Kracka's GheyrodX - bigger, fatter, gheyer! by Kracka

2 minute(s) of a 130 minute read

PPI's "extreme" porting is a nice middle ground between Buschur's and MAP's; when it comes to porting you get exactly what you pay for though. If you want the best and most extensive, you pay for it, but if you want just a basic port job then you pay less for it. I had Buschur's ported/coated on my IX, but after some back-to-back dyno testing I was sold on MAP's. Is the extra money worth the 5-8whp in gains? That is an entirely personal decision. I will say though, I really like the silver ceramic coating that Buschur uses, it is extremely durable and held up great over 40k miles/2 years I had it on my IX.

*edit*

Unfortunately, it appears that Wayne @ PPI decided to close up shop 

9-30-2012

I got retuned with the MAP ported/SPC coated exhaust manifold yesterday and vs. the MAP short-runner tubular exhaust manifold I lost 3whp, but gained 10wtq...I'll take it!

Dyno chart coming soon 

413whp/384wtq

10-1-2012

Retuned...

MAP short-runner exhaust manifold ---> MAP ported/SPC coated stock exhaust manifold:

-3whp/+10wtq

413whp/384wtq

I'll get an before/after overlay soon.

Link to full size sheet: http://www.dsmstyle.com/photopost/data/641/413-384.jpg

10-3-2012

RED = MAP ported exhaust manifold (SPC coated)

BLUE = MAP short-runner tubular exhaust manfiold (SPC coated)

I should have just done the MAP ported from the beginning...

BLUE = PPI "extreme" ported

RED = MAP short-runner

GREEN = MAP ported

(all were ceramic coated by SPC)