slow turbo spool

system · September 13, 2006, 4:39am

im running a b16a all stock with an xs power turbo kit and am not hitting boost till like 4500 rpms and full boost at 5500 any reason why ? anything i can do to make if spool faster???

superduperhoots · September 13, 2006, 5:47am

Could you tell us what turbocharger you are using? Also state the inlet and outlet trim. It may be possible that the b16 is not big enough to spool the turbocharger where you would like it to.

-Hoots

system · September 14, 2006, 3:15am

.57t Compressor Wheel ,.50 A/r Compressor, 63 A/r Turbine

system · September 14, 2006, 3:40am

sorry i forgot to post the inlet and outlet 3" INLET DIAMETER 2" OUTLET

bert3734 · September 14, 2006, 12:50pm

Nitrous

loserpunkx182 · September 17, 2006, 4:06am

check ur ignition and timing

system · September 19, 2006, 4:04am

is it tunned??

jDMJeRk · September 19, 2006, 7:19am

you can lower vtec to help it spool quicker… I noticed large gains in the mid rang because of this

system · September 20, 2006, 3:34am

yeah its all tuned with an apexi vafc2 im rumming ten pounds of boost and the timing is good and so is the ignition maybe i need a smaller turbo?

jDMJeRk · September 20, 2006, 4:49am

i would lower your vtec engagement

Tchleung · September 20, 2006, 5:31am

Check for boost leaks first. Are you running an external wastegate? If so, what psi is the wastegate set at. And do you have a boost controller. A/F and timing plays a huge role in turbo spool up as well. But with the AFC, you can’t do anything but adjsut fuel and witht he AFC you’re running alot more timnig then you think.