Longer 5th gear or final drive? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

alpalwal1 · 10-22-2006, 10:26 PM

I drive a lot on the freeway in my 240 and I hate the short 5th gear.... 1-4 is cool, but I really dont like being at like 3k at 67 mph.

What are the options for either longer 5th gears or differentials? I've got the 6 bolt axles and don't want to replace them if i don't have to.

!Zar! · 10-22-2006, 10:30 PM

You could get a lower ratio ring gear, but that will lower your accel speeds. For that option you are spending about $500 for a ring gear.

Other than that, all you can do is deal with it.

alpalwal1 · 10-22-2006, 10:51 PM

how about just a different diff? any ones with longer legs that the 240 that bolt in?

wootwoot · 10-22-2006, 10:56 PM

The definite easiest solution would be larger wheels/tires. The r&p is the gear part of the differential. That is what you replace, not the entire unit. Search son

R34SKYLINE · 10-23-2006, 01:33 AM

94 S13
4.083
49/12
R200(v)

96 Z32 Na
4.083
49/12
R200v

94 J30
3.916
47/12
R200v

99 Q45
3.692
48/13
R200v

96 Z32 Tt
3.692
48/13
R230v

94 Q45
3.538
46/13
R200v

bardabe · 10-25-2006, 08:44 PM

I'd ge tthe Q45

drift freaq · 10-25-2006, 08:50 PM

A Q45 pumpkin( larger driveshaft flange) will not bolt into our cars, nor a Z32TT. You would have to yank the internals and install them in your pumpkin

bardabe · 10-25-2006, 10:03 PM

Quote:

Originally Posted by drift freaq

A Q45 pumpkin( larger driveshaft flange) will not bolt into our cars, nor a Z32TT. You would have to yank the internals and install them in your pumpkin

That's what makes it fun DO IT!

alpalwal1 · 10-26-2006, 12:20 AM

alrigt... so the z32 and q45 internals will fit in my diff though?

McRussellPants · 10-26-2006, 12:25 AM

no.
R200 is different than R230, the numbers are ring gear diameters.
IIRC its possible get the whole 230 Rear end and axles into an S-chassis.
your car is gonna be so piss slow with a 3.6 gear though

drift freaq · 10-26-2006, 12:31 AM

Quote:

Originally Posted by alpalwal1

alrigt... so the z32 and q45 internals will fit in my diff though?

no thats not exactly what I meant to say. Basically any R200 internals including q45 , M30 ring but not the pinion, will fit. I added the fact that the Z32TT would not fit because its a R230v, its internals are larger. To tell you the truth most of this information is already available in the archives and faq section between a faq I wrote and 3 other ones.

**mrmephistopheles** · 10-26-2006, 12:31 AM

I'm going to be getting a S15 Spec-R MT final drive. 3.69

My goal is for high MPG via low RPM cruising.
It will not be much fun to fart around in anymore.

Looks a little something like this:

sxse240 · 10-26-2006, 08:01 AM

Try my gear ratio calculator spreadsheet.

Dousan_PG · 10-26-2006, 09:29 AM

u got one kevin?!?!

R34SKYLINE · 10-26-2006, 11:51 AM

Is there a way I could figure which gear ratio I have if I know my car gets I believe 79mph @ 3000rpm my car is automatic with a JDM 180SX VLSD and my wheel and tire size are:

18" wheels with 225/40/18

From that info could one find out what final gear ratio I have even though I got an auto tranny?

P.S. I dont have Excel just the viwer but I do have Microsoft Works Suite 2006 and I was able to open it with Microsoft Works Spreadsheet and I can make changes and it does the recalculating automatically to

.......

R34SKYLINE · 10-26-2006, 12:56 PM

I figured it out, pretty cool shit:
KA24DE A/T

KA24DE M/T

10-22-2006, 10:26 PM	#1
alpalwal1 Join Date: Oct 2005 Location: Ca Posts: 46 Trader Rating: (0) Feedback Score: 0 reviews	Longer 5th gear or final drive? I drive a lot on the freeway in my 240 and I hate the short 5th gear.... 1-4 is cool, but I really dont like being at like 3k at 67 mph. What are the options for either longer 5th gears or differentials? I've got the 6 bolt axles and don't want to replace them if i don't have to.

10-22-2006, 10:30 PM	#2
!Zar! Post Whore! Join Date: Nov 2004 Location: North Korea Posts: 14,579 Trader Rating: (27) Feedback Score: 27 reviews	You could get a lower ratio ring gear, but that will lower your accel speeds. For that option you are spending about $500 for a ring gear. Other than that, all you can do is deal with it. __________________

10-22-2006, 10:56 PM	#4
wootwoot Post Whore! Join Date: Jan 2004 Location: sarasota florida biatch Age: 39 Posts: 3,850 Trader Rating: (0) Feedback Score: 0 reviews	The definite easiest solution would be larger wheels/tires. The r&p is the gear part of the differential. That is what you replace, not the entire unit. Search son __________________ I'm from Florida so I'm probably a bit more strange than you

10-25-2006, 08:44 PM	#6
bardabe Post Whore! Join Date: Aug 2005 Location: SoCal Age: 35 Posts: 4,719 Trader Rating: (10) Rides Gallery: bardabe Feedback Score: 10 reviews	I'd ge tthe Q45 __________________ Review Thread

10-25-2006, 08:50 PM	#7
drift freaq R.I.P. Aya, always love Join Date: Nov 2001 Location: Los Feliz/Hollywood Posts: 18,564 Trader Rating: (215) Rides Gallery: drift freaq Feedback Score: 215 reviews	A Q45 pumpkin( larger driveshaft flange) will not bolt into our cars, nor a Z32TT. You would have to yank the internals and install them in your pumpkin __________________ "Having a lot of tracks on a song is like putting stickers on a car to get more horsepower" New Video https://www.youtube.com/watch?v=uebV1OnbRsw Buy my mounts! http://zilvia.net/f/sale-items/51531...ns-mounts.html http://zilvia.net/f/tech-talk/317539...e-mouts-6.html

10-22-2006, 10:51 PM	#3
alpalwal1 Join Date: Oct 2005 Location: Ca Posts: 46 Trader Rating: (0) Feedback Score: 0 reviews	how about just a different diff? any ones with longer legs that the 240 that bolt in?

10-23-2006, 01:33 AM	#5
R34SKYLINE Leaky Injector Join Date: May 2006 Location: Socal Posts: 139 Trader Rating: (0) Feedback Score: 0 reviews	94 S13 4.083 49/12 R200(v) 96 Z32 Na 4.083 49/12 R200v 94 J30 3.916 47/12 R200v 99 Q45 3.692 48/13 R200v 96 Z32 Tt 3.692 48/13 R230v 94 Q45 3.538 46/13 R200v

10-26-2006, 12:20 AM	#9
alpalwal1 Join Date: Oct 2005 Location: Ca Posts: 46 Trader Rating: (0) Feedback Score: 0 reviews	alrigt... so the z32 and q45 internals will fit in my diff though?

10-26-2006, 12:25 AM	#10
McRussellPants Nissanaholic! Join Date: Oct 2005 Location: Austin, Tx Posts: 2,168 Trader Rating: (0) Feedback Score: 0 reviews	no. R200 is different than R230, the numbers are ring gear diameters. IIRC its possible get the whole 230 Rear end and axles into an S-chassis. your car is gonna be so piss slow with a 3.6 gear though

10-26-2006, 08:01 AM	#13
sxse240 Leaky Injector Join Date: Apr 2003 Location: NM Posts: 95 Trader Rating: (1) Feedback Score: 1 reviews	Try my gear ratio calculator spreadsheet.

10-26-2006, 09:29 AM	#14
Dousan_PG Post Whore! Join Date: May 2002 Location: Orange County, California Age: 46 Posts: 16,640 Trader Rating: (23) Rides Gallery: Dousan_PG Feedback Score: 23 reviews	u got one kevin?!?! __________________ Aaron Pink GodziRa www.geocities.com/pink_godzira

10-26-2006, 11:51 AM	#15
R34SKYLINE Leaky Injector Join Date: May 2006 Location: Socal Posts: 139 Trader Rating: (0) Feedback Score: 0 reviews	Is there a way I could figure which gear ratio I have if I know my car gets I believe 79mph @ 3000rpm my car is automatic with a JDM 180SX VLSD and my wheel and tire size are: 18" wheels with 225/40/18 From that info could one find out what final gear ratio I have even though I got an auto tranny? P.S. I dont have Excel just the viwer but I do have Microsoft Works Suite 2006 and I was able to open it with Microsoft Works Spreadsheet and I can make changes and it does the recalculating automatically to ....... Last edited by R34SKYLINE; 10-26-2006 at 12:35 PM..

10-26-2006, 12:56 PM	#16
R34SKYLINE Leaky Injector Join Date: May 2006 Location: Socal Posts: 139 Trader Rating: (0) Feedback Score: 0 reviews	I figured it out, pretty cool shit: KA24DE A/T KA24DE M/T Last edited by R34SKYLINE; 10-26-2006 at 01:47 PM..