Reinhoud Posted December 3, 2019 Share Posted December 3, 2019 (edited) Gents, I'm about to order wrist / gudgeon pins, but I'm afraid get not the right ones.. What wrist pins do you guys use? 18mm. I can find some on the APE site, but they're 5mm too short. It's for a GS1000.. I had planned to get pins what goes in the GSX1100. A max of 200/220 crank HP, just a guesstimate Any ideas? Thanks Edited December 3, 2019 by Reinhoud Quote Link to comment
Gixer1460 Posted December 3, 2019 Share Posted December 3, 2019 Stock or whatever comes with the aftermarket piston you use. At that output you won't be stressing the pins! 2 Quote Link to comment
Reinhoud Posted December 3, 2019 Author Share Posted December 3, 2019 Apparently the 2nd generation Hayabusa has 18mm pins.. I'll order those, should be right, I hope.. 1 Quote Link to comment
Reinhoud Posted December 3, 2019 Author Share Posted December 3, 2019 2 hours ago, Gixer1460 said: Stock or whatever comes with the aftermarket piston you use. At that output you won't be stressing the pins! I don't have a clue what they can handle, I'm just afraid it stuffs up again, I can't afford a second time. Quote Link to comment
Gixer1460 Posted December 3, 2019 Share Posted December 3, 2019 Pins are just not a problem until you reach REALLY high loads ie. 40+psi boost, excessive Nitrous or Nitro fuels - be more concerned about the pistons and rods and the oil system to keep THEM alive! 2 Quote Link to comment
Reinhoud Posted December 4, 2019 Author Share Posted December 4, 2019 14 hours ago, Gixer1460 said: Pins are just not a problem until you reach REALLY high loads ie. 40+psi boost, excessive Nitrous or Nitro fuels - be more concerned about the pistons and rods and the oil system to keep THEM alive! Ok, thanks. Quote Link to comment
Gixer1460 Posted December 4, 2019 Share Posted December 4, 2019 6 hours ago, Reinhoud said: Ok, thanks. Funnily enough I mentioned this to Sean @ BigCC yesterday in passing and he whipped out a broken pin that had gone on the dyno! It had multiple pulls and was making 542bhp at failure - it was from a 1000cc bike and 15mm dia! Mentioned 18mm GSX - his words - 'No problem!' Quote Link to comment
Reinhoud Posted December 4, 2019 Author Share Posted December 4, 2019 14 hours ago, Gixer1460 said: Funnily enough I mentioned this to Sean @ BigCC yesterday in passing and he whipped out a broken pin that had gone on the dyno! It had multiple pulls and was making 542bhp at failure - it was from a 1000cc bike and 15mm dia! Mentioned 18mm GSX - his words - 'No problem!' Haha, thanks! Quote Link to comment
Reinhoud Posted February 11, 2020 Author Share Posted February 11, 2020 Meanwhile I've got some wrist pins, I ordered a set from a Gen 2 Hayabusa, but these were too short, 3mm wall thickness. Then I ordered a set from a GSX1100 with the 493 conrods, also 3mm wall thickness, but these are too long, but that doesn't matter, I can make them shorter. So, problem solved! Quote Link to comment
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