which non-rx7 transmissions "bolt up" relatively easy?
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which non-rx7 transmissions "bolt up" relatively easy?
I ask cause the time has come to change out the gearing for my '87 n/a sport streetport to eek out more power to the wheels. I've heard about the miata and six-speed swaps - what about from mazda trucks? how bout ford trannies?
I considered a 6-speed, but nixed the idea in favor of the more streetable 5-speed. I'd prolly ditch the 5-speed for a 4-speed overdrive if avail. I'm definitely NOT interested in swapping in a big V-8 tranny like the T-5 as I consider it overkill / too heavy for a n/a rx7.
post what you know and what you're currently using. Feel free to include your diff ratios and where they're from too. If you've got turbo please state that too.
thanks ~rich
I considered a 6-speed, but nixed the idea in favor of the more streetable 5-speed. I'd prolly ditch the 5-speed for a 4-speed overdrive if avail. I'm definitely NOT interested in swapping in a big V-8 tranny like the T-5 as I consider it overkill / too heavy for a n/a rx7.
post what you know and what you're currently using. Feel free to include your diff ratios and where they're from too. If you've got turbo please state that too.
thanks ~rich
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Originally Posted by Karack
you'd be better off getting some lightweight 15's and tuning tire hieght to get more torque, keep in mind you will lose top end speed and be shifting slightly quicker.
for every pro there is a con, you don't just get more power from changing gears.
for every pro there is a con, you don't just get more power from changing gears.
I'm hoping to match gearing for a powerband that's 4.5k+
whatchu running Karack?
~rich
#4
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well...with a streetport you are probably seeing a nice sweet spot in your revs at ~ 5,000-6,500??
why not go with an RX-8 6speed, with the slightly closer ratios you will be in that sweet spot more so than now...plus it will bolt to the motor no sweat - just need a custom driveshaft...also you WILL hear of guys burning those trannies out but thats with a TII, ith you /A stretport you are probably only near or MAYBE at the level of a stock renesis so you'll be fine durability wise...
I am running a stock TII trans in my TII...
why not go with an RX-8 6speed, with the slightly closer ratios you will be in that sweet spot more so than now...plus it will bolt to the motor no sweat - just need a custom driveshaft...also you WILL hear of guys burning those trannies out but thats with a TII, ith you /A stretport you are probably only near or MAYBE at the level of a stock renesis so you'll be fine durability wise...
I am running a stock TII trans in my TII...
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Originally Posted by classicauto
well...with a streetport you are probably seeing a nice sweet spot in your revs at ~ 5,000-6,500??
why not go with an RX-8 6speed, with the slightly closer ratios you will be in that sweet spot more so than now..
why not go with an RX-8 6speed, with the slightly closer ratios you will be in that sweet spot more so than now..
~rich
#6
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I ask cause the time has come to change out the gearing for my '87 n/a sport streetport to eek out more power to the wheels. I've heard about the miata and six-speed swaps - what about from mazda trucks? how bout ford trannies?
So, why don't you look at the standard R type tranny???
Last edited by Icemark; 04-06-06 at 01:14 PM.
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miata tranny goes in without too much difficulty, see my thread for details. it does not give more power, as Karack said, but there is a noticable difference in acceleration and gearing.
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just found something about a borg-warner super t-10...lightweight aluminum 4 speed with nickel gears that came in a variety of gear ratios used during the 70's. anyone have any knowledge of these being used on a rotary? ~rich
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Originally Posted by matts86fc3s
a mazda miata uses the same transmission thats in the rx7. it will bolt up fine. early to mid 90's model year
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