Porting and Polishing

[Ryno]

Does anyone know where to a RB25DET head ported and polished, in the wollongong/sydney region?

I'd like value for money, and preferably someone that's had some experience working on Skyline heads.

Cheers

[2rismo]

RB heads flow pretty darn well off the boat but I have only ever had one good experience with a head work company and that was Unlimited Headjobs in Sydney. Can't remember if it was in Leichardt or whether i'm imagining it. NO-ONE in Wollongong.

Adrian

[benm]

LOL

Sounds like a "place" at Kings Cross Are you sure they work on engines 2rismo?

[Ryno]

Thanks Adrian,

I'll try a find a number for them, you don't know how much they charge for a port and polish do you?

Do you think it is worth the money to get done, or will the gain be pretty minimal. As there's a company that usually advertise is zoom, that say gains can be made of up to 40% on turbo engines, however if I can only get a 5% gain it might not be worth it.

Cheers, Ryan

[benm]

however if I can only get a 5% gain it might not be worth it.

If a typical engine is putting out say 180rwkw, 5% of this is 9rwkw. So if it costs anymore than $300 I wouldn't bother personally.

[2rismo]

I think that the gain would be minimal for the money outlaid.

Adrian

[gtrken]

If you are going full house and chasing that last bit then yes I would p/p.

Remember that a turbo engine pushes the gases in , it doesn't rely on vacuum or atmosphere to get the fuel/air charge in.

Upping the boost by 1lb would probably have the same result on a good flowing head ( which the RB25 is reasonable).

If you could do the job yourself , fine but I think a good 3 angle valve job and a cleanup will be fine.

Cheers

Ken

[sewid]

Call up information and ask for unlimited headjobs! Yes that phone call will go real well :D