30psi should break 400hp

 

Just bought a green! only time will tell!

 

nice numbers for the 92 oct and 21 psi

 

well the cars if finally up and running, turned out to be a lifted head....Shouldve put in the headstuds while the cams were getting installed. Basically #4 piston was cracked at the top edge, and on top of that the two corner head bolts were loose. We sent the head and block out for honing and machening. The pistons, rings, and bearings were all changed in all cylinders, and we also went and changed the manifold to a Buschur and the stock 9 turbo to a green...Going back on the dyno soon and ill will post the new chart as soon as the motor is reasy to be ABUSED!!!!LOL

 

well the cars if finally up and running, turned out to be a lifted head....Shouldve put in the headstuds while the cams were getting installed. Basically #4 piston was cracked at the top edge, and on top of that the two corner head bolts were loose. We sent the head and block out for honing and machening. The pistons, rings, and bearings were all changed in all cylinders, and we also went and changed the manifold to a Buschur and the stock 9 turbo to a green...Going back on the dyno soon and ill will post the new chart as soon as the motor is ready to be ABUSED!!!!LOL

 

good looking numbers! keep up the good work!

 

A couple things.

First, Why are you running the AEM with such low mods/power. Its totally not needed and its complete overkill.

Second, your problem doesnt come from not having head studs. There is many people with more power then you and no studs. And GSC S1's DO NOT need spring/retainers. Dont know why your tuner would suggest that

Third, you say that the piston was cracked. That is a sure sign of detonation. Also, since your running the AEM, it has it own "knock control" that has to be setup by the tuner. Also, the AEM doesnt have as good of a knock protection then the stock ECU, IMHO.

My recommendations....get rid of the AEM and get a new tuner.

 

^ditto, and why such low psi? why did you have him make that power at a higher psi and want the same power but at a lower psi? im confused lol obviously was less safe..but okay numbers for 21psi non the less!

 

Well when we were on the dyno i forgot to mention that i had a boost spike that hit 30psi one run using the AMS MBC and the numbers were 398 hp and 378tq on the stock turbo, then the coolant started to push out of the resivior.....When we took the block apart, after my engine completely died on the street, the bottom and top corner head bolts were lose, and where the cracked top of the piston was, the head gasket looked seperated. Seemed as if coolant leaked into the cylinder, cooled off the edge of the piston and cracked it.....It was all my fault not investing in ARP studs and trusting the stock head bolts....

 

Dyno tuning this Saturday here are my updated mods-

AEM EMS
AEM 5 bar map sensor
AEM AIT sensor
GSC S1 cams
850cc clinics
Walbro 255
D2 drop springs
ETS 3.5" intercooler
Muse upper and lower I/C pipping
HKS titanium exhaust
3" piping not cat
Buschur ported exhaust manifold
ATP GT35r Turbo kit
ARP head studs
Cometic head gasket
Apexi boost soenoid
NGK Iridium 1 step colder plugs
Gates racing timing belt
Competition Clutch stage 4

 

Nice numbers, but seriously, a 30 PSI boost spike lifts the head, possible associated detonation takes out a piston, and you are going to continue to use the AMS MBC? I'm only new to turbos, but I would have thought it sensible to invest in a EVC to properly control the boost, especially after such an event.

 

for the power level on 21psi is very good!

 

My new setup.....tuned @ 24psi

AEM EMS
AEM 5 bar map sensor
AEM AIT sensor
GSC S1 cams
850cc clinics
Arp Headstuds
Walbro 255
D2 drop springs
ETS 3.5" intercooler
Muse upper and lower I/C pipping
HKS titanium exhaust
3" piping not cat
Buschur racing exhaust manifold
ATP GT35R Stealth turbo kit w/ ext dump
Apexi boost soenoid
Injen intake pipe
K&N cone filter
NGK Iridium 1 step colder plugs
Gates racing timing belt
Competition Clutch stage 4

 

What are the numbers, cant really read the graph that well.

 

good numbers