New times.
Thread Starter
12 Second Club
Joined: Aug 2007
Posts: 387
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From: North Versailles, PA
New times. I made it back to the track last night. Last time I went I had a shifting issue that I got fixed along with some other updates on my tune. Track prep was terrible so I spun every run. Even the slick cars were spinning pretty bad.
The best run of the night.
.0231---RT
1.7183---60 FT
4.9799---330 FT
7.7699---1/8 ET
87.43---1/8 MPH
10.2001---1000 ET
12.2492---1/4 ET
110.65---1/4 MPH
The best run of the night.
.0231---RT
1.7183---60 FT
4.9799---330 FT
7.7699---1/8 ET
87.43---1/8 MPH
10.2001---1000 ET
12.2492---1/4 ET
110.65---1/4 MPH
Thread Starter
12 Second Club
Joined: Aug 2007
Posts: 387
Likes: 0
From: North Versailles, PA
Thanks guys. I'm going back every week until I get in the 11's. Track prep 2 weeks ago was great and this last time was terrible. Hopefully this is a pattern and next week is good again. 2 weeks ago I was cutting a 1.6 60'.
Thread Starter
12 Second Club
Joined: Aug 2007
Posts: 387
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From: North Versailles, PA
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Congrats on the new best!
It does seem to be trapping low, IMO. How far are you twisting that motor? Do you have any weight reduction? I would also be willing to bet that TCI converter is slipping some. I know mine was... both times it was replaced/repaired by TCI.
I run the same cam in a 355 with stock heads, injectors, TB, TQ arm and LCA's. My best is in my sig. I expect to go .40/.50's with more suspension, good air and a better tune. I'm also running a mail order by Brain @ pcmforless.
It does seem to be trapping low, IMO. How far are you twisting that motor? Do you have any weight reduction? I would also be willing to bet that TCI converter is slipping some. I know mine was... both times it was replaced/repaired by TCI.
I run the same cam in a 355 with stock heads, injectors, TB, TQ arm and LCA's. My best is in my sig. I expect to go .40/.50's with more suspension, good air and a better tune. I'm also running a mail order by Brain @ pcmforless.
Thread Starter
12 Second Club
Joined: Aug 2007
Posts: 387
Likes: 0
From: North Versailles, PA
Congrats on the new best!
It does seem to be trapping low, IMO. How far are you twisting that motor? Do you have any weight reduction? I would also be willing to bet that TCI converter is slipping some. I know mine was... both times it was replaced/repaired by TCI.
I run the same cam in a 355 with stock heads, injectors, TB, TQ arm and LCA's. My best is in my sig. I expect to go .40/.50's with more suspension, good air and a better tune. I'm also running a mail order by Brain @ pcmforless.
It does seem to be trapping low, IMO. How far are you twisting that motor? Do you have any weight reduction? I would also be willing to bet that TCI converter is slipping some. I know mine was... both times it was replaced/repaired by TCI.
I run the same cam in a 355 with stock heads, injectors, TB, TQ arm and LCA's. My best is in my sig. I expect to go .40/.50's with more suspension, good air and a better tune. I'm also running a mail order by Brain @ pcmforless.
I believe it's shifting at 6700 or 6800. I have no weight reduction other than not having a spare tire. I don't believe in weight reduction unless it's a full blown drag car and I still daily drive mine.
The converter is my guess on the low trap speed but mph means nothing. Mph will change depending on weight, gear ratio, type and size of converter, traction, ect. I'm looking into other brand converters for when I build my spare tranny next year. 
http://www.dragtimes.com/da-density-...2010&time=7:50 PM
You can use this as a good estimate. At 7:50 the elevation was at 1650. Just input your info and that will give you an idea of what you should run in near perfect weather conditions at sea level.
You can use this as a good estimate. At 7:50 the elevation was at 1650. Just input your info and that will give you an idea of what you should run in near perfect weather conditions at sea level.
Thread Starter
12 Second Club
Joined: Aug 2007
Posts: 387
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From: North Versailles, PA
http://www.dragtimes.com/da-density-...2010&time=7:50 PM
You can use this as a good estimate. At 7:50 the elevation was at 1650. Just input your info and that will give you an idea of what you should run in near perfect weather conditions at sea level.
You can use this as a good estimate. At 7:50 the elevation was at 1650. Just input your info and that will give you an idea of what you should run in near perfect weather conditions at sea level.
It's saying I would have run a 12.1 @ 111. Not much better.
A heads/cam lt1 that hooks should be running mid-low 11's. You're running about what an average cam only stalled auto lt1 would run. So yeah you are definitely missing quite a bit power somewhere.
Thread Starter
12 Second Club
Joined: Aug 2007
Posts: 387
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From: North Versailles, PA
I was spinning a lot on my launches. Track prep was pretty bad. With that being said I feel I should be faster but there are also a lot of 383 cars on here that are running high 12's. I'm going to try a few more things and see where it all puts me. I'll be back at the track Thursday to see if anything works. Any ideas that may help are welcome.
I was spinning a lot on my launches. Track prep was pretty bad. With that being said I feel I should be faster but there are also a lot of 383 cars on here that are running high 12's. I'm going to try a few more things and see where it all puts me. I'll be back at the track Thursday to see if anything works. Any ideas that may help are welcome.
Thread Starter
12 Second Club
Joined: Aug 2007
Posts: 387
Likes: 0
From: North Versailles, PA
My car isn't going to see the dyno until next year. I've spent too much this year already. I don't know about 50 - 75 hp missing. That almost made me fall out of my chair laughing. Even if my tune was off pretty bad the most I can see gaining out of a dyno tune is 20 - 25 hp.
Last edited by Slowmaro95Z28; Sep 12, 2010 at 01:34 AM.
Thread Starter
12 Second Club
Joined: Aug 2007
Posts: 387
Likes: 0
From: North Versailles, PA
They were ported by a local shop that is not a sponsor. I've learned the hard way how serious things can get if you mention a non-sponsor on here. I don't see how it would matter who ported them anyway. What is done to them is what matters. The heads were gasket matched along with the intake and lightly ported. Nothing special.