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High comp head.

patoki

New member
Premium Member
Nov 7, 2012
15
2
3
Has anyone ever run a 12.5:1 head with a turbo? Would this be a good idea, I'm thinking it would help with bottom end torque and maybe quicker spooling time. I run 60/40 aviation fuel and a water to air kit. I don't think details would be an issue. Most riding g is at 1200ft at 10 psi boost. This is on a 2012 pro rmk 800.
 

RobertTrivanovic

Well-known member
Lifetime Membership
Nov 8, 2012
1,199
243
63
Abbotsford BC
Has anyone ever run a 12.5:1 head with a turbo? Would this be a good idea, I'm thinking it would help with bottom end torque and maybe quicker spooling time. I run 60/40 aviation fuel and a water to air kit. I don't think details would be an issue. Most riding g is at 1200ft at 10 psi boost. This is on a 2012 pro rmk 800.

Ive never personally tried this but unless you want to run actual race gas I wouldnt recommend it at all....
 

Cascade Addiction

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Lifetime Membership
Sep 21, 2011
366
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43
WA Cascades
Yes

I have a 13'ProRmk, Custom Turbo, all completely one off ground up build. Garret 2867r, Tial housing, external gate, Vipec ECU tuned by Cody Phillips, Fastrax Motorsports cylinder porting, PAR Head with 12.5 domes, RKTek pistons, Has less lag than a supercharger, almost stock throttle response but with 250 ponies. You can definetely run that head compression no problem!! I ran straight AV to start, run 50/50 now no problems, 5-8K mainly, 10lbs boost
 
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