Surfrjag Posted June 23, 2015 Report Share Posted June 23, 2015 What is the best way to decrease your air gap and what effect will it have? Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted June 24, 2015 Report Share Posted June 24, 2015 It's very hard to do effeciantly on a traditional set up unless someone has a trick I've toyed with some ideas if you wanna hit me up Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted June 24, 2015 Report Share Posted June 24, 2015 well I thought milling down either the lockup itself or the inner hub where it bolts up would bring it closer. Quote Link to comment Share on other sites More sharing options...
Tedder Posted June 24, 2015 Report Share Posted June 24, 2015 You can get thicker steels which will fatten the clutch pack (increase the stack height) and move the outer pressure plate closer to the lockup or machine down the "legs" on either the inner pressure plate or the lockup itself. Quote Link to comment Share on other sites More sharing options...
Tedder Posted July 1, 2015 Report Share Posted July 1, 2015 http://www.mtceng.com/index.php/faqs/18-faqs-clutch-lock-up/101-how-much-clearance-is-needed-between-the-lockup-arms-and-the-pressure-plate-buttons Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 1, 2015 Report Share Posted July 1, 2015 That's a good read for guys looking for a quick basic understanding of a lock up Quote Link to comment Share on other sites More sharing options...
dozer Posted July 8, 2015 Report Share Posted July 8, 2015 Does it matter at all if a person is using all 6, or just 3 springs as long as the base pressure is correct? Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted July 8, 2015 Report Share Posted July 8, 2015 Use all 6 doze , I like equal pressure on the clutch pack, . Trim springs up for desired weights. Surf if your gonna trim trim the hub it's a cheaper oops I can vouch for that Quote Link to comment Share on other sites More sharing options...
dozer Posted July 12, 2015 Report Share Posted July 12, 2015 how thin are you guys running your clutch fibers before throwing them away? Quote Link to comment Share on other sites More sharing options...
Joejr915 Posted July 12, 2015 Report Share Posted July 12, 2015 ^I'm curious also Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted July 12, 2015 Author Report Share Posted July 12, 2015 how thin are you guys running your clutch fibers before throwing them away? Stock is supposed to be 3mm or 0.118 we always measure them new. We very rarely have any that wear below 0.117 before throwing away. Most of the reasons for trashing them has nothing to do with the wear of the friction/fibers. It has more to do with the condition of the friction/fibers. We can generally get max performance out of the fibers for around 100 heads-up runs. That's any type of run 300', 1/8 or 1/4 mile. The next 100 runs we consider them for bracket/index racing. They have lost some of there performance, but are still consistent to use. We have tested them over 200 runs, but that's when they start breaking. The above examples are from a well inspected/maintained clutch program. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted July 12, 2015 Author Report Share Posted July 12, 2015 What is the best way to decrease your air gap and what effect will it have? http://www.mtceng.com/index.php/faqs/18-faqs-clutch-lock-up/101-how-much-clearance-is-needed-between-the-lockup-arms-and-the-pressure-plate-buttons I covered the air gap earlier in the thread. Tedder hit the nail on the head or more properly MTC did! You need a minimum air gap for the clutch & of course there's a maximum. IMO, for tuning purposes there's no reason to fuck with it. Unless it's causing problems like MTC somewhat explained. Now, someone mentioned reaction times associated with air gap. In our testing, changing the clutch pack height can help to quicken or slow the quads reaction time. While changing the clutch pack height changes the air gap. It's the change in pack height giving the quicker/slower reaction. Here's an example of what we do. We use a thicker than stock clutch pack height for .400 pro tree racing. For full tree we use a stock clutch pack height. For the air gap settings with the 2 different clutch pack heights. We machine different thickness pressure plates to keep the air gap the same. Quote Link to comment Share on other sites More sharing options...
Cuztom Racing Posted July 21, 2015 Report Share Posted July 21, 2015 Old thread but A LOT of good info on here.. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 30, 2015 Report Share Posted July 30, 2015 When checking springs, you need to figure out their installed height on your current set up. Then set your spring tester up for the same distance. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 30, 2015 Report Share Posted July 30, 2015 Correct. That way you are checking the actual pressure of your set up. Quote Link to comment Share on other sites More sharing options...
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