2G Port and polish

[Inkdlyfe]

So I been thinking about new mods to do to this car and I came across maken my tb have bigger openings meaning intake mani to head gasket match and shave off that minor extra and then head to exhuast maken all the inlets and outlets bigger but can't really find any gains on it, is this worth actually doing on a 420a with boost or isn't worth the tiime or money to do so ? Maybe call boring not porting but I'm sure you understand

 

[PlanZero]

You may notice an improvement in throttle response. When I put a 1g TB on my 2g and ported the manifold to match I noticed a small difference, but to tell you the truth I wouldn't do it over again. If you think your throttle response feels sluggish do it. Don't expect any big gains. I noticed better throttle response when I put a non cruise cable in and changed from a 3.5 to 4" air filter.

Crap, I didn't read your whole thread; if you plan on porting the runners as well you may see more improvement, but from what I've read it's only beneficial in high HP setups. Not sure about a boosted 420a. It seems like a lot of work for something for little gain.

 

[pat white]

when it comes to competition all those little gains make a difference...on the street not so much "seat of the pants" feel ...all depends on ur goals