Rods Rods Rods!

[JustinP]

I have a quick question I hope someone can help me with. I know that the R34 RB25DET NEO uses the exact same rods as the RB26DETT, but I just need to confirm that RB25DET rods to suit a non NEO R33 would also fit in an R34 RB25DET NEO. I am almost certain that they are the same size and are interchangeable between all of them, but I just need to make absolutely sure!

Reason being is that I am looking at purchasing this:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=270472689565&ssPageName=ADME:X:RTQ:MOTORS:1123

I understand that the pistons are completely different on the 25 NEO, but the guy can order the custom pistons to suit from CP. However I just want to make sure that the Eagle rods will no cause me any issues considering they are for a normal R33 RB25DET.

Also, any opinions on Eagle rods?

Thank you!!!!

[BMYHOE]

Whats is your power goal mate?

And dam thats a good price.

[Tangles]

thats been the ebay price for the past 12months

sorry OP not exactly sure myself.

[JustinP]

300rwkw, for now at least. Going with the forged internals is perhaps overkill for the moment, but I would rather do it properly now just in case I want more in the future. And the motor will be out anyway, so why not!

And I may have a buyer for my old rods, so I thought I may as well get the Eagle forges ones too. Each rod is about 150 grams lighter than the stock ones, surely that has to improve things somewhat.

Whats is your power goal mate?

And dam thats a good price.

[BMYHOE]

eagle rods will be fine for your set up just be sure they got arp2000 bolts, but over 350-400rwkw i would use different rods.

Dan.

[R31Nismoid]

For 350-400rwkw you'd just use GTR rods. Given 100's of built motors using them without a problem, for $200 - cant go wrong really.

If you wanna pay $1200 then by all means do it - but 400rwkw is a well proven "no issue" factor. Infact many have run 450rwkw through GTR rods without a problem for years. Key is using good rod bolts of course and less than 8500rpm it would seem.

[JustinP]

I already have GTR rods as far as I understand! The engine is an R34 RB25DET Neo - I have been told that the Neo uses GTR rods? Am I incorrect in this thinking?

The main reason I am looking at getting the Eagle rods with the CP pistons is that the extra cost is minimal. And I was going to get some ARP rod bolts in any case for the rebuild. These are included in the price, so I think I am getting the Eagle rods for almost nothing.

In addition to that I have a friend with an R33 GTR. He is currently rebuilding it, and needs new standard rods. I could sell him my rods for a few bucks as I understand the Neo rod is the same as a GTR RB26DETT rod.

My initial question though is, are RB25DET rods interchangeable with RB25DET Neo rods, keeping in mind the pistons are different and are not interchangeable.

Anyway thanks for all the help so far

For 350-400rwkw you'd just use GTR rods. Given 100's of built motors using them without a problem, for $200 - cant go wrong really.

If you wanna pay $1200 then by all means do it - but 400rwkw is a well proven "no issue" factor. Infact many have run 450rwkw through GTR rods without a problem for years. Key is using good rod bolts of course and less than 8500rpm it would seem.

[R31Nismoid]

26 rods need 26 pistsons. They are fine on a 25 crank

Exactly what i had in my 25

[The Dan]

R33 RB25DET rods are EXACTLY the same as RB26DETT rods

[r33cruiser]

300rwkw, for now at least. Going with the forged internals is perhaps overkill for the moment, but I would rather do it properly now just in case I want more in the future. And the motor will be out anyway, so why not!

And I may have a buyer for my old rods, so I thought I may as well get the Eagle forges ones too. Each rod is about 150 grams lighter than the stock ones, surely that has to improve things somewhat.

BAAAAD IDEA

Thats like saying I will buy a 50 footer incase it floods again

Wait UNTIL your motor goes pop THEN forge it if you have fully researched the costs and make an INFORMED decision to forge it

Why waste your moneys..

[SimonR32]

R33 RB25DET rods are EXACTLY the same as RB26DETT rods

EXACTLY the same... EXCEPT for all the differences which make them different!

Edited March 9, 2011 by SimonR32

[The Dan]

EXACTLY the same... EXCEPT for all the differences which make them different!

Read his question, read my answer

[JustinP]

The motor did go pop!! Well the head gasket went pop at least.

The bores / pistons look OK visually, but as the motor is out of the car I think i will rebuild it anyway. It's got 100,000k's on it and I want it to last a while, particularly with the increase in power. The additional cost for the forged bits is minimal in the scheme of things, and as I said I am effectively getting the rods for free.

BAAAAD IDEA

Thats like saying I will buy a 50 footer incase it floods again

Wait UNTIL your motor goes pop THEN forge it if you have fully researched the costs and make an INFORMED decision to forge it

Why waste your moneys..

[JustinP]

Thank you to everyone for all the info

Sounds like yes R33 rods can be used in an R34 (which has different pistons)

So I should be all good. In any case I have noticed the seller also has an RB26 kit for the same price, I will just get that to be sure, with the custom Neo pistons instead.

Read his question, read my answer

[JKR-32]

Read his question, read my answer

Ahh... I re-read it.

igedit