Where the hell is my mph?
Thread Starter
Launching!
Joined: Oct 2003
Posts: 292
Likes: 0
Where the hell is my mph? My best run was a 11.82 @116.8 with the 231/237 cam. But i see alot of people trapping 119 to 121mph with this cam. Where the hell is my mph? If anybody can find it, please tell em to meet me somewhere. Lol.
whats your 60'? im going through the exact same thing and i think my problem is that im shifting at 6400-6500 and and i should be shifting at 6800-6900 which makes sense since my car peaks at 6500. you gotta be in the next gear about 300-400rpm passed where your peak power is.
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TECH Enthusiast
Joined: Dec 2003
Posts: 533
Likes: 0
From: Novato, California
I'll second the importance of shift points. Before I installed the new shift light I was only trapping 91.xx in the 1/8th, now I trap 93-94 pretty much every run.
Also what is the altitude of your track, Fred
Also what is the altitude of your track, Fred
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Verdad Gallardo if the conditions were different thats one thing...if your running your 12.08@116 in 40-50 degree weather & new cam/heads setup in new weather obviously theres gonna be some difference, also i know those gears arent best suited for that cam.
like fred said....i was trapping a disappointing 113mph before my shiftlight nexted weekend i installed a tach&shiftlight and i trapped 117 with hitting the rev limiter every shift, DA of 2560, 100% full wieght through the full exhaust.
i just found out i should be shifting at 6800-6900 so i got my rev limiter moved to 7100 and got some 4:10s installed. if i can get 120+ with my street trim setup in this wheather ill be happy as hell.
i just found out i should be shifting at 6800-6900 so i got my rev limiter moved to 7100 and got some 4:10s installed. if i can get 120+ with my street trim setup in this wheather ill be happy as hell.
Originally Posted by goinbroke
Looks like your running the same times as me but you are trapping 120mph.
well, IMO for that ET your MPH is not way off, its acceptable. You can't go comparing your car to others with a similar cam, just too many variables. Unless those other cars were racing at that same track on that same day as you it doesn't mean a huge amount.
You might be surprised at what tuning could do for the car, if nothing else it'll help you find the shift points and what RPM you want to be trapping at, which could make you re evaluate your gearing and tire height choices.
You'll get it figured out, let us know
You might be surprised at what tuning could do for the car, if nothing else it'll help you find the shift points and what RPM you want to be trapping at, which could make you re evaluate your gearing and tire height choices.
You'll get it figured out, let us know
10 Second Club
Joined: Jun 2002
Posts: 1,884
Likes: 4
From: H-town
let us know what happens when you go back to the track with higher shift points and DA/weight info. i have a similar cam and trapped 119 at 11.88 on a 1.88 60' with a M6 and 3.73s also. i dont remember the DA but it was hot and humid. not the best raceday there is. i recently installed a TH400 and am expecting to lose some MPH but hopfully i can get a better ET.