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04-28-2011, 03:28 AM
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#11
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Full Access Member
Join Date: Sep 2010
Location: Fredericksburg, Va
Age: 44
Posts: 785
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Well if I can remember it's not all NA 89-90 RX7's the 4.30 with LSD was only in the GTUs not the GTU or any other NA model. If you got your hands on the whole differential just swap it, buying the ring & pinion is not that hard if you are mechanically inclined. I'll see if I can find a write up on this for you. Also Mazdatrix sells a 4.77 & 5.12 ring & pinion set if the car is not going to be street driven all that much & top speeds are of no concern. Would be great for drag racing.
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04-28-2011, 11:10 PM
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#12
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Full Access Member
Join Date: Mar 2011
Location: carlisile PA
Age: 30
Posts: 145
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can I use my lsd with a 89-90 ring and pinion gear cos I dont want to use the viscaus lsd they use or are there any 89-92 that use a 4.30 and a clutch type lsd
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04-28-2011, 11:31 PM
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#13
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Join Date: Sep 2010
Location: Fredericksburg, Va
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Posts: 785
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You can use the ring & pinion.
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Supercharged or Turbocharged, Boost is Boost
Big Body on 335's!!!!!
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04-29-2011, 01:49 AM
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#14
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Full Access Member
Join Date: Mar 2011
Location: carlisile PA
Age: 30
Posts: 145
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awsom ill have to find an 89-90 diff.
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04-29-2011, 04:01 AM
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#15
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Full Access Member
Join Date: Sep 2010
Location: Fredericksburg, Va
Age: 44
Posts: 785
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Make sure it's a GTUs to get the 4.30 ratio.
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Supercharged or Turbocharged, Boost is Boost
Big Body on 335's!!!!!
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04-29-2011, 04:05 AM
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#16
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Full Access Member
Join Date: Mar 2011
Location: carlisile PA
Age: 30
Posts: 145
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are gtus the only one with the 4.30
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I wish I was drifting right now!
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04-29-2011, 04:31 AM
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#17
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Join Date: Sep 2010
Location: Fredericksburg, Va
Age: 44
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As far as I remember yes only the GTUs not the GTU or any other model. I think all the rest are 4.10 ratio unless they were automatics & they have 3.90 ratio
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Supercharged or Turbocharged, Boost is Boost
Big Body on 335's!!!!!
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04-30-2011, 02:33 AM
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#18
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Join Date: Mar 2011
Location: carlisile PA
Age: 30
Posts: 145
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a 3.90 sounds like it would have relly good exelleration will that work in my car
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04-30-2011, 05:14 AM
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#19
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Join Date: Sep 2010
Location: Fredericksburg, Va
Age: 44
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3.90 ratio is working in the wrong direction if you are looking for acceleration. Higher the ratio the quicker the acceleration & lower top speed. The lower the ratio higher top speeds but slower acceleration. The 4.10 that you have is better then the 3.90 for acceleration & the 4.30, 4.77 & 5.12 ect are better over the 4.10's for acceleration.
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__________________
Supercharged or Turbocharged, Boost is Boost
Big Body on 335's!!!!!
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04-30-2011, 07:06 PM
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#20
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Full Access Member
Join Date: Mar 2011
Location: carlisile PA
Age: 30
Posts: 145
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o does 3.90 mean 3.9 . I gess ill just stick with the 4.30 then will I see a big increas in acceleration
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I wish I was drifting right now!
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