn in but all in all a very capable car in default tune.  The trans didn't seem as far off now that I had the grunt to lug it up through the gear and I may have just enough torque to make this car a 5 speed.  If I can lose 6th gear I'll save the time of that one shift.  I don't know why I ever upgraded the tire width at all it doesn't need it at all.  Couldn't be quite as consistent but I was being quite aggressive after lap 4 to try and get that lap time closer to 1:11, it wasn't in the cards tonight.

Infiniti G37 Coupe Build v1.2
Sport Air Filter
Street Ignition
Sport Displacement
Sport Pistons and Compression
Street Oil and Cooling
Race Brakes
Race Dampers
Race Front and Rear Sways
Sport Weight Reduction
Race Clutch
Race Tranmission
Street Driveline
Race Differential
Street Tire Compound
245/35-20 Front (stock +2)
255/35-20 Rear (stock +1)
Hamann Edition Race
Top Secret Front Bumper
Top Secret Rear Bumper
Top SecretSide Skirts
Motegi East 1:32.500

So no big gains there, but I lost a ton of tire width so to be able to turn the same lap times is a gain in my book.  The car isn't waisting grip but I was chasing the rear end around a bit more with this car than the others.  I still have to remember to brake then turn but when I forget it is understeer central.  I have to be uber sure to remember not to try to tune that out, its a driver input causing the issue not the car.  It still feels underpowered but when I glanced down at the acceleration it was on par with what I was expecting of a stronger car.  I'm pretty sertain that this build will stick around and prove itself when the tune falls into place, if not than I'm not opposed to a tear down even this late in the process.

 I think from here I'm going to pick one car at a time and tune it out.  Each car will present different challenges so don't think it will be over and done with the first car.  I'm thinking the Mercedes is up first to try and work around the heft of the car and then try to appy what is learned there to the other two cars.  If something pops up that could benefit a previous tune then its no harm to revisit one or the other.  Some of my older builds and tunes get an update when I stumble upon something that I think will improve it.  Don't consider a car completely done until you've rung every last tenth out of it.