3.6 diff with 6 speed - any reviews?
#46
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I need to find a dealer around here for diff swapping. Can anyone explain to me why a 99 5 speed and a 3.63 is fail? Here pretty soon going to be doing a 45min commute each way on freeway alone for school and really want to lower the rpm's for highway use. Sitting at 4k in 5th now at about 80. Would love a 6spd but not in the budget, yet. Or would the 5spd w/3.63 make 1st gear tall as hell?
EDIT: Also is there a chart anywhere with what fits, ratios, and what cars they come from with years? Been searching but apparently my google skill need updating
EDIT: Also is there a chart anywhere with what fits, ratios, and what cars they come from with years? Been searching but apparently my google skill need updating
#47
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FM has a gearing chart on their site somewhere that shows speed/gear. That should answer questions. Running the 5spd with the 3.63 would just put a damper on acceleration numbers- you'd still be able to get the car rolling. Definitely feasible given your commute if you can stand a slower car, but IMO with boost it's not a big deal.
#48
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FM has a gearing chart on their site somewhere that shows speed/gear. That should answer questions. Running the 5spd with the 3.63 would just put a damper on acceleration numbers- you'd still be able to get the car rolling. Definitely feasible given your commute if you can stand a slower car, but IMO with boost it's not a big deal.
#49
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![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I need to find a dealer around here for diff swapping. Can anyone explain to me why a 99 5 speed and a 3.63 is fail? Here pretty soon going to be doing a 45min commute each way on freeway alone for school and really want to lower the rpm's for highway use. Sitting at 4k in 5th now at about 80. Would love a 6spd but not in the budget, yet. Or would the 5spd w/3.63 make 1st gear tall as hell?
EDIT: Also is there a chart anywhere with what fits, ratios, and what cars they come from with years? Been searching but apparently my google skill need updating
EDIT: Also is there a chart anywhere with what fits, ratios, and what cars they come from with years? Been searching but apparently my google skill need updating
Johnwag and I are building them now, maybe you could send your pumpkin to us. Oh and by "Johnwag and I" I mean "john builds them while I drink and phonewhore".
#50
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I don't doubt that (specifically the spread on 2 & 3 - see attached), but his concern seems to be the rpm (or enduring it) on a long commute. That gear will definitely change the rpm in fifth at his speed. The other (preferred) option is swap in the rx7 5th gear- but I have no idea the cost difference.
Last edited by m2cupcar; 08-10-2011 at 09:33 AM.
#56
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Guess I'll be stock pilling drivetrain parts in the garage. By building them you guys just need a carrier and the gear and you do the work. I'm down, don't trust myself enough to set the lash. Need to sell my 97 so I can afford to be baller. Used 6spd and new r&p here I come. Also curious why the tachometer is slow? Just always reads a percentage low or just lags behind on rev. Any cheap fix? It seams like no car has an accurate tachometer. Guess my question is should a autometer tach possibly solve it or is the tachometer pickup just scetchy. Or is it just the nature of the beast
#57
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Guess I'll be stock pilling drivetrain parts in the garage. By building them you guys just need a carrier and the gear and you do the work. I'm down, don't trust myself enough to set the lash. Need to sell my 97 so I can afford to be baller. Used 6spd and new r&p here I come. Also curious why the tachometer is slow? Just always reads a percentage low or just lags behind on rev. Any cheap fix? It seams like no car has an accurate tachometer. Guess my question is should a autometer tach possibly solve it or is the tachometer pickup just scetchy. Or is it just the nature of the beast
I'm guessing on my tach, fuel cut will be showing somewhere around 8k, because it's rather optimistic.
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