Yamaha TRX850 Enthusiasts Forum

full akrapovic- fcr41,s every thing else standard
will post up results when i can

dillthedog wrote:full akrapovic- fcr41,s every thing else standard
will post up results when i can

Do you have a before chart?

no unfortunatly not

OK, so lets play guess the bhp!!

Nearest one wins a goldfish in a bag.

I'lll go with ............ 88.

trixynut wrote:OK, so lets play guess the bhp!!

Nearest one wins a goldfish in a bag.

I'lll go with ............ 88.

Well, the setup should be good for ~10hp so my guess is 80hp at the rear wheel...89 at crank.

is that all

dillthedog wrote:is that all

Ten HP on top on a TRX i think is a lot!!
...i would have tossed in a K&N also so it breathes all thru (you said all else was standard)

it has fcr,s with foam velocity stack filters

dillthedog wrote:it has fcr,s with foam velocity stack filters

Heh, my bad....of cource you should take everything off the FCR´s!!

Dyno will measure rear wheel hp. That set-up should add 10 over standard, so my guess is still ........ 88bhp which would be a very respectable increase over the standard 78bhp!

89.2

trixynut wrote:Dyno will measure rear wheel hp. That set-up should add 10 over standard, so my guess is still ........ 88bhp which would be a very respectable increase over the standard 78bhp!

Yeah, only thing is that TRX is 79 on the crank according to Yamaha´s "big book"...not rear wheel.

My guess would be 86 at the wheel.

depending on the correction factor used it can read anything you like, but I'll got for 85 (as kev nicked the 86 I was going to have)

86.7...........but i hope its more