Dual 34mm throttle bodies on 1.7 Type 4?

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vincestroud
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Dual 34mm throttle bodies on 1.7 Type 4?

Post by vincestroud » Thu Aug 06, 2015 2:37 pm

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

Post by Paul H » Fri Aug 07, 2015 4:40 pm

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

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

Post by vincestroud » Sat Aug 08, 2015 12:42 am

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

Post by sideshow » Sat Aug 08, 2015 6:01 pm

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 » Sun Aug 09, 2015 7:43 am

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

Post by vincestroud » Fri Oct 02, 2015 3:10 pm

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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