2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

anyone do this?

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Old Jul 29, 2006 | 12:36 PM
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anyone do this?

alright i the 2nd gen cars they have indepent rear end and i was wondering if you could put a soild ford 8.8 rear end in it?
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Old Jul 29, 2006 | 12:37 PM
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could but you would be losing more than you gain...
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Old Jul 29, 2006 | 12:40 PM
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Originally Posted by Karack
could but you would be losing more than you gain...
explain on that?
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Old Jul 29, 2006 | 12:40 PM
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Unless you are butchering the car by making it a drag racer and pumping 1,000 HP... I don't see the point
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Old Jul 29, 2006 | 12:41 PM
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how much can those rear ends take(mazda)?
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Old Jul 29, 2006 | 01:00 PM
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The NA can take up to around 250 whp, I think..

The TII can take upwards of 400, IIRC.
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Old Jul 29, 2006 | 01:03 PM
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hmm and i geuss if you put a better LSD in it will will handle more... i am so noob to the 2nd gens.. i now lots or the 1st gen stuff and what you can dso to then but 2nd gen stuff total noob
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Old Jul 29, 2006 | 01:14 PM
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I've seen 500hp+ drag launches on a stock S4 rear end......

they are new/rebuilt units (not old 125,000km ones) but they can take lots.

Go about it this way.....if you CAN build an engine that can trash a stock diff at the drop of a penny....THEN upgrade to a ford 9 inch.

I say 9 because you mentioned an 8.8 and the stock is 8.5 IIRC
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Old Jul 29, 2006 | 01:18 PM
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but whne the other guy said you will lose more then you gain does he mean weight?
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Old Jul 29, 2006 | 01:21 PM
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depends on your goals, independents will grip better all around over solid rear axles because the wheels work independently rather than the whole rear end torquing up as well you can run more light weight components in independent rear axles for less weight than a solid diff.

you don't see solid rear axles on sports cars today. solid rear axles may be more reliable for drag racing but as i said it depends what you are building the car for and the stock TII diffs are good to handle close to 500RWHP.
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Old Jul 29, 2006 | 01:22 PM
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oh now i get it alright now i think i am a 2nd gen guy now
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Old Jul 29, 2006 | 01:24 PM
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You can purchase a Ford 8.8 kit, From Grannys. Its about 2k, all bolt in. Im debating whether or not to get it..the stock stuff will hold but..its only a matter of time before it starts to give out.
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Old Jul 29, 2006 | 01:27 PM
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like the saying say if it anit broke dont fix it
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Old Jul 29, 2006 | 01:29 PM
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Well like mentioned..it depends on what you want to do..Im certainly not up for changing axles at the track because i snapped one..also depends on how much HP you are making too.
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Old Jul 29, 2006 | 01:33 PM
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well for me i wan tto be making 500 or more but not alot more just keeping in the 500s
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Old Jul 29, 2006 | 01:57 PM
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Good luck on your quest! It is not easy...or cheap. Trust me.
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Old Jul 29, 2006 | 02:01 PM
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3 LINK THAT BEAST!!!!!!!!!!!!!!!!!!!!!! then well go to ESB or total chaos and well get a front end kti, damn well have a prerunner soon!!!!
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Old Jul 29, 2006 | 02:25 PM
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you can do it, but you will loose stability on the street. Here in PR, are one Turbo 2 with Ford 9 bolt rear differential. The car runs 10.2 on the 1/4 mile. But the car is not for street use for that reason. Also, you need to make a custon driveshaft for that purpose.
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Old Jul 29, 2006 | 02:31 PM
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Granny's kit comes with everything

'86-'91 RX-7 TA/SA 8.8 Deluxe Package...
...Torque arm
...Torque arm rear anchor plate
...Torque arm front yoke / driveline loop
...(2) lower link front bracket assemblies
...(2) lower link rear bracket sets
...(2) lower shock adapter bushings
...watts linkage pivot assembly
...watts linkage chassis bracket set
...Mustang 8.8 rear w/ brackets attached
...choice of gear ratio
...TrackLok assembled using new clutches
...new 5 lug axles w/ studs
...new driveshaft / u-joints
......................introductory price...$1950.
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Old Jul 29, 2006 | 02:51 PM
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i wanna see that thing pushing atleast 20inches of travel in the rear and 18in the front, then enter in an open class, turbo, pshhh that thing owuld smoke the trucks
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Old Jul 29, 2006 | 03:20 PM
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500 HP is doable as long as your budget is at least $7,000. And you use an S5 block. S4 can do it but not for too long before it fails in the pin area.

Last edited by tinvestor; Jul 29, 2006 at 03:24 PM.
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