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Old 02-02-2013, 06:23 PM   #1
jub jub OP
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Question?

Anybody here that can relate an old school open class two stroke to a modern day 450? I talked with a Honda rep today that said a modern day 450 would wax ass on an old school two stroke 450.

What saith thee MoFos?
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Old 02-02-2013, 06:28 PM   #2
Pro_Marinero
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Why did 450f's race in the same class as 250 2ts?

I've ridden both. Most people today have no idea what a piped and ported open-class 2t is capable of. There is nothing like it when the pipe hits and you make the jump to hyperspace... :eek
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Old 02-02-2013, 06:32 PM   #3
Tellydoug
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Quote:
Originally Posted by jub jub View Post
Anybody here that can relate an old school open class two stroke to a modern day 450? I talked with a Honda rep today that said a modern day 450 would wax ass on an old school two stroke 450.

What saith thee MoFos?

He was probably smoking crack and has never been on an old 2t with lots of power, stiff handling, and minimal braking.
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Old 02-02-2013, 06:40 PM   #4
jub jub OP
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Thank you guys. That is what I thought. New school has to double the displacement to make the grade.

I had a YZ465 that was nasty fast. I'd love to put it up against a modern day, 5 valve four stroke.
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Old 02-02-2013, 06:43 PM   #5
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Thanks for reminding me that Supercross is on tonight
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Old 02-02-2013, 06:46 PM   #6
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He was probably comparing 2013 4t shocks to 1985 2t shocks. If you put those things in the same chassis... my money is on the two-strokes

Not that I ever did (or even could have) wrung one of those things out

But that is a time machine worth travelling through
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Old 02-02-2013, 06:47 PM   #7
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He obviously never rode a Yamaha YZ 465....
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Old 02-02-2013, 06:48 PM   #8
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That 465 wouldn't hold a candle to a decently tuned KX500 or a CR500.
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Old 02-02-2013, 06:48 PM   #9
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Thanks for reminding me that Supercross is on tonight
Thanks for reminding me. Just checked the menu and it looks like racing from Angel Stadium at 10:30 on speed. Please don,t let it be the lights!
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Old 02-02-2013, 06:49 PM   #10
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I had a CR500...

...for about two weeks.


I swear that fucker was tryin' to kill me.


.
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Old 02-02-2013, 06:56 PM   #11
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I did a bunch of welding for this guy . he puts older 2 strokes in modern chassis

http://www.mps500af.com/
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Old 02-02-2013, 06:56 PM   #12
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Quote:
Originally Posted by WARRIORPRINCEJJ View Post
I had a CR500...

...for about two weeks.


I swear that fucker was tryin' to kill me.


.

That's the beast I was going to reference. The CR500s were the two wheeled wicked witch of the dirt. It'd love you until it got on the pipe then it'd tear your arms off and you could barely keep your feet on the pegs.

I had a KTM 520 that tried to tear my arms out too, but the ferocity of the CR still scares the piss out of me.
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Old 02-02-2013, 07:09 PM   #13
Donkey Hotey
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Quote:
Originally Posted by jub jub View Post
I had a YZ465 that was nasty fast. I'd love to put it up against a modern day, 5 valve four stroke.
The older you get, the faster you were.

I had a YZ465 as well. Yeah, it was fast. No, it wasn't THAT fast. I have a well respected friend who regularly raced intermediate class in west coast Grand Prixs before moving away a couple of years ago. He reassured me that a modern 450 four stroke would kick a CR500s ass.

Edit: hell, here he is actually addressing this very issue--Nate Evans, partway down the page:
http://www.dirtrider.com/tests/141_0701_size_matters/

A YZ465 would easily get beaten. Mine was on the Storz dyno just before I bought it and it put out a peak of just a bit over 40 horsepower.



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Old 02-02-2013, 07:25 PM   #14
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What was a CR500, 55-60 horsepower? The modern 4s might be a little quicker, wax ass, I dont know about. Old CR motor in a modern frame, all bets are off.
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Old 02-02-2013, 07:32 PM   #15
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One of the mag's just did a story on this..A KTM 450, 350 and a 250 Smoker..everyone felt faster on the oil burner..everyone was faster on the 450..a four stroke just makes traction easily where the 2 stroke requires something of the rider..namely clutch control..
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