Has any run 4.56's in they're auto 2V? - Mustang Evolution

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Old 06-29-2016, 03:34 PM   #1
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Has any run 4.56's in they're auto 2V?

Curious if any one has and what your thoughts/experience on them were.

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Old 06-29-2016, 03:40 PM   #2
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Curious if any one has and what your thoughts/experience on them were.

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Are you considering that as a gear ratio?

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Old 06-29-2016, 04:13 PM   #3
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Would not be fun on a daily driven car, especially with a 2v's redline. Also if you plan on FI in the near future I wouldn't exceed 4.10's. You would be overgeared with 4.56's imo.
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Old 06-29-2016, 05:09 PM   #4
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I would go with 3.73, and no more than 4.10.

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Old 06-29-2016, 09:24 PM   #5
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IMO not enough RPM to put 4.56 in these cars.


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Old 06-29-2016, 10:05 PM   #6
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I think that would hurt performance if anything...you need at least a little top-end to finish the race. And like sonic said, that would suck as a daily. On the stock gears I shift into 3rd at the end of the quarter (which is the last gear you have to race with)

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Old 06-29-2016, 10:11 PM   #7
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It would be interesting....Ive seen a lot of 4.30s being ran on autos with Jmod, tune, torque converters. With just the usual bolt ons, LCAs, subframes, and good rubber they run some decent qtr mile times for cars that dont really have that much into them.

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Old 06-29-2016, 10:20 PM   #8
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My cousin out in Montana has a ModFox, auto, 4.30s, converted to carb (previous owner), all emissions stuff gone (no hp increase of course just saying), stage one or very mild cam, exhaust, a TON of weight reduction, stall, J mod, shift kit, sticky drag radials, drag set up Lakewood shocks/struts/springs, and he has run into the mid to lower 12s on that set up. Not a car that would be comfortable to drive daily with everything gutted but its a cheap *** car he can take to his local strip and have fun with, also with very low maintenance costs. Of course he wants it faster so he is building an engine on the side to SC and has the inner wheel tubs to do a minitub on it this winter as he swaps over the new engine too. He will be changing to a 410 or 373 gear at that point as well with the FI. Roll cage also as he gets yelled at for it already. But he thinks he will be in the low 11s or high 10s next summer with about 500-550 whp

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Old 06-29-2016, 10:24 PM   #9
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4.56's in an auto 2v means that the car will shift into overdrive around 90 MPH, assuming stock rev limit.

That would suck. Gearing a car down like that doesn't make it faster or make it accelerate harder. In fact, that car would be horrible to drive.

4.10's with a stall is the most gear I would recommend. Even then, around 105 - 110 MPH, the car will shift into 4th gear depending on your tire size. So, maybe 3.90's if you plan on having the car trap around 110 MPH.
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Old 07-01-2016, 03:24 PM   #10
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Hmm, I thought they may be too steep. I have also been looking at 4.30. Right now I need a lot more down low. City driving is almost miserable with no guts down at the bottom. Since I'm buying an 09 gt and another motorcycle I've decided not to go FI on this one. Just cams, gears, converter and a few other bolt ons. I'm torn between 4.10 and 4.30. I've driven an 03 2v auto with 4.30's and loved it, that's what sparked the curiosity with the 56.

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Old 07-01-2016, 03:26 PM   #11
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And I'm not worried in the slightest about fuel economy.

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Old 07-01-2016, 03:27 PM   #12
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Hmm, I thought they may be too steep. I have also been looking at 4.30. Right now I need a lot more down low. City driving is almost miserable with no guts down at the bottom. Since I'm buying an 09 gt and another motorcycle I've decided not to go FI on this one. Just cams, gears, converter and a few other bolt ons. I'm torn between 4.10 and 4.30. I've driven an 03 2v auto with 4.30's and loved it, that's what sparked the curiosity with the 56.

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You will roast the tires off of the car, but it will be fun until the engine lets go.

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Old 07-01-2016, 03:29 PM   #13
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If you find traction that thing would put down an awesome 60ft at the track.

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Old 07-03-2016, 08:46 AM   #14
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With a full steeda suspension and 305 DR's I'm hoping I can get it to hook at the track, and also hoping when it's on the street with the 305-315 nitto's our back that I don't have too many traction issues. Guess I'll find out and deal with any problems as they pop up.

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Old 07-03-2016, 10:05 AM   #15
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With a full steeda suspension and 305 DR's I'm hoping I can get it to hook at the track, and also hoping when it's on the street with the 305-315 nitto's our back that I don't have too many traction issues. Guess I'll find out and deal with any problems as they pop up.

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Old 07-03-2016, 05:57 PM   #16
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Old 07-03-2016, 06:31 PM   #17
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Grammar Police Officer Scotty strikes again. You have been busted.

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