google

This is actually very accurate. Valve float wont occur if your revving in whatever spring load range your valve springs were designed to handle. We have run 18psi at the track and had absol no problem. The benefits of a port and polish job are minimal on a street car where you wont run race gas and wont be boosting over 15lbs. If your running a lot of boost on a very well tuned motor and assuming you have a hondata or speed pro, Ind. fuel management system that can raise your rev limit, all youll need is valve springs and retainers. Valves are nice but not totally necessary. PnP will increase Aflow but will not make your car run any cooler as I am assuming your talking about IAT temps. Bigger surface intercooler or carbon Intake mani will decrease your IATs considerably.
PnP is more so a mod left to N/A motors as all our turbo cars run stock heads with the exception of valve springs and retainers, we always run stock integ cams even in the typer's we run stock gsr. <-- that is totally debatable but with less overlap and shorter duration we find a little more usable power mid range. Good luck with ur setup, and everything ive said is always just my 2 cents

zappas

you do not need to do headwork.

boostjunkie

no, he really should at least get his head checked.

93civic

ladies and gentlemen give this man applaus for a great answer to my question. great info bro and thanx alot for your time. my concern was losing power w/ a turbo setup on stock ports.

Gladimor

theres a guy here at my job that has had a lot of success with a built sir-2 head, the head has been through two or three blocks and is still tickin you might want to look into that. he's in high 300's trying to get over 400whp on a t4, millenium does most of the in depth work on his ride so maybe they can help you with your questions.

lates.

boostjunkie

theres no way in hell you can expect to get an answer like that with the question you asked.


bad form=

zappas

no shit, of course stock pistons/rods/spings/valves ect ect, are NOT going to be as good as there aftermarket upgrades.

that is the dumbest question I have ever seen.

google

Well I like stock valves, they have really good flow by properties a nice swirl polish and there great not to mention damn easy to find used ones in good condition. I mean if u go to Alaniz they’ll even recommend stock sized OEM valves for high compression motors, just because they don’t readily break, they’ll bend but wont easily break. A lot of stainless valves will snap like a twig but aftermarket valves are a lot lighter and decrease valve train float when accompanied higher bind rate springs, hence the usage on high boost turbo applications. One thing I defin recommend would be using type R Lost Motion Assy, they will not bind as quickly as stockers, and for the h22a people the type S ones are awesome, that is if your going to get a big cam like a jun 3 or a toda C. You always hear of people breaking their aftermarket long duration high lift cams in pieces, this is the reason for the most part. Good luck everyone, as always this is just my 2 cents.

93civic

why even post stupidity of this nature???

Shive

Because he's Zappas.....

And dude, do you have a teal hatch?