went to delavan lake radar run today with my viper and a customers sled that has my lake race turbo on it..... this is a stock 05 rx-1 chassic that has a speed track and ice picks, my lake race turbo set-up on it, with a free flowing exhaust, 10-1 low compression pistons, and carrillo rods for piece of mind when running higher boost levels. the sled is not lightened at all, and the best part is you can install the quiet exhaust, lower the boost to 7.5 lbs, change the track to a trail studded track, fill with premium pump gas and go trail riding on monday. the base line modified viper ran 110 mph last week, this week the viper ran 112mph, the rx-1 turbo ran 131.7 mph last week, and this week the rx-1 turbo ran 134mph with no changes from last week, so it is safe to say the track was 2 mph faster than the track we were on last week. we increased the boost alittle and added some weight to the clutch, ran 138mph and was bouncing off the rev limiter, we added more weight in the clutch, (were running 370 grams now) and ran 140 mph. next week we will adjust the gear, (you could hear the rpms start building at the end of the track showing it was out of gear), add some more weight to the clutch, and turn the boost up abit more. we started the day at 19 lbs...335hp, and now were around 22 lbs...360hp, plenty more left in it, well just keep bringing it up slowly. special thanks to bill morrelli, he is the guy who i asked to drive the sled when i got there, my normal driver couldn't make it, and bill seemed foolish enough...lol. i have to tell you, not many people can hop on a 335hp sled and drive it as well as bill did, by the end of the day he was handling 360hp and running 140 mph... thanks again bill, and also thanks to scott kenaway, scott helped us changing the clutching set-ups, and saved my new jacket from looking like my old jacket. lol. scott also ran acouple times down the track and ran 138 mph getting in and out of the throttle accouple of times. its incredible to think that a full bodied stock weight sled that is trailable, can be made into a weekend warrior in acouple of hours, run 140 mph in 1000 ft, get changed back to trail form in acouple of more hours, and ride down the trail getting as high as 18 mpg. four strokes are the future, there capabilitys are far greater than initially expected, and they continue to improve with each passing year. i have to hand it to yamaha motor corp for making the rx-1 4 stroke... at first i compared it to the arctic cat thunder cat for its incredible base from which to extract major amounts of horsepower, and still be trailible. but with the bullet proof engine they have delivered, and the boost were able to run through it, we can take it to a level that is far above and beyond the 2 strokes. jeff
SIMONS CPR lake race turbo...140mph in 1000 ft!!!!!
- Thread starter Simons CPR
- Start date
MEAT
Expert
Thats amazing. Wish I could have been there.That thing in the mountains would be plain stupid. I cant imagine holding on to that power going uphill.No need to lighten up something with that kind of pull.
HyperMax
Veteran
2xcelr8
Extreme
I went to the delavan radar runs expecting (hopeing!) to run 100 in a 1000ft with the rx1 today. ( I did! 
) I was'nt expecting to be Jeff Simon's personal driver!!!! I know Jeff pretty well, but when you go and say hi, glad you could make it, and he replys with- here's the key, take the viper and see how it goes! Then I get back from running 112 and he says, you want to take the rx1 with lake race turbo?? Are you kidding me??? OF COARSE I WILL!!!!!! I made about 5 passes. I ended with top speed of the day with 140! The sled is undescribable! When the front end comes up you either get off the throttle or commit and hopefully ride it out!! 
I can't say enough about the sled or Jeff Simons for putting his product out for us to enjoy and for being the type of guy to say,"hey Bill , you wanna run the turbo?" 
Just let me know when and where and I'll drive for you anytime!! Thanks again for an Unforrgetable day!! By the way, Now I have to decide-trail turbo or lake race!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Bill Morelli
) I was'nt expecting to be Jeff Simon's personal driver!!!! I know Jeff pretty well, but when you go and say hi, glad you could make it, and he replys with- here's the key, take the viper and see how it goes! Then I get back from running 112 and he says, you want to take the rx1 with lake race turbo?? Are you kidding me??? OF COARSE I WILL!!!!!! I made about 5 passes. I ended with top speed of the day with 140! The sled is undescribable! When the front end comes up you either get off the throttle or commit and hopefully ride it out!! I can't say enough about the sled or Jeff Simons for putting his product out for us to enjoy and for being the type of guy to say,"hey Bill , you wanna run the turbo?" Just let me know when and where and I'll drive for you anytime!! Thanks again for an Unforrgetable day!! By the way, Now I have to decide-trail turbo or lake race!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Bill Morelli
2xcelr8
Extreme
I just get done typeing and Hypermax(Scott) has a pic of the turbo (with him on it) (138 that pass 
) Lots of fun, hey Scott!
) Lots of fun, hey Scott!
2xcelr8
Extreme
One more quick note- 2 new mach z's went 101! So I think we are in the same ball park with ecp and cpr-speedshops help! 
Bill
Bill
HyperMax
Veteran
It was a privilege and a pleasure to turn wrenches for the Simons CPR team at Lake Delavan.
What a ride on the lake race turbo RX 1. Notice in the picture the ice chip spray!!!
My Simons CPR SRX also performed great at Delavan. Running consistant 112's. Thanks Bill M for making a couple passes with it. Kind of slow compared to the turbo though...
What a ride on the lake race turbo RX 1. Notice in the picture the ice chip spray!!!
My Simons CPR SRX also performed great at Delavan. Running consistant 112's. Thanks Bill M for making a couple passes with it. Kind of slow compared to the turbo though...
adirondac blue
TY 4 Stroke Junkie
126 IN 1000 FT
Went to the lake today, finally put some shiesels in my track. Ran 110 in 660 feet, then ran 126 in 1000 feet (11 lbs). Got to race a new hooper 1400 trail sled ( all chiesels) , beat him my two sleds. AWESOME Jeff you will be getting some inquires this week about the turbo.
Went to the lake today, finally put some shiesels in my track. Ran 110 in 660 feet, then ran 126 in 1000 feet (11 lbs). Got to race a new hooper 1400 trail sled ( all chiesels) , beat him my two sleds. AWESOME Jeff you will be getting some inquires this week about the turbo.
Coppy from www.MC-XPRESS.COM
RX1 TURBO
He did it again.....a new Swedish record!
Jokkmokk Friday the 26th of March 2004:
257,14 km/ h
RX1 TURBO
He did it again.....a new Swedish record!
Jokkmokk Friday the 26th of March 2004:
257,14 km/ h
what's that in mph in what distance.
grader
TY 4 Stroke Master
257.14km =160.71mph
