4.08 Frontier gear swap

jnaut · 10-05-2011, 11:04 PM

Aggie you have a pm

One_Quick_Z · 10-11-2011, 01:03 AM

Anyone do this to the 7AT yet? I really havent seen anyting about it with the auto tranny...

DAN

oreoleo · 10-11-2011, 01:45 AM

Im considering shipping my diff and gears to a specialist - since i have been unable to find someone good around philadelphia. any suggestions around the east coast?

gbrettin · 10-12-2011, 04:36 PM

I'm interested in doing this on my 7AT too. Information on that would be helpful.

THanks

T_K · 10-12-2011, 09:26 PM

Quote:

Originally Posted by gbrettin

I'm interested in doing this on my 7AT too. Information on that would be helpful.

THanks

7AT
4.924
3.194
2.043
1.412
1.000
0.862
0.771
3.357 (Final Drive)

6MT
3.794
2.324
1.624
1.271
1.000
0.794
3.692 (Final Drive)

Multiply gears by FD.

7AT
16.530
10.722
6.859
4.740
3.357
2.894
2.588

6MT
14.007
8.580
5.996
4.693
3.692
2.931

6MT (w/ 4.083 FD)
15.491
9.562
6.631
5.189
4.083
3.241

Now look at 7AT vs 6MT w/4.083:
7AT 6MT
16.530 15.491
10.722 9.562
6.859 6.631
4.740 5.189
3.357 4.083
2.894 3.241
2.588

The first 3 gears in a 7AT w/ OEM FD is geared more aggressively than a 6MT even with a 4.083 gear. The top 3 gears favor the 6MT, even without a final drive, the gears are closer. Up to 3rd gear the numerical values favor the 7AT, but the 6MT spans the 4-6 in what the 7AT spans with just 4-5.

Dustin@Z1 · 10-12-2011, 09:36 PM

Quote:

Originally Posted by AggieAv8r

Actually it doesn't - you have to order both kits from them and pay way too much for them.

I got everything needed for $660 shipped. Buy from them and you'll pay $900+ with shipping.

I will look into our pricing. I attempt to keep our prices as competitive as possible. Thanks for the heads up though. I know it may not benefit you directly, but any comments about this and future price concerns. Please feel free to shoot me a PM, I am always willing to double check prices on our website (bc they do change from time to time) and will work to the best to my ability to price match whenever possible.

b1adesofcha0s · 10-12-2011, 09:38 PM

Quote:

Originally Posted by One_Quick_Z

Anyone do this to the 7AT yet? I really havent seen anyting about it with the auto tranny...

DAN

Z_eliminator has it done on a 7AT

Methodical4u · 10-12-2011, 10:01 PM

so for those with the M/T does the sychro rev match still work the same?

esfourteen · 10-12-2011, 10:14 PM

Quote:

Originally Posted by Methodical4u

so for those with the M/T does the sychro rev match still work the same?

if you bothered to read or search the thread you would know that SRM is off by a few hundred RPM as the system is pre-calculated with the factory final drive. With the stock clutch its not very noticeable at all and you wont have any problems*, with a stiffer aftermarket clutch you will likely be so annoyed that you disable it.

*the one issue is going over ~130MPH will cause SRM warning's to appear and the system will disable itself until you turn off the car.

Methodical4u · 10-12-2011, 10:37 PM

Quote:

Originally Posted by esfourteen

if you bothered to read or search the thread you would know that SRM is off by a few hundred RPM as the system is pre-calculated with the factory final drive. With the stock clutch its not very noticeable at all and you wont have any problems*, with a stiffer aftermarket clutch you will likely be so annoyed that you disable it.

*the one issue is going over ~130MPH will cause SRM warning's to appear and the system will disable itself until you turn off the car.

well, I didn't bother to search through the forum... thank you for the answer however.

b1adesofcha0s · 10-12-2011, 10:37 PM

Quote:

Originally Posted by Methodical4u

well, I didn't bother to search through the forum... thank you for the answer however.

Actually it was in the earlier part of this thread....

Methodical4u · 10-12-2011, 11:36 PM

Quote:

Originally Posted by b1adesofcha0s

Actually it was in the earlier part of this thread....

I had just seen on a forum before that it affected the SRM, so I didn't even bother to consider it as a mod.

B.A.Q · 10-13-2011, 05:50 AM

Quote:

Originally Posted by Methodical4u

I had just seen on a forum before that it affected the SRM, so I didn't even bother to consider it as a mod.

not with a lot as I read before. it's is the most noticeable mod for an NA though

oro · 10-13-2011, 11:02 AM

Quote:

Originally Posted by B.A.Q

not with a lot as I read before. it's is the most noticeable mod for an NA though

Little OT here BAQ but how is your experience coupling the Quaife with the 4.08's?

jdonadio · 10-22-2011, 02:59 PM

Has anyone does this on an AT, and where can you find them?

10-05-2011, 11:04 PM	#106 (permalink)
jnaut A True Z Fanatic Join Date: Dec 2009 Location: wpb, fl Posts: 1,146 Drives: 09 370z Rep Power: 18	Aggie you have a pm __________________ Best 1/4 mile 12.24 Best mph 114.5_______

10-11-2011, 01:03 AM	#107 (permalink)
One_Quick_Z A True Z Fanatic Join Date: May 2009 Location: Seneca Il Posts: 1,374 Drives: 10 Civic EX Sedan Rep Power: 219	Anyone do this to the 7AT yet? I really havent seen anyting about it with the auto tranny... DAN __________________ -My BRZ with exhaust will decimate all if we overnight parts from Japan- 10 Civic EX Sedan- Current Daily

10-11-2011, 01:45 AM	#108 (permalink)
oreoleo Base Member Join Date: Jan 2010 Location: Philadelphia PA Posts: 54 Drives: 09 Infiniti G37S 6MT Rep Power: 15	Im considering shipping my diff and gears to a specialist - since i have been unable to find someone good around philadelphia. any suggestions around the east coast? __________________ '09 6mtS OB Coupe\|KW V3\|SPC\|Stillen 3G\|Invidia Gemini CB+HFC\|Nismo S/S\|Hotchkis

10-22-2011, 02:59 PM	#120 (permalink)
jdonadio Base Member Join Date: Feb 2011 Location: arizona Posts: 6 Drives: 370z Rep Power: 14	4.08 gears for AT Has anyone does this on an AT, and where can you find them?

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10-12-2011, 04:36 PM	#109 (permalink)
gbrettin A True Z Fanatic Join Date: Oct 2010 Location: Portage, MI Posts: 2,284 Drives: Tricycle Rep Power: 589151	I'm interested in doing this on my 7AT too. Information on that would be helpful. THanks

10-12-2011, 10:01 PM	#113 (permalink)
Methodical4u A True Z Fanatic Join Date: Jun 2011 Location: Maryland Posts: 1,393 Drives: 11 370 6mt pw w/sp Rep Power: 16	so for those with the M/T does the sychro rev match still work the same?