Turbo Chat

[glengine]

Both Machines Bone Stock Like i mean BONE STOKE?

Havnt weighed the cat totally bone stock have weighed a nytro mountain that had just came from a dealership and it had about 2G of fuel in it and we weighed it.. It came in at 603lbs.. Thatwas with all fluids in it but like i said only 2 G of gas.. I`ll weigh a cat 1000 monday we have a couple that we are currently starting mod`s on..

 

[glengine]

And should have added shave some weight out of the NYTRO aswell

On the supercharged nytro that we weighed it had a holz r<ear susp in it..as well as a cr trunnel.. So that is a fair bit of weight removed off of the rear..

 

[Rucky]

And then what happens when you run the cat at a higher boostÉÉÉÉ

It KABOOMS 400 miles sooner.

 

[glengine]

Not usually if you are running good gas..

 

[Deano670]

Oh cmon there is lots more to get rid of!!!

 

[WRK]

It KABOOMS 400 miles sooner.

ven me no

For all those questioning reliability, heres my 2 cents. my tm7 has well over a 1000 miles on it now and has given me no grief. I run 10-12 lbs boost on ride the tar out of it. wide open pulls all day long. run straight track tek 111. I am finished for the year now and will likly do the crank bearings and top end to give me a summer project. but I do not think it needs it at this point.

 

[Powderlites]

Well guys I have went through most of this thread and I have built 2 stroke turbos that are still running with no motor work since 1994.
How setup is done is key on any turbo system.
How they are built is all about lag if any. effecency and most 4 stroke are pump gas and turn key.

Motors don't blowup from boost but from detonation same as 2 strokers.
Hurricane Racing (Dave Marshall ) makes 546 HP on RX1 and has made over 17 runs on dyno at over 500 HP.
Motor has to run 2000ft and he got a record with it.
I might have to jump back into some 2 stroke turbos kits and use what we have learned for last few years and make a real good kit.
Powder Lites Inc - Custom Manufacturer of High Quality Snowmobile Accessories

 

[Deano670]

Id love to see some really horny TWO STROKE TURBOS

 

[glengine]

Yah i'd like that also.. It is exactly true and correct that it's detonation that kills motors not boost..

 

[Modman]

Well guys I have went through most of this thread and I have built 2 stroke turbos that are still running with no motor work since 1994.
How setup is done is key on any turbo system.
How they are built is all about lag if any. effecency and most 4 stroke are pump gas and turn key.

Motors don't blowup from boost but from detonation same as 2 strokers.
Hurricane Racing (Dave Marshall ) makes 546 HP on RX1 and has made over 17 runs on dyno at over 500 HP.
Motor has to run 2000ft and he got a record with it.
I might have to jump back into some 2 stroke turbos kits and use what we have learned for last few years and make a real good kit.
Powder Lites Inc - Custom Manufacturer of High Quality Snowmobile Accessories

Some good points there. how often between runs does he tear it down though? And that motor only has to run for 2000 ft in a straight line at one elevation. Let's take it to the mountains, start at 2500 ft at -5C and run up to 9000 ft at +5C holding it wide open half the time. Talk to Chad Rebec of CR Racing and the owner of Rated R if you want some good insight into how it might possibly run.

The 1000's do require more maintenance, trust me......
You can run higher boost on the smaller displacements with greater longevity from the experience that we have had, they seem to be more tolerant of it.

If I were you guys, I would be cautious about throwing around the term "reliable" and "snowmobile" together in any sentence, 2 stroke or 4. It is a relative term - comparatively to one another, one sled may be more reliable than another on a given day, but there are so many factors that play into this that "reliable" is often a term used to describe which sled is better cared for and has a better maintenance record. I know some guys with "reliable" mod sleds and turbo two strokes that run with the four stroke turbo's, but the mod sleds get a complete overhaul twice a season and weekly they get a thorough check up, the four strokes are lucky if the owners check the oil. Is a sled truly "reliable" if it gets constant attention in the garage every week to be able to perform on the snow or is it "reliable" if all you have to do is pour in gas, add oil and go? Let's remember that the sport is about getting out and having fun enjoying great times with great friends, not keyboard racing... Just some things to think about.

 

[Deano670]

All to true the sled really is only as good as the rider and the WRENCHER

 

[Bambino]

ven me no

For all those questioning reliability, heres my 2 cents. my tm7 has well over a 1000 miles on it now and has given me no grief. I run 10-12 lbs boost on ride the tar out of it. wide open pulls all day long. run straight track tek 111. I am finished for the year now and will likly do the crank bearings and top end to give me a summer project. but I do not think it needs it at this point.

I noticed you never mention your constant clutching problems.

 

[mtndoctor]

Some good points there. how often between runs does he tear it down though? And that motor only has to run for 2000 ft in a straight line at one elevation. Let's take it to the mountains, start at 2500 ft at -5C and run up to 9000 ft at +5C holding it wide open half the time. Talk to Chad Rebec of CR Racing and the owner of Rated R if you want some good insight into how it might possibly run.




LMAO!
did you forget thats a nitro motor from a drag bike not a turbo gas motor. nitro fuel don't work below 70'F. insight LOL

 

[Modman]

LMAO!
did you forget thats a nitro motor from a drag bike not a turbo gas motor. nitro fuel don't work below 70'F. insight LOL

No, I didn't forget. Thank you for supporting my point though since Dave's sled is a one trick pony as much as Rated R is (nitro drag bike motor vs turbo "gas" motor in a drag sled/speed run sled). At 546 HP (in a climate controlled dyno room), I seriously doubt this is just a run of the mill turbo "gas" motor (if he is making that power on pump I'm very impressed). My point was that turbo and reliable are often thrown together but since everyone has their own definition of "reliable", we probably shouldn't say that they are (like the babied mod sleds vs the pull and go turbo's). IMO anyway.