For all the high mileage guys

**silplu83** · 08-10-2008, 04:18 PM

I just dynoed my 99 Z28 M6 today and remember seeing alot of posts with people asking how the high mileage cars are holding up. So I figure I will post my numbers since my car is pretty much stock. It has 136K on it and when I got it the only mod is a SLP air lid. My clutch is worn so I think it cost me a couple but its still a good base line.

RWHP: 288
RWT : 308

So there ya go. I did two pulls and on the 2nd pull it was up 6 RWHP but there was a big line so I didn't get to do another to see if it went up anymore.

**9T8W66** · 08-10-2008, 04:40 PM

That's pretty good
I dynoed mine 2 yrs ago on a Dynapack. At 109K miles and on the original clutch she made 300 RWHP and 322 RWTQ. Only mods were an SLP lid and a 3" Flowmaster SOTL Catback.

**JoshieDoom** · 08-11-2008, 04:31 AM

Im getting ready to see what a 150xxx mile car does

Remind me to post after I get the dyno tune.

**camarojunky74** · 08-11-2008, 12:50 PM

my 99ss with 155k a4 slp lid and catback, slp diablo sport tuner made 322 328 on a mustang dyno.

**Evil_Foamy** · 08-30-2008, 10:29 AM

I took my 98Z28 with 118k miles on a Mustang dyno with a catback, and intake and made 318 RWHP.

**Boomer Sooner** · 08-31-2008, 02:29 PM

i would like to get mine dyno'd but i cant justify dropping a few hundred dollars to have it down. 99 z28 w/172k. k and n filter and flowmaster super 40 muffler, otherwise stock. im just curious because of the high miles.

**silplu83** · 08-31-2008, 04:08 PM

couple hundred? its only $80 here.

**Boomer Sooner** · 08-31-2008, 06:13 PM

Originally Posted by silplu83

couple hundred? its only $80 here.

im not sure what it would cost. ive just heard around here on the board that people have been saying a couple hundred is what to expect to pay. so i could be, and am more than likely wrong. but just going off what others have said.

**SVG210** · 08-31-2008, 08:00 PM

Originally Posted by Boomer Sooner

im not sure what it would cost. ive just heard around here on the board that people have been saying a couple hundred is what to expect to pay. so i could be, and am more than likely wrong. but just going off what others have said.

Youre probably thinking dynotunes those can run a couple hundred

dynoruns are cheaper around 60-90 bucks.

its typical that an older engine looses power due to all that compression leaking somewere.

**hoss 2000 z-28** · 09-02-2008, 05:29 AM

Not sure what everyone is paying but this is what I've got in Louisville (shop not a sponsor, name omitted).

3 Pulls - $50 w/afr reading - $75
Hourly - $100 per (one hour minimum)
Day - 7 hour block, 2 car maximum, - $550
Tuning - Call for pricing