Ok I have been running 8 psi on a regular basis and it seems to be fine...haven't found anything wrong everything looks good...all the gauges are reading fine....now the question is....can I up the boost to 10 or even 12 on stock internals and injectors without blowing rings or motor...I would like any advice....just let me know if 10 or 12 is cool without major damage or should I just hold off and wait till I get the internals....and if no one has went 12 psi on a regular basis then i wouldn't mind trying it...so please let me know....Thanx
Star Stage 2 turbo kit w/Greddy Type S BOV Turbonetics Manual Boost Controller SkunkWorks Cam Gears 5Zigen Cat back exhaust Cat. Bypass NGK spark plugs Nology Spark plug wires Full body kit 17" Konig Imagines Air/Fuel Gauge EGT gauge and other gauges....
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'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#8795, "RE: How much boost?" In response to Reply # 3
on a different note,what about the other way around.built internals and stock injectors(still can't control my 440's and 02 readings)w/ walbro and 12-1 fpr on 12 psi?safe or borderline?
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#8797, "RE: How much boost?" In response to Reply # 0
Thats what I wanted to know....so if I was to run 12psi without changing my pistons then there is a chance that they will blow? correct? What if i change the headgasket and get total seal piston rings and maybe bigger injectors....will that work fine or will the pistons still crack? are the pistons really that weak????
Star Stage 2 turbo kit w/Greddy Type S BOV Turbonetics Manual Boost Controller SkunkWorks Cam Gears 5Zigen Cat back exhaust Cat. Bypass NGK spark plugs Nology Spark plug wires Full body kit 17" Konig Imagines
#8798, "RE: How much boost?" In response to Reply # 5
Doesn't matter what kind of rings you use. Rings don't break under boost. Pistons do. The pistons are strong, sure, but brittle. They can take a lot of abuse, but not in the form of the sharp blow of sdetonation. The uneven loads and the shear shock will crack them. Consider 12PSI at 9.6:1 compression. Then consider it going off before it supposed to. That's a lot of force to have to resist.
_____________________________________________ -Dino Yancey Hello me, it's Me Again!
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#8799, "RE: How much boost?" In response to Reply # 6
"RE: How much boost?" on a different note,what about the other way around.built internals and stock injectors(still can't control my 440's and 02 readings)w/ walbro and 12-1 fpr on 12 psi?safe or borderline? hey aj, ummm i was told not to be running 12:1 fpr on 440s and that kind of boost...i switched to 4:1 w/recalibration disk ...dino?? http://geocities.com/shogunltw/ People that say "money is the root of all evil" dont have any. BR auto- star stage III @15psi & rising
#8800, "RE: How much boost?" In response to Reply # 7
I actually meant 12:1 and stock injectors w/ just a walbro w/ 12 psi.Dino,I thought Wyatt had 440's?Or did he run stock injectors w/ 12psi on a built block before he got em' on?
BTW,I do have 440's and a 4:1 disk but it won't idle right even @ -50 on the afc.Too busy to figure it out so I just put the old set up on.I just hate waht a waste my build up is turning in to.Esp after seeing that post on a dyno run on 15 psi w/ basically the same set up I already have.
Sucks living in "bum fuck egypt"...can't wait to move back to cali...
#8801, "RE: How much boost?" In response to Reply # 7
Joe A. ran 12psi for a year and never blew his motor. He used a thicker hg to lower compression plus a lot of know how on tuning. I forgot who claimed to have run 12psi consistently in Cali, but it was done with timing being retarded. These are the kind of things that would offset detonation at higher boost and very recommendable. If I were to REALLY want to try and run a consistent 12psi, I would start with an MSD DIS-2 and timing retarded about 4-6deg and larger injectors with an AFC. These are things that can help at any boost level anyway.
Oh, if you use 440cc you have ot use the 4:1 disc. The 12:1 will cause problems being ultra rich. With 550's you have to go 3:1.
MuRiX 97 Eclipse GS HRC Stage IV+ Sitting and collecting dust most of the time.. A.D.P. http://www.murix.com
#8802, "RE: How much boost?" In response to Reply # 7
shogun98,how's your car idle w/ the 440's?would you be kind enough to tell me what your afc setting is @ idle?are you blowing black smoke?I'm desperately trying to figure out what I did wrong.my car would just about die when i hit throttle w/ so much fuel dumping and I was going through 02's left n' right.
#8804, "RE: How much boost?" In response to Reply # 12
my car idles great now...i took off and put my stock injectors back on once becuz of crappy idle...tried a second time and again the same no idle and black smoke..come to find out thura (AVENGER) comes over and see that i had my vc1 safc & ecu wired wrong...he fixed it and it idles perfect.. my settings i got from eric c who was runnin 15psi on stck btm end just to get it started but is in no way tuned..the houston guys are all donating and we're about to get a datalogger to tune all of the 4 guys running 15psi and up. email me if u need .shogunltw@aol.com -joe http://geocities.com/shogunltw/ People that say "money is the root of all evil" dont have any. BR auto- star stage III 15psi & rising
#8807, "RE: How much boost?" In response to Reply # 13
shogun98rs,I tried to e-mail but maybe I can reach you better hear.I was curious what you found wrong w/ your wirings when you were having those problems being rich on idle,maybe I wired mine the same way.
