Dual 34mm throttle bodies on 1.7 Type 4?

vincestroud
Posts: 17
Joined: Thu Aug 21, 2014 4:06 pm

Dual 34mm throttle bodies on 1.7 Type 4?

Post by vincestroud »

I have searched and searched, and can't find anyone doing this - which probably means it is a bad idea.

I have a stock (as far as I know) 1.7 out of a 914, which I am in the process of converting to upright cooling. This engine will be getting megasquirt fuel injection.

I don't believe the mild mannered nature of this engine warrants individual throttle bodies. My thought is to find a set of dual carb intake manifolds, (like these: http://www.ebay.com/itm/VW-Type-1-2-Por ... 1642270257 but just the manifolds) fit them with injector bungs, and attach a ~34mm throttle body on each. I want to avoid the throttle being a toggle switch, and thought this may be a good compromise between performance and ease of packaging (a single throttle body, plenum, etc). Am I crazy?

Thanks,
Vince
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Paul H
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Joined: Wed Jan 22, 2003 12:01 am

Re: Dual 34mm throttle bodies on 1.7 Type 4?

Post by Paul H »

I've got some manifolds and single throttles -prototype stuff made on vanagon manifolds-throttles are 36mm or 38mm

Image
Real parts=Real Performance-Get Real
Opinion is the medium between knowledge and ignorance (Plato).
vincestroud
Posts: 17
Joined: Thu Aug 21, 2014 4:06 pm

Re: Dual 34mm throttle bodies on 1.7 Type 4?

Post by vincestroud »

That is exactly what I was thinking. Glad I am not the only one. Did you build those throttle bodies?
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sideshow
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Joined: Mon Oct 27, 2003 11:00 am

Re: Dual 34mm throttle bodies on 1.7 Type 4?

Post by sideshow »

Judging by that linkage it looks like it is going to be a 4 x IR setup, cool!
Yeah some may call it overkill, but you can't have too much overkill.
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Paul H
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Re: Dual 34mm throttle bodies on 1.7 Type 4?

Post by Paul H »

No I had some idf throttles on there using the Porsche fan linkage and couldn't be bothered removing it :wink:
Real parts=Real Performance-Get Real
Opinion is the medium between knowledge and ignorance (Plato).
vincestroud
Posts: 17
Joined: Thu Aug 21, 2014 4:06 pm

Re: Dual 34mm throttle bodies on 1.7 Type 4?

Post by vincestroud »

Paul H wrote:No I had some idf throttles on there using the Porsche fan linkage and couldn't be bothered removing it :wink:
So did this setup ever run? I am curious as to the results.
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