ESE's works engine tuner

[jasonu]

Stock CRF150R motors are about 20. You would have to let them in to.

Yeah I thought that too. Maybe pre 1990 (or so) up to 85mxr's with stock carbs??? Certainly imposing a HP limit would be totally impractable to enforce.
Is it really necessary to change the eligability rules of a class that is already very well subscribed? The only change that has been mentioned in the last page or 2 of this thread that I think is worth considering is allowing a couple of cc's more to the watercooled 100's purely to allow more accessable piston/rings and that is only if it is true that the MB, RG400, TF100 etc pistons are no longer available.

[Kickaha]

Must be just me but I cant see why people seem to be trying to fix a class that isn't broken

[Sketchy_Racer]

Yeah I thought that too. Maybe pre 1990 (or so) up to 85mxr's with stock carbs??? Certainly imposing a HP limit would be totally impractable to enforce.
Is it really necessary to change the eligability rules of a class that is already very well subscribed? The only change that has been mentioned in the last page or 2 of this thread that I think is worth considering is allowing a couple of cc's more to the watercooled 100's purely to allow more accessable piston/rings and that is only if it is true that the MB, RG400, TF100 etc pistons are no longer available.

I agree with this, the rules don't need to be changed, there is nothing to fix, I just want a fast reliable two stroke to beat Richban with but I really want a two stroke motor that isn't 20 years old and isn't going to cost me more than a entire MX bike to buy just a motor.

Change the rules at least to allow KT pistons in MBs etc. I ran mine over size for a couple rounds illegally but I did a shit job of it and was slower and seized once a day minimum with the KT piston.

[Sketchy_Racer]

Must be just me but I cant see why people seem to be trying to fix a class that isn't broken

That's the point, it's not broken so we must work on changing things until it doesn't work. That is what I have learnt in the engineering world, I assume it applies to everything??

[TZ350]

... mx80. Standard they only make 20ish hp. Possibly keep them stock apart from the pipe. They'd probably fit nicely into a RS chassis as well.

I have a KX80 engine in the shed and an RS125 chasis. Now lets see, the MX80 and 85 already have a bigger carb than I am currently allowed, they are water cooled, six speed close ratio and have well developed inlet, transfer and exhaust ports plus blowdown STA to spare so no need to modify the ports, all thats required is a little freshen up, and thats easily done by the shop, so all good there. And in keeping with the lazy spirit of not doing any of it ourselves we could pay someone like Wob to make the pipe. So with a little dosh and no nouse the possibilities are 30+rwhp with little effort.

[Farmaken]

Why not let them have their KT pistons & 112cc







And a 24mm carb to go with it all

[jasonu]

Why not let them have their KT pistons & 112cc







And a 24mm carb to go with all

Because then ESE will ask for 135cc and the coal burners will want 165cc. Where will it end???
The Bucket formula seems to be working as it is so why mess with it?

[Farmaken]

But he is already making 30 RwHp so why would he need more cc`s ??

[Kickaha]

The Bucket formula seems to be working as it is so why mess with it?

Because rather than build a bike to the current rules people would like to buy/build a bike and get rules changed to suit

[TZ350]

The Bucket formula seems to be working as it is so why mess with it?

Absolutely .....

[husaberg]

Because then ESE will ask for 135cc and the coal burners will want 165cc. Where will it end???
The Bucket formula seems to be working as it is so why mess with it?

Must be just me but I cant see why people seem to be trying to fix a class that isn't broken

The point you are missing is the 4 strokes have already been given 27.5cc already. they can already use os pistons.
Why is it every time someone says give the F4's a few cc to allow the use of Kt100s pistions it turns into a debate about 80 and 85cc MX engines. gee.... stick to the subject would ya or i will pas a motion

[Grumph]

The point you are missing is the 4 strokes have already been given 27.5cc already. they can ude os pistons
Why is it every time someone says give the F4's a few cc to allow the use of Kt100s pistions it turns into a debate about 80 and 85cc MX engines. gee.... stick to the subject would ya or i will pas a motion

One point I will make is that an oversize MB/H 100 with the legal 24mm inlet restrictor is very competitive anyway....

No one is stopping anyone from using oversize pistons but then some tuning nous is required to get good reliable power with the inlet restriction.....tough shit, you can't buy experience.

Again, put up a remit - talking here does nothing.

[jasonu]

Yeah I thought that too. Maybe pre 1990 (or so) up to 85mxr's with stock carbs??? Certainly imposing a HP limit would be totally impractable to enforce.
Is it really necessary to change the eligability rules of a class that is already very well subscribed? The only change that has been mentioned in the last page or 2 of this thread that I think is worth considering is allowing a couple of cc's more to the watercooled 100's purely to allow more accessable piston/rings and that is only if it is true that the MB, RG400, TF100 etc pistons are no longer available.

The point you are missing is the 4 strokes have already been given 27.5cc already. they can ude os pistons
Why is it every time someone says give the F4's a few cc to allow the use of Kt100s pistions it turns into a debate about 80 and 85cc MX engines. gee.... stick to the subject would ya or i will pas a motion

See above in red.
Mate put in the remit and see what happens.

[husaberg]

See above in red.
Mate put in the remit and see what happens.

Sorry i did see it and thought it was speedpro you must type alike.
I was of course responding to the why change it in the quote i quoted.....
i looked at the MNZ site and i will do it but the MNZ isn't interested in F4 and F5 anyway.

Again, put up a remit - talking here does nothing.

Neither does the MNZ

[jasonu]

One point I will make is that an oversize MB/H 100 with the legal 24mm inlet restrictor is very competitive anyway....

No one is stopping anyone from using oversize pistons but then some tuning nous is required to get good reliable power with the inlet restriction.....tough shit, you can't buy experience.

Again, put up a remit - talking here does nothing.

There is no carb restriction for the 100cc 2 strokes, you might be thinking of the 125cc aircooled 2 stroke
24mm carb limit. (or did I miss read your post...)