Tubing based MPFI intake for Scout?

[Hoplee]

here's another pic to add to those in the previous post. "One-Log" looks easier than two, but bending square runners would be a pain. It might be easier to just fab them up out of sheet-metal. The ones that this guy makes don't have provisions for exhaust or coolant, but he's only asking for around $325/per

http://www.lakeheaders.com/3x2_4x2_hemi_intakes.html

[Drift2XL]

Reno if you're serious, the Magnum heads + Magnum FI intake should work fine.

But, as Hop suggested, the best way is to get a wrecked truck with a 318 in it. I would look for something pre- OBD2. After that the manufacturers have been putting more and more sensors in the engine computer that are wired to other parts of the car, like ABS, traction, etc.

Plus there's the option of putting in the OD trans in and the fuel mileage expectations can increase to 20-25 depending on rear gear, tire height, your driving.

Just remember that the fuel lines now are drawn through by the engine mounted fuel pump. A high(er) pressure FI system is better pushed. So mounting an in-tank pump and all the hard and soft lines should be upgraded for the high pressure system. As well as a return line.



That's a better idea right there. Should be cheaper too. I've seen at least one proto FI manifold with that design. So it should be good.

So its looking more like a stock Viper style intake. Just with one central instead of twin TBs

[Drift2XL]

Or we can split it in half and fill in with sheet. Make it an oval.

Then we won't have to bend anything.

[Hoplee]

NOW you're talkin'!

[RenoWrench]

Yeah you can Reno.

But thats too easy. 

If that isn't a motto that everyone should take to heart for just about every situation I don't know what is.   

I think Hop is right and a engine swap would probably be the best bang for the buck. 

At this point it is pretty academic.  I bought the van for $600 and slowly drove it home (with basically a restart a every light an stop sign) with the original muffler.  It actually runs alright, all things considered.  Absolutely zero smoke on start up or under load but I need to go through and do the timing, cleanup the carb etc. and I wouldn't be surprised if the exhaust crossover is clogged up. 

I think I can probably get a whole lot of life out of the current motor. 

The trans might be a whole other story. 

You could always add a little rice with a couple of these Hop.



Nothing like carbon fiber to dress up a Scout.  I do have to say well done on keeping the IH motor in the Scout, most of the modified Scouts around here (and FJs for that matter) are running a chevy of some sort under the hood.  It just seems sacrilegious, kind of like aircooled VWs with a Subaru swap.

[bimmerlovere39]

I'll just throw some idea out here, no idea if any of these are actually good ideas, but... yeah


What if you had something like this, but with the top sealed off?  Square, straight runners... not sure if it'd work, but I figured the idea was worth throwing out.




What about a setup more like this?



Apparently, it works for the F430




What about an plenum less setup?  Having the trumpets, and injecting the fuel into the trumpets?


(Yes, I know its a rotary  but I have seen it on BMW I6s and on Chevy Small blocks.  You could stick air filters on the trumpets, I suppose.

[Drift2XL]

Actually Bimmer, the first one is the style I first though of. Its just kind of morphed itno the combination of one like that and a log type. We split the tube in half and fill in the gap with sheet metal.

I figure I can set up a guide to cut the tube in half with a Metabo. Think of an angle grinder with a big cut off wheel. I can then shear the sheet to fit the middle. Instead of having to use the laser for really tight tolerances.

The flange would have to be cut on the plasma to get the pattern right and close. Then finished with a verticle mill to clean off the slag (burn) marks. I'm figuring on TIGing the main body and runners in. And a pass with a MIG on the bottom of the flanges to make sure of zero leaks. Then machine off the excess to give a truely flat surface for the head mating surface.

Right now I'm thinking 1/8 for the plenum, 3/16 for the runners, and no less than 5/16 preferably 3/8 for the flange. I've seen 1/4 bow with a fair amount of pressure from fasteners. The stiffer the flange the better.

Bimmer, you said you wanted to be a mechanical engineer. This is the process you need to follow. Concept, rough design, how can it be created, finished design. And don't look down on the smart guys in the shop who question your design. Just because you have a peice of paper on the wall of your cubicle, doesn't mean you know the best way every time. Years of experience will give much more insight on what really works than a college degree. You either have a mechanical common sense going in to college or you don't. College doesn't teach you that. The only way is through doing it.

I have that problem now with the engineering that I have to make due with. Ill fitting parts and concepts that just make no sense at all. They let the computer do the work and forget all the classic engineering such as checking the numbers behind it. Its a cluster F$%^. The only thing about my job I hate.


PS The second is basically a log type just made to split to place the radiused air horns in. Good for an 8000 RPM screamer. Not so much for a torque monster bulldozer engine. But I am going to flare the ends of the once welded in one peice runners on the plenum side to get a smoother entry. I had that planned all along. 

And I don't know if Hop wants to look like a mud swamper with eight stacks sticking through the hood. But it would win tons of bonus redneck points.

[Hoplee]

What I hate most are those "smart guys down at the shop" who insist, with very colorful language, that what I've drawn for them is impossible. This always happens right before I go down there and do it for them! 

Sorry about the absence fellas. Internet access has become somewhat spotty.

@Drift: Lack of internet and losing my cellphone are a pain. How are things with you?

[Drift2XL]

Crazy.

The Clean Water Initiative that Congress passed last Oct or Sept is finally hitting the shop floor. I got orders coming out of my ears.

Original plan was to have 9 machines out by May 1st. We did 3 in March and barely made it. Plus two is the longest we ever done (with 1/2 inch thick side frames) at 45 feet long. And another two are the widest at 8 feet wide. That's the four I'm doing now going to TX. Then there are five going to Vegas that are just six inches narrower than the wide ones.

Upside - OT and lots of it.
Downside - Not much free time to do side projects. Especially for the laser. I may have to go on night shift.


I saw the invites Hop. I took Forza off my small 10M HD around the beginning of the year. In the last month or two my disk drive has been acting up. It scratched up RacePro pretty bad and took me a long time to get it loaded. I'm trying to stick to HD loaded games in fear of ruining the game disk. So I'm playing CoD and RP as they are the only ones I have uploaded.

And not really RP until they get a patch out for the horrible bugs in multiplayer.