Ok i know this is a honda forum but i post here alot even when i had my integra but this forum still answers alot of **** for me so here i go.

my latest project is a 240 sx with the traditional sr20det

the problem im having is if i try to make boost (over 10 lbs) the car hits a wall. it wont rev wont boost wont do anything as if time was frozen. ive checked everything from MAF, TPS, Plugs, Coils, ECU, Walbro pump rewired on 30amp setup.

two things i havent been able to rule out is ot much fuel psi from the added flow of the hyped up walbro and the internal wastegate arm.

any ideas guys?

 

bump

could running to much fuel psi at wot cause me to hit a dead spot and not accelerate or make power?

 

i dont know about nissans but do you have any kind of boost cut?

 

Also don't know much about nissan but i once owned a POS TURBO Talon AWD, the damn thing had such a small turbo it would feel about like what your describing, it ran great on factory boost...which is just not acceptable by any standard(except in the 70+ age group). i had to up the boost by disconnecting and plugging up the wastegate to spool it to death and it felt very nmuch like your describing. i could not rev, boost or pull past 3500rpm no matter what i did! this is on an automatic talon and i figured the turbo was WAY out of it's efficiency at the higher boostt level and i felt like i was hitting a wall like your describing. what size turbo you got on their? sorry if this was off topic and mis-spelled. i'm at work and don't feel like re-reading/spell checking.

Brain

 

well found out im losing fuel psi as it was sky diving at WOT. so i assume the fpr took a **** on me?