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| Re: fuel problems with turbo its leaning out couple of questions |
Subject: Re: fuel problems with turbo its leaning out couple of questions
by affordableperformance on 2009/10/17 8:59:10
Are you running the 1:1 blowthrough malpassi, there are 3 types just check its the correct one mate. Also it wont work if the fuel in/out are around the wrong way on the reg. Return line needs to be free from restrictions, i tend to use 10mm. With the carby malpassi reg you should be able to set base fuel pressure to around 5psi. Check with your gauge this rises to around 12psi (base5 + 7 boost) under full boost. Check the float level, try raising it alittle. Make sure the needle and seat are ok, not sticking. Most people drill them out to 2.5mm anyway to ensure better flow as the bowls arnt exactly huge. With the lid off carby and fuel line/pump on and working check needle and seat seals up. Also how lean was it getting what was the AFR? Hope that helps a little. Ill be going a holley 350 on my turbo a12 always another option. Cheers
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