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I'm about to source some big end and main bearings for my RB26.

I have 4 options:

* Genuine Nissan mains and big ends (not likely as the big ends are too soft)

* NISMO (Good, becasue they are graded and I can easily get the clearance I want and supposedly good bearings)

* Tomei (similar price to NISMO).

* ACL Race

I'm probably leaning towards the ACL race bearings becasue of price.

Has anyone used these?

The other thing is that I will be using a brand new crank, are the clearances likely to come out okay withe the ACL bearings given that they aren't graded?

If they are too small, I can always lenish the crank a little, but what if they are too large?

While I'm at it, I'm planning to run about 0.00125" - 0.00150" clearances. How does that sound?

Thanks in advance

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I'm using King bimetal high performance. Fairly well priced as well.

The builder was able to get them for cheaper than the nismo items.

+ he had used king with success in the past.

I've done 20,000km's so far. :(

Edited by Cubes

Another vote for King here... have used NK (I think it was NK...) bearings before who make them for Nismo... tri-layer style bearing. After 10,000kms with no detonation one was pretty worse for wear and on its way to picking up/spinning.

Put King's in and have done another 20,000kms and no problems what so ever.

I've heard bad reports of using tri-metal style bearings in hipo rb30's from the VL turbo boys, we are talking up over 300rwkw though.

An RB is an RB. :(

Forgot to mention im making over 300kw at the wheels (2530's). The Nismo bearings according to two engine builders I spoke to are tri-layer bearings produced by NK (Im pretty sure the company name is NK, cant remember 100% off the top of my head though).

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