N1 Block Vs Stanard Block

[Duncan]

I heard tomei has rb26 engine castings and can make their own

that would be great news, its going to get hard to race production cars if nissan won't cast new blocks

[AlexCim]

did you buy new from nissan?

[CruiseLiner]

i ordered a brand new n1 block today actually its in melbourne and gonna be here in 4 days or so hopefully not sure if there are any others left or not.

not cheap but when u want big power u gotta pay.

i dont think putting $50k into a china safe is a smart idea so im doing a n1 block to replace the 05U block buy the best safe then start putting money in it is a much smarter idea.

my 05U cracked after 1200km of use with the new setup. not happy at all, but this means the new block wont limit power output for a long while yet.

[Gav]

my 05U cracked after 1200km of use with the new setup. not happy at all, but this means the new block wont limit power output for a long while yet.

I bet it cracked between 3 and 4 cylinders near the oil feed to the terbs.

[danoz]

did you buy new from nissan?

my cefiro came from signal garage in japan with the n1 block

http://s74.photobucket.com/albums/i243/danoz_01/

[CruiseLiner]

I bet it cracked between 3 and 4 cylinders near the oil feed to the terbs.

top guess gav, the usual spot

$1000 of machining down the drain

boat anchor anyone ?

Edited July 25, 2006 by CruiseLiner

[Gav]

top guess gav, the usual spot

No - just the same tuner

[CruiseLiner]

No - just the same tuner

do u even know where it was tuned at ? im using the autronics by the way so u can guess who it wasnt

i got the djetro sitting aside and if i use that ill use who u are talking about but i am keeping autronics at the moment and ive found a good tuner so i dont need to sell it.

why bring workshops into it anyway?

Edited July 25, 2006 by CruiseLiner

[Gav]

do u even know where it was tuned at ? im using the autronics by the way so u can guess who it wasnt

i got the djetro sitting aside and if i use that ill use who u are talking about but i am keeping autronics at the moment and ive found a good tuner so i dont need to sell it.

why bring workshops into it anyway?

Chill man - only having a stir.

The crack is in a known weak place (as you say) and actually is more a function of the balancing and revs that the engine sees. In my case it was caused by poor harmonics and high revs. Was certainly a deciding factor in me spending the $$$ on a full counter weighted crank, ATI damper and close attention to balancing.

[CruiseLiner]

Chill man - only having a stir.

The crack is in a known weak place (as you say) and actually is more a function of the balancing and revs that the engine sees. In my case it was caused by poor harmonics and high revs. Was certainly a deciding factor in me spending the $$$ on a full counter weighted crank, ATI damper and close attention to balancing.

no worries gav i am just over all the workshop battles and so forth in perth its annoying as no one agrees on who is good and bad, etc its a losing battle i just keep my mouth shut now

[Sydneykid]

Chill man - only having a stir.

The crack is in a known weak place (as you say) and actually is more a function of the balancing and revs that the engine sees. In my case it was caused by poor harmonics and high revs. Was certainly a deciding factor in me spending the $$$ on a full counter weighted crank, ATI damper and close attention to balancing.

HI Gav, this comment sparked my interest. The block cracking I have seen has been vertically, up the water jacket. I haven’t seen one go along the block. Which way did yours crack?

cheers

[Beer Baron]

for us visually challanged people can someone point out the crack on that pic?

[ebola]

for us visually challanged people can someone point out the crack on that pic?

under the central bottom right hand bolt.... EDIT: Guess not. one day... I still want my questions below answered... please...

I think...

and because I really don't know, couldn't it be fixed? unfixable? weaker (how much)? and could bracing help prevent it happening?

Edited July 26, 2006 by ebola

[Gav]

HI Gav, this comment sparked my interest. The block cracking I have seen has been vertically, up the water jacket. I haven’t seen one go along the block. Which way did yours crack?

cheers

It was a while ago and I don't have a very good piccy, but I think it was at the top of the rib in the red circle.

Edited July 26, 2006 by Gav

[Fitzpatrick Speed Works]

Hard block that hole, and that particular water jacket, run and external high pressure feed straight from your oil pump and you will go along way to solving the problem of cracked blocks!!!

[Sydneykid]

for us visually challanged people can someone point out the crack on that pic?

The rusty water runs down the block due to gravity. So look for the highest point of leaking water, you can see the hairline crack going front to rear.

cheers

[thongslapper32]

ur engine parts cost 50k? damn!

i dont think putting $50k into a china safe is a smart idea so im doing a n1 block to replace the 05U block

[Slide]

Last year you could pick them up no problems. You cant do that anymore as production has stopped in Japan and there are none left in Australia, and very rare and expensive in Japan now.

I have just found out about this.

I can still buy N1 blocks out of Japan and they are still being made.

You can still get the Nur block aswell which you can tell because of the x in the right corner after the engine number.

And also the GT block is still being made and has a 4 month waiting list :

Which is 5mm taller then an N1 block and 3mm thicker walls than the N1 block.

[Amaru]

Bring a bunch into Australiua then as I know quite alot of people who are after them.

For the past 2 months it has been virtually impossible to get hold of one. Everyone promises the world yet cant deliver.

[Mik]

I have just found out about this.

I can still buy N1 blocks out of Japan and they are still being made.

You can still get the Nur block aswell which you can tell because of the x in the right corner after the engine number.

And also the GT block is still being made and has a 4 month waiting list :

Which is 5mm taller then an N1 block and 3mm thicker walls than the N1 block.

I think you have been misinfomred.

N1 blocks are still unavailable in Japan. If you can get them...I will have ten please.

Also, the GT block is not 'taller' than the N1 block. How do I know? I've had 2 sitting beside each other. Interesting that you say there is a waiting list for the GT block. Maybe if they get another lot of 300, they will make another run.