View Full Version : how much power
1toofastlt1
06-20-2009, 02:41 PM
have a 97 lt1 with a v1 vortech supercharger t-trim running 6lbs. stock engine. and all the mods in my sig. Any guess on what kind of hp i can expect?
Z28pr0jekt
06-20-2009, 02:43 PM
380-400ish depending on the tune
1toofastlt1
06-20-2009, 03:00 PM
ok thats not bad. is that WHP or FWHP?
Z28pr0jekt
06-20-2009, 03:10 PM
I would imagine whp. Typically (just as a general measure) 1psi is good for anywhere from 15-30whp, usually the higher number indicating a very efficient setup.
According to your sig you don't even have headers (longtubes would help immensely on a supercharged setup)
So basically you have an exhaust and a thermostat.
So NA you are somewhere around 280-290ish so figure 6 psi = 90-180whp. I highly doubt it would be the 180whp but somewhere closer to the 90whp or a bit more is definitely possible
1toofastlt1
06-20-2009, 03:11 PM
ok cool. yeah no header. i would love to get some though.
Z28pr0jekt
06-20-2009, 03:17 PM
I may have calculated a bit high for the NA numbers but I was basing it on the trap speed in your sig.
When I trapped 100.7 I was putting down around 260whp
That was before I put headers and rockers and shit on, but I was also on 273s so I bogged off the line.
1toofastlt1
06-20-2009, 03:37 PM
4.10 made a huge difference off the line
RealQuick
07-28-2009, 07:51 AM
I think 380-400rwhp is a good guess.
BLOWNDFIZ
07-28-2009, 07:59 AM
My car, stock with S-Trim @ 6psi made 350/350 @ 5250 RPM. Don't know why they stopped the pull that early but they did. So the 380 guess is probably pretty darn close.
CALL911
07-31-2009, 02:57 PM
I think it will do somewhere in the 335-375 RWHP range on a dynojet. Mustang dyno would show less.
Be ready for the rebuild running boost on the stock LT1 :hang:
boosted95z
07-31-2009, 03:12 PM
I think it will do somewhere in the 335-375 RWHP range on a dynojet. Mustang dyno would show less.
Be ready for the rebuild running boost on the stock LT1 :hang:
QFT
With full exhaust and 8 psi I made 406/410. 25k miles and dynotuned by Bryan Herter from PCMforless. With 6 psi I would expect maybe 380 on the high side.
CALL911
08-01-2009, 09:45 AM
Being tuned by the OP, and not saying he doesn't know what he is doing, but even if he could tune it just as good as Brian from PCM's for less, its still a stock high CR, non-forged internal engine running boost. He hasn't mentioned, but I can only hope he has at least upgraded to larger fuel injectors, larger fuel pump, aftermarket ignition, and some form of meth injection and/or an intercooler to keep his IAT's down to a safe level.
I don't want to get on a rant here, but you are playing with fire when you boost any LTX, (or LSX for that matter) with non-forged internals and a high CR. They just are not meant to handle it. You simply are rolling the dice. It might last 25,000 miles, but then again, it might not make it 2500 miles before your next oil change before you will be looking for a new motor.
1toofastlt1
08-21-2009, 06:16 PM
Being tuned by the OP, and not saying he doesn't know what he is doing, but even if he could tune it just as good as Brian from PCM's for less, its still a stock high CR, non-forged internal engine running boost. He hasn't mentioned, but I can only hope he has at least upgraded to larger fuel injectors, larger fuel pump, aftermarket ignition, and some form of meth injection and/or an intercooler to keep his IAT's down to a safe level.
I don't want to get on a rant here, but you are playing with fire when you boost any LTX, (or LSX for that matter) with non-forged internals and a high CR. They just are not meant to handle it. You simply are rolling the dice. It might last 25,000 miles, but then again, it might not make it 2500 miles before your next oil change before you will be looking for a new motor.
Im running a 255 fuel pump with a FMU. my afr are around 11.9 at wot. but your right i dont know what im doing with the tune. I just always do everything myself. I read up on as much info i could find on the internet and just did my best.
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