Gmr 117

[Bryan TTM]

installin my new GMR built 117 today....had Steve build it....here's the specs

Axtell/JE
HP Inc 51
R&R cast heads, rollers
GMR's new adjustables
Woods 9B
10.8 to 1
S&S forged crank, Hobanized

i delevered the motor to Steve acoupla weeks ago, picked it up this weekend....Steve & Michelle are super folks, glad i got to meet them...i'm bettin this motor is gonna ROCK

[Pikeslayer]

I'll be curious to see how everything goes. I'm planning the exact same build, except I will use stock crank Hobanized. What are tuning it with? Or is it carbed?

[Bryan TTM]

we are fortunate enough to have a fantastic SERT tuner here in DFW....i pulled the DTT off and will use the SERT

[claydbal]

i bet that thing goes whoa-doggy!! curious tho as to why you went 51mm on throttle body? gmr used to recommend 55 on 103/107 sized motrs. did you guys find a torque trick or something?

[pwmorris]

Looks pretty serious-what size valves in the heads?

[Bryan TTM]

not sure but gonna try something.....i've read all the posts about TB size not actin like a carb does....i've also had many a hot street motors in all kinds of things and i remember how a 400hp sbc for the street would run like a dog with a 750 double pumper but put a 600 spreadbore on it and it wakes up.....on my last 98 i had a 55....when i put the stocker back on it came alive...i'm gamblin on the 51 cause i dont run the rpms to the moon, i run it thru the gears at most and short shift by 6k....at the very worst i can have it bored out....i'll let yall know what the dyno says later

[arealinvestor]

Yeah 51mm sounds a bit small for a 117ci build.I would have thought a 55mm or 58mm!!!!!!!

[claydbal]

thanks bryan, im still weighing the bigger is better idea myself. cant afford to just buy every size and dyno, cant afford to bullshit a customer just so i can experiment, so, gotta ask questions and observe.

i use the old drag race philosophy-------its just a motor with a hole for air to come in, and another for air to go out. everything else is speculation once you lose the control factor in the experiment.

looking forward to your findings.

[Pikeslayer]

I'm wondering about the 51mm myself. I'm trying to find one used, so the first 55mm or 51mm HP Inc I see, I'm buying.

[todd comer]

Seems that its best to use a Woods 9b for 117" and a 9F for the 124".

[C-Cat]

Originally Posted by Pikeslayer

I'm wondering about the 51mm myself. I'm trying to find one used, so the first 55mm or 51mm HP Inc I see, I'm buying.

i believe they make a 53mm also.

[Kivaari]

So...uh...who's the great SERT guy in DFW??????????????

[ejk_dyna]

<<Seems that its best to use a Woods 9b for 117" and a 9F for the 124".>>

Depends on the bike (light vs heavy), head flow and riding style.

The 107 I am building will use the tw9fg and it will still be strong on the bottom. But my dyna is a light bike and bottom to me is 2500-3500rpm.

...but just in case I have a tw9bg to try as well

[arealinvestor]

Originally Posted by Bryan TTM

installin my new GMR built 117 today....had Steve build it....here's the specs

Axtell/JE
HP Inc 51
R&R cast heads, rollers
GMR's new adjustables
Woods 9B
10.8 to 1
S&S forged crank, Hobanized

i delevered the motor to Steve acoupla weeks ago, picked it up this weekend....Steve & Michelle are super folks, glad i got to meet them...i'm bettin this motor is gonna ROCK

Let us know how your dyno numbers look with the 51mm HPI.If i'm not mistaken Woods performance had a 117ci with a 51mm throttle body,on their website dyno area,producing 150hp/144lbs of tq

[PhilM]

Originally Posted by Kivaari

So...uh...who's the great SERT guy in DFW??????????????

It's Ed Dahir @ The Dyno Difference, in Richardson.

PM me if you need phone number or email info.

He ROCKs!

BTW Bryan... How 'bout a 63mm TB? I bet that thing won't even idle with a measley 51. WTF were you thinking?