KnappAttack
24X ISR World Drag Racing Champion
- Joined
- Feb 19, 2004
- Messages
- 4,846
- Reaction score
- 6,101
- Points
- 1,733
- Location
- Welch MN
- Country
- USA
- Snowmobile
- 2023 Sidewinder LTX-LE
2017 Sidewinder LTX-LE
Ted, 126-128 is excellent MPH in 660. That is right there with the best 1000 pro-stockers. ET wins races as you know anyway. Pretty damn good for first time out, shakedown runs. I'm not sure what Freddies talking about. 148 is Where I would expect Johns turbo open-mod to be on the ice. 148 seems a little unrealistic for a two-stroke open mod. 135-136 would be a little more normal. Mike
our asphalt sled runs 144 mph in 660 ft at union grove, and 147 mph at martin mich,(much better track). it weighs 580 lbs and has 500 plus hp. we are not fully using all the power it has to offer, because it is hard to harness that much power consistently, the first time we turned the power up on the sled we gained 8 mph, but only gained 1/2 a tenth of a second due to the power increase making the sled misbehave. i would expect it to run allitle less mph on ice due to rolling resistance over studs. i'm guessing you would lose 2-4 mph on ice.
as you know ted, setup is everything, it sounds like your off to a good start, especially for the first time out with that power to weight combination
the lighter you can make the sled, the easier everything else will come as you increase power. i need to try and lighten our sled more, the additional power increase we just gave it makes it a real tuning challenge. we have already run a 8.05 at 159 mph in the 1/4 with tim in and out of the throttle all the way down the track to keep it from spinning so much, compared to our runs last year which could run 8.0s all day long at 170 mph in the 1/4, and the best run of a 7.97 all being full throttle runs. sometimes less can be more in the drag racing world, it just takes a good tuner with an open mind and the time to do it. alot of people don't realize that the higher hp and higher torque 4 stroke turbos require alot different tuning mentality than the 2 strokes. its a whole new world, but when you lock into it, (like it sounds you have) the 2 strokes don't have a chance. jeff
as you know ted, setup is everything, it sounds like your off to a good start, especially for the first time out with that power to weight combination
the lighter you can make the sled, the easier everything else will come as you increase power. i need to try and lighten our sled more, the additional power increase we just gave it makes it a real tuning challenge. we have already run a 8.05 at 159 mph in the 1/4 with tim in and out of the throttle all the way down the track to keep it from spinning so much, compared to our runs last year which could run 8.0s all day long at 170 mph in the 1/4, and the best run of a 7.97 all being full throttle runs. sometimes less can be more in the drag racing world, it just takes a good tuner with an open mind and the time to do it. alot of people don't realize that the higher hp and higher torque 4 stroke turbos require alot different tuning mentality than the 2 strokes. its a whole new world, but when you lock into it, (like it sounds you have) the 2 strokes don't have a chance. jeff
Ted Jannetty
TY 4 Stroke God
- Joined
- Nov 24, 2003
- Messages
- 2,010
- Reaction score
- 15
- Points
- 1,198
- Location
- Waterbury Ct.
- Website
- www.jannettyracing.com
Mike, Jeff, I appreciate your input, Thank You!
You guys have done what most would think impossible, My Hat is off to you, and you have the dyno sheets, time slips, and video to prove it.
580 lbs. and over 500 HP for 147 mph in 660 ft. is more of what I would expect.
I have taken pretty much everything I can off the sled to make it light, short of drilling holes in the chassis and going to exotic lightweight parts there is not much room to lighten these tanks, I might be able to remove the rest of the grills and remove the foam from the panels but that is about it.
I am still on Yamaha Clutches with STM, Dalton and Ski Doo tuning parts.
I have a pretty good handle on the clutching and know what direction I need to go with what I have to work with, so I am working on the ET.
The highest I have engaged is 5000 so far leaving off fast idle, not using studder box yet.
I know, I am taking a chance with Stock clutches but I have also taken every precaution and watch them carefully, I also Know what your going to say, and I am with you.
My Goal is to see how fast I can get a Stock 4000 mile trail motor to go in a well thought out combination of boost, chassis, and cluthing.
I don't think 5.0 et at 130+ mph is out of the question.
I have a box of parts to test yet so I will get it there sooner or later.
The Brower Timing system is on order
Maybe if I still have this one in the Spring I will put it on the asphault and see what I can do there.
Cheers!
You guys have done what most would think impossible, My Hat is off to you, and you have the dyno sheets, time slips, and video to prove it.
580 lbs. and over 500 HP for 147 mph in 660 ft. is more of what I would expect.
I have taken pretty much everything I can off the sled to make it light, short of drilling holes in the chassis and going to exotic lightweight parts there is not much room to lighten these tanks, I might be able to remove the rest of the grills and remove the foam from the panels but that is about it.
I am still on Yamaha Clutches with STM, Dalton and Ski Doo tuning parts.
I have a pretty good handle on the clutching and know what direction I need to go with what I have to work with, so I am working on the ET.
The highest I have engaged is 5000 so far leaving off fast idle, not using studder box yet.
I know, I am taking a chance with Stock clutches but I have also taken every precaution and watch them carefully, I also Know what your going to say, and I am with you.
My Goal is to see how fast I can get a Stock 4000 mile trail motor to go in a well thought out combination of boost, chassis, and cluthing.
I don't think 5.0 et at 130+ mph is out of the question.
I have a box of parts to test yet so I will get it there sooner or later.
The Brower Timing system is on order
Maybe if I still have this one in the Spring I will put it on the asphault and see what I can do there.
Cheers!
Blue shadow
TY 4 Stroke Guru
How much boost you are running Ted?
we have a horrible 60 ft time on asphalt trying to nurse it out of the hole without causing problems, (1.48 60 ft time) but we do run 5.05 in 660 ft even with that horrible 60 ft time. thats the double edge sword of having too much horsepower, et will suffer if setup isn't right, but mph will always rule. if you work hard you can have them both, but be prepared to put in some long hours, next year our hard work should pay off with a mid 7 second run in the 1/4 mile, but its been a long battle with the new power level were at. i think the stock clutch is ok for up to 325 hp with proper clutching parts, i think i pushed mine to 360 hp before i changed clutches. jeff
Ted Jannetty
TY 4 Stroke God
- Joined
- Nov 24, 2003
- Messages
- 2,010
- Reaction score
- 15
- Points
- 1,198
- Location
- Waterbury Ct.
- Website
- www.jannettyracing.com
Blue shadow said:
20 right now.
