View Full Version : shade tree LT80 porting ?

03-22-2006, 12:05 PM
Any reason I shouldn't widen the LT80 exhaust port 3mm on each side and also raise it 3mm? I don't have any porting experiance but seems I could handle that.

I'm sure the shops who work with these minis would produce better results but I just need a little extra juice.

Shouldn't the exhaust port modification along with the clutch mods and removing the head gasket wake it up a little?

thanks in advance for any comments.


03-23-2006, 09:53 AM
REMOVING the head gasket?:confused:

03-23-2006, 02:09 PM
Yea, you can remove the head gasket. Can't on a modded motor tho.
As for the porting, the thread name says it all. The exhaust porting is just a piece of the pie that makes a good port job. I do alot of transfer work. More time there than in the exhaust.
I ruined many a cylinder trying ;)

Welcome to the forums. :)

03-23-2006, 10:31 PM
Under what circumstances can you remove the head gasket, and what is used? Why not just mill the head?

03-24-2006, 12:44 PM
3mm seems quite a bit. I know that the LT80 is pretty mild, and can be opened up significantly, but 3mm still seems drastic.

03-25-2006, 09:29 AM
The 3mm width would be ok. The 3mm raise is less than what I do. :D :D