408/A4 update. 538rwhp=10.3s@128.5mph with 1.38 60fts
#1
408/A4 update. 538rwhp=10.3s@128.5mph with 1.38 60fts
I know alot of people think dyno numbers don't mean much or want to know what a HP number equates to in ET. I know there are a ton of variables, but we finally got the car to hook at the track and it ran a best ET of 10.39 coasting through the traps in the finals at 126mph with a 1.380 60ft. It trapped several 128.7s in the Texas heat as well.
It's an all motor car weighing in at a little over 3525#s in race trim. We drove it in and drove it out after swapping tires and capping the exhaust. We are very pleased that it all finally came together.
I hope this helps give some idea of what a given rwhp can calculate to when traction is possible at a given weight in an F-body.
See ya'll at the track!
It's an all motor car weighing in at a little over 3525#s in race trim. We drove it in and drove it out after swapping tires and capping the exhaust. We are very pleased that it all finally came together.
I hope this helps give some idea of what a given rwhp can calculate to when traction is possible at a given weight in an F-body.
See ya'll at the track!
#4
LS1 Tech Administrator
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Awesome James! Those are some bitchin ETs, especially considering the hot muggy weather. Congrats! Your ET and mph completely validate your dyno numbers.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
#5
Thanks guys! Yeah the air was hot and humid. It was at +2700 DA mid day and dropped to the +1980s later in the evening. I can't wait for the good Fall weather
I ran 6.57@103 in the 1/8th.
Now I need to find a way to drop some weight without sacrificing drivability and street safety. It's hard to do without spending some big $$. A MadMan manual rack would be a good option, lightweight brakes maybe and a LW bolt-on hood. Those sound like some good B-Day and Christmas presents for the little lady since it's her car huh?
I'm fortunate to have a good converter, tranny, rearend and tires that allow me to get the power to the ground. Thanks again for all your help Patrick!
I ran 6.57@103 in the 1/8th.
Now I need to find a way to drop some weight without sacrificing drivability and street safety. It's hard to do without spending some big $$. A MadMan manual rack would be a good option, lightweight brakes maybe and a LW bolt-on hood. Those sound like some good B-Day and Christmas presents for the little lady since it's her car huh?
I'm fortunate to have a good converter, tranny, rearend and tires that allow me to get the power to the ground. Thanks again for all your help Patrick!
#7
The converter is a 9.5" custom stall convetrer from (Circle D) a local shop here in Houston. It was built with the intention of locking it in the top of 2nd gear for 1/8 mile races and the top of 3rd for 1/4 mile races, but I just got the car to hook and I haven't have the opportunity get good test data yet. I did test it once in the top of 3rd and picked up 2 mph, but I also had been spinning slightly on each pass so although it did run a better ET and gain mph, I don't know exactly how much yet. I hope to find out soon though.
Looks like you have a very nice set up. Keep us updated.
Looks like you have a very nice set up. Keep us updated.
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#10
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Originally Posted by TXCAMSS
I know alot of people think dyno numbers don't mean much or want to know what a HP number equates to in ET. I know there are a ton of variables, but we finally got the car to hook at the track and it ran a best ET of 10.39 coasting through the traps in the finals at 126mph with a 1.380 60ft. It trapped several 128.7s in the Texas heat as well.
It's an all motor car weighing in at a little over 3525#s in race trim. We drove it in and drove it out after swapping tires and capping the exhaust. We are very pleased that it all finally came together.
I hope this helps give some idea of what a given rwhp can calculate to when traction is possible at a given weight in an F-body.
See ya'll at the track!
It's an all motor car weighing in at a little over 3525#s in race trim. We drove it in and drove it out after swapping tires and capping the exhaust. We are very pleased that it all finally came together.
I hope this helps give some idea of what a given rwhp can calculate to when traction is possible at a given weight in an F-body.
See ya'll at the track!
Texas Heat didnt even begin to describe hot freeking hot it was on saturday at the clash. I see you picking up 4-5 mph in some good weather!!! Im still sweating!
#17
I'm running 93 octane unleaded pump gas. I will add a gallon or two of unleaded 104 if I know I'm going to have to hot lap it, but that hasn't been the case yet. I'm running a range of timing from 26 to 29 on the upper rpms. No signs of KR yet and we did our primary testing on straigh 93 pump gas to see what our limits were and all is well. I guess you could say it's a sweet surprise since we have seen many strokers having trouble running any normal amount of timing.
Once we get finished running some of the local racing events, I'm going to drop a few degrees of timing and see what the effects are. The car is now very consistent so we'll get some good data then.
Thanks guys!
Once we get finished running some of the local racing events, I'm going to drop a few degrees of timing and see what the effects are. The car is now very consistent so we'll get some good data then.
Thanks guys!