WHICH CLUTCH 4agte?

[ke_25]

Hey,

am currently putting together my new motor which is a forged blacktop turbo, and the plan is to achieve reasonable numbers, the motor has been built for in excess of 30psi, so hopefully iwll be good results, my question is regarding the clutch set up,

what are people running out there? i am running a w series box so i need the sw11 clutch plate, but i dont mind runing individually,

currently i have a sprung centre 4 puk, with a 4agze cover with basket flywheel, all has been balanced etc, but am thinking it could be worth while to upgrade now and seel what i have, the cover at the moment is a factory gze replacement as they didst do a heavy duty at the time..

whilst im doing it im looking into running a lighter flywheel also, wetehr aftermarket or blacktop im unsure yet

so any help would be appreciated, or what your runnign with what numbers etc.

[thegreatestben]

Hey Shaun -

This is what I've got in the mr2


Will/should handle the jandle

Gonna just buy an RPM kit for the turbo corolla I just bought, see how that goes. They're like $124 on staff at work

Running the smaller C series box in both cases though

[ke_25]

whode you get that thru ben? bnt?

yeah excedy do seires in racing clutches aye i was going to look into that, i can get prty much cost at BNT also so could be an option.

still doesnt help my flywheel issue tho, mine is Fkn heavy

. those clutches only suit teh 225 aw11 flywheel i believe, and all after markets are either 200 or 215.

[thegreatestben]

I just ordered an rpm1148n from another branch.
I dunno what flywheel is in the corolla though so will have to wait til I pull the box out to check.

Rory the chap that built the motor for the mr2 bought the clutch but I'd imagine you'd be able to get one for your gearbox spline.

Are you gonna use GZE size flywheel or N/a?

[ke_25]

im not sure yet. currently i have a puck clutch through work, but they ddnt do an RPM cover for it, its for the 225mm gze.

id prefer to run a larger flywheel, i have been told that the blacktop flywheels are lighter than all other 4ages, and being 20v runs the 215mm clutch. where as 16v are 200.

[thegreatestben]

I've ordered in a RPM kit: RPM1148N

OE Replacement Kit:R1148N
Dimensions:215mm X 21T X 23.8mm
Cover Assy:R850-644
Clutch Plate:R8486W
Release Bearing:GSB460

This is listed for later ae92's which is same size as ae101/111's afaik but yeah been told blacktop is the lightest factory

[ke_25]

yeah, i may need to ring and source a custom kit.
Dimensions:215mm X 21T X 23.8mm
the w seires box has a 29mm spline.

[QikStarlie]

yeh you need the 4agze clutch with the w55 box, as has the correct spline.

im using a ae92/ae101 4agze (230mm) 4.5kg jun flywheel 2250lb press plate and carbon kevlar full faced plate. car isnt going yet though

stock press plate from toyota was measured at 1600lb? from memory, maybe it was 1400lb

a 4 puck or similar in plate, in place of the full faced plate would be about as good as you'l get. without going to twinplate setups. i wouldnt go anywhere near the smaller 212mm setups, if your looking at that much power

[ke_25]

yeah, i have a clutch at the moment all brand new, its a fully balanced gze 225mm flywheel with aw11 clutch set up, non heavy duty cover though with a 4 puck sprung, but i was thinking it may not be adequate for the power im after? do you think an upgrade would be best option?

where ddid you source your flywheel from?

if im going to do teh clutch again i may aswell to the full set up and sell my balanced set up i have currently, its all new and never used so should get ok money for it.

[ChaosAD]

If you cant find a heavyduty pressure plate you can most likely get the standard one altered to increase the clamping force.

[QikStarlie]

stock was 1350lb sorry. as above, you could send your cover to autoclutch, or similar place. autoclutch done mine, was about 200 to get it the press plate modified to 2250lb. the extra clamp will help alot.

not sure what your current setup will hold. as ive mostly played with the 212mm stuff. but will probably struggle with the power you are after


got flywheel off mac at fortyone. was pretty cheap under 400. not sure if he still does them at that price though

[levinguy]

pretty sure flygt4's old car on here was running with over 200kw's atw on a modified standard pressure plate with a puk clutch. don't fork out for the money if you don't have too.

[Bazda]

None of the cluthes above will work for his 30psi +.

He needs in excess of 2500lbs to have a clutch that wont slip.
The 20v pres plates and 4agze pres plate you can get up to 2000lbs max anything over your gona have very very small movement in the pedal and most likely miss alot of gears.
The Exedy ones are weak as clamp pressure and will most likely slip after time.

Talk to Autoclutch in Auckland or give me a PM as I have sorted out with them how to get a pressure plate in excess of 3600lbs! on a 4age flywheel. Of course you wont need 3600lbs but thats what is capable out of the pressure we found. Autoclutch recommended this clamp pressure when running 500hp

[ke_25]

yeah i will get in touch. i think i will get a plate/cover made. i purchased a new flywheel today, jun from 41. i t was juts shy of 600$

[AE25]

hey bazda.. just curious, have you had any issues flogging out crank thrust bearing with such high clutch clamping pressures? i'd suppose you'd change bearings so often they don't get a chance to wear out?

[matt dunn]

I run a 212mm clutch with 440hp.

It's an autoclutch one that was made for my 300hp 1600, but so far has worked ok.

I wouldn't run a Blacktop flywheel with a good clutch,
as I would expect it to snap the pressure plate mounts off it.

[4agtepwr]

Yeah give autoclutch a bell they sorted mine out. I orginally had a gze cover that had about 1600 pound clamp and a dodgey 4 puk sprung centre and it was ok on the dyno for over 400 hp but the first big dial up at the drags with some slicks on and it was all over.
Autoclutch sorted me a 6 puk soild centre plate and modified the cover for close to 2800 pound clamp, Its great and so far has handled the abuse.
Not the most driver freindly deal but it won't be the part that lets me down at the drags.

[Bazda]

hey bazda.. just curious, have you had any issues flogging out crank thrust bearing with such high clutch clamping pressures? i'd suppose you'd change bearings so often they don't get a chance to wear out?

Used the same thrust bearings for 2 years and they looked fine.
Depends how hard you are on a clutch, when I launch I dont just drop the clutch I slip it a tiny bit or else its very harsh. Also rev matching is a much with my clamp pressure. Even up the gears when changing slowly.

[AE25]

cool good to know i was just thinking that an unaware driver that sits at the lights with foot on the clutch (super heavy clutch) would flog bearings out much faster than someone that doesn't.. so its not the gear change that puts load on thrust bearing.. but the pressure of the clutch fork pushing against a much stronger clutch diaphragm that loads the thrust bearings. so low oil pressure at idle and heavy clutch means more load on thrust bearings? thought maybe this was why evo owners have thrust bearing problems when they've got a few k's on their engine.