rockenrail Posted January 11, 2015 Report Posted January 11, 2015 Wondering what you guys have lightened inside your engine? I see everyone buying Ti bolts and running suuuuuper thin chromoly for everything. I do not see much talk about lightening internal engine parts. I am getting ready to start assembling my engine and this would be a good time to lighten a few things up. I see quite a few ways to take some rotating weight out of my transmission. Remove first gear, remove teeth from unused gears, remove "cogs" that drive first gear. How about turning down the center of the clutch rod to save some weight? Maybe some shorter bolts for the less important stuff? Quote
m671054 Posted January 11, 2015 Report Posted January 11, 2015 How bout shaving the webs of the cases.aluminum pusher rod on the clutch since you should run a pancake bearing anyway. run no water pump and no kickstarter. Quote
Deadbeat Posted January 11, 2015 Report Posted January 11, 2015 and then the dude with awesome chain wack is way on front of your efforts lmfao Quote
n2otoofast4u Posted January 11, 2015 Report Posted January 11, 2015 You are on the right track. If memory serves me right there is about 3 pounds to be found in the motor and about 4 on the motor. However, you better have some serious time to burn! And for the love of all things holly, if you're REALLY going to try and cut weight, don't run a fucking billet stator cover! Quote
rockenrail Posted January 11, 2015 Author Report Posted January 11, 2015 You are on the right track. If memory serves me right there is about 3 pounds to be found in the motor and about 4 on the motor. However, you better have some serious time to burn! And for the love of all things holly, if you're REALLY going to try and cut weight, don't run a fucking billet stator cover! LOL. nope i have a stock plastic cover with the rear sprocket cover section cut off. I am not saying that i want to save every possible ounce at any cost, BUT if there are some very easy simple tricks.....I am all ears. My chassis will be a modded stocker with .065 chromoly front half and DUAL a arms. Quote
trickedcarbine Posted January 11, 2015 Report Posted January 11, 2015 I've been really been thinking of ways to crack down on weight as well. Ditch the kick assembly and set up for bump start, plastic side cover, titanium clutch push rod and any hardware can be switched inside and out of the motor, ditch the oil splash guides, machine the cutch cover. For you drag only guys ditching the radiator you can just nix the water pomp assembly. need to seal it though. There is weight to be saved by ditching the OEM flywheel and stator for a PVL, but to some the learning curve isn't worth the weight savings. Quote
trickedcarbine Posted January 11, 2015 Report Posted January 11, 2015 How bout shaving the webs of the cases.aluminum pusher rod on the clutch since you should run a pancake bearing anyway. run no water pump and no kickstarter.shoot, didn't see this..... Quote
n2otoofast4u Posted January 11, 2015 Report Posted January 11, 2015 Go thinner than .065What do you suggest? 049? 035? The difference from 1" 065 to 049 is .15 per foot. How many feet do you use when you front half a bike? Now go look at the strength difference from 065 to 049. Then go look at the weight difference from 049 to 035 and look at the strength difference. Quote
rockenrail Posted January 11, 2015 Author Report Posted January 11, 2015 I am going to use .065 and dual a arms because my life is worth those extra lbs. I will have to find other places to shave weight, I do want the kick starter and water pump but am considering a smaller radiator. The yz85 radiator looks promising. Quote
m671054 Posted January 12, 2015 Report Posted January 12, 2015 Has anyone ever seen a composite clutch cover yet? Seems like this would be next big thing for drag guys wanting to loose weight. no kicker no w/p. Pvl is easy no real learning curve and light as can be. You can lighten crank webs but some rotating weight is good to have. On chassis tube size 1" .049 is iffy. As green pointed out the weight savings vs strength is not worth it. Quote
trickedcarbine Posted November 29, 2017 Report Posted November 29, 2017 Is anyone aware of a company that makes Ti C and E clips? I found Ti rod I want to use for the clutch pusher, and I am thinking of ordering another piece to do the rods for the shift forks. Thoughts? Quote
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