3.3 Final drive? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Manji · 12-29-2014, 05:26 AM

Anyone know where to find a final drive with a ratio around 3.3?

I've checked with Toyota here and they don't have an oem replacement.
The closest they had is a 3.727, which I bought. But it's still not where I want my revs to be.

Thanks

cdrazic93 · 12-29-2014, 05:42 AM

Just short of stalling the engine in 6th or having gobs of power enough to break the transmission anyway; why?

Manji · 12-29-2014, 05:48 AM

Quote:

Originally Posted by cdrazic93

Just short of stalling the engine in 6th or having gobs of power enough to break the transmission anyway; why?

Neither of those things are remotely true.

I'm not using the fa20.

SomeoneWhoIsntMe · 12-29-2014, 06:41 AM

trying to figure out gears for a V160? ha.

98-00 SC400 or GS400, 02-05 SC430

SomeoneWhoIsntMe · 12-29-2014, 07:06 AM

that's for USDM vehicles at least, I have no idea if it's the same in straya. you could use toyodiy to check I suppose.

and that's a 3.266:1 FD

Manji · 12-29-2014, 07:10 AM

Quote:

Originally Posted by SomeoneWhoIsntMe

that's for USDM vehicles at least, I have no idea if it's the same in straya. you could use toyodiy to check I suppose.

and that's a 3.266:1 FD

Yea thanks dude. With what you gave I was able to google some good info.

http://www.totalstreetcar.com/showth...erential-Info!

350matt · 12-29-2014, 12:20 PM

how about an LS400 diff?

they're 3.266:1

cdrazic93 · 12-29-2014, 05:20 PM

Quote:

Originally Posted by Manji

Neither of those things are remotely true.

I'm not using the fa20.

Good thing I was being sarcastic....but ok. So that reserves for a 2J. Have you looked at old Mk III diffs?

Manji · 12-29-2014, 05:28 PM

Quote:

Originally Posted by cdrazic93

Good thing I was being sarcastic....but ok. So that reserves for a 2J. Have you looked at old Mk III diffs?

We need a sarcasm font

TylerLieberman · 12-30-2014, 10:42 AM

Even with the 1UZ swap, that seems like a really odd final drive choice for what I imagine you'd be doing with the car.

Any reason in particular for wanting longer gears? You can pm me if you want.

Manji · 12-30-2014, 05:55 PM

Quote:

Originally Posted by TylerLieberman

Even with the 1UZ swap, that seems like a really odd final drive choice for what I imagine you'd be doing with the car.

Any reason in particular for wanting longer gears? You can pm me if you want.

It's not like it ruins the car. Alot of people on this forum this changing final drives increases or decreases horsepower, which is retarded.

Remember
1UZ has more than twice the torque of fa20, everywhere, including off idle.
It's usually found in cars 500kg heavier.
It won't need a typical 1st gear, one so tall that it's almost like a short second, won't bother the motor at all.
I also don't want the car to be screaming at 100km/h.

My current daily is a Audi S4. same size motor, car much heavier than gt86. At 100km/h, top gear revs 1750rpm. It holds it nicely and cruises. If I force it into 5th at the same speed, its more like 2400-2500. Its much nicer at the lower revs. So that gives me a target.

A 3.727 FD (which I have) puts my 100km/h top gear cruise at 2500rpm, which is too high.
A 3.266 FD puts my cruise at the same point more around 2150rpm.

BUT, I also don't want to move all the gearing just to drop ~300rpm at 100km/h, if it makes the car sluggish (which I still dont think it will)

I think the difference between the 3.266 and 3.727 for a V8 conversion, is like comparing a 4.1 and 4.5 with an fa20. I had my 4.5 in for a year, and yes it did rev too high at 100km/h but it was better everywhere else so I enjoyed it.

Ultimately, its another one of those things that you can sit and obsess over, but you need to try it and see how it feels .

So I'm going to try the 3.727 first, and know that there are 3.266 options out there.

carbonBLUE · 12-31-2014, 02:12 AM

Quote:

Originally Posted by Manji

Anyone know where to find a final drive with a ratio around 3.3?

I've checked with Toyota here and they don't have an oem replacement.
The closest they had is a 3.727, which I bought. But it's still not where I want my revs to be.

Thanks

Close gear ratio set for the manual and a 3.727 final drive should be a great compromise. Close ratio gear set makes 1st and 2nd taller and tidy up the rest of the gears 3-6 to compliment.

Manji · 12-31-2014, 04:49 AM

Quote:

Originally Posted by carbonBLUE

Close gear ratio set for the manual and a 3.727 final drive should be a great compromise. Close ratio gear set makes 1st and 2nd taller and tidy up the rest of the gears 3-6 to compliment.

Read thread before posting,

Forum 101

carbonBLUE · 12-31-2014, 09:58 PM

Quote:

Originally Posted by Manji

Read thread before posting,

Forum 101

well it would be good to state that you are using a different transmission or not.

Being a **** 101

12-29-2014, 05:26 AM	#1
Manji Toyotas don't have boxers Join Date: Jun 2014 Drives: GTV86, ISF, TE27 Location: NZ Posts: 212 Thanks: 148 Thanked 511 Times in 146 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	3.3 Final drive? Anyone know where to find a final drive with a ratio around 3.3? I've checked with Toyota here and they don't have an oem replacement. The closest they had is a 3.727, which I bought. But it's still not where I want my revs to be. Thanks __________________ Toyota GTV86 - Lexus V8 swapped GT86

12-29-2014, 05:42 AM	#2
cdrazic93 Junior Join Date: Aug 2013 Drives: a car Location: Probably at school Posts: 4,341 Thanks: 3,184 Thanked 2,512 Times in 1,502 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	Just short of stalling the engine in 6th or having gobs of power enough to break the transmission anyway; why? __________________ "Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh

12-29-2014, 06:41 AM	#4
SomeoneWhoIsntMe Senior Member Join Date: May 2014 Drives: 2013 Subaru BRZ Location: Pontiac, MI Posts: 313 Thanks: 187 Thanked 196 Times in 101 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	trying to figure out gears for a V160? ha. 98-00 SC400 or GS400, 02-05 SC430 __________________ 1jz salvaged brz build thread brought to you by visconti tuning --> Pipe dreams and poor life choices

12-29-2014, 07:06 AM	#5
SomeoneWhoIsntMe Senior Member Join Date: May 2014 Drives: 2013 Subaru BRZ Location: Pontiac, MI Posts: 313 Thanks: 187 Thanked 196 Times in 101 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	that's for USDM vehicles at least, I have no idea if it's the same in straya. you could use toyodiy to check I suppose. and that's a 3.266:1 FD __________________ 1jz salvaged brz build thread brought to you by visconti tuning --> Pipe dreams and poor life choices

12-30-2014, 10:42 AM	#10
TylerLieberman Senior Member Join Date: Dec 2011 Drives: '24 GR86 Location: Arizona Posts: 3,675 Thanks: 655 Thanked 3,342 Times in 1,576 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	Even with the 1UZ swap, that seems like a really odd final drive choice for what I imagine you'd be doing with the car. Any reason in particular for wanting longer gears? You can pm me if you want. __________________ Old 2013 FRS Build Thread (SOLD) Hakone 86 GR Build Thread (SOLD)

12-29-2014, 12:20 PM	#7
350matt Senior Member Join Date: Jul 2013 Drives: toyota mr2/ Toyota GT86 Location: UK Posts: 438 Thanks: 3 Thanked 140 Times in 92 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	how about an LS400 diff? they're 3.266:1

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