Just wondering if ther is a way to adjust boost at part throttle ? I put the 2.8 pulley on and it was a bear to tune for part throttle , WOT was pretty easy (even though it did need an extreme adjustment, even with the 42lb. injectors and IFR table adjusted) . It took me a good 3 hours of driving around and logging and altering the VE and maf table to dial in fuel trims under 3200 rpms . With the stock pulley , I saw about 5 psi at part throttle under 3k and now it sees around 10 psi under the same conditions which created a lean afr and took a lot of time and tuning today to get it running smooth . So I was wondering if there was a way to allow the bypass valve to open a bit earlier in these conditions so it is not so hard on the engine putting 10 psi to it at 2k at part throttle . Also , I should probably make another post about this , but , I found the table that changes the "boost bypass" at 6k and up , it is set to 200% up to 6k and then at 6k it goes to 100% which would be why these things go down to 12 psi at that level , so I tried to make it 200 % like the rest of the table but it would not allow me to do so . Now that I think about it , I may have just partially answered my first question by altering this table under 3k rpms ? Anyone with experience on either of these 2 things ???
Thanks in advance
Mike
trying to figure these cars out so I can tune them efficiently ...
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Originally Posted by mike72678
