Port And Pollish On R34 Gtt

[BeAgLe]

Hey,

A mate of a mate of mine offered me a cheap port and pollish for my R34 GTT yesterday and was wondering if i should go ahead with it or not.

I have some understanding of what is involved but i just wanted to get more info before i do anything about it.

What are the pros and cons of doing it and has anyone else done it to there GTT?

Is there a noticeable power gain and saving on economy?

He said he will do it for $50 / cylinder = $300 plus the cost of getting the head re-done and it will take about 2 days... is that a decent price?

Would people recommend it, and if not, why?

Any comments are greatly appreciated!

Thanks.

[R31Nismoid]

Are you using the stock turbo?

[Abo Bob]

What do you mean the "head re-done" and how much for that? Last time I checked that part of it would cost $500-600 making the total $900ish which is still cheapish but do you need it? We need more info on your setup to answer that question.

[r33_racer]

yeh its worth it...if your engine is already pulled out and apart and your doing other mods to it. But just for the sake of pulling your std motor apart and getting the head port n polished and then faced with a maybe on the valves if thats what hes referring to for the 'head redone' then its prob not worth the hassle for the money even if it is cheap.

[BeAgLe]

Hey,

Thanks for the replies guys!

Yeah, i am using the stock turbo right now with no plans to upgrade it till it dies...

I still have stock ECU, injectors, fuel pump etc...

My current performance mods are:

- Air pod

- Exhaust

- 600mm FMIC using stock piping

I think he meant getting the head machined or something, and he mentioned something about the lifters too...

The car only has 56,000kms and hasnt been flogged from what i can tell, so the engine still should be in very decent condition... He recommends getting it done as it is a decent price and gives you more power etc... but if its gonna cost another $500 - $600 for the head, i think i'll leave it.

Next time i see him ill ask what exactly needs to be done to it, coz he said he has to get that done by someone else as he doesnt have the equipment to do it... i thought he said its around $150 though? I'll have to double check.

Thanks all.

[Howie]

I think he meant getting the head machined or something, and he mentioned something about the lifters too...

I'm probably way off the mark here.. but isn't the idea of machining your head to increase compression? Don't you want to decrease it?

Tell me if i'm wrong guys.

[satanic]

Depends what you mean by machining... you can machine the head and it won't do anything (think changing head gasket)

That's my understanding of it anyway...

[Abo Bob]

Depends which part of the head you machine.

Another couple of costs you seem to have forgotten about are a new head gasket and labour.

Also with stock everything there is absolutely no point whatsoever in doing this mod.

DON'T DO IT.

[satanic]

I say otherwise; DO IT

Change the head gasket; change the valve springs; camshafts; valves... replace head studs; do the port and polish and end up with a race-prepped head!

Sure you might live in a cardboard box after; but you know it ain't stock no more!!!

[r33_racer]

there is a difference between facing the head for a flat surface to machining it down to increase your CR, but normally people do that with headgasket choice these days...alot easier.

[Beer Baron]

waste of time for your set-up. $1000 could be spend elsewhere for much better gains.

[Howie]

Thanks for clearing up the compression thing guys.

[Abo Bob]

I say otherwise; DO IT

Change the head gasket; change the valve springs; camshafts; valves... replace head studs; do the port and polish and end up with a race-prepped head!

Sure you might live in a cardboard box after; but you know it ain't stock no more!!!

Ignore this person. He is an ass.

[satanic]

^^^ he is the real ass - don't listen to him; just look at his nickname "abo bob" sif believe someone with a name like that

Bob; let's take this outside - you and me!!!

[Howie]

LOL don't let this thread turn out like the OzGemini beef going on right now haha

Edited August 14, 2006 by Howie

[satanic]

Adam and I will behave -

I'd still say do the stuff to the head if your plan is to build a big HP car

[R31Nismoid]

waste of time for your set-up. $1000 could be spend elsewhere for much better gains.

Agreed

Far better bang for buck mods witrh your setup.

I could think of around 8 grand you can spend elsewhere before even coming close to needing porting