4:10's, 02 GT, Installed

KarmaKid · Mar 24, 2007

Well, I finally had my gears installed. Went with the 4:10's instead of 3:73's beacause I'm most likely going to stay NA. I must say, I'm not as impressed as I thought I was going to be. You can obviously feel a difference in torque and get up and go, but not as much as I expected. Took it on the highway and at about 2700 RPM's at 80. That was with my GPS detecting my speed, I have not recvd my SCT tuner yet to recal. the speedomoter. Anywho.....I'm going to post some vid clips of MPH/RPM comparison when I get a chance. Any questions, let me know

KarmaKid · Mar 24, 2007

ooops...

...sorry about that. Wasn't sure which section I should have put this thread in

XxMustang281xX · Mar 24, 2007

that RPM to that speed doesnt sound right to me. Anyone else thinking that??

Tim2002GT · Mar 24, 2007

That doesn't sound to far off. I don't really know what 80 is rpm wise in mine, but 70 is just under 2400. I have 4.10's as well.

KarmaKid · Mar 24, 2007

XxMustang281xX said:
that RPM to that speed doesnt sound right to me. Anyone else thinking that??

Ummm, nope. At least not on my car. Here's a calculator for ya....

http://www.tchracing.com/tech/gearcalc.php

Heres what I got for an answer, which is basicly what my car is at:

Your tire's diameter is 25.681 inches
At 80 MPH in 5th gear, your motor is turning at 2,661.7 RPM

XxMustang281xX · Mar 24, 2007

hm, thats not bad at all, i was thinking 4.10's made your RPM's a good bit higher than that.

KarmaKid · Mar 24, 2007

Tim2002GT said:
That doesn't sound to far off. I don't really know what 80 is rpm wise in mine, but 70 is just under 2400. I have 4.10's as well.

Hey Tim,

I ordered my SCT tuner this past week and waiting for it to come in. How much of a difference did you notice and in what departments did you notice them in (TQ/HP/Throttle Response etc.)? I am also looking at the MGW shifter now that I will be banging gears a little more often. Whats your opinion on that also? I only ask because we both have 02's.

Thanks!

KarmaKid · Mar 24, 2007

XxMustang281xX said:
hm, thats not bad at all, i was thinking 4.10's made your RPM's a good bit higher than that.

I noticed with GT's 2001.5 and up they used a different tranny, which makes the RPM difference. I think it's a T45 in the lower years and a 3650 in mine. I think? lol

Duke309 · Mar 24, 2007

thats the right rpm for the 3650, would be around 2900 for the t45 at 80mph. I honestly can't see how you aren't totally impressed with 4.10s.

ShapeShifter · Mar 24, 2007

in mine im going 65mph at 2500RPM..auto tranny tho

bransdaman78 · Mar 25, 2007

well

Duke309 said:
thats the right rpm for the 3650, would be around 2900 for the t45 at 80mph. I honestly can't see how you aren't totally impressed with 4.10s.

give him a few days... i was like that too - but only because you expect too much, nothing is as good as FI, but youll see soon that 4.1o's are where its at - go drive a stock GT next week and you will see the light

KarmaKid · Mar 25, 2007

bransdaman78 said:
give him a few days... i was like that too - but only because you expect too much, nothing is as good as FI, but youll see soon that 4.1o's are where its at - go drive a stock GT next week and you will see the light

Yeah, thats what I'm thinking, driving a stock GT and making a comparison. Maybe even racing another. I think Im a lil weary at first of smoking tires/using more gas/and banging gears to much than usual, lol. That's why I bought the gears though.......so I can do all that sh&t

Tim2002GT · Mar 25, 2007

KarmaKid said:
Hey Tim,

I ordered my SCT tuner this past week and waiting for it to come in. How much of a difference did you notice and in what departments did you notice them in (TQ/HP/Throttle Response etc.)? I am also looking at the MGW shifter now that I will be banging gears a little more often. Whats your opinion on that also? I only ask because we both have 02's.

Thanks!

The biggest difference I felt with the tuner was in the lower RPM range. Throttle response was considerably better than the stock tune. MGW shifters are awesome! The gear changes have a nice "positive" feel and the handle is adjustable. Which adds alot to driver comfort.

5spd GT · Mar 25, 2007

About your impressions, you have to be careful on what you read and the bias opinions you get. Things get 'exaggerated' naturally.

Most of the time when a mod is done, many are semi-dissapointed because it did not do what other stangers seem to imply.

Mike97gt · Mar 25, 2007

5spd GT said:
About your impressions, you have to be careful on what you read and the bias opinions you get. Things get 'exaggerated' naturally.

Most of the time when a mod is done, many are semi-dissapointed because it did not do what other stangers seem to imply.

when I put the 4.10's in my car I could not wipe the smile off my face for a few days, it was the best mod I did to that car. only problem is traction after the gears.

4:10's, 02 GT, Installed

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