1fastpony
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Never ran the 1/4 or even 1/8 mile stock. I don't think I have my 1st time slips but at the 1/8 mile with street tires and intake and tune I would run 8.8 to 9.4 at 82 or 83 MPH. First time at the 1/4 mile with the addition of LCA and UCA I was in the mid to low 14s at 101 or 102. If you are on street tires with N/A S197 you will be lucky to get 13s on this track.
Laugh at this. When I was stock I never went faster than 101mph. My 60' were 2.0 -2.1. My best et was 13.72 @ 99.5mph with a 8.8 80mph 1/8. Norm was 13.8 -14.2 @ 100 mph.
Thats a 12.5-12.6 at 108-109mph if it doesn't pull timing.Not sure about your elevation/track conditions but here in Florida during the summer heat i ran a 8.2@87mph w/ a 1.8 60ft.
Intake/LTs/3.73s/UDP/CMCVs on street tires. Car is tuned to shift at 6500rpms. (Automatic)
I never checked the AFR on that tune but it should be good. The AFR on the race tune was about 12.6
The Bamma Race tune should be 12.6 afr that is where Doug found the most power. A little on the rich side but the little 3v 4.6 like ist that way.
High DA is not your allie but HEAT Soak really kills et and most, mph. Here is a little secret to try between runs. Do not leave your hood down, open it. Then break down your CAI from the plenum and take the MAF housing apart from the filter and find a cool place to put it or if you can bring a fan to cool it down. That little MAF is you worst enemy. I have ran 12.50's at 104-105mph and datalogged to show people the impact on et/mph from MAF heat soak. my 1/8 times would be great but the car would absoluty fall on its face after the 1/8 to traps. If the engine and MAF is too hot it will kill the N/A car performance. From seeing your 60' and 1/8 et's they look good for 12.7's but noticing your 1/8 and 1/4 mph are very slow and appears the car is pulling timing. Have or can you hear your knock sensors? If so its pulling timing and datalogging will show it. The race tune should put you in the 30* - 32* range. If it aint there say about 25-26* that is why. Also, if you have just loaded a tune and the car hasn't had enuff time to adjust it will not run it's best. It is good to give it a few minutes to digest the new program.During the summer both the 1/8 mile and 1/4 miles tracks D/A is easily 3000' to 4000'. The 1/8 mile tracks elevation is located 1650' and the 1/4 is located 1150'.
These are just little OJT's over the years I have learned or picked up from others at the track. You would laugh at how many folks I have helped at the track that couldn't bust 13/s or 12's and tried these tips and boom they got their 12 or 13 second et.
Give er a try it can't hurt.
I would also like to add that Doug once told me that there is no performance difference from 91 tune or 93 tune. And I tried them both and couldn't notice any difference. The performance tune is maybe 1/10 et difference at best.
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