ahmad0658

I have a doubt that I am having boost leak on my car. I am running AEM meth/water kit and spraying only water at the moment waiting to adjust my tune. I could notice that the kit light (that indicate spraying) is not stable and is not like when i installed it. The light flash for spraying then cut and then the light flash for spraying again.

I run with Bruabus pulley (168mm that would be if i am not wrong). According to my latest dyno readings my boost is as follows through the range of 2200 - 6250 rpm:

Min: 64.6 Kpa (9.37 PSI)
Max: 79.8 Kpa (11.57 PSI)
Avg: 72.9 Kpa (10.57 PSI)


I noticed that the pressure went from steady to low as 9.37 when started the run till reaching 3600 rpm, then the pressure start to pick up. I also noticed that during the run when reaching 5000 rpm, the pressure dropped a little bit.

Is that a sign of pressure (boost) leak? If so, where are the common places for pressure leak?

ahmad0658

No one

shardul

iTrader: (1)

this is caused because of the blow off / diverter valve opening up to bleed some boost. You need to check with your tuner to see if the diverter is closed shut when the TPS is 100% aka WOT

adianaty

It could be belt slip too if it's happening at high rpm. If it's consistent loss gear to gear at the rpm range it's probably slip. If it's not check with your tuner since Shardul would right since the ECM is taking the boost out. Also make sure that the rubber boots that feed the surge tanks are not loose.