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2ooosrx

TY Advertiser
Vendor
Joined
Nov 23, 2003
Messages
338
We have developed an all in one speed upgrade for your MPI 190 turbo SR Vipers. This kit includes a new lower gear, hyvo chain, machined helix with overdrive acceptance, secondary spring (set at 3-3), and secondary washers. We have seen drastic improvements over stock gearing/clutching as this kit allows your Turbo SR Viper to stretch its legs. Our testing has shown the engine being loaded at ~8600 RPM and climbing up to ~8800 RPM after a long pull (200 lb rider). This kit is ordinarily listed at $420 but is available to all ty members for $395. This kit is a must have to get that power to the ground!
V-1 Speed Kit.jpg
 
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This will still rquire clutching work because we have all seen dyno #'s that prove if running quiet muffler vs. aftermarket the HP #'s are drastically different. and the gearing change will change it also.
 
This kit is setup specifically for an SR Viper with a bolt on MPI Turbo kit. As you increase HP from this setup, additional clutching tweaks may be required (Many Variables).
 
What kind of top end are we talking about? How much more mph?

Thanks
Jeff
 
When running a trail track and studs at st germain last year, this exact setup ran 105 mph in 1000 ft with the track spinning for the first 100 or so feet. With a proper track, i would run closer to 108-109. As far as top speed, it is well into the 116-119 range on radar in hardpack conditions.
 


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