Whats the top speed on my 400 ex

[DRusselltrx400]

Whats the Top speed on a stock 2005 400 ex?


Whats the top speed if you add fmf pipe, header and power up kit?

[miller821]

Stock is about mid 60's, i dunno with all the other stuff on it though.

[TRX23rider]

with allthe other stuuf onit wont really raise your top speed youll just get there faster. if you want a drastic increase in your top speed look into your gearing:D

[miller821]

Originally posted by TRX23rider
with allthe other stuuf onit wont really raise your top speed youll just get there faster. if you want a drastic increase in your top speed look into your gearing:D

Also possibly a cam.

[BlasterEaten250]

68 miles per hour.

[PolarisRider]

Originally posted by BlasterEaten250
68 miles per hour.

okay friggen math wizard.....lol

[BlasterEaten250]

Originally posted by PolarisRider
okay friggen math wizard.....lol my brother has a trail tech:p 68.7 to be exact:o

[miller821]

Originally posted by BlasterEaten250
my brother has a trail tech:p 68.7 to be exact:o

Lol i'm glad we have an exact speed.

[81 clark racing]

stock 68. i have full procircuit t4 pipe, modified air box , uni air filter, stage 2 jet kits, wb rev box and i was toping out at 78 with trail tech then i got my vavles adj an im toopin out at 83. my buddies have the same stuff as me and stage 2 hot cams and hes topping out at 86

[fwm416ex]

stock 68. i have full procircuit t4 pipe, modified air box , uni air filter, stage 2 jet kits, wb rev box and i was toping out at 78 with trail tech then i got my vavles adj an im toopin out at 83. my buddies have the same stuff as me and stage 2 hot cams and hes topping out at 86


78,83 and 86 mph.I am really doubting the accuracy of those numbers,Maybe in the back of a pickup truck!

[81 clark racing]

got those #s from my buddies trail tech soo good 1

[BlasterEaten250]

Originally posted by 81 clark racing
stock 68. i have full procircuit t4 pipe, modified air box , uni air filter, stage 2 jet kits, wb rev box and i was toping out at 78 with trail tech then i got my vavles adj an im toopin out at 83. my buddies have the same stuff as me and stage 2 hot cams and hes topping out at 86 a new rev box wont raise the top speed 15 mph. my brother has a new rev box and trail tech and he get nowhere near that.

[luvmyex]

167.002mph in a 1/8 mile:huh

[jordan_400ex]

Originally posted by BlasterEaten250
a new rev box wont raise the top speed 15 mph. my brother has a new rev box and trail tech and he get nowhere near that.


u didnt red it right.he had a lot more than just a rev box.

[firefighterjosh]

Originally posted by jordan_400ex
u didnt red it right.he had a lot more than just a rev box.

That post is 6 months old:ermm:

[troutman561]

1.245632244 x 10^4 mph



Actually that doesnt make sense because that means it would go 12,456.32244mph.... but you never know

[rooster300ex]

Originally posted by TRX23rider
with allthe other stuuf onit wont really raise your top speed youll just get there faster. if you want a drastic increase in your top speed look into your gearing:D

Yea you have to increase your engines redline, and gear your quad up for top speed to go faster on the engines redline in the highest gear. The more powerful your engine is the quicker you get there.