BikeJake Posted June 16, 2022 Author Posted June 16, 2022 I just found Grumpy 1260 feel like I've hit the motherload. Quote
fatblokeonbandit Posted June 17, 2022 Posted June 17, 2022 Look at Dale Walkers Holeshot in The US, he dose some good stuff, I have his standard bore high com0 pistons in one of mine, and it is excellent Quote
Gixer1460 Posted June 17, 2022 Posted June 17, 2022 (edited) 13 hours ago, BikeJake said: This is diamond info chaps. JE / MTC 1216 @ £700? + boring £200? - Hayabusa mk1 pistons £150? + boring £200? (but needs head below) J/K 750 cams - or any K / L 1127 cams as they are virtually identical - cost £ for either. Gas flowed B12 Head @ £600 - £1000 inc parts - GSXR Dot 750 head £200? and mild clean up £200 (works with the Bus pistons as they are lower CR once installed . . . . . maybe 11:1 CR? Biggest issue is finding a non - mullered one. I sold my last one with cams for £150! And factor in using Super Unleaded ALL the time with the Wiseco / JE / MTC 12:1+ pistons - boring old fart thought but it is a viable cost FOR EVER! 38 RS @ £700? - or 36RS - same cost and still get 150+hp. Obvs S/H maybe half the cost. Hindle 421 Headers. - Alt. - Akropovic or equal full system in SS + Carbon or Ti ? - how deep is your pocket. The SS/SS is pretty ltwt. in my experience! Dynotek Ignition - Go for Ignitech - Agreed, for its cost it is exceptional and i'm a fan of Dyna products! Dyno sesh... £200 and required whatever set up chosen! Anything else before I start buying this stuff. Lol.. I do think the 3rd party cams at 325 plus pandp seems like the biggest waste of dosh if I can find JK ones?... Am I making sense.? I don't see the point in cams for road bikes - purpose built type engines - racing, turbo, tractor pulling then yes but everyday use, spend the £££ elsewhere! Or alternatively with 'guesstimated' costs comparison . . . . In RED above. Edited June 17, 2022 by Gixer1460 2 Quote
davecara Posted June 17, 2022 Posted June 17, 2022 @Gixer1460Have you used Busa pistons for a N/A 1216? I've only ever seen them used in a turbo application. Would have thought the CR would be far too low unless you had the barrels decked. Would you use rods too? 1 Quote
Gixer1460 Posted June 17, 2022 Posted June 17, 2022 4 hours ago, davecara said: @Gixer1460Have you used Busa pistons for a N/A 1216? I've only ever seen them used in a turbo application. Would have thought the CR would be far too low unless you had the barrels decked. Would you use rods too? I haven't and normally I wouldn't propose them - especially for turbo use, but everyone has a budget and within the cost savings noted there is cash available for skimmed barrels, Blandit barrel flanges can handle a decent skim. I believe using the rods, pokes the pistons out of the block! And considering their origin and s/h cost, their use in a 'performance application' stacks up as they also have OEM long term reliability on their side! God knows how vvv got here ! 18 hours ago, BikeJake said: 1 Quote
BikeJake Posted June 17, 2022 Author Posted June 17, 2022 The cams seem to be the issue. Plenty of slingshot cams no J K Cams some expensive cams. And a note that these engines have a tendency to burn up cams a tad? I guess I'm gonna have to go Kent of Sukuki Performance Spares. Trying to get hold of Grumpy see if they can do head. Pistons JE or MTC?? Or shall I just do some pistons split the cases do some H beam rods and bolt a turbo to it... Tbh... I'm less attracted to that as I like trad DOHC carb engines. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.