Is anybody proficient in tuning A/F ratios? I'm running 8psi (but would like to turn it up to 10psi) on a y8 with 310 cc injectors and 255lph walboro pump. Ive got the turbo xs fuel and boost computer. Its running lean in full throttle and the knock light keeps coming on after about 4000rpms. It needs to be tuned badly, but the dyno is booked up for a few weeks and i was hoping to get this done before the nashville meet. thanks

 

anyone:?

 

So you want to tune it on what kind of computer?

 

the turbo xs dtec it easy to use and tune, i just dont know what to set it at

 

Never heard of it... guessing its an FMU style? Without a wideband, no one will be able to tune your A/F properly for you.

You have many of options..... but stop boosting it until you fix your lean condition.

On my Y8, my 450's are maxed out at 15 psi. You'd prolly be pushing it with the 310's at 10 psi, specialy if it is an fmu. Buy some 450's, and chip your ecu, to obd I if necessary, and find someone local with a wideband. Getting a decent basemap is a piece of cake.