Rb26 Crank Needed Or Not?

[handyandy]

i'm rebuilding my rb25det with gtr rods, arias pistons 20tho and want to know what the benifits of running a rb26 crank are? Should i stay with the 25 one? what happens to that if i keep it? do i put a collar for the oil pump?

engine is apart already,

can someone explain?

thanks simon

[R31Nismoid]

Power target?

Stock RB25 crank should be fine, have it checked out though. Could have fractures... never hurts to check.

Obviously you want to get a collar for it as you'll be using a N1 oil pump

[handyandy]

around 300rwkw, can you explain the collar on the crank for me? why?

[B0oStEr]

If you have already bought your pistons you have to use the crank that suits them.

eg. if you bought rb25 pistons you can't use the rb26 crank because the piston will stick out the top of the block about 1mm.

The crank collar is a good idea but not essential.

If you are going to the expense of a new n1 oilpump then I'd definately do it.

[B0oStEr]

A gtr crank will increase your capacity by 70cc or only 2.7% if that makes the decision any easier for you.

This is the difference between the R32 gtr and R33 gtr cranks.

Note the longer flats on the r33 gtr crank on the right.

[handyandy]

cool, i haven't yet brought the pistons.

if i put 26 pistons in will that make the bore too thin?

[R31Nismoid]

no, you just purchase them to the size that your builder sets.

Have a chat with them, they will explain it.

Although i dont see the need to go 26 crank. As it stands you cant get any anywhere in the country anyway. So your gonna be using the RB25 crank + collar if you want you car back running this year

[Ronin 09]

fark booster... just saw your post.

ash - go delete my thread...

[B0oStEr]

cool, i haven't yet brought the pistons.

if i put 26 pistons in will that make the bore too thin?

Both rb25 and rb26 have an 86mm bore std.

You will find an r32 rb26 crank if you want one bad enough but the asking price has doubled since nissan ran out of new r33 cranks.

By the time you fit a collar to it you might spend over $800 for an rb26 crank.

There are a lot of mods that will give you more power for your $800 than 70 extra ccs.

[R31Nismoid]

By the time you get a 32 crank, collar it and then machine it up... i reckon more than $800 at current prices.

Agreed, lot better value for the $800, hence i didnt go the RB26 crank in mine. No point

[handyandy]

sweet, thanks guys. That money saved will be well spent elsewhere!

[phunky_monkey]

Are N1 cranks still available through Nissan?

[SECURITY]

hmm.. im using an n1 oil pump on the stock rb25 crank with no dramas.

[phunky_monkey]

Are N1 cranks still available through Nissan?

Have just confirmed that they are.

[Ronin 09]

Have just confirmed that they are.

are you sure that they checked the order status in Japan?

and what did they quote you?

ps I'm getting you a price on those DBA5000 replacement rotors

[Swiper the Fox]

Have just confirmed that they are.

price and availabilty please

[phunky_monkey]

are you sure that they checked the order status in Japan?

and what did they quote you?

ps I'm getting you a price on those DBA5000 replacement rotors

They said that it was in stock and wanted $1100.

Thanks for the pricing too

EDIT: Sorry guys, just been informed that only 2 came in, and both are spoken for.