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View Full Version : Got boost


plantto
04-10-2008, 12:11 AM
Ok I have a 1991 740 turbo with a 94 b230ft I have fred's chips, browntops, 3" 960 AMM and supporting air intake pipe and filter, 3" turbo to just before the axle which leads to a 3" cutout then 2.5" inch after after the cutout, and a 15g right now set at 16psi, but still a stock intercooler for now. Right where it sits its pretty dang fast, but I am just wondering what others with a similar set up are running for boost. Also has anyone here dyno'd with a simliar setup if so what kind of figures did you get. I am going to the track on the 26th and want to know what I should be running I will be buying some high octane fuel there also just incase.

gear whine
04-10-2008, 08:08 AM
do you have a wideband/afr guage?

as long as your mixture is in the correct place on boost(i think like high 11s low 12s is best) or lower than turn up that there boost!

linuxman51
04-10-2008, 08:17 AM
high octane? you'll want to turn the boost up til something breaks. with that tiny turbo you oughta be able to put the car off in the 13's if you can get it to hook.

plantto
04-10-2008, 11:37 AM
right now I use nothing but 91-92 or better and at the strip I am going to buy some 100+ octane you think 20-22 psi is too much for that turbo for the drag strip.