keithmac 0 Posted September 28, 2005 Anyone know where I can get a 70mm pulley in the UK?, think a 68 may be on the small side for my setup/ revs? Cheers :D. Quote Share this post Link to post Share on other sites
Supercharged 2 Posted September 28, 2005 VW Motorsport used to use the 70mm, maye contact them? Quote Share this post Link to post Share on other sites
keithmac 0 Posted September 28, 2005 Any contact details or do you have to go through VAG? Quote Share this post Link to post Share on other sites
olly elworthy 0 Posted September 29, 2005 think c and r sella 70mm according to their catalogue, also ridgeway racing used to do them,, Quote Share this post Link to post Share on other sites
VR6 0 Posted September 29, 2005 Moving to Suppliers. Quote Share this post Link to post Share on other sites
keithmac 0 Posted September 29, 2005 Sorry VR6, posted it in the wrong forum :oops: Quote Share this post Link to post Share on other sites
h100vw 0 Posted September 30, 2005 2mm isn't much as a percentage. Do you plan to run it at the redline constantly? I don't think it'll any problem using a 68mm. Gavin Quote Share this post Link to post Share on other sites
keithmac 0 Posted September 30, 2005 Don`t plan to run in the red constantly but hopefully I`ll be doing a few trackdays next year, maybe my best option is to run the 78 for track and 68 for normal driving.. I actually bought a 70mm off German ebay last year but when it eventually turned up it looked like the bloke had removed it with a hammer.. Quote Share this post Link to post Share on other sites
Riley 0 Posted September 30, 2005 I actually bought a 70mm off German ebay last year but when it eventually turned up it looked like the bloke had removed it with a hammer.. nice swapping between 78 and 68 would mean swapping the serpentine too wouldnt it keith? plenty people tend to run the 68's with no probs,could always drop the revs a bit on trackdays? not what you wanna be doing really though i suppose? :lol: Quote Share this post Link to post Share on other sites
h100vw 0 Posted September 30, 2005 Keith, have you done any track days? I used to do quite a few when I had my GTI G60, since that went though I have been stuck on the Queens highway, which I treat like a race track :mrgreen: Even with a revy 16V I don't think you'll be pounding the limiter. If you get a dyno plot you'll see where the power is and how best to use it. For example I know that there is little point in going much past 5K on my syncro as the torque and power drop off sharply. Far better to short shift at 5 and let the torque do the work. I'd just fit the 68 and drive it. I know you will have spent loads building it but that should mean you have a bit of mechanical sympathy for it too. Gavin Quote Share this post Link to post Share on other sites
keithmac 0 Posted September 30, 2005 Yeh, been to Donnington a few time last year, never with the charger on it though.. Car used to have peak torque at 6200rpm so I`d expect it to be around that, car sits at around 10 psi from 2.5k to redline with 78mm on it. Suppose you`re righ, I wouldn`t want to blow it up after spend a year building, tuning it. Only as fast as your right foot.. Quote Share this post Link to post Share on other sites
h100vw 0 Posted September 30, 2005 I would imagine with the charger on it would have a fairly wide spread of power, so no need to wind it right up. Wear trainers, instead of a divers boot. :mrgreen: Gavin Quote Share this post Link to post Share on other sites
keithmac 0 Posted September 30, 2005 Yeh best thing about the G is you can nail it from 2k or lower, rather than in the 3.5 k rpm range after the kents went in (or 4.5k when it was stock), I`ve finally got some torque!. It made the car so much more drivable and normally I don`t event hit 4k or higher, I was looking to use the car to the limiter but thinking about it I probably will never need to anyway, 68mm it is. Just need my bigger injectors as 350`s are maxxed out at 6500rpm, 100% DC which isn`t the best.. Serp belts are a bit of an issue, bought 4 and none of them fitted properly, using a cam belt tensioner at the moment to pre-load/ take up the slack before fitting the spring tensioner, maybe lucky with the 68mm will have to measure the run with a piece of string. Bought some slicks as well but I haven`t had the chance to try them out, won`t be `till spring before I`m ready for any track action I would have tought? How do the G60`s hold up on track? can`t wait to have a go.. Quote Share this post Link to post Share on other sites
keithmac 0 Posted October 18, 2005 Put my 65 back on it yesterday for normal driving (bloody hell!), not too much hastle to change the pulley so I`ll look into a 70 for the track just to give it half a chance.. Can put up with earlier servicing on the 65, I normally do less than 4k miles a year and if it goes bang it`s all my own fault. Having a lot of trouble with traction in second gear though :D Quote Share this post Link to post Share on other sites
billinjah 0 Posted October 18, 2005 just get a rev limiting shift light! Quote Share this post Link to post Share on other sites
keithmac 0 Posted October 19, 2005 I can rev limit through Megasquirt although I`ve heard the G60`s don`t take kindly to rev limiters? Quote Share this post Link to post Share on other sites
h100vw 0 Posted October 20, 2005 It's the sudden on/off drive from the engine that they don't like. Probably having no limiter is safer as you couldn't rev one too hard anyway. Unless the megasquirt has a soft cut facility, which is much gentler in operation. Gavin Quote Share this post Link to post Share on other sites
keithmac 0 Posted October 20, 2005 It has got a soft cut limiter, does either or both ignition and fuel cut, haven`t had a good look into it to be honest. I`ve read fuel cut could be dangerous but I don`t know how the MS applies it, maybe shut down 2 cylinders completely as if you lean it off on boost BOOM!. Quote Share this post Link to post Share on other sites