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-   -   Top speed of a piped YFZ 450? (https://atvconnection.com/forums/yamaha/188719-top-speed-piped-yfz-450-a.html)

RAWYFZ1973 01-25-2005 01:28 AM

Top speed of a piped YFZ 450?
 
Anyone one ever checked the top speed of a piped YFZ450. Nothing else just piped and rejetted stock gearing and tires no other mods.

pendejo 01-25-2005 01:57 AM

Top speed of a piped YFZ 450?
 

It will have the same top speed as stock.

2fun 01-25-2005 05:45 AM

Top speed of a piped YFZ 450?
 
As pendejo said, it will be the same, but it will get there quicker.
The YFZ (in stock trim)(according to Dirt Wheels) did not top out because it lacked power, it topped out because it hit the rev limiter. So reardless of what you do to improve power, it will not increase in top speed. Only gearing changes/different tire sizes, or an aftermarket rev limiter with a higher RPM limit will change the top speed of the YFZ.

RAWYFZ1973 01-25-2005 07:54 AM

Top speed of a piped YFZ 450?
 
Ok thanks for the info. Before I put the High comp piston, TM42, and the cam mod in mine I ran it next to a friends crotch rocket and it topped out at 84 which is faster than they say it should run in stock form.

D3athShad0w 01-25-2005 07:58 AM

Top speed of a piped YFZ 450?
 
678.2334 MPH give or take current wind velocity

Gwinnwarrior 01-25-2005 08:54 AM

Top speed of a piped YFZ 450?
 
just a shade over 7.8 mph.........only if its a cobra pipe!!!!j/k ....no clue

BigScary 01-25-2005 11:42 AM

Top speed of a piped YFZ 450?
 
at least 245

radfastdude7777777 01-25-2005 04:36 PM

Top speed of a piped YFZ 450?
 

Originally posted by: RAWYFZ1973
Ok thanks for the info. Before I put the High comp piston, TM42, and the cam mod in mine I ran it next to a friends crotch rocket and it topped out at 84 which is faster than they say it should run in stock form.
I hear those speedos are not too accurate.

Raptorboy4life 01-25-2005 05:11 PM

Top speed of a piped YFZ 450?
 

Originally posted by: radfastdude7777777

Originally posted by: RAWYFZ1973
Ok thanks for the info. Before I put the High comp piston, TM42, and the cam mod in mine I ran it next to a friends crotch rocket and it topped out at 84 which is faster than they say it should run in stock form.
I hear those speedos are not too accurate.
The speedometer on the crotch rocket?? Yamaha is accurate.. so ive seen

What is TM42?? lol

RAWYFZ1973 01-25-2005 05:16 PM

Top speed of a piped YFZ 450?
 
TM42 is a mikuni 42 mil carb


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