To 30/26 Or Keep The 26?

[r32-25t]

Torque.

this and mountains of it

[R0yalT]

Ive been told a RB30 build would cost about the same as a RB28 stroker build.

Hence why I'm going the RB30 route.

I don't think it would cost nearly as much as $10k.

[Sub Boy32]

Love my RB30/26, would never go back to having the 2.6

Makes heaps more torque at a much lower rev range, and it doesn't need to be revved to death to make power.

.....car should have come with it already in here.....

[SIR-JD]

Cheers. Yeh if I am going to use the 26 I wouldn't be touching it internally. Just pitching if back in with oil issues fixed. If I'm going to start that sort of thing I may as well just throw in the 30.

[Shoota_77]

To do the complete oil fix properly it's a head off job anyway. One of the best things you can do is improve the head oil returns to the sump. I reckon I took about 10mm out of my head around each of the 2 main holes, they're so much smaller than the galleries in the block.. Nissan really did do a shit job at the factory of finishing off the head.

[SIR-JD]

Yeh I realise this... What I'm thinking I mite do is: I'm on a good thing with a very reasonably priced fully built 30/26. I'll buy this engine and keep my 26 and do the oil mods and have it as a spare... If the 30/26 lasts say 10,000km I'll deem the build reliable and then I mite think of selling the 26?

[sky30]

There is no reason the rb30 wouldnt be reliable as the rb26 with the same parts in either.

[SIR-JD]

Yeh I realise that. My thinking is: the 26 is stock so you know it is put together perfectly at Nissan with the added piece of mind I have already tried and tested it. The 30 has been built by a shop and all it takes is one small thing to go wrong and bang...

[Ben C34]

Put 26 back in, thrash it. Start building 30 for later on.

[Shoota_77]

I agree. My car has been off the road for 12 months now building my 30. Leave the 26 in until the 30 is ready to bang in. I did the same as what you're proposing- buying a built 30 assuming I could whack it straight in and away I go. Mine was a lump of shit and I had to start completely from scratch. Don't waste your time unless you're 100% on the engine you're buying. If you don't have a young family and other committments then you'll bowl it over a lot quicker than what I will!

[SIR-JD]

Cheers

[R32GOJIRA]

I have a 30 block and a 26 head for sale if your interested mate.

I would have built it but other things come up and my 26 doesnt show any signs of letting go anytime soon.

PM if your interested.

[SIR-JD]

Thanks for the offer buddy.

[luke gtr]

Hmmmm ok. Anyone here that has had both and can explain why it will be that much better apart from the moderate power gain?

have had both.

for street, go the 30, alot nicer to drive due to better low end.

for track, keep the 26 until it pops, the replace with a built 26.

alot easier to swap in/out if anything happens as everything just bolts up.

where abouts are you located?

[SIR-JD]

Hmmmm ok, I see a lot of seriouse track guys going down the path of the 30 for respone and power out of corners. I'm in Melbourne buddy.

[luke gtr]

response and power out of corners come down to turbo selection.

see if you can go for a ride in someones car that has the conversion.

was going to offer, but its a little far for you to travel.

[XGTRX]

Honestly, if it's 90% track you don't need anymore power. As previously said put some forgies and rods, balance it up, get the oil control sorted and your done. Spend the rest on chassis and suspension setup. 370 is more than enough. Also a revving 26 sounds much nicer than a stroker or a 26/30. Whoops did I say that....sorry.

[luke gtr]

Also a revving 26 sounds much nicer than a stroker or a 26/30. Whoops did I say that....sorry.

miss my 26 noise.

the 30 just doesnt sound the same.

[SIR-JD]

Thanks for the thought Luke Gtr. Hmmmm I now have the opertunity to get a forged 30/26 with 10,000 on the clock for 7g... It's still in the car and have had it looked over. Puts a spanner on the works.

Edited October 17, 2013 by SIR-JD

[FineLine]

there are pros and cons for both, the 28 will rev and sound awesome, the 30 will give you loads more useable low down street power.