2 stroke V8 in a dune buggy on the dyno.

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10-20-2010, 10:33 PM
onebadmollafolla

Quote:

Originally Posted by RealMcCoy

KTM is starting to bring the 2 stroke back... I'm very interested to see what they come up with in the next few years.

Some of the new 4 strokes are very cool, and they're awsome in the woods, but I haven't seen one yet that can pull my 14 year old CR500.

Hi. :)
10-21-2010, 12:12 AM
thor'svr4

to add fuel to the argument, was he faster on the 125 or 250f?
http://www.youtube.com/watch?v=diYiC...eature=channel
http://www.youtube.com/watch?v=32_Dxu1UVGM&feature=related

this video proves that insanely hot girls ride 4 strokes
http://www.youtube.com/watch?v=b_IE1sm5f10
10-21-2010, 12:48 AM
onebadmollafolla

Quote:

Originally Posted by thor'svr4

to add fuel to the argument, was he faster on the 125 or 250f?
http://www.youtube.com/watch?v=diYiCWoDM7g&feature=channel
http://www.youtube.com/watch?v=32_Dxu1UVGM&feature=related

this video proves that insanely hot girls ride 4 strokes
http://www.youtube.com/watch?v=b_IE1sm5f10

Completely different tuning between the two. Put a cam/s (odd setup) and high comp piston and it's quite different. I've gone head to head with worked KX500's and pulled on my itty bitty 450R. :)
10-21-2010, 01:36 AM
RealMcCoy

Quote:

Originally Posted by onebadmollafolla

Completely different tuning between the two. Put a cam/s (odd setup) and high comp piston and it's quite different. I've gone head to head with worked KX500's and pulled on my itty bitty 450R. :)

KX500's are slow... :)

Put a sand paddle on that thing and bring it out here.... We'll do some high gear pulls across the dunes and find out where the power is. :D

Don't get me wrong, I love the four strokes... If I wasn't puting all my money into a Stealth or three, I'd love to have one of each, But I think eventually I'll just compromise and build one of these.
http://www.servicehonda.com/cr500af05.html
10-21-2010, 02:07 AM
terrets

Quote:

Originally Posted by mb3000

2 stroke mx bikes ftw.

TOTALLY agree :D.....That thing was bitchin!
10-21-2010, 02:46 AM
onebadmollafolla

Quote:

Originally Posted by RealMcCoy

KX500's are slow... :)

Put a sand paddle on that thing and bring it out here.... We'll do some high gear pulls across the dunes and find out where the power is. :D

Don't get me wrong, I love the four strokes... If I wasn't puting all my money into a Stealth or three, I'd love to have one of each, But I think eventually I'll just compromise and build one of these.
http://www.servicehonda.com/cr500af05.html

Caught my typo. Take it to the bank as it's few and far between. ;) :p Sure, bring it out here. We've done sand paddle pulls for years out here. Last four years in a row has been a four stroke champ. Never participated myself, though.
10-21-2010, 03:39 PM
KeithMac

I`ve work on motorbikes for a living and would take a 4 stroke every time, 2 stroke`s are a liability!.

I`ve had 3 KTM`s in in the last month 2 EXC 200`s (one with a fooked crank, the other top end seizure) and an EXC 300 that had top end siezed (got a steel liner fitted to the barrel).

Worked on 2 Honda CRF250`s for routine servicing, only thing needed doing engine wise was the valve clearances..
10-21-2010, 03:57 PM
green-lantern

Quote:

Originally Posted by RealMcCoy

KTM is starting to bring the 2 stroke back... I'm very interested to see what they come up with in the next few years.

Some of the new 4 strokes are very cool, and they're awsome in the woods, but I haven't seen one yet that can pull my 14 year old CR500.

KTM makes some bad ass woods bikes. If I get back into it thats what I'm wanting to get.

I've had a lot of fun with the torque of the four strokes I’ve had but yeah my old 1985 CR500 was a freaking monster. It actually ran a lot like a 4 stroke with its low end power but I could still bonsai mud holes at 45 mph with the crazy top end. It wasn’t very user friendly to new riders though :lo5l: hell it wasn’t very user friendly to intermediate riders ether. When I got it, it had a new fender and silencer on it because it body slammed a potential buyer.
10-21-2010, 05:48 PM
thor'svr4

Quote:

Originally Posted by KeithMac

I`ve work on motorbikes for a living and would take a 4 stroke every time, 2 stroke`s are a liability!.

I`ve had 3 KTM`s in in the last month 2 EXC 200`s (one with a fooked crank, the other top end seizure) and an EXC 300 that had top end siezed (got a steel liner fitted to the barrel).

Worked on 2 Honda CRF250`s for routine servicing, only thing needed doing engine wise was the valve clearances..

tell me about it lol. when my valves/head started to go on my 05 in 09 (it had 4 years of hard racing on it, it had its time lol) i had to reshim all the time. i finaly just ended up rebuilding the head and the problem was solved. its not nearly as expensive as 2-stroke guys make it out to be.

since your a service tech ive gotta ask you one thing, have you ever seen transmission fluid leak out the little drain hole on the air box on any crf250r's? i had this happen once and the only reason i noticed it was because it actually covered my rear disk and swingarm. had i not lost lost some braking power i prob would have blown the motor because when i checked the trans fluid it was almost empty, but my motor oil was a little high. nobody could understand how the hell that happened. its been a longggg time so i cant remember what caused it, but i think it was the center case gasket. i know it was something in the bottom end though because after i rebuilt it the problem went away and never came back. honestly i thought it was a 'bad luck' type of thing since my honda's have been pretty good in general. but a few months ago a friend of mine brought it up and told me that another guy he rides with started having trans fluid come out the drain tube in the air box . have you ever had anyone bring you a crf250 with the same problem? im wondering if its more common than i thought.

And im not a big fan of ktm but do you think maybe it was just the owners fault the motors seized? Perhaps they ran to lean of a gas/fuel mixture?
10-21-2010, 05:59 PM
mb3000

Quote:

Originally Posted by thor'svr4

tell me about it lol. when my valves/head started to go on my 05 in 09 (it had 4 years of hard racing on it, it had its time lol) i had to reshim all the time. i finaly just ended up rebuilding the head and the problem was solved. its not nearly as expensive as 2-stroke guys make it out to be.

since your a service tech ive gotta ask you one thing, have you ever seen transmission fluid leak out the little drain hole on the air box on any crf250r's? i had this happen once and the only reason i noticed it was because it actually covered my rear disk and swingarm. had i not lost lost some braking power i prob would have blown the motor because when i checked the trans fluid it was almost empty, but my motor oil was a little high. nobody could understand how the hell that happened. its been a longggg time so i cant remember what caused it, but i think it was the center case gasket. i know it was something in the bottom end though because after i rebuilt it the problem went away and never came back. honestly i thought it was a 'bad luck' type of thing since my honda's have been pretty good in general. but a few months ago a friend of mine brought it up and told me that another guy he rides with started having trans fluid come out the drain tube in the air box . have you ever had anyone bring you a crf250 with the same problem? im wondering if its more common than i thought.

And im not a big fan of ktm but do you think maybe it was just the owners fault the motors seized? Perhaps they ran to lean of a gas/fuel mixture?

I always ran 40:1 for racing, instant horsepower over what factory reccomended. :suspect:

Was I running too lean?

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