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Not sure if this would be better here or in the general C6z forum. I have a basic heads/cam package with headers and exhaust. I put down 574rwhp. I was using my dragy and 60-130 it was 8.5 on a flat road. My friend said it was a little slow for the performance. I mean my shifting is fine. Am I about in line with where I should be performance wise or should I be quicker? Thanks!
I have a H/C LS3 M6 and my 60-130 ranges from 7.8-8.0 so I would say it does seem a little slow. My car makes 500whp. I would think yours should be around 6.5 or so.
Not sure if this would be better here or in the general C6z forum. I have a basic heads/cam package with headers and exhaust. I put down 574rwhp. I was using my dragy and 60-130 it was 8.5 on a flat road. My friend said it was a little slow for the performance. I mean my shifting is fine. Am I about in line with where I should be performance wise or should I be quicker? Thanks!
Don't know if this will help you out, but here you go:
Are you already into the throttle or are you just flogging it at 55 MPH and trying to get a good time?
From what I understand the best way to do it is to be in a full pull before the 60 MPH (fully rolling) and the DRAGY starts counting as soon as you hit 60 MPH and will stop at the 130 MPH and if you have the 100 -150 MPH set then keep on rolling to 150 MPH and record that too!
I own a DRAGY as well and I have tried it different ways and you should be doing a full pull before the 60 MPH or in a full pull leading up to the 60 MPH start of the recording, because many factors can come into play, example - perhaps you don't have traction at 60 MPH and you break them loose on the road you are running on (this is what was the problem on my C5 with 734 RWHP, no traction at 60 MPH when I would flog it, needed to be rolling)
Either way post up some more results after your runs -
Also check out the DRAGY 60-130 MPH section (if not already done so) and look for comparable vehicles to check yours against - your probably not far off as you think you are (and depending on the weather and fuel, you could of been pulling timing, try a cooler part of the day too)
Are you already into the throttle or are you just flogging it at 55 MPH and trying to get a good time?
From what I understand the best way to do it is to be in a full pull before the 60 MPH (fully rolling) and the DRAGY starts counting as soon as you hit 60 MPH and will stop at the 130 MPH and if you have the 100 -150 MPH set then keep on rolling to 150 MPH and record that too!
I own a DRAGY as well and I have tried it different ways and you should be doing a full pull before the 60 MPH or in a full pull leading up to the 60 MPH start of the recording, because many factors can come into play, example - perhaps you don't have traction at 60 MPH and you break them loose on the road you are running on (this is what was the problem on my C5 with 734 RWHP, no traction at 60 MPH when I would flog it, needed to be rolling)
Either way post up some more results after your runs -
Also check out the DRAGY 60-130 MPH section (if not already done so) and look for comparable vehicles to check yours against - your probably not far off as you think you are (and depending on the weather and fuel, you could of been pulling timing, try a cooler part of the day too)
Thanks,Matt
I've done it a few different ways. Mostly I'll start at like 45 and hit it in 2nd. It is fairly humid here in the summer. As far as aero its just a stock c6z with a ZR1 rear spoiler
I'm going to try it on a cooler time of day and maybe go out with the thought of going for a time vs trying to do it on a random cruise when the car is already pretty hot.
Thanks for the heads up guys. Looks like I got some things I can do!
I've done it a few different ways. Mostly I'll start at like 45 and hit it in 2nd. It is fairly humid here in the summer. As far as aero its just a stock c6z with a ZR1 rear spoiler
Originally Posted by Josh M
Also just looking at the data
81 degrees outside temp
1047 ft elevation
DA 2894 ft
I'm going to try it on a cooler time of day and maybe go out with the thought of going for a time vs trying to do it on a random cruise when the car is already pretty hot.
Thanks for the heads up guys. Looks like I got some things I can do!
Yeah sounds like the "Humidity" might be stifling your runs some, keep us posted and be safe -
Take a look at some of the 60-130 runs on the Dragy Leaderboard part of the site (can do it right from your App) to get some compares off the CHEVROLET cars, a few Z06's that "Might" be comparable if you have similar mods and conditions - you can even go back a month or view History and check things out - if not already done so
I am looking forward to seeing your results as they will be better!
Yeah sounds like the "Humidity" might be stifling your runs some, keep us posted and be safe -
Take a look at some of the 60-130 runs on the Dragy Leaderboard part of the site (can do it right from your App) to get some compares off the CHEVROLET cars, a few Z06's that "Might" be comparable if you have similar mods and conditions - you can even go back a month or view History and check things out - if not already done so
I am looking forward to seeing your results as they will be better!
Thanks,Matt
Humidity is the only thing I can really think of for a few reasons. When looking back at the data there are no huge blips in the acceleration to indicate slow shifting and what started all this is my RS3 is also roughly 1 second behind where it should be as well........and there is no shifting there for me to mess up. Elevation in WI is not a factor whatsoever as its all flat and boring haha.
Humidity is the only thing I can really think of for a few reasons. When looking back at the data there are no huge blips in the acceleration to indicate slow shifting and what started all this is my RS3 is also roughly 1 second behind where it should be as well........and there is no shifting there for me to mess up. Elevation in WI is not a factor whatsoever as its all flat and boring haha.
Elevation is a big factor. It’s all about density altitude. A pull on a 2 degree slope at sea level is faster than a pull on a 0 degree slope at 5000 ft DA.
It’s roughly a 3% loss for every 1000 feet above sea level with a naturally aspirated engine. You’re down around 9% power compared to what it would make at 0 DA.
Elevation is a big factor. It’s all about density altitude. A pull on a 2 degree slope at sea level is faster than a pull on a 0 degree slope at 5000 ft DA.
It’s roughly a 3% loss for every 1000 feet above sea level with a naturally aspirated engine. You’re down around 9% power compared to what it would make at 0 DA.
Here’s an example
Thats good info. My DA is 1968, so I don't think its that big of a factor. I could be wrong though.
I think I discovered my main issue though. I'm an idiot lol. I turned off traction control but not active handling. Just today, same stretch, I turned it all off and got a 7.51 which I feel is more in line with where I should be. Not sure on my RS though because traction control was already turned off and I was still a second slow there too.
Thats good info. My DA is 1968, so I don't think its that big of a factor. I could be wrong though.
I think I discovered my main issue though. I'm an idiot lol. I turned off traction control but not active handling. Just today, same stretch, I turned it all off and got a 7.51 which I feel is more in line with where I should be. Not sure on my RS though because traction control was already turned off and I was still a second slow there too.
Here is my 84 C4 6.0 w/LS3 top end, 220/224 cam, boltons and TKO 600 faceplated 5 spd. Makes around 430whp and race weight is about 3100lbs.
DA was good at about 875ft.
Not sure if this would be better here or in the general C6z forum. I have a basic heads/cam package with headers and exhaust. I put down 574rwhp. I was using my dragy and 60-130 it was 8.5 on a flat road. My friend said it was a little slow for the performance. I mean my shifting is fine. Am I about in line with where I should be performance wise or should I be quicker? Thanks!
My C6Z makes 560whp / 540 tq on E85. My best 60-130 on Dragy is 8.2s, but typically it runs about 8.4-8.5s so about the same as yours.
I love the custom setups. Only thing I couldn't figure out was how to transfer the custom times to a new device. You can just upload the standard timeslips to your account but not the custom ones.
I like 40-80 or 30-70 and leave it in 2nd. Do some tuning tweaks and run the same direction on the same strip of road and see if the adjustments are hurting or helping.
06 base, m6, 171k miles. Vararam, self ported tb, stock intake manifold , PRC225 heads, texas speed bald eagle cam, hinson lt headers, catless 3” x pipe, slp loudmouth 2 exhaust, monster lt1s twin disc clutch, mt et ss 275/40/17 on c5z fronts. 440 on a mustang dyno (made 450 before heads on a dyno jet), bout half a tank of 93 and DA was around 800 or so
C6z 60-130
, PRC225 heads, texas speed bald eagle cam, hinson lt headers, catless 3” x pipe, slp loudmouth 2 exhaust, monster lt1s twin disc clutch, mt et ss 275/40/17 on c5z fronts. 440 on a mustang dyno (made 450 before heads on a dyno jet), bout half a tank of 93 and DA was around 800 or so
