This is topic 3.55s 3.73s or 4.10 help in forum Tech Talk at Northern California Ford Owners  .


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Posted by fam_lace (Member # 8565) on :
 
I have a 351w im my 92 coupe i was think about some gears current has 2.73 i own some 3.55s but was think bout 4.10 or 3.73 motor has a x303 cam rhs215 heads tfs 351r intake etc. i pulled 120 in 4 gear at 4grand on the highway and at 1500 in 5th im doing 70 how bad would the 4.10s be on the top end the car should spn to just about 6500

[ October 04, 2010, 11:13 AM: Message edited by: fam_lace ]
 
Posted by 03RedfireSVT (Member # 10069) on :
 
Man those 2:73s are some long gears, LOL. But it all depends what you're looking for. 4.10s will get you some nice ETs but say goodbye to gas mileage on the freeway. You didn't say anything about 3:73s, those are in between. I'd go with those.
 
Posted by fam_lace (Member # 8565) on :
 
lol good lookin i was tryin to be greddy wit the 4.10s
 
Posted by 93sspCOUPE (Member # 8418) on :
 
3:73's is say
 
Posted by 03RedfireSVT (Member # 10069) on :
 
LOL. It's all taste dude...when I got my posi rebuilt on my Cobra, a lot of guys were telling my to do the 3.73s since everything was out but...I'm not a drag racer, and I prefer the longer gears, and I have the power to get through the gears so...It's all taste. If you like your car to have a nice note on the freeway...3.55s.

[ October 04, 2010, 12:01 PM: Message edited by: 03RedfireSVT ]
 
Posted by fasthatch (Member # 7277) on :
 
n/a or with a bottle go 4:10's
 
Posted by 94 N.C.F. GT (Member # 3946) on :
 
3.90'S
 
Posted by SteveL (Member # 1241) on :
 
4.10 / 2.73 = 1.5

1500 rpm @ 70 mph would be 2250 rpm with 4.10 gears.
4000 rpm @ 120 mph would be 6000 rpm with 4.10's.

3.73 / 2.73 = 1.37

etc.
 
Posted by 92stangLX (Member # 3252) on :
 
Assuming it's a 5-speed and you drive it on the freeway then I would go with 3:55's
 
Posted by Notch_notch (Member # 8902) on :
 
i use 3.73 gear allday...on my 89 coupe

[ October 04, 2010, 06:40 PM: Message edited by: Notch_notch ]
 
Posted by 79 cobra (Member # 10137) on :
 
i wud use 3:55 or 3:27 cus u got a 351 u got all the power and torque 2 get through the gears quickly rember 351 dont like 2 spin a lot of rpms
 
Posted by fam_lace (Member # 8565) on :
 
Them 3.90s sound good maybe ill lookin to them or just do the 3.73 cause i do hit the highway
 
Posted by jaejae (Member # 7958) on :
 
have fun [Wink]

http://www.corral.net/index.php/tech/calculators/147-gear-ratio-calculator
 
Posted by fam_lace (Member # 8565) on :
 
yup them 3.90 seem just fine
 
Posted by 1QwK5ohHhhh (Member # 6301) on :
 
id say go with the 3.55 best i think 3.73 are the next option

[ October 07, 2010, 04:30 PM: Message edited by: 1QwK5ohHhhh ]
 
Posted by warhorse58gt (Member # 7702) on :
 
fuck you mr. e.. 4.56's or gtfo! [patriot]
 
Posted by fam_lace (Member # 8565) on :
 
Lmao hella naw not drivin them on nobodys highway 4.5damn6s
 
Posted by NorCalRydaz (Member # 3233) on :
 
If you get 4.10 1st gear won't exsist. They will kill you on the freeway too. good luck
 
Posted by sydewayzLX50 (Member # 10217) on :
 
i put 373s i love them and i dont mind the higher rpm on the freeway. 1st gear is kinda short though but easy to get used to. make sure to get the widest stickiest tires you can youll be breakin traction way too easily. i wouldnt recommend 410s unless you get a better transmission or a t5 with the 2.95 first gear set
 




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