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How are 4:30's on the highway?

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Old 06-22-2006, 06:56 PM
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Default How are 4:30's on the highway?

I tried a search for 4.30 and 4:30 with no matches. I want to upgrade my 3:42's to either 4:10's or 4:30's. I go to the track about 2 or 3 times a year, and drive on the highway to and from work occasionally. I put about 5k per year on the car so it's not like it's a daily driver. I want something that is going to pull out of the hole so the car will stop bogging at the line, but I don't want to lose a ton of MPG or highway drivability. Anyone with 4:10's on up, please chime in with your opinion. Thanks in advance.
Old 06-22-2006, 07:00 PM
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Old 06-22-2006, 07:11 PM
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Originally Posted by BrandonDrecksage
Thanks. 4th gear with 4.10s up to 6500 RPM would be 121 MPH, and 4.30s would be 115 MPH. Sounds like I should go for the 4.10s.
Old 06-22-2006, 07:37 PM
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4.30s are freakin awesome
dad's gottem' in his firehawk
70 is dead on 2000 rpms, makes shifting a whole lot more fun too
as where my automatic with 4.10s is at 2700 at 70.
i'd definitely recommend them over 4.10s
Old 06-22-2006, 08:35 PM
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Originally Posted by 1999Z28
4.30s are freakin awesome
dad's gottem' in his firehawk
70 is dead on 2000 rpms, makes shifting a whole lot more fun too
as where my automatic with 4.10s is at 2700 at 70.
i'd definitely recommend them over 4.10s
I had a TR220 and trapped around 113 MPH at the top of third. Now with the bigger cam I am hitting the rev limiter just before the 1/4 and am only hitting 111-112. I think 4.10s would put me nicely into 4th gear. I don't want to have to shift into 5th at all in the 1/4.




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