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Old 08-28-2009   #16
mcfly
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Default Re: BNR34 Getrag Into Your BNR32

ryan woon did 8's on a stock v160 though
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Old 01-05-2010   #17
Stefan_001
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Default Re: BNR34 Getrag Into Your BNR32

Bringing back old threads, mcfly where did you find those gear ratios for the R34 Getrag?
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Old 01-05-2010   #18
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Default Re: BNR34 Getrag Into Your BNR32

hey, im also wondering...

what about doing a complete R34 RB26DETT + R34 Getrag box into an R32?...

what would be required to put both in? cause it may be cost effective to buy a engine and tranny in one shot from a dealer!.. then you would get the front shafts, etc.. mcfly any list kicking around of whats needed other than the 2 big lumps?

heres what i would assume to be needed...
R34 wiring loom + Ecu
R34 front half of rear prop shaft
R32 rear half of rear prop shaft


what else?
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Old 01-05-2010   #19
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Default Re: BNR34 Getrag Into Your BNR32

lol, you obviously haven't looked into the cost from a dealer
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Old 01-05-2010   #20
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Default Re: BNR34 Getrag Into Your BNR32

What is getrag
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Old 01-06-2010   #21
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Default Re: BNR34 Getrag Into Your BNR32

Quote:
Originally Posted by Rapier46 View Post
What is getrag
Getrag Getrag

They commonly provide high-perf trannies in OEM apps...
(ie. TT Supra 6spd, R34 6spd, LSJ Cobalt 5Spd etc.)
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Old 02-17-2010   #22
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Default Re: BNR34 Getrag Into Your BNR32

Which route would you (mcfly) recommend for a transmission upgrade? I recently blew up third gear in my stock GTR transmission. I was thinking of going with the OSG 1-5 close ration set with the forged input shaft and re-inforced center plate. My car has a built 2.6 and a t04z with all the supporting mods. Im guessing im sitting around 375whp from my trap speed and 1/4mile @ 8psi.
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Old 02-17-2010   #23
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Default Re: BNR34 Getrag Into Your BNR32

Quote:
Originally Posted by mcfly View Post
ryan woon did 8's on a stock v160 though
Anyone who wants to see the capabilities of the V160 completely stock...this thing sounds like its exploding 1st-3rd.

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Old 02-18-2010   #24
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Default Re: BNR34 Getrag Into Your BNR32

Quote:
Originally Posted by Beardo View Post
375whp @ 8psi.
Nice....

I am in the same boat (not power-wise...lol) looking for a Transmission upgrade route to take.

For simplicity sake, I might just say screw it and go with an OSG Kit, like you mentioned above, but would really like to hold out for a Getrag if I can get one out of Japan that is going to be cost effective enough, with all the parts required for the swap......that's going to be the kicker - Getting one here.
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Old 02-18-2010   #25
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Default Re: BNR34 Getrag Into Your BNR32

Quote:
Originally Posted by Beardo View Post
Which route would you (mcfly) recommend for a transmission upgrade? I recently blew up third gear in my stock GTR transmission. I was thinking of going with the OSG 1-5 close ration set with the forged input shaft and re-inforced center plate. My car has a built 2.6 and a t04z with all the supporting mods. Im guessing im sitting around 375whp from my trap speed and 1/4mile @ 8psi.
What broke exactly?

Do you have a picture of the gearset. There is a chance you don't need anything more then standard but you can pick apart a failure from pictures.

Quote:
Originally Posted by Stefan_001 View Post
Bringing back old threads, mcfly where did you find those gear ratios for the R34 Getrag?
They are programed into my brain.
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Old 03-18-2010   #26
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Default Re: BNR34 Getrag Into Your BNR32

Quote:
Originally Posted by mcfly View Post
1st in the getrag is steep, gets you off the line fast.
5th is 1:1

with stock 225/50/16 you will do 182 mph in 6th, 5 speed box would do 191 in the same fashion. 8k rpm.

getrag ratios
1st 3.827
2nd 2.360
3rd 1.685
4th 1.312
5th 1.000
6th 0.793

r32/33
1st 3.214
2nd 1.925
3rd 1.302
4th 1.000
5th 0.752
How big a job was this and have you considered playing with the ratios to get a higher top end speed for the track? I have access to a r34 gearbox and my box is starting to show signs of death.
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Old 03-19-2010   #27
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Default Re: BNR34 Getrag Into Your BNR32

I never did it just drove one with it done.

The car is a blast to drive with 4.111's. Why would you want a higher top end speed exactly?
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Old 04-02-2010   #28
GT-R Glenn
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Default Re: BNR34 Getrag Into Your BNR32

Theres a really good ap called gearcalc, free download.
You can just punch in tires, final ratio, gears, rpm and it will calculate rpm drop between gears, top speed, top speed in each gear etc:

the getrac box is ok, but first gear is a bit of a waste of time, second gear is close to the os 1st...
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Old 04-13-2010   #29
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Default Re: BNR34 Getrag Into Your BNR32

thanks allot
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Old 05-03-2010   #30
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Default Re: BNR34 Getrag Into Your BNR32

Quote:
Originally Posted by GT-R Glenn View Post
the getrac box is ok, but first gear is a bit of a waste of time, second gear is close to the os 1st...


My thoughts exactly.......

with my setup that 3.9 to 1 1st gear would be retardedly low, as it is I can't make full boost in 1st because there isn't enough load on the motor.

I would actually like to have R34 gears (3.55 I think) in my car to give it more boost out of the hole and carry 3rd gear through the traps on the strip.



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