new 2012 models

[gasgas200]

I recently read an article in a UK magazine in which they were interviewing Ivan Cervantes about moving to gasgas. although he wasn't giving much away he mentioned there might be a new 2 stroke model for 2012.Also does anyone know when the 2012 models usually start to appear ktm are already out with their models in the UK

[GMP]

After the dealer show, probably late summer. I'm sure Clay will let us know.

New 2-stroke? Maybe a 144 or a production version of that 152 special? That would be very cool.

[Clay]

My nephew, Rod, and I were in Spain three weeks ago and there was no mention of a new model for 2012.

[Todd5774]

Read in TBM this week that gasgas are releasing a new hybrid trials/trail bike along the lines of the scorpa t-ride/long-ride for 2012 there is a pic, and have to say not to impressed, and there is also a killer picture of Cervantes bike, will try and scan the article for those that can't get the magazine.

[gasgasman]

Here's that hybrid.......

http://www.gasgasmotos.es/en/trial/3...-randonne.html

[gasmonkey]

I'd guess thats the chinga engine???

[gg3]

Direct injection?Had a dicussion with another 2 stroke nut(KTM rider),about possible direct injection coming out 2012/2013.I brought up a point whether an expansion chamber,in it's current form, would be needed with DI.Can someone with more mechanical knowledge settle the arguement?

[noobi]

General consensus with DI 2 strokes is that an expansion chamber would probably not be necessary. As the main point of the pipe is to pull (scavenge) fuel/air through the chamber for superior combustion, if you are electronically controlling the delivery of fuel/air, then a pipe for scavenging purposes is not really needed.
I think..

[Keg]

Wouldn't the supercharge effect of air scavenging still be important.

[noobi]

Originally Posted by Keg

Wouldn't the supercharge effect of air scavenging still be important.

You can get achieve a similar effect to an expansion chamber with a tuned (specific) length of constant radius pipe, but on a much narrower band of RPM. I believe that electronic powervalves could be used to help simulate the 2 stroke powerband. The expansion chamber is only really important for high RPM operation, if you consider trials bikes, all 2 stroke trials bikes run constant radius or very nearly, exhausts.