stage 2 or stage 3

ONLY for ADVANCED technical discussion about the 240sx!
big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

im in need of a new clutch and i want to put a chromoly flywheel but dont know what clutch to get. it is a ka24e it has catback will soon have headers cold air and possibly a cam. i was wondering if stage 3 is needed or would a stage 2 be enough. it would mostly be a dd with a little racing every once and a while. any and all help would be appreciated.


compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

When I choose a clutch I don't go off of ”stages”. For example your car is mainly a dd. My first recommendation is an organic disc. an ACT organic is a very heavy duty organic material than can take a beating, but still be very drivable. Second thing is how much hp you are running. With the setup that you have may be 170-180 hp so a stage 1 pressure plate should be more than enough. The only other thing to consider is if you do dd the car, I would stay away from unsprung clutch discs if you are in a lot of stop and go or stop sign to stop sign. Also be aware that the lighter the flywheel, the higher the rpm has to be to get your car going. On my sentra I have an 8 lb flywheel and have to really jeep the rpms up there to get going. Lightweight isn't always a good thing.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

the flywheels ve found are about 11.5 lbs would this be considered too light?

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

That's what my sr has and I like it.... Its like right in the middle.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

im looking for a clutch that will work but not in the really expensive but i dont want to be cheap either

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

http://www.f1clutch.com/product.html?id ... 240sx-1993
I, don't know id they make one for a sohc (is it the same?idk) but this setup seams prefect for you down to the flywheel, usage,hp,torque..... Everything. Shoot even price!!!

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

theres a similar kit on ebay for a little bit less just the flywheel is machined different so i dont know if it means anything good or bad. what do you think? do you know of anywhere that has sohc parts?

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

Idk about where to get sohc parts..... I haven't had a single slammer for like 10 years. If its f1, they started out as ebay only (just like ssautochrome) and proved to be a good product and now has there own web sight. What ebay kit are you looking at? If it says 89-94 than your fine.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

should i replace the crank bolts too? idk how many times they have been off and i dont want to risk it. so how will a 11.5 lb flywheel change the driveability and performance.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

Just to lead you in the right path, I'm going to say yes.... Replace them. (however I have reused them multiple times). You will have to rev your engine a little higher (not much) to get going but gain top end. Also a lighter flywheel, its easier to ”fall out” of a drift for some people.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

well im not looking to drift right now so it will take me a little more to get going than normal. what clutch would you reccomend if i decided to go with a lightly boosted turbo kit?

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

I run ACT because you can still run a, drivable disc, but there pressure plates have the most clamping force. I run the act ceramic sprung hub, with the heavy duty pressure plate, and nismo slave and am, around 400whp and is very drivable for being able to hold that much power.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

what did that set u back

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

A little less the 400 if I remember right. It would have been less but the pressure plate made the pedal feal, very very stiff. The nismo slave cylinder solved that.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

My flywheel was extra, but was replaced way before the clutch.

airmax2011
Posts: 11
Joined: Tue Feb 07, 2012 7:00 pm
Car: BNW

Post

should i replace the crank bolts too?

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

The fsm says to. But me personally, id reuse them.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

where did you get the nismo parts from

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

West covina nissan.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

my local dealer should have those parts on hand or ordered right? i just dont want to be doing this twice also ive heard that grinding my cam can increase performance but i dont understand how removing material would make more power. if thats all i have to do then i can have my extra cam ground and just buy fresh bearings for the cam right

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

Yeah, nissan carries nismo. Not all dealers are the same though. A cam ”grind” is welding up the cam lobes and scientifically grinding them down with a different profile. Also there are no bearings for the cams.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

can a good machine shop grind my can and if so what should i grind it to being its stock. i dont want to go to crazy

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

I would go like, 256 duration and depending on if you upgrade your springs would go to 11.5mm lift. I would do your homework on something like this though, because there are aloe of places that claim they know what they are doing when they don't.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

would it be safer to find one online and find one. and im not look to go too crazy right now so something that a stock head can handle.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

That's what I would recommend. I, was kinda wondering why you would want to do a cam grind, when there are many companies that make cams with plenty of testing and back to back dyno results. I would recommend jwt or tomei. In my opinion, the next commons out there for cams.

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

i will look into those and that clutch kit you showed me that doesnt look to be too cheep? i mean i dont want to spend 1000s but i want it to be quality.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

You've got to pay for quality. Lol

big monkey racing
Posts: 168
Joined: Tue Nov 06, 2007 3:38 pm
Car: 1990 240sx

Post

true but my drive is about 15 miles twice a day with half freeway and half street. i do drive agressively sometimes but mostly i just drive. will the lightweight flywheel still be good or should i just machine my stock one?

User avatar
moso
Posts: 801
Joined: Sat Jul 04, 2009 5:14 pm
Car: 89 240sx ka24de 5spd
90 240sx ka24de RIP

Post

I daily my light weight flywheel and it gives me no troubles. At cruising speeds you cant even tell the difference. When you start from a dead stop you can tell, and when the motor is free revving, or falling from high rpms. Then you can tell. I enjoy my lightweight (fidanza) although i still run an oem clutch (going soon).


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