Getting my car dyno'ed for the first time
03-24-2006, 02:54 PM
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Getting my car dyno'ed for the first time What should I expect to see? Bone stock 2002 WS6 Trans Am. Well, nearly bone stock, I took the baffles out of the hood and added SLP SFCs. It only has about 6200 miles on it, 4000 of them were quite babied (waiting for my SFCs - I'm paranoid about chassis flex lol), and the rest have been semi-babied (no drag racing, or racing of any kind really, just some occasional backroad fun).
I'm going just to get a baseline before I start adding things. That way down the road I don't look back and wonder just exactly what the stuff I added did.
I'm going just to get a baseline before I start adding things. That way down the road I don't look back and wonder just exactly what the stuff I added did.
03-24-2006, 04:19 PM
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03-25-2006, 09:48 AM
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Originally Posted by Villain281H
I'd guess 285-295 rwhp for an automatic, 295-310 for a stick.
Mine never made the dyno before modding, but she puts out 312 rwhp now..
Mine never made the dyno before modding, but she puts out 312 rwhp now..
Thanks for the response.
I'm on my way in just a bit. Kinda nervous. lol 
03-25-2006, 11:32 AM
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Just got back.
I don't have a scanner so I can't post the sheet (yet - I'll have to work something out).
It ran 294hp/329tq on the first pull, and 300hp/332tq on the 2nd. Then they asked me if I wanted a 3rd power pull or a 1/4 mile run. I'm not a drag racer, but I was curious. So I said the 1/4, and they asked me how I wanted him to lauch it, baby it or rip it, I told them to not kill my car (lol), and it did 12.92@105.7745 with a 1.65 60' time, and a 1.16 reaction time (and he wasn't getting through the gears as efficiently as I've seen some people do it). They said it was that good only because it was strapped down and didn't spin, which I can see.
It was a Mustang Dyno. Do they tend to read high, or low? There is a weight listed, how did it know since only the back was on the rollers? 3875 is a hell of a lot more than I was expecting. I don't know if that's with the dude in it or not. He must've weight near 200lbs, and it had a full tank, plus SLP SFCs and a bit of personal junk (that shouldn't have weighed more than 15lbs).
Oh yeah, it was about 46F with about 58% humidity. I'm not sure how that would sway things, but I'm sure it's pertinent info. lol My area is about 100' to 200' ASL.
I don't have a scanner so I can't post the sheet (yet - I'll have to work something out).
It ran 294hp/329tq on the first pull, and 300hp/332tq on the 2nd. Then they asked me if I wanted a 3rd power pull or a 1/4 mile run. I'm not a drag racer, but I was curious. So I said the 1/4, and they asked me how I wanted him to lauch it, baby it or rip it, I told them to not kill my car (lol), and it did 12.92@105.7745 with a 1.65 60' time, and a 1.16 reaction time (and he wasn't getting through the gears as efficiently as I've seen some people do it). They said it was that good only because it was strapped down and didn't spin, which I can see.
It was a Mustang Dyno. Do they tend to read high, or low? There is a weight listed, how did it know since only the back was on the rollers? 3875 is a hell of a lot more than I was expecting. I don't know if that's with the dude in it or not. He must've weight near 200lbs, and it had a full tank, plus SLP SFCs and a bit of personal junk (that shouldn't have weighed more than 15lbs).
Oh yeah, it was about 46F with about 58% humidity. I'm not sure how that would sway things, but I'm sure it's pertinent info. lol
My area is about 100' to 200' ASL. 
