Hi, I am thinking about getting my engine ported in a few weeks time and would really appreciate all your opinions about the type of porting I should get done (if at all). I want to keep the car reliable and don\'t want to be drinking 5 more miles a gallon due to the porting, but a bit more power would be nice. Ive heard there\'s mild porting, street porting, extend porting, major extend porting, bridgeporting,and peripheral porting. But I dont really understand what each of them are and how they differ. What would you recommend I get done, bearing in mind I have no more than £400-£500 to spend (on top of an engine rebuild).
Thanks :wave
It is possible to build an engine with quite a serious porting job and retain near to standard fuel consumption if driving conservativly.
Your choice is really only whether to have a mild port or street port for practical use.
You will need at least to have an ECU upgrade though to utilise the porting,although it is possible to run a stock ECU on a ported engine as long as the induction and exhaust are relatively stock with no obvious change in power or performance and carry out further modifications at a later date when the budget allows.
As for the price that you are allowing for the porting work, that should certainly cover it with most tuners/builders.
Regards
Carl;)
What Carl said ;-)
You\'ll need management and tuning to obtain the benefit from your porting work so if your budget will not allow for this in future then it may not be overly worth it. Always a good selling point should the time come tho I guess!
This gives u an idea of the various different types of porting:
Rotary Ports (http://www.rotaryengineillustrated.com/RE101pages/4-ports101.html)
I had no problems running mine with porting and standard airbox and still catted. Ran a little rougher (in a good way) and improved the aural aspect quite a lot :)
I had a street port jobbie done and didn\'t notice much change in economy, it\'s better than stock now with the Apexi ECU.
Gotta be done if your engine is out for a rebuild...
Cheers guys, that\'s very helpful. :D Your advice is much appreciated Carl and thanks for the link Rich. I\'ll have a good read! What do you mean by "running rougher" iaint? I take it that doesnt mean porting always kills the engine faster?