Diff ratios

[suprra_girl]

hehe kool
i've got a 7mgte and planning to prove to the world that we can do it too lol
i do mid 13's at the mo but that was on a bhg engine... have fresh rebuild and got 278rwhp now which is about 30rwhp more than what i had before on 5psi less

the r154 seems to have very different ratios than the w58... i think if you got the jz diff and gearbox your ratios would sort themselves out... but i think first get an r154 and see what your ratios are like... if they're still not suitable try changing the diff

what made you go 1jz?

Something different... Was just more accessable at the time. I know you can get some serious power out of a 7mgte. I have a magazine with one with 565Kw(730Hp) the the wheels! The plates on it was BLCJET. if you do a search on it you might find it. it's pretty shit hot though. good for nines they reckon.

[suprra_girl]

*drools*
sebastians 7mgte
that is total drool material hehe
yea i got that fast fours mag too... i plan to annialiate his power tho hehe
this engine i only want 500rwhp
forged engine 800rwhp
should be interesting lol

well good luck with ur 1j and keep us posted
would like to hear ur progress

My car originally had the W58. I changed the gearbox with the engine. I assume i have the R154 gearbox in it now if thats the supra turbo gearbox. And yes, the ratios between them are a fair bit different. thats why i wanted to change the diff to counteract the change.

[suprra_girl]

ohhh sweet
that's good
can you send it here lol

they're really rare here and cost alot usually like 1500nzd or more
well check out http://www.geocities.com/MotorCity/Pit/997.../AxleCodes.html
there's the diff codes as well
so you could probly over time work out the perfect diff ratio to suit gearbox etc

Mine i got for 700 aussie dollars. aparently was around 1500 but i'd already spent an absolute fortune at this place so i got a good deal. Cheers for your help... Good luck with the killer 7M...

[MA70-1JZ]

Originally posted by Alby@Oct 7 2004, 10:36 AM
My car originally had the W58. I changed the gearbox with the engine. I assume i have the R154 gearbox in it now if thats the supra turbo gearbox. And yes, the ratios between them are a fair bit different. thats why i wanted to change the diff to counteract the change.

yep you got R154..like the shifter???

[walshy44]

i have a toyota supra 7mgte 3ltr turbo auto. but i also have a manual car the same as the auto. does any on now what the diff ratio would be in the auto and manual

[cre]

It differed based on year, not transmission. 7M-GE = 4.30:1 (all models and years), 7M-GTE = 3.91:1 for 87 - 88 models and 3.73:1 for 89 - 93 (no difference depending on transmission A/T vs M/T).