[Z06] What's with these numbers??
Thread Starter
Racer
Joined: Jun 2000
Posts: 396
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From: Austin, TX USA
What's with these numbers??
Ok, had my 2002 Z dyno'd the other day at MTI before a C1 cam install. With TPIS headers and MTI Ram air it did 360/350 corrected. Then with the cam, off road x pipe, pulley and PCM reprogram it did 385/380. It feels really fast, works great and sounds awesome, but I think my numbers are pretty low compared to most I see here.Btw, stock with 700 miles it did 347/33?. Do I have a bad one or what?? MTI did another 2002 Z and it did 395 with the same mods as mine. It just seems like I am 10 low at every stage of mods including stock. MTi says a/f ratio is good and it's not running rich. Is there anything I can do??
Dale.
Dale.
Drifting
Joined: Oct 1999
Posts: 1,272
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From: Gaithersburg MD
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Re: What's with these numbers?? (MillenniumVette)
Doesn't sound too bad.
Mine dyno'ed at 336 RWHP SAE Corrected with 680 miles bone stock.
Some dyno's give higher numbers. See the numbers in my sig on my last Vette. Dynojets seem to give the lowest numbers.
BTW, my crappy 336 Rwhp pushed the car to a 12.27 ET in 1/4 mile.
Mine dyno'ed at 336 RWHP SAE Corrected with 680 miles bone stock.
Some dyno's give higher numbers. See the numbers in my sig on my last Vette. Dynojets seem to give the lowest numbers.
BTW, my crappy 336 Rwhp pushed the car to a 12.27 ET in 1/4 mile.
Safety Car
Joined: Dec 2000
Posts: 4,798
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From: Norman Oklahoma
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St. Jude Contributor
Re: What's with these numbers?? (Steve Row)
This is a stock '02 with a K&N filter.
http://members.aol.com/FriskyZ06/Dyno367hp1.jpg
Maybe he got lucky. :smash:
http://members.aol.com/FriskyZ06/Dyno367hp1.jpg
Maybe he got lucky. :smash:
Melting Slicks
Joined: Feb 2001
Posts: 2,137
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From: Oklahoma City OK
Cruise-In III Veteran
Re: What's with these numbers??
How many miles do you have on your 02? When I dynoed mine at 1600 miles, I only had 337hp "stock". When I dynoed again at 13,000 miles it jumped to 367rwhp. Some people say that the Z06s get better numbers after they get 10,000 on them. My car might very well prove that theory.
Ten horsepower is a very small percentage when you are in the 350/400-rear wheel horsepower range. There are many variables that can affect the dyno numbers by that small of an amount.
[Modified by FRISKY, 9:20 AM 2/19/2002]
Ten horsepower is a very small percentage when you are in the 350/400-rear wheel horsepower range. There are many variables that can affect the dyno numbers by that small of an amount.
[Modified by FRISKY, 9:20 AM 2/19/2002]
Thread Starter
Racer
Joined: Jun 2000
Posts: 396
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From: Austin, TX USA
Re: What's with these numbers?? (VettTheRipper)
Thanks. It made +35 ft/lbs more at 3200 rpm (cam, pulley etc VS headers and ram air intake). I thought I might loose some low end power with the big cam, but it makes more power everywhere from 2K on up. Wish I could post the graph. If anyone can post it I can fax it to you.
Thanks,
Dale.
Thanks,
Dale.
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Re: What's with these numbers?? (FRISKY)
When I dynoed mine at 1600 miles, I only had 337hp "stock". When I dynoed again at 13,000 miles it jumped to 367rwhp.
You have to take these numbers with a grain of salt and expect a variation of ten horsepower (about three percent) to be normal.
A nearly ten percent variation indicates either an engine problem, a testing error or a test equipment problem. The first thing to look at is whether the data is "corrected" to the same conditons. There are at least a couple of different "SAE standard conditions" that can be used.
Duke
Thread Starter
Racer
Joined: Jun 2000
Posts: 396
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From: Austin, TX USA
Re: What's with these numbers?? (VettTheRipper)
Ok, well I spent some time onthe "other" forum this morning. If Haltech is making 385 RWHP with a few bolt ons, then I want more!!! Is there anything he could do for me? Bigger injectors etc..?
Thanks,
Dale.
Thanks,
Dale.
Melting Slicks
Joined: Mar 2001
Posts: 2,809
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From: Frisco TX
Re: What's with these numbers?? (MillenniumVette)
bparker,
Hey I was looking at your dyno sheet. What changed between run 2 and run 3? You picked up like 10 hp and tq...
Hey I was looking at your dyno sheet. What changed between run 2 and run 3? You picked up like 10 hp and tq...
Le Mans Master
Joined: Oct 1999
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From: Junction City, Kentucky
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Re: What's with these numbers?? (bparker)
Don't worry about the Dyno numbers. Take it to the track and see what Your times look like.
Thread Starter
Racer
Joined: Jun 2000
Posts: 396
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From: Austin, TX USA
Re: What's with these numbers?? (KY 99 C5)
Yes I am planning to do that eventually. I am not sure how long the stock clutch will last under the new found power though. I guess by admiting that as a concern I am saying that the car feels strong and it does. I know I am getting caught up on the numbers, but I can't help it.....:(
