Track results, thoughts.
06-05-2019, 06:33 AM
#22
TECH Veteran
Whats the details on the car? Please post cause I cant see sigs either.
06-05-2019, 06:38 AM
#23
TECH Junkie
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98 Z28 A4, 2003 LS1 383 , Scat forged crank, Eagle Rods, -15cc Wiseco Pistons, 243 heads done by Mallet Cars with 67cc chambers, Comp pushrods, Titanium valves, Brute Speed Blower cam, Texas Speed 1 7/8 headers, TSP True Duals, Fast 90/90, Performabuilt LVL 2 tranny with 3500 stall, Racetronix fuel pump and hotwire kit, 60lb injectors, Moser 9 inch with 370 gear. BMR torque arm, UMI panhard bar, UMI lower control arms, UMI weld-on SFC.
06-05-2019, 07:00 AM
#24
TECH Veteran
Copy and paste from sig
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98 Z28 A4, 2003 LS1 383 , Scat forged crank, Eagle Rods, -15cc Wiseco Pistons, 243 heads done by Mallet Cars with 67cc chambers, Comp pushrods, Titanium valves, Brute Speed Blower cam, Texas Speed 1 7/8 headers, TSP True Duals, Fast 90/90, Performabuilt LVL 2 tranny with 3500 stall, Racetronix fuel pump and hotwire kit, 60lb injectors, Moser 9 inch with 370 gear. BMR torque arm, UMI panhard bar, UMI lower control arms, UMI weld-on SFC.
__________________
98 Z28 A4, 2003 LS1 383 , Scat forged crank, Eagle Rods, -15cc Wiseco Pistons, 243 heads done by Mallet Cars with 67cc chambers, Comp pushrods, Titanium valves, Brute Speed Blower cam, Texas Speed 1 7/8 headers, TSP True Duals, Fast 90/90, Performabuilt LVL 2 tranny with 3500 stall, Racetronix fuel pump and hotwire kit, 60lb injectors, Moser 9 inch with 370 gear. BMR torque arm, UMI panhard bar, UMI lower control arms, UMI weld-on SFC.
Thanks.... i call tell by the pistons that the compression ratio is hurting the performance naturally aspirated and a 3500 stall is also hurting the performance of the car. A 3500 stall is good for a bolt on car not no cammed stroker.
06-05-2019, 07:35 PM
#25
Not sure if this helps any but It does show a car performing like you would want to see.
N2
06-06-2019, 12:45 PM
#26
Car has the mods in my sig. Its set up for a blower which I haven't gotten yet. I had it built for that. Compression is 9.5:1. On the dyno when it was tuned it did 412 HP and 400 TQ. I was disappointed in that. Was hoping for closer to 450. But I know being an auto and having a 9 inch that will make a big difference on a dyno.
Finally took it to track last night and best it would do was 7.77 at 89mph in the 1/8. Also ran a 7.89 at 89mph. I was expecting it to do a lot better at the track. Were my expectations too high or is the car doing about what would be expected given the low compression and that its set up for a blower? TIA for any advice or views.
Finally took it to track last night and best it would do was 7.77 at 89mph in the 1/8. Also ran a 7.89 at 89mph. I was expecting it to do a lot better at the track. Were my expectations too high or is the car doing about what would be expected given the low compression and that its set up for a blower? TIA for any advice or views.
06-14-2019, 02:38 PM
#27
My heads, cam, intake 6 speed run 6.98 @101 in teh 1/8th with about 150-200 pounds of weight out of the car. Hvae not had it on a dyno yet but its got to be making around 470 wheel. I ran that at Shadyside dragway in Shelby, NC. Not sure if you have ever been to that track. The weather was nice and cool.
06-27-2019, 12:34 AM
#29
Trust me I agree. I'm not really sure what to do with it. I bought the engine used from a site sponsor. Then I had it gone through by a different site sponsor. I had the pistons changed and the cam changed. I'm very very reluctant to spend anymore money on it. Let alone another $10,000 to do the blower. The question is why is it so slow even with that compression? The tune was done by a well-known shop here in NC. And he use to do the tuning for one of the most well-known sponsors on this site. I do know I was shocked when it only made 412 on the dyno. But I mean it made what it made.
06-27-2019, 08:39 AM
#30
What were your expectations?The motor is 2 points low on compression and going through a stalled auto and a 9". You built it for boost, why are you caring about N/A numbers and times? Its not optimized for N/A. I bet on 10 PSI with a good blower it'll do 650whp on 93 octane.
06-27-2019, 10:55 AM
#31
What were your expectations?The motor is 2 points low on compression and going through a stalled auto and a 9". You built it for boost, why are you caring about N/A numbers and times? Its not optimized for N/A. I bet on 10 PSI with a good blower it'll do 650whp on 93 octane.
06-27-2019, 11:18 AM
#32
I was thinking more around 450. But numbers I'm not really concerned about. I look to track times/mph. I just want to make sure its running well as is before putting the blower/turbo on it. If something isn't right I want to get that ironed out first. I may just be overthinking it. Ha ha.
09-20-2020, 10:17 PM
#36
Car has the mods in my sig. Its set up for a blower which I haven't gotten yet. I had it built for that. Compression is 9.5:1. On the dyno when it was tuned it did 412 HP and 400 TQ. I was disappointed in that. Was hoping for closer to 450. But I know being an auto and having a 9 inch that will make a big difference on a dyno.
Finally took it to track last night and best it would do was 7.77 at 89mph in the 1/8. Also ran a 7.89 at 89mph. I was expecting it to do a lot better at the track. Were my expectations too high or is the car doing about what would be expected given the low compression and that its set up for a blower? TIA for any advice or views.
Finally took it to track last night and best it would do was 7.77 at 89mph in the 1/8. Also ran a 7.89 at 89mph. I was expecting it to do a lot better at the track. Were my expectations too high or is the car doing about what would be expected given the low compression and that its set up for a blower? TIA for any advice or views.
Here are my time slips 1-4.
