Port, polish and 3 angle valve job

Discussions relating to Turbochargers, Superchargers, Induction, Engine Mods, Exhaust Mods, and other items specifically to make your MX5 or Roadster put out more power.

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Kieran
I am quitting my job and going 5-ing
I am quitting my job and going 5-ing
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Port, polish and 3 angle valve job

Post by Kieran » Fri Feb 18, 2011 4:40 am

Is a 3 angle valve job worth it on a N/A engine
And does anyone have any suggustions of places to get a good preferably affordable port and polish job done [/code]

Keith Jones
I count 5-s in my sleep
I count 5-s in my sleep
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Post by Keith Jones » Fri Feb 18, 2011 10:39 pm

For a good port and polish I can recommend Lynn Rogers Automotive in Howick. Lynn is one the best head men in the country, doing many race engines. I know my own engine has more power (through on-track acceleration and top speed) than other similarly configured engines, which I can only attribute to differences in head work.

SLYDIT
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Keep calm, Forum Moderator here.
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Post by SLYDIT » Fri Feb 18, 2011 11:29 pm

The Nb 1800 already has the best head setup of all the mx-5's so i would look elsewhere for power. extractors/megasquirt ecu and some irtb's would be the way to go before pulling down the engine.
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Kieran
I am quitting my job and going 5-ing
I am quitting my job and going 5-ing
Posts: 686
Joined: Sat Dec 25, 2010 4:57 pm
Location: Auckland, NZ

Post by Kieran » Fri Feb 18, 2011 11:36 pm

Im going to be adding itbs, +2mm pistons, con rods, performance camshafts and a new ecu so i thought a good port and polish might be in order when i pull the head apart

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