4.36 r&p and high hp? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

storey · 12-06-2007, 11:29 PM

alot of people seem to really like the 4.36 r&p and i am considering replacing my 3.9(j30 diff) with the 4.36, but i am not sure if those gears will be to high(numarically) for my setup. my s13 is currently at 404 whp/348tq and is used mainly for steet driving with a little bit of drag strip and road course driving(basically an allround setup).

will the 4.36 be to high and just cause traction issues(doing more harm than good)?

any opinions form people running 4.36 r&p with ~350hp would be good too.

current rear tires: sumatumo(sp?) hrzII's 245/40/16, however i am looking at going to a 17 inch wheels with azeni rt-615 soon.

thanks,

aaron

EAT Motorsports · 12-06-2007, 11:41 PM

i am running the 4.36, i dont have any problems with it running 255s in the back.. but i do have the boost tuned for speed for better traction...

Dousan_PG · 12-06-2007, 11:42 PM

its the bestest ever!
i only do 350 rwhp
and the 4.3 is the jaaaaaam

i do drifting
but it feels superb
i wouldnt mind trying 4.6 too

-rip it up s13- · 12-07-2007, 12:58 PM

im runnin that with summitomo 275/45/17 and its awesome!!! great acceleration

steve shadows · 12-07-2007, 02:59 PM

4.36 isnt that crazy high at all.

I am running it and can still hit about 130+ in 4th gear.

It's nice for exit accelerations in 2nd. although kind of drift happy with 400whp

storey · 12-07-2007, 05:37 PM

sounds good then, i bought a diff with 4.36 gears. i use a greddy electronic boost controler so i have a 12psi (~320whp) and 18psi(400whp) settings. i think i am going to get the remote switch so i can easily switch between the low boost setting for first and second and high boost for third and up.

i think this should work well.
http://projectnissan.com/shopping/pc...&idproduct=261

thanks for the replies.

tougefactory · 12-07-2007, 09:42 PM

This applys for drifting and circuit, def not for drag.

Main reason why you should consider doing 4.3 or 4.6 swap is your turbo and powerband. I would also consider you skill level as well, and the speeds at the track you goto.

For the guys with bigger turbo making 350+ hp, 4.3 will keep your revs in the sweet spot when you shift between 2nd, 3rd and 4th gear. Your 1st gear will be useless with 4.3 and 4.6. For the guys drifting in 3rd and 4th gear will notice a big difference.

If you have a t28, gt-ss, anything making less than 320hp, keep your stock final gear. You won't benefit from it.

12-06-2007, 11:29 PM	#1
storey Join Date: Dec 2006 Location: melborne, Fl Age: 43 Posts: 39 Trader Rating: (2) Feedback Score: 2 reviews	4.36 r&p and high hp? alot of people seem to really like the 4.36 r&p and i am considering replacing my 3.9(j30 diff) with the 4.36, but i am not sure if those gears will be to high(numarically) for my setup. my s13 is currently at 404 whp/348tq and is used mainly for steet driving with a little bit of drag strip and road course driving(basically an allround setup). will the 4.36 be to high and just cause traction issues(doing more harm than good)? any opinions form people running 4.36 r&p with ~350hp would be good too. current rear tires: sumatumo(sp?) hrzII's 245/40/16, however i am looking at going to a 17 inch wheels with azeni rt-615 soon. thanks, aaron __________________ http://www.cardomain.com/ride/676406

12-06-2007, 11:41 PM	#2
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	i am running the 4.36, i dont have any problems with it running 255s in the back.. but i do have the boost tuned for speed for better traction... __________________

12-06-2007, 11:42 PM	#3
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	its the bestest ever! i only do 350 rwhp and the 4.3 is the jaaaaaam i do drifting but it feels superb i wouldnt mind trying 4.6 too __________________ Aaron Pink GodziRa www.geocities.com/pink_godzira

12-07-2007, 12:58 PM	#4
-rip it up s13- Leaky Injector Join Date: Nov 2007 Location: colorado Age: 35 Posts: 59 Trader Rating: (0) Feedback Score: 0 reviews	im runnin that with summitomo 275/45/17 and its awesome!!! great acceleration __________________ im a noob.. but i love drifting!!

12-07-2007, 02:59 PM	#5
steve shadows Post Whore! Join Date: Aug 2003 Location: LA and OC Posts: 8,202 Trader Rating: (5) Feedback Score: 5 reviews	4.36 isnt that crazy high at all. I am running it and can still hit about 130+ in 4th gear. It's nice for exit accelerations in 2nd. although kind of drift happy with 400whp __________________ Like Me on FaceBook !

12-07-2007, 05:37 PM	#6
storey Join Date: Dec 2006 Location: melborne, Fl Age: 43 Posts: 39 Trader Rating: (2) Feedback Score: 2 reviews	sounds good then, i bought a diff with 4.36 gears. i use a greddy electronic boost controler so i have a 12psi (~320whp) and 18psi(400whp) settings. i think i am going to get the remote switch so i can easily switch between the low boost setting for first and second and high boost for third and up. i think this should work well. http://projectnissan.com/shopping/pc...&idproduct=261 thanks for the replies. __________________ http://www.cardomain.com/ride/676406 Last edited by storey; 12-07-2007 at 10:36 PM..

12-07-2007, 09:42 PM	#7
tougefactory Zilvia.net Advertiser Join Date: Oct 2003 Location: Chicago, IL Posts: 1,511 Trader Rating: (27) Feedback Score: 27 reviews	This applys for drifting and circuit, def not for drag. Main reason why you should consider doing 4.3 or 4.6 swap is your turbo and powerband. I would also consider you skill level as well, and the speeds at the track you goto. For the guys with bigger turbo making 350+ hp, 4.3 will keep your revs in the sweet spot when you shift between 2nd, 3rd and 4th gear. Your 1st gear will be useless with 4.3 and 4.6. For the guys drifting in 3rd and 4th gear will notice a big difference. If you have a t28, gt-ss, anything making less than 320hp, keep your stock final gear. You won't benefit from it.