Dyno #s
Thread Starter
Late Model Domestics
Joined: Oct 2007
Posts: 1,548
Likes: 46
From: Virginia Beach VA
Dyno #s
Bought this car with no history other than carfax. It has ARH headers, x-pipe, ti exhaust, and blackwing cold air. I t had a high idle. Car had nitous and probably a cam that was taken out, unsure thou. Well here it is first time looking at a dyno sheet so inputs are welcome. 2003 Z06!
Le Mans Master
Joined: Mar 2005
Posts: 5,811
Likes: 31
From: Minnetonka MN
St. Jude Donor '06
that drop off at 78 and 88mph would worry me...check the tuning.
For a Z that has those mods, you should be up in the 370s even. stock, a Z should do around 350rwhp. so you got some tuning ahead of ya...
Aj
For a Z that has those mods, you should be up in the 370s even. stock, a Z should do around 350rwhp. so you got some tuning ahead of ya...
Aj
Drifting
Joined: Apr 2008
Posts: 1,316
Likes: 2
From: St. Louis Mo
Thread Starter
Late Model Domestics
Joined: Oct 2007
Posts: 1,548
Likes: 46
From: Virginia Beach VA
Driveability
It runs very smooth sometimes in 4th it feels like there is clutch slippage but i didnt know what the dips where? So i should have it retuned right?
Le Mans Master
Joined: Mar 2005
Posts: 5,811
Likes: 31
From: Minnetonka MN
St. Jude Donor '06
any smart tuner would know something is wrong with the car. OR, now that you say the clutch has some issues in 4th, i dunno, that could be the drop off we are seeing at 78/88. once it drops, the car needs to make up that power again and thats prolly why the numbers are not so high. the tuning could be fine.
You did not show us the air to fuel ratio. Get that and let us know. should be about 13.1 across the chart.
You did not show us the air to fuel ratio. Get that and let us know. should be about 13.1 across the chart.
Thread Starter
Late Model Domestics
Joined: Oct 2007
Posts: 1,548
Likes: 46
From: Virginia Beach VA
WTF Over?
Car was tuned by ED a supporting tuner and former owner of the hp factory, he now works as the lead tuner at Virginia Speed. When i picked up the car their printer was broken so i got the results on a thumb drive thats when i posted the results. Can anyone give me some suggestions on what hose blips could be or mean?? Also no fuel ratio or torque #'s!
Last edited by mariofromnewyork; Apr 17, 2009 at 07:22 PM. Reason: Blips on Dyno's
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
Thanks for everyone's concern. The dips are where the tach signal was lost momentarily. It's not a problem with the car or the tune, it's a tach pickup issue. Sometimes there's some RFI goin on that the tach doesn't like. If the graph were printed in RPM instead of MPH there would be gaps instead of dips. Doesn't mean the car turned off.
As for the power it makes, it used to be a cammed car. So, it could be ridden hard and put away wet. It could have too short of pushrods in it, as the valve train was/is very noisy.
As for the power it makes, it used to be a cammed car. So, it could be ridden hard and put away wet. It could have too short of pushrods in it, as the valve train was/is very noisy.
Advanced
Joined: May 2009
Posts: 66
Likes: 0
From: Hopefully a quiet one Of Awareness
Car was tuned by ED a supporting tuner and former owner of the hp factory, he now works as the lead tuner at Virginia Speed. When i picked up the car their printer was broken so i got the results on a thumb drive thats when i posted the results. Can anyone give me some suggestions on what hose blips could be or mean?? Also no fuel ratio or torque #'s!
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