went back to 8DN-20's instead of HC's

well guys.Tried sled again with the 47 helix and big changes from using the 51/43.WOT rpm's dropped.Using re at 80 wrap now.I now am at 8400ish at WOT.Still hitting about 107 and it is -9 C todat.Prefer it to be a little colder for testing.But I am happy with the results.My engagement is to low..like around 3500-3600.Need to bump it up a tad.Will end up changing inner hole rivets to a little lighter...3.6 maybe.Have in there now 5.3-5.5 approx.I am still over reving on launch..got to solve that.Happy otherwise.That 51/43 was causing my over revs.
 
alots of people seem to overrave with the 51-43 .. the 50-45 from bender work pretty awsome with those 8dn-20
 
maybe my primary spring to stiff or the heel weight to heavy.Would like engagement to be around 4000,not 3500.This creates a little bog.I should go back to a w-w-w spring maybe.And if wot rpm's are a touch under 8500,I could go to a green secondary spring maybe at 70 to raise rpm's.
 
I've been reading your posts both about 8DN-20's and the heelclickers and you are constantly running anywhere between at least 2-5g more than me to keep rpms in the same area... not sure why. Right now I have 8DN-20's 4.5g both holes www primary green secondary at 70 wrap with a 51/43 helix and i'm spot on for revs and have no problems hitting 180km/h on MY speedo... Running with and slightly beating my dad's 04 warrior. every time which reads a constant 195km/h on a plowed road when we're side x side.
 
maybe....maybe.LOL.If you had more power changeup,,you would be over-reving.....just kidding. Changeup...you are using a green spring and I was using a red spring all along.Green spring would then in my case haved raised my rpm's even more.What you think about this:I have 5.5 in both holes of the weights.Does that mean that I am upshifting to fast then.You would think if I had more tip weight,that my rpm's should drop then.#$%&* #$%&*
 
I am thinking of what Turk told me.Set your primary up for torque rpm's and let it climb to peak rpm's of 8500.Torque rpm's being around 8200.
With my 600,I have 8DN-20's ..3.6 in heel and 4.5 in tip.Used the 51/43 with green spring at 70 I think and am spot on.8200 launch and 8500 wot.But the SRX has about 50 HP more and doesn't work the same way.
 
this is what is sucks a little with stock spring the engagement is to low well for me loll..if u need to raise the engagement u need to notch those weight but after that its not really smooth for trail ride ...try to find a bender helix with those 8dn-20 or swap that helix with someone and you will see the difference
 
ADD TWO SHIMS TO PRIMARY FOR ENGAGEMENT. SHIMS ARE GOOD FOR ABOUT 200 EACH ON ENGAGEMENT RPM. GREAT FOR FINE TUNEING ENGAGEMENT. JUST DON,T RUN ANYMORE THAN TWO. 3:16 (yammie tony)
 
yammigod.............if my 51/43 is over-reving with the 8DN's,how would the 51/43 helix work with my HC's.Is it possible I could get it to work somehow?
 
MONSTER , I THINK THAT STEEP FINISH (43) WOULD PROBLEY CAUSE SEVERE OVER REV WITH HEELCLICKERS BECAUSE OF HIGH TIP WEIGHT. I BELIEVE THATS WHY THEY WORK WITH SHALLOW FINISH 37-38-39. REMEMBER A HIGH FINISH ANGLE WILL WANT TO MAKE RPM CONtINUE TO CLIMB. THATS WHY THEIR GREAT IF YOUR RPM IS TWO LOW. TELL YA HELIX I LIKE YA TO TRY WITH YOUR HEEL CLICKERS IS A 50-40. I HAD MY 2002 SRX OUT TODAY WITH A 8BU-00 SET-UP I MADE AND IT JUST FLAT OUT SMOKES. ROCKETSHIP. I AM AFRAID TO BUILD A HEEL CLICKER SET-UP FOR MY 2002 , ITS THAT GOOD. 3:16 (yammie tony)
 
I'm engaging at right around 3800 rpm. I can pin it right from a standstill and pull the skiis over 1 foot in the air without a hiccup from the motor. What TURK told you to do is what I've been doing with all my clutching. Pin it and climb instantly to about 82-8300 rpms and it'll hold there for a while until I get up past 160km/h and then slowly start to climb up to 8500 near top speed.
 
I have been up late last night,was reading about 8 pages of stuff from guys on here about their clutching situations,including yours.It was really bugging me.So I tore the damn clutch open last night after 12:30 am and looked at them weights.I set them up last Feb/07 and that's the way they were since then.I had 4.5 grams in both holes with 2 washers in each rivet.It started to interest me what everything weighed.Since I don't have any more 4.5 rivets..I had to be creative.So I grinded the end of the heel weights until the washers came loose and punched then rivets out.I weighed the difference before and after.Seems to me I was actually running 6 grams (give or take )some total per hole.That was a bit much.I went and grinded the top rivet down a bit both ends and some of the washers on their sides.I dropped their weight from 6 grams to 5.4 grams.That is a total removal of 2.1 grams less.Then I had 3.6 rivets brand new and found 2 washers that will fit them and not overly thick.Total I have is 4.5 then,not 6grams like I had before I grinded them out.Put those in the bottom holes and peened rivet over the washers.Here I went and saved 1.5 g per hole for a total of
4.5 g off the entire weight apprx.So now I am running the 8DN's at about 6 + grams less all around.My total weight now including rivets/washers come to 53 grams.Before I did this..everything weight in at 55.1 grams.So to be more precise..I dropped the total weight by 6.3 according to the gram scale here.
I will installed in the primary a w-w-w spring again and go firstly with a Green secondary spring wrapped at 70 and see what gives.Will use the 51/43 helix also again.Something has to change here.
I will try different wraps to get rpm's close and may even go to a Red spring wound at various wraps to see where the closet and best setting for rpm's will be.This is my work for today and hope it gets me there or close enough to make me smile....LOL
 
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Hey blue, I got the same problem with my Viper. Journeyman had the same problem also and wound up installing heavy hitters. This pulled his rpms down.
Just an FYI.
 
Got the old 98 out on the ice yesterday for a run up to the casino.She is cocked locked ready to rock!!!Pulled 190 on the dreamo with out a prob.Going back out today to see if i can play wrap around the clock.
 
Bluemonster,

I wonder how much your traction is factor in your cltuching woes? I recall you mentioned earlier that you were not running studs. If thats the case and couple that with poor weight transfer, that could explain why you're seeing higher revs compared to others like myself with the same setup.

Mark
 
Guess I'll find out today how it'll go.On the river it is very packed,so my traction is better without studs.It's just when I am wot that I am really concerned.Don't need to be running 200-400 over on the revs.If it is close enough like 8450-8500..I am happy and that is all I can do.Just ride now and enjoy the rest of the season before it goes.
 
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