Porting templates
 

hello i was just wondering if anyone could tell me if i need both the "porting template streetable intake" and the porting template streetable exhaust 12a

i am having my 12a engine ported and im just curious if i need to buy both templates from RB
http://www.racingbeat.com/FRmazda1.htm
thanks

You'll need an intake template and an exhaust template if your doing both.

As with what Rx7Carl said, if you plan on having a full street ported engine, you will need both the intake and exhaust templates.

~T.J.

you don't need them both, but if you port the intake and not the exhaust, the exhaust becomes a bottle neck. If you port the exhaust and not the intake, its not a full street port, although it will show very slight improvement. A full street port, along with a header, and a more free flowing exhaust is a great combination.

Kind of a waste not to do both while its apart dontcha think?

totaly, just wanted to make sure , i allways have to ask, thanks alot .

Once the engine is apart how hard is it to actually port it yourself using the templets for a first timer? Can a beginner actually do a good job on it or do you recomend having a pro go for it?

Yeah, basically thats what I was trying to illustrate.

A beginner can do it if he has a steady hand, has the right tools, and knows what the finished product should look like. If you have any bad plates or rotor housings to practice on, I would try it on those first.