05 TRX 480 pump gasser

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Mattonln

Active Member
Apr 10, 2012
#1
did a duner for a guy last week and figured I throw up the numbers. wasn't going all out on this one as this was one of my "budget port" jobs with the exception of adding +1 valves.

DPATV budget porting w/+1s - no decking/combustion chamber work
97mm cp 13:1
early hrc
42.5 fcr
dasa intake/exhaust
revmax box (junk)
pump gas with a stock clutch

before runs were HRC kit with same rev box and k/n
 

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Mattonln

Active Member
Apr 10, 2012
#3
all depends really. on this build with an hrc cam, it probably only picked up another 1 hp but we went with +1s because he plans to run a 208 sometime in the future. +1s show more with bigger cams and more displacement.
 

whoppes27

Active Member
Apr 9, 2012
#4
Great numbers Matt for a relatively mild build! What do you think it would do with more head work, 208, and bigger carb?
 

Mattonln

Active Member
Apr 10, 2012
#5
i would say 62/36 with a 208, decking and a 44fcr on 110. with a dyna and e85 it might push 65 if I set the squish tight
 

Mattonln

Active Member
Apr 10, 2012
#10
this guy weighs about 170 so i don't think it will have quite the load but we will see. i told him he could mix 50/50 if he wants to be on the safe side but should be fine for pump. what cam were you running with 12.5:1?
 

Dr. Beardface

Active Member
Apr 13, 2012
#14
Way to go! I have a very similar build with the same bore, cam, compression, and carb but with mystery porting and an FCI intake. Mine only makes 50/35, goes to show how much of an effect different porting has.
 

Dr. Beardface

Active Member
Apr 13, 2012
#16
Don't tempt me!! Lol if I had more time to ride the first thing I put money into would be a better head, until then I'm ok with just doing small things. Speaking of which, what's your opinion on FCI vs. Dasa intake for the 04-05 bikes?