Multiple Ports on One Housing

[RETed]

Originally Posted by TXRota

Same reason anyone does anything to a rota...more power

More power...where?
What kind of racing?

Bridgeporting was invented to get around racing rules back in the day.
With the increase of overlap, you get your +'s and -'s.

Peripheral porting was invented to give you all-out power with all the +'s and -'s of the increased overlap.

There is no advantage to do BOTH unless you're trying to show off.
The PP's are going to require custom work to do as stand-alone induction or if you're trying to incorporate them into an existing side-port intake system.
Both increase overlap significantly.
If you're going to go PP, go big or go home.

I've heard small PP + side port called:
*Combi port
*Combo port
*Mystery port
*Semi PP
With a stockish primary side port + small PP secondary (and sometimes stockish secondary side port), you can stage the PP's to kick in at higher RPM's, which allows you to have a very tame engine at idle and low RPM's but serious power on the top end.

Again, I don't see the logic to BP and PP the motor at the same time...

Hell, just get a T04Z, stand-alone, water injection and crank the boost up for 600hp and call it a day...
(Waits for RICE RACING...)


-Ted