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I'm still debating on how I want to set up hte cylinders. I'm pretty sure i can say that two ECMs is out of the question, but as for the rest i'm just not sure yet. As i understand it, the IAC is made to compensate for extra engine load, things like air conditioning and the like. But I do...

the stepper motor in this case opens a valve that bypasses the TB, its not connected to the throttle plate.

well that certainly clears things up. It seems contrary to my intuition. but that is exactly why I ask here. Thanks for your input.

well the throttle bodies are for a 3L engine and they're going to be two of them on a 5.2L engine. so they're not going to be flowing half as much air as normal. they'll be flowing 87% they're normal. The problem with trying to block off one and just compensate the other is that the engine is...

I want to use them for idle control valves. I'll be using standard mechanical linkage for the throttle plate. so basically dual idle control valves.

This question might be in the wrong place because it's almost an EE question but here goes. I'm building an intake manifold and would like to use two TBs from dodge stealths on it, aka 3000gt. The ECU I plan on using has output for a stepper motor, but in this case I would have two. I'd be...

that's a really great link, sorry the pictures are so small, but you see, on the modena engine and the way the cross rams intake runners differ. the cross ram actually has a smooth transition from the lip of the runner to the wall of the plenum (albeit only on the bottom of the runner)...

well I'm definately going to go with EFI and two throttle bodies, but more along the lines of the geometry laid out like ferrari has it. those cross rams have the runner molded into the "plenum", something I'm not going to be able to recreate. on top of the fact that those cross ram manifolds...

I'm goign to be building a custom intake for my old musclecar, and of course, I want it all. I can accept this is not possible, and I'd like to try and work from an existing design that looks like something I can duplicate at home, but still is an attention grabber when the hood is open. Such...

i've actually come across your site before. How did your setups end up in geometry as far as king pin inclination, caster and such? were you able to machine the upper mount in a way to improve everything or were you locked into the design given to you by honda or VW. I've been looking into...

what are you referring to when you say it would depend on my firing order? all those numbers or the effectiveness of the cross over pipe, and if it's the pip, please elaborate

yes, the design looks a lot more complicated than it is. OEM designers have the added bonus of being able to make a mold for a part and having complicated surfaces inside of their intake. In this design the radii of the curves are all sizes I can find and purchase myself, and every curve is...

I have had the idea to build my own intake manifold/plenum and have come up with a design that I like aestetically, I designed it on a cad program and would liker to know what problems might be in the design. the runners are long enough for the tuning i want, but I should stress that this was...

I used to have a dodge stealth and it had a series of butterfly valves built into the plenum, that opened at high rpms, basically changing the runner length, its not quite a variable length runner, but it's something. I'm definately going to try and put a 5 speed transmission on for sure, but...

I am interested in this reverse flow cooling, do tell more...

well I was planning to get a set of fast burn swirl port heads off of a 87-91 318. they have a smaller combustion chamber than all the other heads, and also, with porting and oversized valves, are very capable of performance. that's probably the way I'll go. I am shooting for a CR of 9:1...

yea I figured it might be a compromise, but thanks, that's what I was looking for. And yes I know the benefits of EFI over carbs, and that's why EFI is getting put on this engine. thanks all

thanks for the line on that book, I'll definately look into that. Also, I'm not getting a new car to go with my engine. and I am planning on doing something with a 5 speed trans, which is a whole new mess of problems that i'm not getting into here, and I know how to rebuild an engine and tune...

I'm going to be building up a small block mopar engine. a 1971 318 block. I have big plans for it. My goal is to get the best fuel economy with the most power. Simple and I know, that's everyone's goal. But my question is, as far as getting the best fuel economy, where do I want my powerband...

unforuntately I'm a terrible artist, but I dont know any other way to put it. I'd just liek to know if it's possible to use a front spindle, including hub, brakes, calipers and make it work with double A-arms even though originally it used a mcpherson strut type suspension. The more I think...