Poor track results…please help me.
Thread Starter
Instructor
Joined: Apr 2006
Posts: 219
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From: Eureka MO
Originally Posted by shurite44
Come on fellows look at his sixty foot time. That is his problem not wx, and probably not his tires either. Usually no tread on tires does not have much effect on a preped track. I ran a 1.83 sixty in a basically stock C5 on bald runcraps.
You need to get your sixty down to 2.0x's. You can do that with a C6 in almost any wx condition. Weather and DA are not your problem, your launch is.
Good luck, read rangers hints on launching the C5 Z06.
Trapping 109, with a 2.00 sixty you will be running 12.8 - 12.9.
Work on the launch. M6's require practice to launch properly.
You need to get your sixty down to 2.0x's. You can do that with a C6 in almost any wx condition. Weather and DA are not your problem, your launch is.
Good luck, read rangers hints on launching the C5 Z06.
Trapping 109, with a 2.00 sixty you will be running 12.8 - 12.9.
Work on the launch. M6's require practice to launch properly.
Le Mans Master
Joined: Sep 2004
Posts: 7,027
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From: Shiloh Ohio
Originally Posted by MJU1983
Thanks, I know I was pretty unhappy with the 60'. I came from the AWD of 1.7XX 60's on stock tires.
Thread Starter
Instructor
Joined: Apr 2006
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From: Eureka MO
Originally Posted by shurite44
Without any TM and DR's 1.7's are possible with the C6. I had a C5 with just vararam, catback, and tune run in the high 1.7's. I was not the driver at the time but it ran it. Oh and by the way that was on stock runflats but it was a very cool, dry night.
Thanks, I will continue to practice...but the comment on the coolant temps/ heat soak/ intake air temps all makes sense too.
Regards,
-Mike
Le Mans Master
Joined: Sep 2004
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From: Shiloh Ohio
Originally Posted by MJU1983
You need to come to St Louis and try to pilot the C6!
Thanks, I will continue to practice...but the comment on the coolant temps/ heat soak/ intake air temps all makes sense too.
Regards,
-Mike
Thanks, I will continue to practice...but the comment on the coolant temps/ heat soak/ intake air temps all makes sense too.
Regards,
-Mike
Anyway I race auto's so driver skill is not a problem with me. Good luck, with practice you will be ringing out that six speed.
Le Mans Master
Joined: Feb 2006
Posts: 5,762
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From: Chandler Arizona
Originally Posted by cbrf4i1
DA takes into the weather condition and the track elevation. c6 could run as fast as 12.5 @ 115mph (some even reported as low as 12.2) and that same car could also run like yours did on a different track / weather condition. to give you an example last time i ran, it was 96 degrees, my DA was around 4600 feet that is with the track elevation at only 1250 ft.
You have to be a MADMAN to run with 96 degrees ambient temperature. You could cook hot dogs on your car's hood!
Le Mans Master
Joined: Feb 2006
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From: Chandler Arizona
Originally Posted by cbrf4i1
i think you might have just found your problem, if you were making your run at temp as high as 210 that could have been timing pull. my friend with stock stat dyno his car twice with only 10 minutes cool down, and on the 2nd pull lost 18hp or so. put in a cooler stat, allow enough cooling down time and try to make your run around 180 degrees or so, that should help. and turn tc/ah off too. that could have rub you some mph.
Race Director
Joined: May 2001
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From: Guelph, Ontario
Originally Posted by glennhl
You have to be a MADMAN to run with 96 degrees ambient temperature. You could cook hot dogs on your car's hood!
Drifting
Joined: Jul 2005
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From: az
Originally Posted by glennhl
You have to be a MADMAN to run with 96 degrees ambient temperature. You could cook hot dogs on your car's hood!
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Drifting
Joined: Jul 2005
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From: az
Originally Posted by bunk22
I ran a best of 8.9@81.9 (2.1) with cat-back in a bit worse weather conditions (2500' DA). That was with a slight cool down and coolant temps about 195. Any hotter and times would go down. I ran about 15 passes and never bettered that. It took a tune and TM removal to get beyond that. After I ran a best of 8.7@86.4 (2.1 & 2100' DA). I have yet to master Rangers techniques but working on it.
60ft - 2.154
330 - 5.634
1/8 - 8.429
mph - 89.24
1000-10.786
1/4-12.784
mpn-113.46
DA 1751ft
is it possible something else was going on like tc/ah wasn't turn off? bad track preparation?
here is a run when my car was all stock, with similar DA i think (didn't record the weather datat that day)
60ft - 2.317 bad !!!
330 - 5.982
1/8 - 8.859
mph - 87.17
your thought? thank you.
Last edited by cbrf4i1; Sep 20, 2006 at 07:06 PM.
Advanced
Joined: May 2005
Posts: 80
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From: St. Lucie West Florida
I have an 05 Z51 manual, only mod is GHL exhaust. I ran a best of 13.11 at 113 mph with a crappy 2.2 60 foot. I am having a hard time launching the car smoothly. It was 85 degrees with 90% humidity, Florida at sea level. I plan to try again when the weather cools off. Everybody is right, the launch is the key.
Team Owner
Joined: Jun 2001
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From: Houston, TX
Did I miss something? Do we even know if this is an automatic or six speed manual car?
The 210 is high, but not THAT high of a temp. I have not seen that big of a difference when mine was at that temp. Also, 60' times usually have a minimal (if any) effect on trap speed.
The 210 is high, but not THAT high of a temp. I have not seen that big of a difference when mine was at that temp. Also, 60' times usually have a minimal (if any) effect on trap speed.
Le Mans Master
Joined: Sep 2004
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From: Providence RI
No matter how you slice it and dice it, these C6s, on average, are just slow. My first time ever down a race track with a very slightly modded C5 6-sp gave me a poor 0-60ft. (2.3 sec.) but the car still ran a 12.9 at 112mph. I just think that these LS2 engines, are for the most part, overrated at 400hp.
Team Owner
Joined: Jun 2001
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From: Houston, TX
Originally Posted by Turbooo2u
No matter how you slice it and dice it. This is a slow time. My first time ever down a race track with a very slightly modded C5 6-sp gave me a poor 0-60ft. (2.3 sec.) but the car still ran a 12.9 at 112mph. I just think that these LS2 engines, are for the most part, overrated at 400hp.
I dissagree with you on the car being overrated. I've run two C6's at the track. My first had 900 miles on it, and I turned a 12.5 at 115. That would indicate that 400 horses are all accounted for, don't you think? What other 400 hp car runs those numbers?
Drifting
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From: az
Originally Posted by jschindler
My first had 900 miles on it, and I turned a 12.5 at 115. That would indicate that 400 horses are all accounted for, don't you think? What other 400 hp car runs those numbers?
400hp + 3450ish pound (with driver of course) + sea level + good weather + no timing retard / good iat / good coolant temp + good driver + good track = 115ish mph to me....nice run jschindler.
Team Owner
Joined: Jun 2001
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From: Houston, TX
Originally Posted by cbrf4i1
400hp + 3450ish pound (with driver of course) + sea level + good weather + no timing retard / good iat / good coolant temp + good driver + good track = 115ish mph to me....nice run jschindler.
Le Mans Master
Joined: Sep 2004
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From: Providence RI
Originally Posted by jschindler
If its a manual car, then I agree that it is slow. If an automatic, then it's really not.
I dissagree with you on the car being overrated. I've run two C6's at the track. My first had 900 miles on it, and I turned a 12.5 at 115. That would indicate that 400 horses are all accounted for, don't you think? What other 400 hp car runs those numbers?
I dissagree with you on the car being overrated. I've run two C6's at the track. My first had 900 miles on it, and I turned a 12.5 at 115. That would indicate that 400 horses are all accounted for, don't you think? What other 400 hp car runs those numbers?
Drifting
Joined: Jul 2005
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From: az
Originally Posted by Turbooo2u
As I said in my post "for the most part", meaning on average. Your times are the exception to the rule.
Originally Posted by cbrf4i1
400hp + 3450ish pound (with driver of course) + sea level + good weather + no timing retard / good iat / good coolant temp + good driver + good track = 115ish mph.
Le Mans Master
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From: Monroe Township New Jersey
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Originally Posted by MJU1983
It is a manual car, now I am getting worried! lol
Practice, practice & more practice. You are used to your AWD drive car and now you have a Corvette. With a little more seat time your times will improve.
Good luck