crock Posted August 5, 2014 Share Posted August 5, 2014 I'm looking at purchasing a supra thats in need of a new flywheel, and seeing as i'll be paying labour for the work for it to be fitted i feel it would be worth while upgrading, the car is currently standard power, with my aim to get use to it then quickly bpu and if all goes to plan probably single next spring ready for summer (500-600bhp) so rather than pay out twice i'm thinking solid flywheel and uprated clutch now and save me the hassle at a later date, has anyone got any thoughts on the matter, and if it doesnt seem a bad idea what kit to use, a friend of mine highly rates compotion clutches are they any good? cheers in advance mike Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 5, 2014 Share Posted August 5, 2014 I swear by Giken clutches. But whatever you buy check the availability of spares in the UK. With Giken you can get *ALL* indivudual parts separately. Quality is first rate, they don't judder and they do a big range covering all torque ratings. If a supplier rates a transmission component by BHP they are basically advertising they know sod all about their product. Quote Link to comment Share on other sites More sharing options...
crock Posted August 6, 2014 Author Share Posted August 6, 2014 cheers chris i'll look into them i seem to find the ones i've been looking at, ALOT quote a 40% increase in tourqe ect then but then also quote a bhp figure, so its the tourqe figure i'm looking for? how about the flywheel would a stock flywheel hold up or would it be something i'd be upgrading anyway at around 500bhp? cheers again sorry for the questions all a bit new to supra, this will be my first Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 6, 2014 Share Posted August 6, 2014 The stock flywheel is a dual mass unit and damps down harmonics in the gear train and engine. As far as I know there is no dual plate, triple plate, or quad plate clutches commercially made for the stock flywheel, so you are looking at single plate units, probably using a modified stock pull type cover.You need to ask your engine builder for an estimated peak torque figure and use that to choose a clutch. Do not choose anything more extreme than needed. Expect gear train and propshaft ringing if you do not use a stock type dual mass flywheel. Beware some makes that are very grabby, and others that use reconditioned covers that require you to mash the pedal into the carpet to get full clutch release, the worst ones still don't release then and need aftermarket slave cylinders. If a clutch is cheap it's probably not going to be nice to use... Quote Link to comment Share on other sites More sharing options...
Nic Posted August 6, 2014 Share Posted August 6, 2014 how about the flywheel would a stock flywheel hold up or would it be something i'd be upgrading anyway at around 500bhp? The stock flywheel should be fine. I'd personally stay with the stock dual mass flywheel, solid flywheels amplify the vibrations from the drivetrain which can make the car sound like a bag of spanners at low rpms. Quote Link to comment Share on other sites More sharing options...
crock Posted August 6, 2014 Author Share Posted August 6, 2014 (edited) The stock flywheel is a dual mass unit and damps down harmonics in the gear train and engine. As far as I know there is no dual plate, triple plate, or quad plate clutches commercially made for the stock flywheel, so you are looking at single plate units, probably using a modified stock pull type cover.You need to ask your engine builder for an estimated peak torque figure and use that to choose a clutch. Do not choose anything more extreme than needed. Expect gear train and propshaft ringing if you do not use a stock type dual mass flywheel. Beware some makes that are very grabby, and others that use reconditioned covers that require you to mash the pedal into the carpet to get full clutch release, the worst ones still don't release then and need aftermarket slave cylinders. If a clutch is cheap it's probably not going to be nice to use... The stock flywheel should be fine. I'd personally stay with the stock dual mass flywheel, solid flywheels amplify the vibrations from the drivetrain which can make the car sound like a bag of spanners at low rpms. I think I'll stay stock for now, rather than complicate things if its not needed yet, BPU should be happening relatively soon into my purchase of the supra from my understanding the stock clutch is okay, or would a uprated clutch be advisable? As far as an engine builder goes I haven't got one yet, things are just in the pipeline, I need to get my hands on the supra first, If the clutch is okay at the moment, is there any downfall with just changing the flywheel and leaving the clutch as it is, or is it beneficial to change them together, other than labour costs in case it goes again, Edited August 6, 2014 by crock (see edit history) Quote Link to comment Share on other sites More sharing options...
fastcar Posted August 6, 2014 Share Posted August 6, 2014 stock dual mass flywheel will hold 700bhp if in good condition that is. I would stay with stock clutch for now or maybe a chris Wilson uprated stock clutch Quote Link to comment Share on other sites More sharing options...
Nic Posted August 6, 2014 Share Posted August 6, 2014 I think I'll stay stock for now, rather than complicate things if its not needed yet, BPU should be happening relatively soon into my purchase of the supra from my understanding the stock clutch is okay, or would a uprated clutch be advisable? As far as an engine builder goes I haven't got one yet, things are just in the pipeline, I need to get my hands on the supra first, If the clutch is okay at the moment, is there any downfall with just changing the flywheel and leaving the clutch as it is, or is it beneficial to change them together, other than labour costs in case it goes again, The stock clutch will cope with BPU power levels. Why do you need to change the flywheel? If you're fitting a new flywheel you might as well fit a new clutch at the same time. Quote Link to comment Share on other sites More sharing options...
crock Posted August 6, 2014 Author Share Posted August 6, 2014 stock dual mass flywheel will hold 700bhp if in good condition that is. I would stay with stock clutch for now or maybe a chris Wilson uprated stock clutch cheers for the info that's nice to hear The stock clutch will cope with BPU power levels. Why do you need to change the flywheel? If you're fitting a new flywheel you might as well fit a new clutch at the same time. the car I'm looking at the guy says it needs a new flywheel, so I'm looking at a replacement, either a Toyota flywheel or upgrading to a solid flywheel, but if a new stock one is up to the job I don't see the point in the upgrade, I've also been told the clutch is fine that's why I'm asking if its a job that needs doing together, or if I'm looking to go more powerful in the foreseeable future is there any point putting a new clutch in at this point Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 6, 2014 Share Posted August 6, 2014 As Nic says, if fitting a new flywheel, fit a new clutch at the same time, an do the gearbox oil seals while the `box is out. Also check the gear lever extension housing bushings, they'll probably be shot, or tired. Minimize extra labour later! Quote Link to comment Share on other sites More sharing options...
Guest Budz86 Posted August 6, 2014 Share Posted August 6, 2014 Chris has neglected to mention he sells uprated stock clutches. For BPU this will more than cope, and with a new OEM flywheel you have a clutch that'll handle all the power you can throw at it short of going single, alongside stock peddle feel and engagement, with no rattles or judder. I'm sure if you ask him nicely he'll share the technical details with you.... Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 6, 2014 Share Posted August 6, 2014 He will indeed These are certainly an option for you! Thank you Budz86 Quote Link to comment Share on other sites More sharing options...
crock Posted August 7, 2014 Author Share Posted August 7, 2014 As Nic says, if fitting a new flywheel, fit a new clutch at the same time, an do the gearbox oil seals while the `box is out. Also check the gear lever extension housing bushings, they'll probably be shot, or tired. Minimize extra labour later! is the clutch and flywheel change a box out job then? pretty much rebuild anything outside the box whilst it is out? i'll have to start pricing things up to purchase on Monday if all goes well Chris has neglected to mention he sells uprated stock clutches. For BPU this will more than cope, and with a new OEM flywheel you have a clutch that'll handle all the power you can throw at it short of going single, alongside stock peddle feel and engagement, with no rattles or judder. I'm sure if you ask him nicely he'll share the technical details with you.... cheers for the info, Chris i'd love to hear more about your uprated clutch, how would i go about that? Quote Link to comment Share on other sites More sharing options...
crock Posted August 7, 2014 Author Share Posted August 7, 2014 just given the forum a search, Chris i'll be in touch on Monday, if all goes well i think i shall order myself a clutch from yourself if i return being the proud owner of a supra cheers mike Quote Link to comment Share on other sites More sharing options...
Guigsy Posted August 7, 2014 Share Posted August 7, 2014 Iv got an updated clutch and flywheel in my gt35r small single. Dunno the torque but it's 520bhp. But I think the clutch is buggered. Will a stock clutch/flywheel be ok in that? The old clutch was ok but would bounce you arround in 1st and 2nd if you were not carefull. It was fine on a change with decent throttle but in traffic where you just want to move a few car lengths it liked to kangaroo. And it sounded like "a bag of spanners" also. I'd like something a bit more driveable Quote Link to comment Share on other sites More sharing options...
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