1990 Rx-7 VERT Auto4spd-> 6 speed MT.
#29
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hmm. my auto was. .........
89-92 Non-Turbo w/o LSD
The 6 speed is...
if A is < B than C is > B
I'll soon find out if i can put that fc 3rd gear in the rx8 4th. with/without major refab.
2.841 1.541 1.000 0.720
89-92 Non-Turbo w/o LSD
3.475 2.002 1.366 1.00 .697
The 6 speed is...
3.76 2.269 1.645 1.187 1.00 .843
if A is < B than C is > B
I'll soon find out if i can put that fc 3rd gear in the rx8 4th. with/without major refab.
#31
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have you driven a .697 FC? the ratio's suck, 5th gear is useless. the extra gear in the Rx8 box lets you have a gear for every corner, the Rx8 gearing is basically the competition ratio's plus a granny gear first.
#32
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I see i should have clarified my statement a bit, because i compared it to the tried-and-true TII tranny swap.
I don't see the justification for all the work needed for this swap apart from saying that you have a 6speed instead of 5.
I don't see the justification for all the work needed for this swap apart from saying that you have a 6speed instead of 5.
#33
ah the turbo II tranmission, the fansboyz wet dream.
personally i like the tall *** 1st gear. 160 ftlbs of torque isn't going to get you anywhere anytime soon, if you had say a 2.8 or 2.5 1st.
ALOT of people seem to forget how much RPM range we have to play with. I can drive my rx8 at 400 rpm in 6th gear around a parking lot, and i can hit ~33 mph in first.
heres another fun fact for five ****...
the rx7s usable rpm range is around 1.5k to 7-8k. Rx8 drivers (that I've seen) keep the engine over 3-4k at all times. and letting it dip down to 2.5k is "bad" and you're just " lugging the engine." this was said by the guy who has tuned well over 200? rx8s. mazdamaniac.
personally i like the tall *** 1st gear. 160 ftlbs of torque isn't going to get you anywhere anytime soon, if you had say a 2.8 or 2.5 1st.
ALOT of people seem to forget how much RPM range we have to play with. I can drive my rx8 at 400 rpm in 6th gear around a parking lot, and i can hit ~33 mph in first.
heres another fun fact for five ****...
the rx7s usable rpm range is around 1.5k to 7-8k. Rx8 drivers (that I've seen) keep the engine over 3-4k at all times. and letting it dip down to 2.5k is "bad" and you're just " lugging the engine." this was said by the guy who has tuned well over 200? rx8s. mazdamaniac.
#34
been doin this about twice a week all summer... i'll take some mo pics of the tranny mount next week. i still don't have a work around for the speedo... unless i pull the tranny and ATTEMPT to add the fc speedo gear... don't really caer for the speedo but an odometer would be nice. I couldn't tell you if i put 2k miles on it now or 8k. i'm guessing around 6.
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Get a GPS based Speedo..you don't have to fab any sensors on the car or the transmission.
It will work like 99.9% of the time.Unless you drive Underground(tunnels) a lot!
It will work like 99.9% of the time.Unless you drive Underground(tunnels) a lot!
#36
Is that a first gen or second gen RX8 transmission? I would love to do this. I like the transmission in my NC miata so much better than the rx7 stock NA one. The NC transmission is the second gen RX8 trans.
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