[TheDarkCutlass]

Ok, so looking at a few options on what to do with some extra $ I might be able to put into my ride. One option I'm looking at is upgrading the performance of the 400. I've been out of the loop for that past 2 years, has there been anything spetacular in a performance accessory that's been released? I got Dr Pulley Sliders (which need to be changed, already worn out), but thats about it.

Does the Hit clutch provide a noticable performance improvement?

What is the best Slider weight in peoples opinion for take-off performance?

Anyone know the durability of the malossi belt? same as a stock? better? worse?

How are the J-Costa variators in the long-run? Better than just slider weights?

Other part of equation is replacing worn parts, are there any aftermarket options for the variator? fixed pulleys? clutch pulley's?

Any engine 'tweaking' things that people have discovered to inch out a few more ponies?

Any/all feedback would be much greatful =]

 

[qaz]

How much money are you willing to throw at it. Probably the best bang for the buck would be to put a bigger piston in it, say 450cc or if there is enough metal in there, 500cc. I have been told at a Suzuki dealership that the ecu can be reflashed. I was told by a top notch mechanic that raced snowmobiles that this scooter holds a lot of potential, just takes money!

 

[InfernoST]

Does the Hit clutch provide a noticable performance improvement?

IMO I wouldn't spend the money, I would just replace with an OEM unit possible the 5 shoe instead of the three shoe.

What is the best Slider weight in peoples opinion for take-off performance?

I found the 19g to work best.

Anyone know the durability of the malossi belt? same as a stock? better? worse?

Once again I would go with the OEM.

How are the J-Costa variators in the long-run? Better than just slider weights?

Stay Away, when they fail they almost take out your entire CVT and the cost of the repair just in parts is hair raising.

Other part of equation is replacing worn parts, are there any aftermarket options for the variator? fixed pulleys? clutch pulley's?

I replaced my second OEM clutch bell with a Polini Speed bell which worked great, it has larger ventilation holes, cooling fins around its perimeter and is much lighter.

Any engine 'tweaking' things that people have discovered to inch out a few more ponies?

I had positive results changing out the OEM Air Filter for a K&N, Iridium plug and the best bang for the buck has got to be the 19g DPS's

 

[Desert Rat]

When I bought my 07 used it had a J Costa in it. Failed big time at 13k. Lucky for me he also gave me the stock variator so didn't have to buy it. Still new belt & outside pulley wasn't cheap. I also replaced my stock clutch with a 5-shoe 08 model but didn't notice any difference. The biggest thing I did to get more performance was to buy my used 09 650.

 

[Bolzen]

Kinda agree with Desert, for performance just get the 650 or R1.

Also 19 gr DPS is more a cruising weight than taking-off, in Germany 16 gr are popular and known to produce best results.

400 is just good for what it is. Or rather not -- it is best

 

[TheDarkCutlass]

InfernoST:

Thanks for the input on the OEM stuff, think thats what I'll just stick with if I venture down this avenue. As far as the weights go, I honestly can't remember what size I have in there lol, its either 15g or 16g. Guess I'll just stick to what I already had, once I figure what that was.. I spend alot more time in traffic than highways.

And see you mention K&N, i haven't looked in a while, but did they finally release one for the newer 400? or is it a modified one?

 

[InfernoST]

And see you mention K&N, i haven't looked in a while, but did they finally release one for the newer 400? or is it a modified one?

They do now make one for the 07+ 400's.