Most Power Ever On A Stock Rb Crank

[jimefam]

I was curious as to what the most power made on a stock RB26 crank is? I actually have a 25 but I haven't found a very high hp one and figured the 26 crank is as close as I could get. I'm building a drag RB25 and am keeping the stock crank as I don't know of an aftermarket 25 crank. I know rob@rips has made alot of power on a 30 crank but wasn't sure how well that would translate to a 25.

[R31Nismoid]

over 600rwkw.

[jimefam]

Damn looks like I'm aiming for well beyond the max then as I'd need around 800Rwkw to be competitive in the class I will be running. Has that been because they break beyond that or because people who are looking to make more power get aftermarket cranks?Here is my build:

http://www.gtr.co.uk/forum/155003-drag-rb25-s13.html

Edited August 21, 2011 by jimefam

[JonnoHR31]

cant see why 25 and 26 cranks wouldnt be just as strong if not stronger than 30 cranks. they can handle more power than you'll ever need

[R31Nismoid]

Damn looks like I'm aiming for well beyond the max then as I'd need around 800Rwkw to be competitive in the class I will be running. Has that been because they break beyond that or because people who are looking to make more power get aftermarket cranks?Here is my build:

http://www.gtr.co.uk/forum/155003-drag-rb25-s13.html

where did i say 600 was the limit?

Your build thread is quite interesting, what block modifications etc are you making?

There is no mention of it.

[jimefam]

where did i say 600 was the limit?

You didn't. And I didn't say that you had said it was the limit. I asked what the max power made was and you responded that well beyond 600rwkw which I assumed meant under 700 or else you would have likely said beyond 700rwkw. I proceeded to ask if that was the max made so far because they broke or for some other reason. No limit has been implied by either one of us although that is what I was trying to determine.

[jimefam]

Oil passages debured and the block is being 1/2 filled.

[jimefam]

cant see why 25 and 26 cranks wouldnt be just as strong if not stronger than 30 cranks. they can handle more power than you'll ever need

Thanks for response. It's good to have a source where to ask questions since info on these motors is very limited in the US. I've received some great info from experts and in particular Paul from Red R Racing has gone well beyond the norm in providing me with valuable insight and R&D based on his experiences. That's one thing that always impresses me is how selfless people can be when I'm not doing any business with them and they still give me a hand on things they make a living off of.

[GTRsean]

Have heard of 1400HP at the crank on a stock 26 crank, was balanced and checked though.

[R31Nismoid]

You didn't. And I didn't say that you had said it was the limit. I asked what the max power made was and you responded that well beyond 600rwkw which I assumed meant under 700 or else you would have likely said beyond 700rwkw. I proceeded to ask if that was the max made so far because they broke or for some other reason. No limit has been implied by either one of us although that is what I was trying to determine.

Well i can only tell you that which I've seen first hand.

Others might have seen cars go over 700.

Im not going to tell you 1000 if I've not seen that consistently... That would defeat the purpose.

Plus you never said how much you wanted in the first place. Had to start somewhere.

[jimefam]

Well i can only tell you that which I've seen first hand.

Others might have seen cars go over 700.

Im not going to tell you 1000 if I've not seen that consistently... That would defeat the purpose.

Plus you never said how much you wanted in the first place. Had to start somewhere.

Really I will have to see what it takes to be competitive in X275 at my minimum weight. A top run in that class is 4.80's in the 1/8 and I will have to weigh 1295kgs so we'll see how much power it will take for me to accomplish those times. I have to admit I'm surprised to see such high numbers on a stock crank as I saw so many aftermarket ones and even Nissan created the N1 crank I assumed that some weakness must have existed. I did get an email back from Paul at Red R Racing and he also confirmed that he had made 1350hp on a prepped stock and had spun them to just over 11k so apparently I should be fine.

[Rolls]

That's one thing that always impresses me is how selfless people can be when I'm not doing any business with them and they still give me a hand on things they make a living off of.

You could argue he isn't being selfless because by him doing what he does he gets massive respect on these forums and people will always keep coming back. I don't think he does huge volume though so I'd say he genuinely just does it for the love.

[jimefam]

You could argue he isn't being selfless because by him doing what he does he gets massive respect on these forums and people will always keep coming back. I don't think he does huge volume though so I'd say he genuinely just does it for the love.

Lol I suppose one could look at it that way but to be honest with you Paul knows that at least for the foreseeable future he can't expect any business from me(I'd already ordered everything and found a local shop to do the machine work.) and yet he's still been not just willing to answer questions but to offer up advice without request from me. Not everyone has been so forthcoming and others who would have similar motivations as what you suggest haven't been as helpful. Regardless I appreciate the help of anyone who will give something for nothing.

[Rolls]

Yeah he certainly sounds like a top bloke and the one to be talking to about this kind of stuff.

[geraus]

man thats a very nice build!

[Beer Baron]

I did get an email back from Paul at Red R Racing and he also confirmed that he had made 1350hp on a prepped stock and had spun them to just over 11k so apparently I should be fine.

has he really? he's built an RB26 running 1350hp on the stock crank revving to 11,000rpm. i'd love to hear what car it's in. i've never seen or heard of it. not that i've seen or heard of every car ever made but the ones making 1350hp that are built in my own state by someone I know tend to stick out...

BTW there is no such thing as an N1 crank.... N1 engines use the same crank as all RB26s do. there are only really 2 types of crank. early model R32 (short oil pump drive) and then every thing else (late R32, all R33, all R34, N1, Nur etc) which has the larger oil pump drive. but apart from that small difference even the two types are the same.

[XRATED]

It will handle 1 billionty millionty zillointy killer wasps...

what's with the stoopid 'how much hp can my m8 bolt handle' threads???

[jimefam]

has he really? he's built an RB26 running 1350hp on the stock crank revving to 11,000rpm. i'd love to hear what car it's in. i've never seen or heard of it. not that i've seen or heard of every car ever made but the ones making 1350hp that are built in my own state by someone I know tend to stick out...

BTW there is no such thing as an N1 crank.... N1 engines use the same crank as all RB26s do. there are only really 2 types of crank. early model R32 (short oil pump drive) and then every thing else (late R32, all R33, all R34, N1, Nur etc) which has the larger oil pump drive. but apart from that small difference even the two types are the same.

Really? Just the one crank? Well I must be mistaken then but I was basing my info off of nissans own info. On this page they show two cranks:

http://www.nissanparts.cc/catalog/?section=958#3232

Oh and it was one car that made 1350hp and another that revved to 11,000 not both. Although I didn't ask what the one that made 1350hp revved to. Do all the engines he makes stay in your state? Otherwise I can't see where being geographically close to him would help you know all the engines he's made.

It will handle 1 billionty millionty zillointy killer wasps...

what's with the stoopid 'how much hp can my m8 bolt handle' threads???

Hey genius you don't like the thread topic, don't click on the thread. It's not an idle question either, cranks in general aren't indestructible and I'll soon be in a position to take one to a power level most cranks would fail at.

Edited August 22, 2011 by jimefam

[jimefam]

man thats a very nice build!

Thank you

[N1GTR]

Really? Just the one crank? Well I must be mistaken then but I was basing my info off of nissans own info. On this page they show two cranks:

http://www.nissanparts.cc/catalog/?section=958#3232

You mean these two, correct?