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Thread: Pro-touring 72 Camaro SS
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01-05-2020 #241Registered User
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- Oct 2016
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I never had any leak issues, my problem was that before fuel rails I did not have a Y fitting to split the fuel line and give a relatively same amount of fuel and same fuel pressure in driver side and passenger side banks.
Because the fuel line began with cyl 7, 5, 3, 1 then 2 4 6 and 8 in serie, during accélération I had the driver side bank almost 2 to 2.5 point AFR richer than the passenger side bank, and fortunatly the passenger side bank was allways almost at target afr.
but I did not have any problems like that with the smaller injectors and only one in tank fuel pump.
That's why I hope the parallel fuel line setup will solve all issues. A crazy thing would be to split the fuel line in 4 before feeding the injectors then go to the FPR to be sure to have at least equal pressure on all injectors or having injectors with a build-in regulator inside their body.
finally it seems to work, not drive yet but idle is better, throttle response is better with the 2 AFR very close to target afr, so lesson learned when you have big injectors and more than 1 fuel pump, go to a parallel fuel line setup !
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01-06-2020 #242Registered User- Join Date
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01-12-2020 #243Registered User- Join Date
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01-17-2020 #244Registered User- Join Date
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finally decided to go to a bit more horespower, I don't have a lot of things to do and not very expensive to reach 1200hp, only 4 things to change
2 x walbro 535lph internal fuel pumps that are their biggest fuel pumps + 1 one way check valve.
1 x new pressure plate from ACT, I did not think 1000hp was so "easy" to reach so I bought the T2S-G03 kit from ACT that is rated at 986ft.lbs but with 1200hp and probably over 1000ft.lbs ACT recommend to change the pressure plate only from their T3S-G03 kit and keep the solid street discs that will upgrade the clutch kit to be rated at 1169ft.lbs, I don't want racing discs, I've made the mistake to put racing discs with my last clutch and it was horrible on street.
1 x 8an hose for the fuel return line
and 1 set of NGK BKR8EIX iridium spark plugs. I have BKR6EIX for the moment and they work very well.
01-20-2020 #245Registered User- Join Date
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01-22-2020 #246Registered User- Join Date
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01-22-2020 #247