grinding a notch for higher engagement

Bullit01

Bullit01

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Mar 25, 2007
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Age
45
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Bonfield
Hey guys just wondering if anyone tried grinding a notch in the 8bu-00 for higher engagement for 660ft on asphalt? Did it work compared to using a spring?
 

never had t0 notch 8bu-00, hauck orange, maxximum black, white, purple all were atleast 5500. unless you want a 6000 engagement. also keep in mind, you can,t put back what you grind. only weights i ever did were h/c, i wanted a 5500 enagement. 3:16 (YAMMIE TONY)
 
I have ground weights for grass drags with great results. That being said I'm not sure it's a good choice for the tar! When we used this technique we where after a very high rpm and hard engagement. I don't think you will be able to hold traction with a notched engagement weight. My suggestion if you decide to try it would be to start very slowly and grind only a small flat into the weight to start. You can go farther if it seems to be working for you. Another option would be to take a cut off the spider. We have done this as well and you can always shim it back if you take to much off.
 
I was looking for 4500 to 5000 for engagement. I dont think it would hook any higher than that. My engament right now was 4200 and ran 1.51 60ft and a 6.71 in 660ft on asphalt. Only have 11 passes on it so far.
 
my 2000 hooks like a rocket with a 5500 engagement. 1.42 60. stock skid 15 '' track. hook up on tar is totally different than ice and grass. all comes down to your local tracks conditions. all you need is different primary spring. 3:16 (YAMMIE TONY)
 
What spring are you using? I was thinking the notch because it would be different coming out of the hole compared to a stiffer spring. If you do the notch you should not have to add much more weight compared to changing a spring and it should come on hard at the beginning with the notch. Wright?
 
change rollers to bigger, it will change engagement some. it will also give the effect of running a lighter weight at lower shift points.

if you want to raise engagement and nothing else to be changed, machine the back of your spider so the rollers get closer and closer to the weight. It will engage higher and change nothing else.

There used to be a bolt and dial adjust for the end of the primary you could buy to adjust this clearance. If not, you can use shims to get it right but the clutch needs to be broke down to be adjusted. For shims, go to a truck garage and get king pin shims
 
I am using the g-w-g spring and weights are at 54.1 grams total. Hey betheviper is there any good write ups about the spider trick?
 
the g-w- g is 45 pre-load - 136 total force. get a spring with more pre-load same total force. will increase engagement and leave total shift same. heel clicker white will put your engagement at 56-5700. you want to be 5000, call hauck powersports and order his blue spring. will be 4800 and add one shim. 5000. 3:16 (YAMMIE TONY)
 
What is the problem is when changing a spring to change engagement, when everything else is correct, causes the whole shift to change. If you go up 10lbs on engagement pressure, you are also effectively decreasing the force of the weight all the way up through the shift curve, progressively lessening the effect as it gets closer to full shift out.
a 5lb jump, may not effect it much, but is still, 5lbs at shift out and 2.5 at half shift out. Be ready to adjust some other stuff if your on the money right now and change spring for engagement
 
SURE EVERY CHANGE AFFECTS SOMETHING I AGREE. AND A CUT ENGAGEMENT NOTCH WILL TO. IF YOU HAVE A ENGINE THAT HAS A WIDE POWER BAND LIKE MOST SRX,S, THE CHANGE WIll BE MINIMAL, ESPECIALLY USEING A SRPING WITH THE SAME TOTAL FORCE AS WHAT YA HAVE. 3:16 (yammie tony)
 
Thats why i was thinking of notching the weights so that it is minimal change through the shifting. I would be curious to see the difference in the effects on the 2 different ways for engagement and upshifting.
 
Hauck org is a good spring. With same finish another way of minimal change
Once ground theres no going back vs a spring change and little more if any tuning
55-135 Hauck Org
45-136 g-w-g
 
Last edited:
00sxrjoe said:
Hauck org is a good spring. With same finish another way of minimal change
Once ground theres no going back vs a spring change and little more if any tuning
55-135 Hauck Org
45-136 g-w-g
Click to expand...
;)! 3:16
 
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