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Port and polish
Posted 15 February 2011 - 12:55 AM
More to come as I progress.
Posted 16 February 2011 - 09:41 PM
The only thing is he did hint that there is more to porting than meets the eye.
It seems that you can make the engine run worse than before if you take off too much material in the wrong places.
I couldn't really take up too much of his time by trying to explain what I have done. So I wonder If any of you can point me in the right direction for these heads.
Posted 19 February 2011 - 09:10 PM
Posted 20 February 2011 - 01:19 AM
But I believe those that say the fuel is vapourised in the carb long before it reaches the intake ports.
Posted 26 February 2011 - 04:39 AM
Areas of larger cross section encourage the fuel to condensate out of the air -- not good. Best to leave things similar to factory unless you have a very good reason not to....
Posted 19 April 2014 - 04:48 AM
I'm an older bloke 58yo and never seen the results of port and polishing. thanks for the thread. its making sense.
Posted 22 April 2014 - 12:49 AM
Just remember........ I dont have the first clue into what I'm doing.
Hopefully someone will chime in with some technical feedback. ( best advice I have had so far is to spend money on a good valve grind)
With best regards
Posted 23 April 2014 - 11:07 PM
I am far from an expert on porting, but here is my 2 cents. Unless you plan to make your engine "breathe" better, through bigger carbs, racy cam, and large exhaust (read increase the RPM's), porting will may little if any difference to a stockish engine. You would probably get better results doing a simple port match and cleaning and deburring and a nice 3 to 5 angle valve job. There are other tricks like larger valves and cut down guides etc, but once again, you would only see results at higher revs.
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