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430 & 456 guys

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Old Feb 17, 2008 | 03:40 PM
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Question 430 & 456 guys

just would like to to know with those gears what cams are you all running and tire size. curious to see how most like it and plan on changing up etc.. oh do you still drive around the city like interstate at what speed thankx.(430 and bigger sorry forgot to say)
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Old Feb 18, 2008 | 06:47 AM
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IO have 4:30's in my car M6, ,my tires are 315/35/17's ,the cam is a Crane 250/266-651/651-112 and my rpms are 55 mph is around 1700rpms
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Old Feb 18, 2008 | 10:18 AM
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I have 4.30's in my 9". At 75 MPH in 6th I am at 2150 RPM with 295/35/18's in the rear.

I am putting some PRC stg 1.5 heads and a 230/232 cam in with a fast 90/90 in next week I'll keep you posted. I will have to see if I need a taller tire at the track or not. I am hopeing that I can keep my 26" tall tire and not have to go to 28".
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Old Feb 18, 2008 | 12:02 PM
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4.57 with a trex cam.60mph on 5th gear@2000rpm.325/50/15 mt dr tires.
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Old Feb 18, 2008 | 06:13 PM
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so what about 4.56 in 6th gear... RPM's??? does it make the top 3 gears much more usable.... i have a pretty huge cam and i am looking to wake up my mid range which is really flat.... before i go with my 9" want to decide on some gears... 4.30 or 4.56's.
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Old Feb 23, 2008 | 11:31 PM
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they way people talk around here like you should not get bigger than a 410 or you will need a trailer thats why i made this post some people might wanna know just like i do.
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Old Feb 23, 2008 | 11:53 PM
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Originally Posted by lilicedout24
they way people talk around here like you should not get bigger than a 410 or you will need a trailer thats why i made this post some people might wanna know just like i do.
Are you an A4 or M6?...Look at posts #3 and #4 man. Doesnt sound like trailer RPMs to me as long as you are M6. If you are A4...4.10s will bring you closer to 2800-3000 at 70, so i could see 4.30s or 4.56s being trailer for an auto.
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Old Feb 24, 2008 | 12:34 AM
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Originally Posted by LS1Silverado05
Are you an A4 or M6?...Look at posts #3 and #4 man. Doesnt sound like trailer RPMs to me as long as you are M6. If you are A4...4.10s will bring you closer to 2800-3000 at 70, so i could see 4.30s or 4.56s being trailer for an auto.
true i agree me i am a M6 i am hoping to be ready for the dyno in a week or 2
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Old Feb 26, 2008 | 12:05 AM
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finally installed my 9 inch with adj t arm tunnel brace set up. it was a bitch to anyone out there i know they must have a easy way. and i still have stock LCa waiting on some adj ones rear went up fine.hopefully i be done in a week or less with car so i can hit the dyno
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Old Feb 29, 2008 | 09:21 AM
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I have 430's with 28" nittos ,1900 @ 70mph.thats with a m6
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