This is topic top speed in 4th gear with 3.73's? in forum Tech Talk at Northern California Ford Owners  .


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Posted by jaejae (Member # 7958) on :
 
i was always curious becuase my speedo doesnt work..lol..im on 17 inch wheels with 245/40 up front and 275/40 in the back..stock t5..i usually cut the race after i get near 5800 in 4th how fast would i be going?
 
Posted by Bigjerry916 (Member # 8787) on :
 
2mph
 
Posted by stangin' (Member # 514) on :
 
too fast if you're not at the track [Razz] .
 
Posted by jaejae (Member # 7958) on :
 
quote:
Originally posted by stangin':
too fast if you're not at the track [Razz] .
how fast is too fast?
 
Posted by Ty (Member # 4920) on :
 
go onto norcal1320.com, they got a good calculator for all that stuff
 
Posted by Ty (Member # 4920) on :
 
heres the link actually
http://www.norcal1320.com/calculators.html
 
Posted by 23109 (Member # 4347) on :
 
I would get about 115 on a 26 tire around 5600rpm at the track
 
Posted by 8stang8 (Member # 8082) on :
 
quote:
Originally posted by Ty:
heres the link actually
http://www.norcal1320.com/calculators.html
WOW... if that calculator is true i cant wait till the next grudge.
 
Posted by SPTVENM (Member # 7080) on :
 
i can hit 120 at the top of 4th gear after that i have to go to 5th
 
Posted by SPTVENM (Member # 7080) on :
 
quote:
Originally posted by 8stang8:
quote:
Originally posted by Ty:
heres the link actually
http://www.norcal1320.com/calculators.html
WOW... if that calculator is true i cant wait till the next grudge.
shit is wack, hella off i think

[ August 12, 2009, 01:12 AM: Message edited by: SPTVENM ]
 
Posted by blkfoxbody89 (Member # 8361) on :
 
Damn, if that thing is right I should have just about cracked my block at 507 Fwhp. if my car weighs 3350 and went 118mph [Eek!] ..
 
Posted by 87TURBO (Member # 9257) on :
 
about 122/125
 
Posted by Jawsgear (Member # 8080) on :
 
The RPM to MPH Calculator is correct, I dont know about the others as I did not check. I compared it to ours at http://www.jawsgear.com/calc_rpm.html for confirmation.

Jeff
 
Posted by MikeD. (Member # 8060) on :
 
Anyone know that 5th gear ratio on a stock Ford T-5?
 
Posted by SteveL (Member # 1241) on :
 
Those MPH/RPM calculators are not very realistic for calculating top speed. They might come close when the car is on a dyno with no loading. Wind resistance at high speeds would keep actual speed somewhat less than those calculators estimate.

[ August 21, 2009, 11:57 AM: Message edited by: SteveL ]
 




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