Update on my Multi throttle project.

[rs4pro3]

Right now I'm jsut going to finish this adapter and see how it works and see if it provides any gains. I've already though up a smaller more compact design I can work on next.

[FredK]

Yeah, just get on down to Home Depot and get a rat tail file and smooth out the bores on the adapter plate. You'd be amazed how much better it'll look. I had to make cutouts on an aluminum back plate of an electronic instrument cabinet, and all I had was a drill press (a sukky one), a rat tail file, and a jigsaw. After making a hole with the drill press, I had to smooth out the hole's appearance with a file. The results look fairly good. If you take a little time to smooth out the appearance, I'm sure it'll make a significant difference.

Laying out accurate holes on a plate is a time consuming job, especially if all you want to do is bolt it up! :D But if you keep at it a few more hours, it should look pretty good.

And if the holes don't look perfect, remember, drinking alcohol can correct any mistake.

[rs4pro3]

Already picked up a file set, what you described is what i'm doing but I'll use a dremel to further smooth.

[modifiede30]

Ely you know my opinion on all the naysayers.

I've got an old e30 (2.7L) intake lying around and was thinking that instead of using individual tb's, maybe a single huge one, like from a ford truck or something, mated to a large plenum off the intake runners of the 2.7L intake (obviously cut off about 3-4 inches from the head). Think it would work. I think I saw someone on e3s with something similar. How much did the tb's cost you anyway?

[george graves]

I hold more respect for Ely for TRYING to CREATE and SOLVE this problem on his own than I do for the guy who went out and dropped $2500 on a damn intake from BMP/Dbilas.

yep - but there is something to be said for sing the right tool for the job! - and a drill press does not make a very good CNC! But it sucks not haing access at a machine shop - I need to take a class at City College - just so I can get some more seat time.

George Graves...

[rs4pro3]

RedBaron86325 did that and here was my version to start

I was thinking of figuring out some way to mount those carbs to the runners when I found these throttles.

I buaght the throttles with all the inecjtors ans stuff for $150 from GMW[/img]

[modifiede30]

Are those the tb's on the one you're working on or do you have extras?

[Inspar8r]

What if you designed a new spacer in a trapezoid shape, so that when you mounted it to the engine, theTBs would point up and over the Brake booster?

Anyoe else with the means, or a big enough pair to do the same? Didn't think so. Redbaron is the same way with his dula TB setup and airbox, OH yea, you guys must have forgotten that one.

Let me sum up Chris's words in a funny P diddy style:

You're just mad cuz he's doin what you cant to do!!!

Ely, i want to see individual throttle bodies mated to an m20 with an e36 MAF under the hood of your e30.

And i mean it!!

[gstuning]

Maybe Ely you didn´t rember my word wich where to angle the TB upwards above the brake booster, but nevermind that,

What you might be able to do is have a remote vacuum system, I know the aussies do that on their s50/M50 swaps, and I have not been able to contact them yet,

If anybody knows there email, it´s BM-Auto engineering in Perth Australia

But I think the end product is going to rock,
and whatever the intake box will look like it will most definitly flow way better then any honed M20 manifold, I mean there are 6 50mm TB´s there,

[rs4pro3]

I'm workign on it, I"m working on it. Modified those throttles showin in my other pcis are a set of three stripped out dellerto Carbs I Buaght from italy. The throttle bodies I"m working on making are from a Euro M88 E28 M5 engine. With them they already have a TPS, 21.5lb injectors, ICV valve hookup and porting(very nice design with a little port on every thorttle for air from the ICV. I could do that with the adapter but then I'd need a milling machine to put that complex face onto a block of aluminum. Basiaclly I figured out the minum sized block I needed, then went to ebay and found the closest sized block so I wouldn't have to cut it down any. I may do that if I make a scond adapter plate, but then I've got another idea that would require more machining but I could have the throttles and all down to 3-4 inchs long, leaving plenty of room for the booster.

[schnitzer teil-jäger]

OK I have tried not to add....
1. glad you want to do this
2. Fix the existing problem:
A. cut the throttle webs so that you can center them over the head ports. If you can weld aluminium. As is the car will lean out on #1 and #6 due to the restriction and bye bye pistons.
B. Sell the manifold to someone who has an m30 that has the ports in the right place and buy an e36 euro intake that has the spacing for the m20.
C. Buy one already done.
w

[Charlie]

OK I have tried not to add....
1. glad you want to do this
2. Fix the existing problem:
A. cut the throttle webs so that you can center them over the head ports. If you can weld aluminium. As is the car will lean out on #1 and #6 due to the restriction and bye bye pistons.
B. Sell the manifold to someone who has an m30 that has the ports in the right place and buy an e36 euro intake that has the spacing for the m20.
C. Buy one already done.
w

*nod*

Very good, and very realistic post.

-Charlie

[rs4pro3]

gstuning: I didn't forget about making them angle them down wards, I'm just seeing if it can be made to fit first then I can fine tune. I've thought of converting to a Hydro brake booster like most of the Euro S50 swap guys do but Figured it would cost close to $500 for all the parts.
Thanks Wes for the tips, A: I could do but the throttles use the webs to run the ICV ports plus then I'd have to machine new spindles for the butterflie plates.
B: manifold only dirrectly bolts onto te S38 or M88 engine and will not fit the M30, As for buying a Euro E36 manifold IF i did that I might as well buy a completly built manifold but I don't have that much money to spend on a Mod like this. $2000 is way to much for just an intake that adds 15-20 hp.

[Werksmini]

Hey cool project. This is a little off topic but here is a guy thats doin the same thing to a golf. May be good for a look, its pretty interesting.

http://forums.vwvortex.com/zerothread?id=942528

[Z3Jonathan]

OK I have tried not to add....
1. glad you want to do this
2. Fix the existing problem:
A. cut the throttle webs so that you can center them over the head ports. If you can weld aluminium. As is the car will lean out on #1 and #6 due to the restriction and bye bye pistons.
B. Sell the manifold to someone who has an m30 that has the ports in the right place and buy an e36 euro intake that has the spacing for the m20.
C. Buy one already done.
w

rs4pro3: I think its cool that you're taking this project on. Kids now adays are often afraid to use their brain and their hands... especially engineering students.

That said, I think the best solution if you want to use that set of TBs is to dissassemble them and try to better align the TBs to the ports. Even if you smoothed out the adapter plate, it looks like you'll really be forcing the intake air to make a 90 deg turn, especially on cylinders 1 & 6, and even 2 & 5. It looks to me like it would be difficult to get even flow across the intake ports with an adapter plate of any reasonible size.

Jonathan