I have a '04 GT 5 speed. I want at least 4.10's but am a little skiddish about going as low as 4.30's. I drive mostly around town and some highway driving but do not go to the track much at all and do most of my running and gunning on the streets with people. I am curious of the rpm's I would be turning at 60mph with the 4.30's. How much difference would I notice from the 4.10's to the 4.30's. I know what the 4.10's are all about but am thinking about the 4.30's instead. my car is staying N/A too. What do you guys think.
4.10's or 4.30's.....?
- Thread starter cadde300
- Start date
This is the best gear calculator I've found. It will answer a lot of your questions. The best advise on gears is to decide what your goal is for the car, fun to drive, best ET, fastest on the street and then go from there.
http://www.differentials.com/calc.html
http://www.differentials.com/calc.html
thats a great calculator. The difference in rpm's is minimal. I was thinking though, which one would be better as far as street performance. My plans for the car are to set it up with drag suspension so that it will hook up and build the motor a little. Other than that I am done. What gears would everyone reccomend
scalder
Member
Having run recently with both I give a big thumbs up to the 4.30's...most of my driving is around town as well, with about a 10 mile hwy trip mixed in daily to work...cruising at 60mph is fine....70 even better
scalder
Member
Don't get me wrong though, the 4.10's were great...ran the 13.08 with em...but it feels like you are always in the sweet spot with the 4.30's.
scalder
Member
Sounds high to me....maybe at 65-70 but not 60...no way.. I really think you are looking for the same thing I am in a car...trust me the 4.30's are much more fun around town than the 4.10's were.
I'm JUST reaching 3,000 at 80~. I love my 4.30's, wouldn't change a thing (except for the traction 
)
scalder
Member
Hey Cadde300, I finally remembered to take note of my RPM's on the way to work this morning....at 2700rpm's I'm cruising pretty comfortably at 75mph...just an FYI...so did you make the jump? What's the latest??
bergs
Member
i'm under 3000 at 80 with 4:10's at 70 i'm at like 2400 and i cruise at 70-80 pretty much when i'm on the highway
I was in the same position you are, but I pussed out and went with the 4.10's. Im not complaining about them at all, very noticeable up from the 3.73's, and it will be better off when I throw the big bore stroker at her next year sometime. 4.30's would have been too much for that combo.
well i haven't bought the gears just yet. Just trying to get my mind made up which I did. 4.30's are going in. Especially after you guys told me what you are running rpm's wise...not as bad as I thought. I'm going to get the old lady to buy them for me for our anniversary in July, if I can wait that long. I will post when I get them in.
Dark Knight GT
I can't get it up......ok that didn't sound right.
Good choice. You'll love the 4.30's. All the top n/a racers on this board are using 4.30's. Many of them drive their cars daily on the streets.
Hope you love em!!!!
twogts4us
15 Year Member
