3.3 gear swap

LafitteZ · 02-06-2012, 11:10 PM

Anyone ever heard of or have swapped the 3.5 diff gear setup for the auto 3.3 gears? Would it be a straight swap or whould it take alot of ******** to do it?

erkthejerk73 · 02-07-2012, 10:15 AM

a few 350z guys did it to help make better boost in the lower gears if i remember correctly, are you FI?

LafitteZ · 02-07-2012, 11:24 AM

yea gtm stage 2 turbo. thats why i was thinking about it. my first gear is almost non exsistent

erkthejerk73 · 02-08-2012, 01:59 PM

it was a straight swap in the 350z, it was the auto z's FD, i think the 370z has a different pumpkin but it should all still bolt up. Contact a vendor and ask them directly.

LafitteZ · 02-08-2012, 05:05 PM

yea imma do that

LafitteZ · 02-08-2012, 05:06 PM

Quote:

Originally Posted by erkthejerk73

it was a straight swap in the 350z, it was the auto z's FD, i think the 370z has a different pumpkin but it should all still bolt up. Contact a vendor and ask them directly.

Thanks

bullitt5897 · 02-08-2012, 05:50 PM

When I was at SEMA this last fall I sat down and talked with one of OS Giken's Techs/reps. They have a whole new gear set available for the 370z for most applications. While I was talking to the rep I mentioned my concerns with FI and the current Gear ratios. He told me that for the 370z the best way to achieve what I was asking and what your looking for was to do the Auto Final Drive. he said it shouldnt take much and should be a direct swap. I say Go For it!

Nixlimited · 02-08-2012, 08:40 PM

Unfortunately, for anyone that uses the SRM, changing the gears results in hindering the SRM functionality. I have really grown to love it. After having a big turbo STI though, I know the desire for longer gears to stay in boost.

LafitteZ · 02-09-2012, 11:22 AM

Im gonna do it. Im having my tranny rebuilt because it went to **** on me and I bought a nismo diff cover because it has the fins because i boiled the oil out of the diff last track day so im gonna try this so while i have it out I might as well do the 3.3 change.

02-06-2012, 11:10 PM	#1 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	3.3 gear swap Anyone ever heard of or have swapped the 3.5 diff gear setup for the auto 3.3 gears? Would it be a straight swap or whould it take alot of ******** to do it?

02-08-2012, 05:50 PM	#7 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3682	When I was at SEMA this last fall I sat down and talked with one of OS Giken's Techs/reps. They have a whole new gear set available for the 370z for most applications. While I was talking to the rep I mentioned my concerns with FI and the current Gear ratios. He told me that for the 370z the best way to achieve what I was asking and what your looking for was to do the Auto Final Drive. he said it shouldnt take much and should be a direct swap. I say Go For it! __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

02-08-2012, 08:40 PM	#8 (permalink)
Nixlimited A True Z Fanatic Join Date: Aug 2009 Location: San Diego Posts: 1,235 Drives: 15 GT-R / 11 Prius Rep Power: 26	Unfortunately, for anyone that uses the SRM, changing the gears results in hindering the SRM functionality. I have really grown to love it. After having a big turbo STI though, I know the desire for longer gears to stay in boost. __________________ Car Sold! Pleasure being a part of the Z community. New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)

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02-07-2012, 10:15 AM	#2 (permalink)
erkthejerk73 Track Member Join Date: Mar 2011 Location: cincinnati Posts: 927 Drives: 13 F150 FX4 eb Rep Power: 15	a few 350z guys did it to help make better boost in the lower gears if i remember correctly, are you FI?

02-07-2012, 11:24 AM	#3 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	yea gtm stage 2 turbo. thats why i was thinking about it. my first gear is almost non exsistent

02-08-2012, 01:59 PM	#4 (permalink)
erkthejerk73 Track Member Join Date: Mar 2011 Location: cincinnati Posts: 927 Drives: 13 F150 FX4 eb Rep Power: 15	it was a straight swap in the 350z, it was the auto z's FD, i think the 370z has a different pumpkin but it should all still bolt up. Contact a vendor and ask them directly.

02-08-2012, 05:05 PM	#5 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	yea imma do that

02-09-2012, 11:22 AM	#9 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	Im gonna do it. Im having my tranny rebuilt because it went to **** on me and I bought a nismo diff cover because it has the fins because i boiled the oil out of the diff last track day so im gonna try this so while i have it out I might as well do the 3.3 change.