Clutching the P-22 Boost

[damx]

Wounder when someone will make a steel spider?

 

[Sheetmetalfab]

Wounder when someone will make a steel spider?

Titanium. ?

 

[TRS]

Wounder when someone will make a steel spider?

Indy Dan was working on one last year.

 

[DUDEE]

TRS, Do you have a Boost P-22 clutch set up that your confident in yet? I've been waiting to buy a kit due to wanting your setup but I'm running out of time b4 I go west again early March .

 

[TRS]

We are getting close. Sorry.

 

[NEWDUCK]

TRS, Do you have a Boost P-22 clutch set up that your confident in yet? I've been waiting to buy a kit due to wanting your setup but I'm running out of time b4 I go west again early March .

Ive heard this kit is performing well. C&S

 

[madmax]

Wounder when someone will make a steel spider?

Cat has had a steel spider for a while. Spider is fine, but the rest of the clutch falls apart

 

[Reddragon800]

Got out again and was able to dial this boost in. Tried several helix and secondary spring combos, along with multiple primary springs and weights. The stock 14-78 just dont have enough tip weight to push the belt up the primary. In the conditions we were in that day i was only seeing 45-46mph track speed. The belt was not even 3/4 of the way up the primary. I tried 74g EPI turbo weights with a a softer spring, and still not enough squeeze.

After several changes, I ended up using the stock helix with a gold/black secondary spring (175/240) and a blue primary (150/310) and 76g EPI turbo weights. Track speed held right at 50-51 mph. What a difference. Belt was pushed much higher in the primary and clutch temps dropped. Rpm dropped down to 8400-8450 instead of the 8500-8550.

I will be making spring changes as i didn't have these at the time, but i think the 155/300 primary and the black/ white (160/260) are going to be spot on. Ill be out testing this weekend and will report back next week.

 

[Fosgate]

Got out again and was able to dial this boost in. Tried several helix and secondary spring combos, along with multiple primary springs and weights. The stock 14-78 just dont have enough tip weight to push the belt up the primary. In the conditions we were in that day i was only seeing 45-46mph track speed. The belt was not even 3/4 of the way up the primary. I tried 74g EPI turbo weights with a a softer spring, and still not enough squeeze.

After several changes, I ended up using the stock helix with a gold/black secondary spring (175/240) and a blue primary (150/310) and 76g EPI turbo weights. Track speed held right at 50-51 mph. What a difference. Belt was pushed much higher in the primary and clutch temps dropped. Rpm dropped down to 8400-8450 instead of the 8500-8550.

I will be making spring changes as i didn't have these at the time, but i think the 155/300 primary and the black/ white (160/260) are going to be spot on. Ill be out testing this weekend and will report back next week.

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Nice! What Elevation?

 

[shattuck]

I just got my boost and did the Carls clutching I think they’re only changing the weights. With one ride in hard setup snow I thought the clutching was good seemed almost as snappy to me as my carls 900 with complete Indy Dan clutching

 

[grizzslayer]

Got out again and was able to dial this boost in. Tried several helix and secondary spring combos, along with multiple primary springs and weights. The stock 14-78 just dont have enough tip weight to push the belt up the primary. In the conditions we were in that day i was only seeing 45-46mph track speed. The belt was not even 3/4 of the way up the primary. I tried 74g EPI turbo weights with a a softer spring, and still not enough squeeze.

After several changes, I ended up using the stock helix with a gold/black secondary spring (175/240) and a blue primary (150/310) and 76g EPI turbo weights. Track speed held right at 50-51 mph. What a difference. Belt was pushed much higher in the primary and clutch temps dropped. Rpm dropped down to 8400-8450 instead of the 8500-8550.

I will be making spring changes as i didn't have these at the time, but i think the 155/300 primary and the black/ white (160/260) are going to be spot on. Ill be out testing this weekend and will report back next week.

View attachment 384962View attachment 384963View attachment 384964

Awesome! Input and testing like this and TRS is what makes SW so great. clutch on my friends!!

 

[damx]

Carls cycle kit, just add epi weights to the stock setup, brings the bottom end to life, along with the on/off throttle. But lacking the top end of the stock weights, with 2g welded onder the bottom. I just installed the s&c kit on a friend's boost today, see how it works next time were out.

 

[Reddragon800]

Nice! What Elevation?

This was at 6800-7100'

 

[chrisco]

P22 6000 to 7000 feet EPI 76 gram , primary spring 135-310 , secondary spring 160/260 is a nice set up. The EPI weights are light on the heel hence the 135 start on the primary, with the 150/310 was slipping a bit off the bottom and then the weights would just come in hard. Heading to Revy for 8 days and will confirm the 135-310 but im 80% sure it will be perfect.

 

[chrisco]

Tony are you running your P85 yet ? Some guys up hear say the bottom end is much better because the belt is sitting lower in the primary so starting off in a lower gear. Whatcha figure ?

 

[TRS]

I haven’t on my personal sled(153 miles)but have 6 guys running them now.
They are liking the P85 better than the P22.
I’ll put the P85 on next week. Still waiting on 2 sets of proto weights for the P22.

 

[chrisco]

Carls cycle kit, just add epi weights to the stock setup, brings the bottom end to life, along with the on/off throttle. But lacking the top end of the stock weights. I just installed the s&c kit on a friend's boost today, see how it works next time were out.

I don't understand this at all.... The EPI weights have way more tip weight than the stock do and the belt is now running up the primary higher than with the stock weights. Also going from 78grams stock to 76 EPI and still pulling the same rpm kinda makes sense that the top end is pulling hard. I have this setup and the top end squeeze from the heavy tipped EPI weights is a huge improvement over stock.

 

[diamonddave]

I don't understand this at all.... The EPI weights have way more tip weight than the stock do and the belt is now running up the primary higher than with the stock weights. Also going from 78grams stock to 76 EPI and still pulling the same rpm kinda makes sense that the top end is pulling hard. I have this setup and the top end squeeze from the heavy tipped EPI weights is a huge improvement over stock.

It makes sense to me if the sled needs just a bit more weight. (To help the tip)

 

[joey@bmp]

The Bikeman kit is ready and has verified set up instructions, Fully adjustable for all elevations.

 

[damx]

Chrisco, I just changed it. I meant to say stock weights with 2g welded on the bottom/tip. We have had epi weights since December on boost sleds. Nothing I have tried has the track speed of the stock 78g with 2g welded on the bottom/tip with Stock helix and springs. I have tried 140-220, 155-222, 160-260 in the secondary. 100-275, 120-310, 145-295, 150-310, 165-310 from primary spring. I dont sell parts and I'm not a clutching expert, but I can tell the difference when changing parts out. I want to add more tip weight to the epi 76g, as I think this would be the ticket. I also ride 2000-4000'