346ci D1SC power level, is this right?
Thread Starter
Teching In
Joined: Apr 2005
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346ci D1SC power level, is this right? Looking at an 01 Z06. Here is an insert from the ad.
"D1 set up with A custom bracket and a 8 rib belt set up.conected to a ATI pro engine dampner.It has 55lb injectors high impedence .It has a snow performance methenol {water injection} set up.wich alows you to run much cooler and safer tune up. It has had the larger intake pipe as shown in the picture.THIS IS NOT YOUR AVEREGE SUPERCHARGED CORVETTE.This car has dynoed 578.43 hp and 496.45 tq .The supercharger is still under the warranty . All of the pluming for the intercoolers were sent out to be chrome plated.It has a ss steel braided line coming from the passenger valve cover to a aluminum catch can with breather.The car has long tube headers and off road h pipe with o2 simulators and a B@B tri flow exhaust.It has the ligenfelter fuel pumps and B@M shifter."
The car is claimed to run an 11.60 @ 127mph which seems like a really low trap speed for a 580rwhp car. The car was ran on 6.5psi w/ a window switch activated 50/50 water/meth kit coming on at 4psi.
So my question is can a stock 346ci D1sc make 580rwhp @ 6.5lbs of boost w/ headers, exhaust, meth injection, etc..? Also, wouldn't a 580rwhp car trap a lot higher then 127mph on street tires?
Just curious if this is possible, I know he claims to have the sheet, and has agreed to let us re-dyno the car to make sure it makes the power he says it is making, but I just wanted some insight from some people that may know better then I.
Thanks,
Scott
"D1 set up with A custom bracket and a 8 rib belt set up.conected to a ATI pro engine dampner.It has 55lb injectors high impedence .It has a snow performance methenol {water injection} set up.wich alows you to run much cooler and safer tune up. It has had the larger intake pipe as shown in the picture.THIS IS NOT YOUR AVEREGE SUPERCHARGED CORVETTE.This car has dynoed 578.43 hp and 496.45 tq .The supercharger is still under the warranty . All of the pluming for the intercoolers were sent out to be chrome plated.It has a ss steel braided line coming from the passenger valve cover to a aluminum catch can with breather.The car has long tube headers and off road h pipe with o2 simulators and a B@B tri flow exhaust.It has the ligenfelter fuel pumps and B@M shifter."
The car is claimed to run an 11.60 @ 127mph which seems like a really low trap speed for a 580rwhp car. The car was ran on 6.5psi w/ a window switch activated 50/50 water/meth kit coming on at 4psi.
So my question is can a stock 346ci D1sc make 580rwhp @ 6.5lbs of boost w/ headers, exhaust, meth injection, etc..? Also, wouldn't a 580rwhp car trap a lot higher then 127mph on street tires?
Just curious if this is possible, I know he claims to have the sheet, and has agreed to let us re-dyno the car to make sure it makes the power he says it is making, but I just wanted some insight from some people that may know better then I.
Thanks,
Scott
Thread Starter
Teching In
Joined: Apr 2005
Posts: 21
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I am not worried about the ET, that can be fixed w/ more skill.....but the trap speeds are generally very indicative of the overall ability of the car. Outside of mis-shifting the car or getting off the throttle, the mph should reflect the power level....and 127mph seems low to me.
I was mostly concerned about the power output....I was not aware of the D1SC making that much power at 6.5lbs on a stock 346ci. The traps to me look like a 460-480whp setup....I just wanted to make sure on the potential power output of that blower w/ those mods at that boost level.
I was mostly concerned about the power output....I was not aware of the D1SC making that much power at 6.5lbs on a stock 346ci. The traps to me look like a 460-480whp setup....I just wanted to make sure on the potential power output of that blower w/ those mods at that boost level.
My car made 548rwhp with stock heads and 7.5-8psi on a Dynojet. Giving that a LS6 has better sets of heads with higher C/R I don't see why he wouldn't make that much power at 6.5-7psi. I agree that 578rwhp in a vette should put it in the 130mph range, but there are alot of reasons that could have made his car only trap 127mph. It could be a slipping clutch, major tire spinning, shifting too early, slipping belts, engine losing Compression, etc...
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On The Tree
Joined: Feb 2004
Posts: 105
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From: Portage, MI
My buddys TT Trans Am vert went 11.60@123 and dyno's at 560rwhp. Considering it had much more low-mid range torque to get it out of the hole and still only went 123 makes this Corvette seem reputable.
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Originally Posted by 93turboLT1
My buddys TT Trans Am vert went 11.60@123 and dyno's at 560rwhp. Considering it had much more low-mid range torque to get it out of the hole and still only went 123 makes this Corvette seem reputable.
Dyno numbers can be bullshit, so I wouldn't exactly look at the 578.43 hp and 496.45 tq as being proof. That doesn't mean this guy is lying, it's just that different types of dyno's will give you different numbers. The fact that he is willing to let you dyno the car sounds like he is being honest. You're right in thinking the trap speeds look low, I'd like to see what it dynos on a Mustang Chassis Dyno that has been recently calibrated. Bob
Last edited by Exotic Performance Plus; Apr 29, 2006 at 07:38 PM.
I'm always suspicious of any ad written with such poor spelling - if the guy that wrote it owns the car, then maybe an idiot drove & maintained the car, and would you want to buy such a hi-perf car used from an idiot?
If you just typed that quote in to show us, then it's a whole new ballgame.
Jim
If you just typed that quote in to show us, then it's a whole new ballgame.
Jim
