Rb25 300Kw Cam Upgrade

[kitto]

Well I bought the whole top end second hand, and I plan to get it on e85 in the next year or 2 when its available and do few more supporting bits for around 380-400. I love the oversize turbo, I get killer economy, its safe in the wet, and i get great top end. When it was bought 1.05 rears were only available. It'll be a bit snappier with a small housing.

Wouldn't a 3582R be more suited to your goals? It'll give you a lot more response, more mid range and easily crack out the 380-400kW your chasing on E85.

[abr33]

When I bought it all about 5 years ago, it was a fair price, all set up. Now out dated though I know but im not too concerned. If i get boost by 4k ill be happy. even as it is i like it, kinda like a 2 stroke i guess lol

[Dose Pipe Sutututu]

I run a ported 25, with t04z and 1.05 rear, I dont get my boost on hard till 4800 rpm, im hoping cams, and a .83 rear will bring it hard from 4k. which is what i want. Im not interested in twisting the earth at 3000 revs...

Cams won't bring boost on earlier, however cam gears will. Retarding the exhaust cam gear and advance the intake cam you will see more low down.

Just a thought

[LANDSCRIBBLE]

Im also thinking about buying some poncams. Is there just the one "drop in" type for the rb25det (r33 s2)?

[34GeeTeeTee]

Im also thinking about buying some poncams. Is there just the one "drop in" type for the rb25det (r33 s2)?

I think for the 33 there is just the one type but for 34 there is type A & B

Anyway, if you do get them i purchased off ebay USA and got them delivered for like $600 i think!

[Hanaldo]

I think for the 33 there is just the one type but for 34 there is type A & B

Anyway, if you do get them i purchased off ebay USA and got them delivered for like $600 i think!

FRSport.com is cheaper. I bought mine from the guy on eBay, then my mate purchased a set for $520 delivered from FR. FRSport is so far the cheapest place I have found for any and all aftermarket parts...

Edited August 31, 2012 by Hanaldo

[34GeeTeeTee]

FRSport.com is cheaper. I bought mine from the guy on eBay, then my mate purchased a set for $520 delivered from FR. FRSport is so far the cheapest place I have found for any and all aftermarket parts...

I can't remember what I paid.... Awesome find though!! I'll be looking them up

[abr33]

I looked up FRSport and they are 520 plus like 130 shipping?

[Hanaldo]

I looked up FRSport and they are 520 plus like 130 shipping?

Hmmm, perhaps my mate got free shipping because he bought so much from them. Ill find out.

[34GeeTeeTee]

Hmmm, perhaps my mate got free shipping because he bought so much from them. Ill find out.

Sounds like it, cus the price I got was 525usd plus 115usd shipping which worked out $600aud I think

[LANDSCRIBBLE]

Im getting $647 posted from FrSport and $685 from US Ebay.

[34GeeTeeTee]

Im getting $647 posted from FrSport and $685 from US Ebay.

You can do better man... Who on EBay?

[LANDSCRIBBLE]

kreative-moto is the username. Bearing in mind im from Perth.

[Hanaldo]

Ahh could be the exchange rate as well of course. We bought ours when the aussie dollar was a bit stronger. Mind you, over a $100 difference seems a bit much for just exchange rate. Probably a combination of saved postage and strong exchange rate.

[34GeeTeeTee]

Yeah but the price we got was because it was Make An Offer..... The shipping to Aus is a flat rate no matter what.... So you should be able to get them for $600 with the current AUD I reckon

[LANDSCRIBBLE]

So i heard that the 8.5mm 256 poncams might require some die grinding inside the head to clear the cam lobes? And possible noisy lifters with them in also. Can anyone who has them confirm?

[Dale FZ1]

Not likely. I have cams in a 8.9mm / 265 duration. The Tomei units are straightforward to install without clearance issues.

If you have concerns/issues with noisy lifters, pluck them out while the cams are out. Disassemble and clean.

[LANDSCRIBBLE]

Ok thanks.

[boostn0199]

So i heard that the 8.5mm 256 poncams might require some die grinding inside the head to clear the cam lobes? And possible noisy lifters with them in also. Can anyone who has them confirm?

No chance for 8.5mm ones they are straightdrop in. Its worth dropping in some new valve springs though while your at it.

[AngryRB]

theres supposed to be a protective coating on them that should be taken off, did anyone do that, i just dropped them in

Edited September 3, 2012 by SliverS2