no he's not, small uniform dimples all over the inlet port walls would be ideal, what ever you do don't ever smooth out or polish the inlet ports.You could give the inside of the plenum and the bodies a light polish? - Dave Perry Jr told me to make it look like a golf ball, but I'm pretty sure he was pulling my leg (again).
in basic terms it's all to do with creating the right type and amount of turbulence in the right places to help air/fuel mix without slowing the air speed down on the inlet side and smoothing, polishing and opening (all engines have different requirements though) up the passages on the exhaust side to allow the exhaust gas pulses to almost pull themselves from the combustion chamber and down the pipe, it's this movement that then helps pull more fresh air/fuel charge into the combustion chamber........basicallyThanks Steve, that's good to know. - I'm never quite sure with what he tells me.
Why is that ?DO NOT USE CARB CLEANER to clean out the throttle bodies........
exactly :-DThe crud is actually making the air-tight seal when they close? If you blast it off with the carbie cleaner it won't seal any more an the idle speed goes up?
I remember Shaun showing me some the he was going to rebuild and you could see light round the edges of the butterflies.
yes, polishing the inlet runners will make a difference, it'll probably make it idle and run at low revs like a pile of shit and make no difference to the top end..so polishing the runners would not make any Difference?
I know what you mean. Luckly mine were ok after the clean and it holds good vacuum on idle.The crud is actually making the air-tight seal when they close? If you blast it off with the carbie cleaner it won't seal any more an the idle speed goes up?
I remember Shaun showing me some the he was going to rebuild and you could see light round the edges of the butterflies.