Machining Clutches for full shift out?

Craig, first off, I am not cutting on you! your gain was most likely just from the gearing and helix change, you see for every thing you change there is a exact reaction from something else, Did you know you can gain top end from gearing down a sled??? its a win-win situation in some cases, better accelaration AND top speed, because the clutch will shift faster (engine is able to pull more clutch weight and easier load on engine)and end up in a area that provides better belt clamp(1:1 ratio),the helix having a shallower angle provides more belt clamp at higher speeds and this means better grip, this also enables the engine to not run into a wall. It's like letting the load be relieved and keep revving up steadily. Back when I first got the viper and was testing it on the grass, I posted about using a 53/43 helix, gaining 5-6 mph in a given distance. There were some that argued that the finish was too low, the 53 helix shifts the engine harder but you need the lower finish angle to allow the engine to recover from the more heavy load you just applied to it by making the start angle steeper, if you would have kept the stock 47 finish angle on the end the engine would get into a" rolling bog" being it can not recover from the heavier first applied load and will not continue to keep revving up evenly, its kinda like dumping the clutch on your 5.0 mustang, rip 1st, then 2nd then hit 4th instead of 3rd, it will still go, but will take a good long distance to recover from the overshift!!(shows as a low rpm condition in midrange and top) The low finish angle is required to keep the engine revving smoothly, accelerating and making torq,(this is what keeps you gaining speed, by not beginning to backshift from the torq. loss), ( this is where the primary and secondary will try and work against each other, this causes the engine to seem flat for a period)and yes, you may need a titch more tip weight, which is a good thing!! this will increase top end!! Like I said, for every action- there is a equal reaction from something else. Have you ever seen great top end from a set of 8bu-00 weights, I have, and I just explained how to get a good bite on both worlds, awesome drag capabilities and decent top end! Large helix spreads have many advantages, this along with h/c will also produce good numbers thru out the whole range. You must compensate problems with the instalation of such componets, if you sit back and look at what the problem is with a given combo, its easy to pick the right part to complete the puzzle.***Clutch temps tell you exactly what is happening as does a vdo playback tach. **

MTN max: on roller secondaries: they work great for trail riding, they do suck away topend greatly, because to control a roller secondary, you need massive spring pres., this works great for starting out clamping the belt but then works against the primary on topend, it will begin to backshift and never put the belt up into your overdrive sheave, so you see the sheave is not gaining you anything again. hauck thanx you for the purchase. You can lead a horse to water but you cant make em drink!! have fun guys and try differnt things, its how you learn what some guys sell and it works, and what you get from some guys that just make your wallet lighter. peace
 
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mrviper, no need to apologize, i didnt think you are bashing me, just giving your input. like i said guys like you with more knowledge on the subject are how i have learned the little i have learned and by taking what others suggest tweaking it to get the results I am trying to get.
 
I marked my primary clutch with a marker and it does fully shift out in about 500 feet actually so I know i am going into overdrive, but yur right i do have a stiff secondary srping, I trail ride and play with my sled, it has reverse and electric start, I just race it for fun, but trail drive it lots, now my SRX440 is another story..........
 
My belt will go to approx. 1\4 inch (never actually measured) from the top of my primary. Are any of you guys seeing yours ride up any further? Seems like if it went much further it would be in danger of going over the top. How far up is overdrive? How far up will it go with the primary sheaves and helix cut? I am running a 2002 SRX with a Hauck #4 kit,always looking looking to learn more. I also just went up one size on my mains and lowered my needles 1\2 clip. Hopefully the dcs won't go off in the midrange,oh well if it does I'll have to change it back. Have read alot about guys going up on the 02 mains but nothing about leaning the midrange a little. Has anyone done this.
 
I mark my primary shieves and it rubs completely off so it shifts right to the top.


My buddy richened up his midrange a notch as his DCS light was coming on with 87 octane (all we can get here)
 
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