gangstahic Posted August 16, 2011 Report Posted August 16, 2011 bout to go to a 421 serval wondering wat exactly do u need to have a lock up set up or if theres an close to equal alternative setup besides a lockup Quote
J-Madd Posted August 16, 2011 Report Posted August 16, 2011 You can run a standard direct drive style lockup and bigger cover, or a slingshot style lockup and run the stock cover. You may also get by running some heavy springs, but the clutch pull is gonna be harder. Quote
gangstahic Posted August 16, 2011 Author Report Posted August 16, 2011 Okk so what exactly do I need to run the direct drive lock up the lock up assembly cover and.... I have a bone stock clutch assy Quote
RadarRacing Posted August 16, 2011 Report Posted August 16, 2011 You can run a slingshot made by Gigot performance engineering under your stock cover and stock springs. That will be a budget way to have a lockup and a clutch will last quite a long time. Very easy to use good product. You could also get a HD type clutch from M/M atv or FAST and it will hold up to 80-90HP no problem. Quote
gangstahic Posted August 16, 2011 Author Report Posted August 16, 2011 Decisions decisions thanks boys Quote
gotta_goatsfast Posted August 16, 2011 Report Posted August 16, 2011 For my outdrive and clutch assembly these are the parts I run in my serval. Starting with stock ratio straight cut (spur gears) drive gears reduces the side loads that stock helical gears create. Then I opted for a magnum billet clutch basket (don't trust the stockers). Check your inner and outer hubs to ensure they are in spec or replace them as warped or worn hubs will create issues later. Mine were fine. If you do not have a pancake bearing pick that up as well. I use the clutch frictions and plates that FAST racing sells and it all holds together with stock pressure springs. Then the direct drive centrifugal assembly bolts to the top of the outer hub. I can get away with an allen machine screw and locknut on the fingers. Seams to be enough weight to hold the torque. Then I used a direct drive cast cover with 12 bolt window for reduced leakage potential. The chariot mega-flow impeller and machined waterpump cover went into the cover. Remember to swap the kicker idler gear bushing with a steel bushing. Mine had a lot of play and I was surprised it didn't shift and bind up with other gears. Quote
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