I am a auto but went with 3.73 due to the fact I knew I was going to a blower. If I had it to do over again I would go to 3.55. I only go to track once a year.
If you are staying N/A 4.10 will give you a lot of bang for the buck. Consider 3.90, they all cost around the same, it's the install that adds it up. Is a solid 500.00 mod in most places, so is not something you want to do twice.
When I went to 3.73 while still N/A was pretty nice. Only about 200 RPM more on the highway but could feel the accerlation on the way up. 4.10's would be great if you are on the track more often, but look into the 3.90's. If I was going to stay N/A thats what I would have gone with. Now if I had a stick, thats a different story.
And 12.9's are very possible, I can get into the 11's easy but a guy I ran with 2 weeks ago is N/A with bolt ons ran a 12.1, is Auto, but had 315 drag radials hooking up. Very, Very strong 1/4 mile times!
Good luck
I have a manual with 355 from the factory. No whine whatsoever and this is a vert--I would hear the whine.
Cruising at 2000 rpm around 68 mph. Should have just gotten the 331 and then upgraded to the 373. 410 would seem to be too much.
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TG '07 GT Vert with Saleen Racecraft suspension, GT500 exhaust, lightbar, silver painted stripes, 3:55 rear, 18" polished bullitts, MGW shifter, mirror with temp & compass.
'65 FB Shelby clone, 5 spd T5, dark blue with silver stripes. Added 4 pt roll bar and FR manual rack & pinion. Has JME dash w Autolite Phantoms, Torq Thrust D wheels, aluminum dash, etc. 14.2 sec in 1/4.
I know this is like a question in a question but i have a 06 gt with 331's and im thinking of going with 373's i plan to supercharge it in the near future should i stick with 373s or just go for 4.10's i also talked to the local dealership they said 350.oo to instail is that a good deal or keep looking srry for the question inthe question thow??
I know this is like a question in a question but i have a 06 gt with 331's and im thinking of going with 373's i plan to supercharge it in the near future should i stick with 373s or just go for 4.10's i also talked to the local dealership they said 350.oo to instail is that a good deal or keep looking srry for the question inthe question thow??
See my post earlier in this thread about FI and my thoughts on gear ratio.
With respect to cost, I think I paid about $260 for the gears and master bearing set and about $350 on labor sounds about right.
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Victor
2007 Foose Stallion "The Prowler"
FRPP Polished Whipple SC - 8lb boost, FRPP Hot Rod Cams (M-6550-3V), FRPP Ceramic Coated Shorty Headers, FRPP Tuned Racing Suspension, FRPP Tuned Racing Exhaust, FRPP Axle Back, Steeda TriAx, Nexus Series - AFM, Vac/Boost, Fuel Pressure, Speed of Sound Dash Pod, Raptor Blue LED Shift Light. 425 RWHP 387 TQ
I'm running a 3.55 and a 25.5" tire with a screw blower. 75mph is 2400 RPM's (which I think is perfect). And 1st gear is borderline too short. As soon as I get the car WOT I'm going for 2nd. I have no desire to have a 3.73.
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I get asked why I carry a gun. I tell them its because stabbing people is gross.
I say the manuel tranny's need 3.73
the Auto's need 4.10s
4.10's in the Auto is fine for highway driving. It will hurt the MPG but the seat of the paints feel is worth it
I'm finding that 4.10s with a supercharger are a bit much.
Don't go to 4.10 if you are going to supercharge, 3.73 is more then enough gear. I should have went to 3.55.
And 350 for install is about the going rate where I live, plus parts. I do know of shops that will do it and do it right for less, 250.00 to 300 plus parts
Going from 3.31s to 3.55 wont really be worth the price of the install and you won't feel much difference.
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2008 Grabber Orange GT premium, 5 speed manual, 3.31s
Diablosport Predator Tuner and Bamachips tunes (93 Race, Torque, and Preformance), Boom Tubes
Kooks LT headers and catted H pipe, Steeda UDPs, delete plates, UCAs, LCAs, and Panhard brace, all waiting on time to install them
I'm running a 3.55 and a 25.5" tire with a screw blower. 75mph is 2400 RPM's (which I think is perfect). And 1st gear is borderline too short. As soon as I get the car WOT I'm going for 2nd. I have no desire to have a 3.73.
Sqidd - I am with you... I am running the 3.55 currently and if I am already rolling and nail the gas in 1st, it is going to spin all the way through 1st and part of 2nd, and that is with TCS on! I have been toying with going to the 3.73 because I liked it so much in the N/A set-up, but that still may be a little much with the blower. I definitely would not want to go more.
Sounds like stlwagon may be considering dropping back to 3.73.
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Victor
2007 Foose Stallion "The Prowler"
FRPP Polished Whipple SC - 8lb boost, FRPP Hot Rod Cams (M-6550-3V), FRPP Ceramic Coated Shorty Headers, FRPP Tuned Racing Suspension, FRPP Tuned Racing Exhaust, FRPP Axle Back, Steeda TriAx, Nexus Series - AFM, Vac/Boost, Fuel Pressure, Speed of Sound Dash Pod, Raptor Blue LED Shift Light. 425 RWHP 387 TQ
Question, if I have an auto 07 GT what would my overall MPG be like with 3.73 or 4.10 gears? Right now it is just under 20 MPG and I wouldn't wana drop too much from that.
Question,if. I have an auto 07 GT what would my overall MPG be like with 3.73 or 4.10 gears? Right now it is just under 20 MPG and I wouldn't wana drop too much from that.
Figure about 1 mpg with 3.73s and 2 mpg with 4.10s...
Figure about 1 mpg with 3.73s and 2 mpg with 4.10s...
Ah yes.... but also remember to take into consideration the "feel the power" disease which is so contagious and for some reason affects the foot in a strange way - which most always seems to result in making the foot heavier.
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Victor
2007 Foose Stallion "The Prowler"
FRPP Polished Whipple SC - 8lb boost, FRPP Hot Rod Cams (M-6550-3V), FRPP Ceramic Coated Shorty Headers, FRPP Tuned Racing Suspension, FRPP Tuned Racing Exhaust, FRPP Axle Back, Steeda TriAx, Nexus Series - AFM, Vac/Boost, Fuel Pressure, Speed of Sound Dash Pod, Raptor Blue LED Shift Light. 425 RWHP 387 TQ
Question, if I have an auto 07 GT what would my overall MPG be like with 3.73 or 4.10 gears? Right now it is just under 20 MPG and I wouldn't wana drop too much from that.
Mine is an 07 auto too with 410s and most my driving is in town. According to the cars info center mpg average is 16.5-17. I also have a CAI/tune and I'm not the most conservative driver.
