this Guy on a coyote related fb page said he has the exact same setup as me boss Intake, full exhaust, tune, 3.31 gears and a 28 inch tall DR. He says he spun. His coyote car all the way to 8k rpm.at the track ran 11.8@118-119 with 3.31 gears and a 28 inch tall MT drag radial.he said he only shifted into 3rd gear. would that be ok on srock valve springs? I figure this ccould be one way to raise my low trap speed times besides going to a 3.73 gear. I just worry about driving on my daily wheels with 3.73's which are 26.2 inch tall tires (235/50/17).
shifting at 8k with boss manifold?
- Thread starter okc12silvergt
- Start date
Hell no that's not ok, and ya he'll blow up real soon! Bryan you already spin too high for a stock valvetrain nonboss coyote. Matter of time!
Just run 3rd gear out to 8K at the track, shift the others at 7500. At least that's what I did with my MT82 coyote with a boss manifold. Logged 17K miles with 0 issues on the stock Ford oil.
See my above post. Not saying it wont eventually hurt it, but I never had an issue. On the street I shifted at 7500. Only time I took it to 8000 was running out 3rd at the track.
Lol anything on the coyote fb page is legit.
Do it and report back.
Do it and report back.
I wouldn't really call an 11.8 a great time, at least not to mod my car by. The tire and gear combo is horrible for low power n/a, I know I as I tried running the same but with stock manifold and ran the same on radials. Step down in tire size, or put in a gear. The car would either bog or spin on radials, Very hard to leave with that combo. Put a 26" tire on mine and went 11.6 in 2000da
:lol:
Im not saying you will not break it or it will be ok, but we have done it and had decent results
deff not optimal lol nothing wrong with running it out to 8k through the traps though
those springs with boss light weight valves can handle some rpm, but 8k seems high..
Even with the boss intake the motor is pretty much out of breath at 8k. With that said this season I will be pulling my stock intake to 76-7700 out the back door. I am not expecting any issues at all.
Shift at 7500 and be happy with that.
Just curious, why are you planning on revving that high on stock intake? It stops making power at 6800 so revving that high is only gonna slow you down, unless there's some other reason behind why your doing it?
Been in some real close races and pulled it to 8k
Actually dyno graphs that I have seen stop making power at 6500. My car has never been on a dyno. The reasoning is that it will accelerate harder in the middle of the track. Will see if it works. Don't fear the gear!
You need to either step up in tire size, or to a taller ratio. Almost 1000 RPM could give you a quicker time if you are in the powerband instead of way past the peak power.
I appreciate your concern about my race program. It has shown, not in my car but others have tested a lower numeric gear and it just makes the MPH go up. We have two gear ratios ready if one doesn't work the way we want it will go back. The basic goal is to get the car to accelerate harder in the first part of the track 330'. After that there really isn't much going on.
Where did I say I was shifting a stock manifold at 8K?
Manifold or stock CAI? sounded like you were refering to the manifold! sorry.
He was referring to the manifold. But he stated 7600-7700, not 8000.
your right damn.. but 300 rpm's isnt going to make any difference lol
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