i have a 02 gt 5spd .what i like to know is where does the rpm set at driving it at 60mph.with 373s
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i have a 02 gt 5spd .what i like to know is where does the rpm set at driving it at 60mph.with 373s
should be right at 2000.
yeah it should be around 2000 - 2500 rpms
whats your tire size? I know you have 20s or something like that...
with a t45 and 275/40/17s im at 1900 at 60, with bigger tires/t3650 you should be around 2100-2300 at 70.
Originally Posted by Steve
i just fix my tire so know i have 285/30r20in the rear.and also your gas is it bad or no
thanks everone just what i needed to know
you might, might, might notice like a drop by 1-2mpg....or you might not notice one at all.i just fix my tire so know i have 285/30r20in the rear.and also your gas is it bad or no
2001 Chevrolet Corvette
The Vette gets em' Wet, it also handles nice too.
will i guess that aint bad
I get about the same GM with 3.73 that i did with 4.10s. I get around 25mpg on the highway which is better than most ppl get with no mods. Its all in your right foot.
whats the diferance in 4 10s and 3 73sI get about the same GM with 3.73 that i did with 4.10s. I get around 25mpg on the highway which is better than most ppl get with no mods. Its all in your right foot.
also does it throw the speedometer off
yes.. just like your 20" wheels choice did more than likely.
you can buy a speedcal or get it fixed with a tuner.
2001 Chevrolet Corvette
The Vette gets em' Wet, it also handles nice too.
i have a tuner thats sct x3 does that work with it cause i seen it in ther about 373s and 410s
yea the sct will fix the speedo recal
yeap sure did it feels differant then the stock ones....
Difference in gas mileage or how they feel?whats the diferance in 4 10s and 3 73s
At 60mph and 80mph it's about a 170 rpm difference, so not bad at all. But the difference in acceleration is immediately noticeable and if you are running any kind of performance camshaft, you will definitely like the 4.10's.
Where are you getting yours done? I'm looking for a shop to do mine right now.
I'll be going to Maximum Velocity for mine... I have 373's in the mail right now on the way to the house. Gotta make a trip back up to Cincinnati for a week, but when I get back, they're going on
"Average" Tanner Smith
Hopefully you liek those^...I hate 3.73s lol I wanna go back to 4.10s or 430s
i notice alot better low end then top end. but hopefuly when i get it tuned it acts better....but i still need my 24lb injectors and my accufab tb/plenium,90 maf,high flow fuel rails...
i went to south texas performance for the gears specialfor mine
i have 373`s on mine,355 stock,,but i have a 6spd,,gas mileage dropped,i find i bounce off rev limiter to much,i also drive alot of highway...im at 2150@70,,was 1700@70..
[SIGPIC][/SIGPIC]my stock 03 cobra
i also drive on the highway alot.so yup that sucks
Do you have manual tranny or SC? I had an 82 GT with 4.10 gears and it was a freakin' rocket on the street with only a little over 300hp. I've heard 3.73s are better suited for SC apps or manual trannys and 4.10s are better for auto trannys if you are keeping it NA (which I intend to do...SC is just too expensive and NOS can destroy an engine too fast if you abuse it).I'll be going to Maximum Velocity for mine... I have 373's in the mail right now on the way to the house. Gotta make a trip back up to Cincinnati for a week, but when I get back, they're going on
BTW, we'll have to compare when you get yours in. Mine should be done by Saturday
4.10s are better for every tranny.. I curse the human being who came up with that stupid rule...
Which rule? The part about SC's and manuals needing smaller gears or autos needing bigger gears? I think most people are afraid of 4.10s because of gas prices...let's face it, if gas was only $1 per gallon, maybe we would all be running 4.30s
The part about autos needing 4.10s and manuals needing 3.73s. Its BS...
And my gas mileage was 25mpg with 4.10s... I havnt really noticed any change in GM from going to 4.10s to 3.73s except the lack of any balls at all in the car.
PPL are afraid of 4.10s because of false information... Unless your trapping over 115 with a 3650 tranny (110 with a t45) 4.10s should be your first option...
PPL also hate 4.10s because they are to stupid to build their suspension and get good tires to use the added torque multiplication of the ratio..
i cant say i noticed much of anything with my 373's in gas or performance really. it has a little better bottom end torque but not really noticeable.
getting there
h&r ss springs, kyb shocks&struts, 17x9 and 17x10.5 03 cobras, bbk catted x with borla stingers, sct tune and 3.73's.
i also agree with you since i have 3.73s on my car i notice alot better bottom end with my 5spd ...so what is a good set of gears for no boost but just bolt ons
gear swaps in the fox bodies were much more noticeable as you were going from 2.73 to a 3.73. The last two generation of mustangs would have the 3.27 or even 3.55 and the jump wasn't that noticeable.
MIKE
1980 civic V8 transplant
'89 5.0LX: GT40 stock
'01 GT:Auto YSI with a lot of boost
G8 GT: Wife's ride
2001 F150: The Great Dane rig
4.10s... 4.30s even better.
I think if you see a big change in gas mileage its because you're foot is heavier like most of us are after a gear upgrade.
yeah thats true
is there a big differance in the two
Yea.. about the same difference as 3.73 and 4.10s. About 2/3s the same game.
i taught that the 4.10s were more top end
LOL you need to do some serious reading on rear end gear ratios.
The higher the number of the gear, the less speed you will be able to obtain, due to physically running in higher RPMs. BUT, the theoretical speed lost is not always obtainable anyways due to a mustangs piss poor aerodynamics anyways. To overcome the aerodynamics issue you need to add more power.
4.10's would be better....
04 Redfire GT Mods: BBK Plemum * BBK 75mm T/B * BBK Cold Air Kit * H&R Drop Springs * Steeda Tri-Ax Shifter * Steeda Pulleys * MAC O/R H * UPR C/C Plates * Flowmaster Mufflers * Diablosport Predator Tuner * FRPP Clutch * FRPP 4.10 Gears
i think im gonna look in to them more thanks...i just put 3.73s i notice a differance in it and my rpms also
I don't know if I would call it a rule as much as just a rule-of-thumb, but it certainly exists for a reason. A 4R70W has a first gear of 2.84, where the T-3650/T-45 have a considerably steeper 3.38/3.37.
To get about the same acceleration out of both, 4.10s for the auto and 3.73s for the 5-speed are a nice step up without being too radical.
My first Mustang was a 1990 GT with the AOD which had a 2.40 first gear. Combined with the 2.73 rear end you could exceed the 55mph speed limit just about red line in 1st gear. Sigh.
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