31
General Two Stroke Talk / Engine choice
« on: May 12, 2013, 09:11:24 AM »
that would be a fun little bike to ride. much like the 750 kawasaki triples mounted in ZXR750 chassis. they would be wicked to ride!
News:
Like the Phoenix rising from the ashes Two Stroke Motocross is reborn!
Show Posts
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
32
General Two Stroke Talk / TRIBORON!!!!!!
« on: May 12, 2013, 02:16:10 AM »
Thats alot of claims they are making, and pitty their technical documents arent in english for me to read through.
Unfortunately there are alot of 2T oil companies making wild claims so its hard to tell which is bull **** and which is truth.
(I'm not saying that this brand is BS but there are alot of claims out there)
For instance, Kart racers are loving the new Castor/Synthetic/ceramic blend of oil made by Xeramic.
The reason why I beleive this companies claim is that it doesnt just state that their product is better due to using "premium base stocks". because that is expected in all premium 2T oils.
They use a blend of premium base strocks blended with castor oil (for high temp protection) and they also replace the PTFE (teflon) aditive with nano sizes ceramic particles which is 10x sliprier than teflon and dont break down at high temperatures, even during a sezure condition.
http://xeramic.com/
Unfortunately there are alot of 2T oil companies making wild claims so its hard to tell which is bull **** and which is truth.
(I'm not saying that this brand is BS but there are alot of claims out there)
For instance, Kart racers are loving the new Castor/Synthetic/ceramic blend of oil made by Xeramic.
The reason why I beleive this companies claim is that it doesnt just state that their product is better due to using "premium base stocks". because that is expected in all premium 2T oils.
They use a blend of premium base strocks blended with castor oil (for high temp protection) and they also replace the PTFE (teflon) aditive with nano sizes ceramic particles which is 10x sliprier than teflon and dont break down at high temperatures, even during a sezure condition.
http://xeramic.com/
33
General Two Stroke Talk / troubles troubles troubles
« on: May 10, 2013, 10:36:15 AM »
there you go then, talke your bike to a machine shop and have them make you the two spacers
if your a newb and they need to measure everything for you it might be 2 hrs of their time so maybe $100-150 bucks
but if you know someone with a lathe it will only cost you some beers!
if your a newb and they need to measure everything for you it might be 2 hrs of their time so maybe $100-150 bucks
but if you know someone with a lathe it will only cost you some beers!
34
General Two Stroke Talk / KTM 2014
« on: May 10, 2013, 12:14:41 AM »I'll have to disagree on this again.. Yes the V Force has a bit more surface area.. but they are also known to suck reeds out of position. (They are not screwed to the reed block like the Rad Valves)
The V force is also a 2 piece unit (the block and intake) extra o ring/gaskets more room for failure (DNF)
We have done tons of testing on Jeremys YZ 250's with Boyesen and V Force. No more V Force.
KTM does thorough testing, for them to switch to Boyesen there was a good reason and it's not cost savings.
Vforce 2's are where its all at.
Single piece manufacturing
Properly fastened reeds
all the issues you mentioned there werent a problem on the 2's
Thats why a few of us have a decent Vforce2 stockpile!
but in saying that I've used 3's and NEVER had an issue
35
General Two Stroke Talk / troubles troubles troubles
« on: May 09, 2013, 03:11:19 AM »
if the rims fit between the forks and swingarm then stop stressing.
All you need to do is:
A, Find a machine shop to make you the axle, sprocket and brake spacers that you need
OR
2, Take your excel wheels and get a wheel shop to lace them up to your stock hubs.
If you want it to look pretty then you can have your OEM hubs polished, powdercoated or anodised prior to being relaced.
easy as pie.
All you need to do is:
A, Find a machine shop to make you the axle, sprocket and brake spacers that you need
OR
2, Take your excel wheels and get a wheel shop to lace them up to your stock hubs.
If you want it to look pretty then you can have your OEM hubs polished, powdercoated or anodised prior to being relaced.
easy as pie.
36
General Two Stroke Talk / KTM 2014
« on: May 09, 2013, 02:12:02 AM »
I think we can yet again finally put the rumors of DFI 250SXs to bed... untill next year when the same bull**** rumours resurface
PS: just enough changes made so that its not BNG... its an interesting marketing technique... making lots of little bull**** changes that dont actually cost anything to put through the R&D process, but allows you to pop something on a brochure.
They update them with a few little bits each year, for instance the frame they changed last year and the rear suspension system the year before and the frame change again the year before that, this year the main change was the reed valve to save other people from having to spend money upgrading to the boyesen unit.
Damn why can't they develop them as fast as Yamaha or TM or even Husqvarna, KTM are just so stagnant in comparison.
Thats the first time I've hear the word upgrade and boysen in the same sentence! wow!
Your the only person that I've ever heard give Boyesen a bad name. The Vforce is just a cheap plastic reed cage in comparison to the Boyesen unit, loads of people around here fit them to their KTMs as an UPGRADE. The guy who had my old EXC before me had fitted one to that along with a Power wing and an FMF pipe and he's a millionairre so I don't think he would of done that because he wanted a cheaper reed cage on his new bike.
Numerous back to back dyno runs prove that the Vforce and Rad valve are equal through the bottom end and midrange, with the Rad-valve running out of steam in the top end as the vforce's continue making more power in the top end and overrev.
The main difference between the two set ups is:
The boysen has a single V comprising of four reed petals
The Vforce has a double V comprising of eight reed petals
4 large reed petals do not have the same reed rip surface area as 8 reed petals, end of story.
reed tip area is where the power is.
37
General Two Stroke Talk / KTM 2014
« on: May 08, 2013, 02:31:40 PM »
I think we can yet again finally put the rumors of DFI 250SXs to bed... untill next year when the same bull**** rumours resurface
PS: just enough changes made so that its not BNG... its an interesting marketing technique... making lots of little bull**** changes that dont actually cost anything to put through the R&D process, but allows you to pop something on a brochure.
They update them with a few little bits each year, for instance the frame they changed last year and the rear suspension system the year before and the frame change again the year before that, this year the main change was the reed valve to save other people from having to spend money upgrading to the boyesen unit.
Damn why can't they develop them as fast as Yamaha or TM or even Husqvarna, KTM are just so stagnant in comparison.
Thats the first time I've hear the word upgrade and boysen in the same sentence! wow!
38
General Two Stroke Talk / KTM 2014
« on: May 08, 2013, 10:51:55 AM »I think we can yet again finally put the rumors of DFI 250SXs to bed... untill next year when the same bull**** rumours resurface
PS: just enough changes made so that its not BNG... its an interesting marketing technique... making lots of little bull**** changes that dont actually cost anything to put through the R&D process, but allows you to pop something on a brochure.
39
Technical / How much porting do you really need to do it you bore your cylinder over?
« on: May 08, 2013, 07:20:37 AM »Spacer plate to lift cylinder equal to longer rod length.
Doesnt the later RM have a longer rod and therfore a taller cylinder?
or did they balance the increased rod length via a shortened piston compression height so that no mods are required?
Im not sure.
But the engine or cylinder swap is definitely doable and Im sure many have done this mod too!
40
Technical / How much porting do you really need to do it you bore your cylinder over?
« on: May 07, 2013, 01:20:24 PM »
yes... and?
The frame mounts dont care how long the rod is when your doing an engine swap
But if you wanted to do just a cylinder swap, a longer rod never gets in the way.
there are many ways around that.
1.cylinder mods
2. install the rod, piston and cylinder from the later model RM
The frame mounts dont care how long the rod is when your doing an engine swap
But if you wanted to do just a cylinder swap, a longer rod never gets in the way.
there are many ways around that.
1.cylinder mods
2. install the rod, piston and cylinder from the later model RM
41
General Two Stroke Talk / Breaking News!
« on: May 06, 2013, 10:49:30 AM »This is a completely retarded idea and they waste of space that thought it up needs to find another job. All this is going to do, is make the open class more expensive. Need an example? All the KTM 350SXF is is a high revving 450. apart from the 2 pound difference. Makes MORE horsepower than the CRF450R just at a higher RPM. It can run with the big 450s, at a higher RPM. Thats all this is going to do. Although the extra 300ccs for the two stroke is a start... But it needs to be equal.
I'll bet my left nut that if this gets passed, and all the japs start pumping out 400cc four stonks, not one of them will loose any major peak horsepower.
Its a brilliant idea (FOR US!)
make the 4T even more expensive to run, while the factory 300 2T lasts all season!
42
General Two Stroke Talk / Breaking News!
« on: May 06, 2013, 10:46:05 AM »
in motogp all engine covers have seals on then. you cant even adjust the valve clearances without breaking the seal!
43
General Two Stroke Talk / Breaking News!
« on: May 05, 2013, 09:29:18 PM »
Not bad!
Might even get ourselves some OEM Japanese 300s out of this!
Might even get ourselves some OEM Japanese 300s out of this!
44
General Two Stroke Talk / Explain this
« on: May 04, 2013, 09:56:42 PM »
The "S" on the cases does in-fact verify that superman built this one.
45
General Two Stroke Talk / Engine choice
« on: May 04, 2013, 09:55:03 PM »Ok, screw this!!! I'm gonna do something smaller... Like a Zundapp KS125 1976. Just gotta build another seat and strip it of everything unecessary and it'll be one sweet cafe racer.
just attach some fake cooling fins to an RM motor
