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Ripinitup
 Post subject: Fuel pressure
PostPosted: Mon Aug 26, 2013 11:37 pm 
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Location: Lancaster PA
1915 C35 cam 044 big valve heads with a weber side draft carb. Has a type 3 turbo running 15 PSI of boost. Is 8 psi of fuel pressure to much? I just bought this buggy and I want to make sure the set up is done rite. It currently runs great with the Holley red fuel pump. Thanks in advance :mrgreen:


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Ripinitup
 Post subject: Re: Fuel pressure
PostPosted: Mon Aug 26, 2013 11:41 pm 
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Location: Lancaster PA
Forgot to add its 7:1 CR


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darrell
 Post subject: Re: Fuel pressure
PostPosted: Tue Aug 27, 2013 8:55 am 
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Location: lockland ohio
most of your idf or ida carbs only need 3lbs now if you was running a holly carb 7lb .......more press don't mean more vol.

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bluebuggy
 Post subject: Re: Fuel pressure
PostPosted: Tue Aug 27, 2013 9:50 am 
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Location: Corydon, IN
You need to get on here
http://shoptalkforums.com/viewforum.php ... 175eb15897

They will be more help on a turbo vw
Also post some videos:mrgreen:

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Aaron Creech
 Post subject: Re: Fuel pressure
PostPosted: Tue Aug 27, 2013 12:45 pm 
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Location: Germantown Ohio
Side draft webers will only take about 1.5-2 psi at idle. You really need a boost referenced regulator that brings the fuel pressure up as boost rises. Also,if you plan on running 15psi boost all the time you need to run race gas.
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Ripinitup
 Post subject: Re: Fuel pressure
PostPosted: Tue Aug 27, 2013 3:43 pm 
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Location: Lancaster PA
Thanks everyone. You have been very help full. :mrgreen:


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Ripinitup
 Post subject: Re: Fuel pressure
PostPosted: Tue Aug 27, 2013 4:12 pm 
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Location: Lancaster PA
When you say race fuel is that 108 or do I need to go higher


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Ripinitup
 Post subject: Re: Fuel pressure
PostPosted: Mon Sep 02, 2013 5:53 pm 
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Its a 40 DCOE side draft. Just want to know what fuel pressure I should run for the turbo setup?

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Ripinitup
 Post subject: Re: Fuel pressure
PostPosted: Tue Sep 03, 2013 11:57 am 
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Location: Lancaster PA
I'm running 7 psi with electric pump now but from what I read it should be 4 psi. Anyone verify that?


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Aruba1
 Post subject: Re: Fuel pressure
PostPosted: Fri Sep 06, 2013 2:19 pm 
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Posts: 118
Location: Birmingham, AL
From my Porsche days, Aaron got it right, you will need something to raise your fuel pressure as you are increasing RPM. http://www.bellengineering.net/product_ ... cts_id=473 (Begi 2025)

However I am not sure if this is the best system for an aircooled engine, Worked great on my supercharged V8 Porsche pushing close to 500 hp, 180 mph was fun and still had another 20 mph left :)
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Ripinitup
 Post subject: Re: Fuel pressure
PostPosted: Sat Sep 07, 2013 5:14 am 
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Thanks Aruba1. That car sounds like it was sweet. From what I gather I don't need a boost controlled fuel system on my ac. Seems to run good with the current 7 psi fuel pressure so I'm going to leave it alone. I'm a big fan of.... If its not broke don't fix it lol. Thanks again for the help.


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Aruba1
 Post subject: Re: Fuel pressure
PostPosted: Sat Sep 07, 2013 10:04 pm 
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Location: Birmingham, AL
Car had a nice exhaust sound too. http://www.youtube.com/watch?v=ua4fvLlxQ2o

Have you considered installing an air/fuel gauge to monitor if you are running too lean/rich? Well, its a rail but still.
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