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Porting Head 

 

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 Post subject: Porting Head
Posted: Fri Jun 24, 2005 2:51 pm 
Tyre Shredder
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Joined: 28th Jan 2005

Ride: EF Fairmont

Location: Perth
WA, Australia

just wondering where a good place in perth is to go to get a head ported a little. and how much would i want to get it ported if im goin to get at least a stage 3 (most likely higher) cam...?? and how much would you be looking at to haev this done. and is it ok to get it ported before u get the cam or is it best to get it done afterwards..??

 

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Posted: Fri Jun 24, 2005 3:12 pm 
Getting Side Ways
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WA, Australia

go to All Tourque
Tell them "Johno with the green xr sent ya" ;)

Porting for a more agressive cam is a good idea, also dont forget hevier valvesprings.
The only problem with porting is the ecu, if you go too far with the flow rate the ecu will struggle to compensate. I do konw that JMM use porting to lean out their fuel mixtures.
I also found when upping the comression the ecu runs alot richer! I think it must set of the knock senser and it all goes down hill from there. So i think if your planning on going fairly wild with the head, look into some kinda chip/ecu to make the most of it.

I think you you should get the head played with, and then once you know the compression/flow, ring up a cam place and get yourself a custom grind. I made close to an extra 20rwhp form going from a stg 3 crow to a custom grind. You may not get gains like that without a aftermarket ecu, but the cam grinders know whats best when they know what the rest of the motor is like.

 

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Posted: Fri Jun 24, 2005 3:16 pm 
Tyre Shredder
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yeah im goin to get ems (spoke to u b4 bout wot u got).
ill speak to the guys at all torque when i get a chance.

cheers.

 

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