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35 helix from Dalton and a Black/Orange Dalton secondary spring, I'd set the spring at 80 or 90 wrap. Which is 2 & 6 = 80 degree wrap, or 3 & 6 = 90 degree wrap, just add the two numbers and thats what we talk about wrap. If you are using stock secondary rollers I'd start with the 80 wrap, just...

Again, traction or lack of traction, is not going to affect the boost levels if you are WFO throttle. It's going to boost the same every time you are WFO wether hooked up solid or not. The RPM will change from the clutching however. A header will make the same power as stock manifold, but at a...

I have tried upping the spring pressure on the front arm spring and don't like what it does to the ride. I don't understand how anyone could or would want a stiffer spring on the front arm unless they were a big guy. I run the stock front arm spring real loose for a better ride. Aggressive...

MCX is out to lunch saying that, but of course altitude is going to lower the output. The Pro-Mods are up over 400HP using that turbo at mid 30's for boost, Trail sleds are getting around 300 at around 17.5-18 lbs. of boost with a header tune, of course its going to take more boost to get the...

Traction is going to affect the clutching for certain, but it shouldn't affect the boost. Here at about 1000 foot above sea level, the boost is there for me whether spinning in the deep powder or hooked to the max, I use a 1.25" Rip2 however. RPM will spin the turbo wether hooked or not...

Is that your new 24 Steve? That sucks! Looks like just part of the outside banding. Any idea why that would have happened? Could it have been broken fiberglass rods? I've had that happen before where the rod breaks.

I figured it will be an old 1100 Suzuki copy.... Yuck, I hated the sound of that twin cylinder engine. Only way it didn't sound like a sick cow was to use the stock muffler on it. Really too bad if they didn't build a new wider Catalyst chassis around the existing 998 at least.

About the same story I've had, but in my case it was a two ply 2.52" pitch Rip1 that blew out and ruined the tunnel of my turbo RX-1 on the lake at right around 132 MPH. It didnt even break at a stud line where you would think it would. It ripped the track in two right at the fiberglass rod and...

Where the belt sits in the secondary is really irrelevant. Its going to change based on belt width, length and different centers. Dont even know why the factory would use it as a recommendation point for belt deflection. Deflection is what dictates where the belt will sit at idle in the...

No reason for it to come out at all. Even it does nothing its just along for the ride. Doesn't hurt anything. At this point in the season I don't even want any snow. I'll go back to work the last week of Feb. and am hoping it doesn't snow the rest of the spring. Not only would it not last or...

Just the engine running, the tolerances and movement from the crankshaft, stubshaft and the bearings combined. there's movement and vibration in all of it. I used green loctite on the knockout ring on assembly, but have ZERO miles on the machine this winter if thats what you could even call it.

I haven't ridden one mile yet this season, but have my 5.7 Doo single keel race skis ready to go on with Aggressive Snowtrackers. I doubt we'll get any snow to ride, and if we do let's face it, the trails wont get groomed if we do, but I fully intend on using them with great success like I have...

Like I said, the pink binds already at 60 degrees, so setting it at 70 its really going to bind at full travel. Don't be surprised if you pop another belt at high speed. Especially if you are still geared down. When you limit the travel on the secondary, and the primary keeps pulling belts pop.

Guys are running the single spring PB80 up at 300 HP on the 1200 even, which will clean the clock of any 300+HP 998 turbo. The 1200 does more with less HP by about 30-40 HP at that level, the 1200 turbo also has way more TQ than any 998 does.... I say base clutch meaning their stock spring cup...

A stock yellow spring that came in the 17's is a bit stiffer than the pink they put in them in the later years. The 17 had the best stock clutching in the secondary with stock 35 and yellow set at 60. When they went to the lousy 35-39 reverse helix in the later years and the pink spring it was...

Anything beyond the stock 3-3 and it will could bind. If you run the pink secondary spring, it is already coil binding even on that 3-3 setting.

Don't let them talk you in to that expensive dual spring. I have one of those here. Don't go that route, stick with the single std spring. The Dual spring is not needed nor wanted on the the Winder. They just make more heat and put less power to the track. I never used it on the 1200 either.

What's the difference? I'm guessing nothing more than what we used to call a heavy turbo slug, which was just a deep set heavy metal slug in each slider to get enough weight in for the HP. I ran them on my turbo 1200, but not sure they are needed in the 998 as it turn higher RPM and doesn't...

At sea level its closer to 300HP, at altitude I suspect you'd be up at 270 or so I suspect. The higher the boost of course the more intake heat as you know already. The stock turbo has made 400 at mid 30's for boost on the pro-mods, but they only make 5 second blasts at that. Doesn't mean it...

Do it. Nothing wrong with the PB80's at all. You'll need the holder for install and tuning, along with a special puller.