[confused] 100% wrong. Premium fuel and synthetic oil DO NOT make your sled faster. Might pro-long its motor life a little bit, but no performance gains at all.1980PolarisTXC340 said:
Higher octane fuel equals better motor performancejesse500 said:
100 % wrong.1980PolarisTXC340 said:Higher octane fuel equals better motor performancejesse500 said:
re-gear, re-clutch, re-jet and triple pipes (huge power gains). Make sure you track is good, and you have at least 120 studs.kws82590 said:faster top end
well thats good. How many studs? And I recommend triple pipes, they have HUGE power gains, but you need to re-jet and re-clutch with the pipes anyways, so it happens at once. You can re-gear as well, as it only like $60 to re-gear a sled.kws82590 said:i have a brand new track and studs...what one would you recommend? or what one would give me the most gain in top end?
You are right with the CC thing, I didn't even notice that. And you are also right about the fuel, a snowmobile that is designed to run on regular fuel benefits absolutely nothing when ran on premium, a motor that runs on 91 or higher as a minimum benefits to the higher octane level as the timing and compression ratio is adapted to it. 80 MPH is not what a stock 580cc triple will achieve, they will hit triple digits on a long run with proper jetting and traction.boody1981 said:Well a couple things: 1) your 94 XLT is a 580cc unless you've done something to the engine (600's came out in 95). 2) 1980polaristxc340, your half right, prem. fuel does mean better engine performance, but ONLY if that engine was designed to run on prem. fuel and the 94 XLT's weren't. 3) I think 80 mph would be top end for that sled, (real speed that is).
Your on track with pipes but your looking at big bucks and reducing the life of your engine 10 fold. You can re-gear safely, a tooth or so bigger on top sprocket. Make sure your jetted properly for the day and as far as traction, it looks like you got that covered. Other than that there is very little without drastically reducing the life of your engine.
Best of luck.
^^^This Post Says it all.....Perfect[thumb]TRIPLEB said:I have a 94 XLT- bone stock. It will easily push the speedo past the 100 mark on long WOT pulls ( I realize this isn't actual and speedos are off a little). But what I am getting at is those little 580 triples had plenty of top end stock right out of the box. They were geared tall from the factory- 21-39 and the stock clutching was actually very good for top end. Most people change the clutching and gearing in these sleds to make them quicker off the line and more low and mid-range scoot which will take away from top-end speed. The under hood sticker calls for 87 octane fuel- no advantage at all to running higher than what the sled requires- however, as 93polaris mentioned, I do run 92 prem to get away from the ethanol. You can add triple pipes and see some significant hp gains, but as mentioned you will need to re-jet, re-clutch and stay on top of the tuning for temp changes. [highlight=yellow]Myself, I would just leave it stock, make sure its tuned properly and just ride it! Even in stock form my little XLT has surprised a lot of newer sleds in its day. If you really want to go fast get an XCR 800.[/highlight=yellow]