Are 308's going to be to tall a gear for a car with a c4 - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 6 Old 10-04-2011, 07:06 PM Thread Starter
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Are 308's going to be to tall a gear for a car with a c4

I currantly have a t5 in my car but I keep having issues with the transmission or the clutch so I'm swapping to a c4 but I have 308's in my car but I'm only running 25" tall tires do you guys think ill be ok with the 308's? And how big of a stall converter should I run my car builds 3psi on my two step at 3700 but I'm not sure if foot braking will put more of a load on the motor and build boost at a lower rpm or not any input would be great thanks


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post #2 of 6 Old 10-04-2011, 07:33 PM
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Try the 3.08s out and see how you like them, you may beni from a 3.27/3.55. I would also give the converter a shot also, get some info at the track and then we can likely help alot more. See what rpm you go thru the traps at etc. You wont make as much boost if any on the footbrake, the 2 step and/or transbrake is the way to go.

What tire?


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post #3 of 6 Old 10-04-2011, 07:59 PM Thread Starter
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Originally Posted by 4Jenna View Post
Try the 3.08s out and see how you like them, you may beni from a 3.27/3.55. I would also give the converter a shot also, get some info at the track and then we can likely help alot more. See what rpm you go thru the traps at etc. You wont make as much boost if any on the footbrake, the 2 step and/or transbrake is the way to go.

What tire?
I'm running M/T et srteet radials 275 40 17's, thanks for the feedback

93 reef blue ported stock heads f-cam gt40 intake On3 performance 70mm turbo 12psi and a c4 and 3.55 gears 11.22
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post #4 of 6 Old 10-04-2011, 09:50 PM
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It seems like itd be a killer street combo though
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post #5 of 6 Old 10-04-2011, 10:50 PM
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see Matt, listen to 4jenna, get some ET / TRACK TIMES!!! meaning, get that c-4 swap done so it's ready for the 29th!!!!!
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post #6 of 6 Old 10-05-2011, 08:44 AM
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some feel that the 3.08s in a full weight mustang will be much harder on an already weak C4 than a 3.27 would. (Lenny at UCC has stated this many times) I say try it anyway and see how it works.

If its not to late, consider a TH400 instead.

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