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i'm basing that on my previous setups, where Jim Wolf Technology's ECU had their fuel maps based on 4 bars, where injector's the stock fuel pressure was about 3 bars. People including me have run like this for several years without failure. I have also tuned with SAFC's and Adjustable FPR and...

I think 25% more than stock fuel pressure is the most you can go without messing with the spray pattern.

bumping an old thread... What if you raised the fuel pressure to say about 4 bars on the 370cc's, won't that help with the combustion also since you are now getting a more finer mist of fuel? I wonder how much whp you can squeeze by doing that.

I just purchased a 1993 SC300 with the following mods... -1jzgte swap -ebay T67 -ebay exhaust manifold -safc2 -3.25" downpipe -stock catback exhaust I purchased the car running rich afr was about 9.5 during cruising. come to find out the safc was wired wrong. now the afr is about...