Dollars per Tenth Improvement

[Devilish34]

First, I stated earlier that gains are not cummulative. Their add-on returns diminish as you do more and more due to traction, affect on each other, making the next weakest link apparent, etc.

Having said that, if I read your signature correctly, you only picked up about 0.05 seconds in the 1/4 by intalling headers? Something's wrong. A half of a tenth? Did traction begin to get ugly? Were the track conditions/temps/etc really worse than your other runs? Were your other runs prior to headers simply phenominal given the prior mods? I don't think anyone with long tubes would expect a half of a tenth improvement.

If that's the case, I'll never put headers on my car for that return for that kind of money. I can spend it better elsewhere...

Somebody chime in here with more knowledge than me please...

I just said I'm still looking for it. Last nights DA was 2316 last Friday 2056 and my previous best was 314(pre headers and with NEP CAI) there are some huge swings in DA there. Last Friday I had traction issues when going from 1st to 2nd. I'll have to wait a while for it to cool down to get a 314 DA at Cecil.

[Devilish34]

Corrected times from Dragtimes.com
12.996 run da 314
Stock and Mildly Modified Naturally Aspirated Engines
12.982 @ 106.943 MPH
NEP side mount
13.08 run on 6-19-09 da 2056
Stock and Mildly Modified Naturally Aspirated Engines
12.77 @ 111.928 MPH
Vararam Headers tune a little lean

I don't have last night slip with me but
1st run was 13.04 around 106.89ish da 2316
Stock and Mildly Modified Naturally Aspirated Engines
12.687 @ 109.939 MPH
Vararam Headers and new tune from Kirk

I guess you could say I found it but just not on paper. I have no idea how accurate this information is.