RB stroker crank

Discuss the RB20, RB25 and RB26 series engines.
bigtom
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http://www.nissaninfiniticlub....72664


daniel
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Joined: Mon May 24, 2004 4:02 am

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you could save your money by just using a GT-R crank with 82mm pistons in a RB20 block and get a 2.4 liter.

bigtom
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Joined: Sat Jun 26, 2004 6:54 pm

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this is true, but its good to have options. and i havent seen a lot of RB26 cranks for sale...and how much are those??? $900+ i bet.

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Project240
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They're also genuine Nissan parts, as opposed to a random crank being sold by some guy on a message board from some company that doesn't show up at all on a Google search.

bigtom
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hmmm maybe you're just jealous cuz you can barely afford to get that RB20 running. this crank is used in a race skylines in japan. it is by no means random. i guess there is always people like this project240 guy.

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PROJECTRB240SX
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Car: 1972 DATSUN 240Z W/ SR20DET

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WHATS WRONG WITH THE PROJECT240 GUY.... IS IT BECAUSE HE HAS DOUBTS AND YOU HAVE NO PICTURES, PROOF OF EXISTANCE, CREDABILITY, KNOWLEDGE ON THE SUBJECT, ETC?

LIKE I SAID IN YOUR AD THE PRICE OF THAT CRANK IS EXTREMELY HIGH.... AND YOU SAID YOU NEED CUSTOM PISTONS AND RODS, SO FOR THE SAME COST AS THE CRANK YOU COULD BUILD A RB30DET AND HAVE MORE POWER FOR A QUARTER THE COST.

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74260zt
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I'll offer $400.00 for it. I'm sure its worth alot to someone, but after just putting out over $12,000 on my project, thats all I can afford right now.And thats for something I can't even use until I spend another chunck o cash for rods and pistons to be able to use it.

I do have another RB26 motor I can build up using that crank, but it'll have to wait untill I finish up this one I'm building right now.

So.... I can use it down the road, if you decide to let it go for that amount, I'll take it off your hands.Not trying to disrespect you with the offer... it's all I can swing right now (and I really can't, but I will :D )

thanksjoel

bigtom
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the main thread states i have pictures.

Joel here has seen the pictures and is making an offer, because he certainly sees some value in it.

i dont normally post things up here but i thought i would give it a shot. you are almost worse than the damn FF SR20 guys. It is obvious you dont know who i am in this realm of nissan performance. i certainly have the credibility.

as for my knowledge on the subject...seems that i am the one with the knowledge about this crank and you are not. the crank is what it is man. sure an RB30E crank is chaper, but spin that that crank past 9000 RPM and see what you get. a few mm shorter stroke is worth something at 9500+ RPM. and any real race mechanic will tell you a seasoned part is much prefered over a new one.

just seems you guys make it really hard to try to offer something you dont normally see. the price isnt too high. HKS, Greddy, A'pexi seem to be charging more. oh yeah they are big names but none of them make 3.0l

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PROJECTRB240SX
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Car: 1972 DATSUN 240Z W/ SR20DET

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OHH AND TO SPIN A RB30E CRANK PAST 9K RPMS IS EASY.... YOU FULLY BALANCE AND KNIFE EDGE IT, GET BETTER BEARINGS AND BALANCE THE REST OF THE ROTATIONAL ASSEMBLY AND YOU CAN GET IT SET FOR ALL KINDS OF RPMS. ALOT PEOPLE SEEM TO ASSUME YOU HAVE TO CHANGE THE CRANK TO GET MORE RPMS BUT YOU DON'T.

YOU HAVE 30 POSTS HERE AND I'M SURE ALMOST NO ONE HERE KNOWS YOUR CONTRIBUTION TO THE NISSAN/RB COMMUNITY.

OHH AND THATS FUNNY YOU DON'T SEEN NASCAR PUTTING IN USED ENGINES IN THEIR RACE CARS, NOPE THEY COMPLETELY REBUILD IT AND BREAK IT IN; YOU DON'T SEE NHRA DRAG TEAMS USING ENGINE THAT HAVE MILES ON IT, NOPE THEY PUT IN ALL NEW PARTS AND BREAK IT IN; AND SO ON AND SO FORTH.

bigtom
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i actually have mechanic experience with an NHRA top fuel race team. the engine is rebuilt every 60-90min, but all of the pistons/rods are inspected if they are out of tolerance or show wear then they are changed otherwise they are reused. the crank is always reused unless damaged. Break in on a top fuel nitro meth engine? HAHAHA thats funny.

you dont have to change the crank to get more RPMs, but if you do you can get even more. NASCAR most guys rum 86mm stroke and they are just pushing 10,000 RPM max. hmm im sure they would agree with you that 2-3mm more and they could spin just as high....NOT. not reliably. NASCAR also rebuilds engines but that doesnt mean they use all new parts. NASCAR isnt as you may think. a lot of those teams do stuff like use different type rod bearings in the same engine. why?....cut testing time on bearing wear. run one or 2 different and see how they look later. they have a lot of money but they are not stupid.

yes to spin an RB30E past 9,000 RPM is pretty easy...past 10,000 is not reasonable given physical limits of materials and friction. of course if you figure out how to get an RB engine to get past 27m/s mean piston speed im sure all the F1 teams would love to hear from you man!! I assume nothing. laws of physics are what they are. bottom line is an 83mm crank will rev higher than an 85 or 86mm one. true most people may not need it but those that do ..DO.

83mm is better in more ways than one. wanna talk about making the cams work? total pumping increase before the air is sonic across valves? if you dont actually know about "racing" and real performance parts i suggest you keep you comments limitted to things like 'its too expensive'. thats subjective and certainly noone can deny you that. but seems you other comments are misinformed and unfounded. i really dont mean this as a personal attack on you but i am not "some guy" selling some "random crank".

this has kinda strayed......anyone else intersted in the using crank instead of etearnaly questioning it?

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PROJECTRB240SX
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LOOK I'M NOT TRYING TO ARGUE WITH YOU ON THE PRICE OF YOUR CRANK BECAUSE IT IS A REALLY CHEAP PRICE... BUT I'M SAYING THAT YOUR TARGET AUDIENCE HERE IS GOING TO BE LOOKING FOR A CHEAPER METHOD OF POWER... AND TO EVEN GET AN ENGINE TO 10K RPMS WILL TAKE ALOT OF MONEY.... MONEY THAT MOST OF USE DON'T HAVE.

POST UP YOUR PICTURES OF IT YOU'LL GET A BETTER RESPONSE.

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PROJECTRB240SX
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Car: 1972 DATSUN 240Z W/ SR20DET

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OHH AND NITRO ENGINE ARE BROKEN IN.... IT TAKES ABOUT 3 SECONDS, A QUARTER MILE, AND A 6 DISK CLUTCH.

leroy0053
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hey big tom shoot me an email i got some questions for

http://www.midnightillusion.comhttp://w ... senyou.com

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Project240
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Can barely afford to get my RB20 running? Maybe I'm a little tired of being ripped off by shady @$$holes who peddle s*** over the Internet and have no credibility to their name. Maybe, before I bought my RB20, I lost $1700 on an SR20 that took 6 months to get to my doorstep and arrived in about 200 banged up pieces thrown into a box (which I never got my money back for, btw). There are way too many shady people selling engines and clips and the like over the Internet; do a search on this board for Night7Racing and you'll see how important it is that people know who they're buying from before they throw their money away.

Credibility? Where? We have no proof of your credibility aside from what you're spouting at us. Got a website for your "Special Agent Motorsports" company? Please share it with us, because Google apparently has no clue that it exists. Vendors have to earn, PROVE their credibility around here, and you're no different.

Btw, your monumental lack of spelling and grammar skills doesn't help your sterling image either.

bigtom
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Joined: Sat Jun 26, 2004 6:54 pm

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monumental huh. i checked last post i made. has 3 spelling mistakes and 40 gamatical errors all attributed to no caps and no apostrophies in contractions. i knwo that. and thats the way i have always posted on any forum.

i really dont have to prove anything to anyone. no one is doing me any favors. the crankshaft was manufactured in japan. it doesnt really matter where its from. it could be from some guy named Francisco down in TJ, as long as its a good item i dont see the difference. good old google. good for what they want the public to know. you go ahead and ask google who is responsible for manufacturing parts inside F1, GTP, and LeMans cars. heck or even the darn speed world challenge cars. not much going on there i bet. maybe theres a reason why......they dont want calls from people like you.

if you're not interested or dont think im credible it's really easy....dont' buy it!

i know knight7 from a ways back. he didnt treat me very nicely and i didnt like that. i never did any deals with him. he's no longer around, and there are reasons why it got really hard for him to continue. guess that happens when you aggrivate the wrong people.

im sure people in the future would appreciate it if you asked them nicely about thier credibility and qualification before you attepmt to dismiss them as a random jackoff. but maybe you were just having a bad day.

RB240sx good to know there is a little bit of mirth in ya. nothing is the same as standing at the line next to a top fuel car when the light turns green. its really hard not to see a stern voice in those caps haha. i dont have a means to host the pictures and i dont like using those image host sites. i am happy to send pictures via email.

bigtom
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leroy0053 what is your email address? email me [email protected]

Yellow4g63
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Car: 95 Nissan RB20 240SX RB20
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Since you are now a member of this board you can uoload it to the Nico server and host it that way. Free 99 + .993 of your life.

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Project240
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I'm not saying you're not who you say you are or don't have the credentials you say you have, I'm saying that I (and we, as in we on this forum) really have no way of knowing about you besides what you tell us. I don't mean to put down your business or your crank or whatever, my point is that a Nissan crank carries with it a more well-known seal of quality because of the name attached.

Your stuff may be really good, I don't know, but a lot (read: most) people will be kinda sketched out about paying $600 to someone they've never really heard of for such an integral part of their engine. This isn't, like, a muffler or something, if the crank isn't perfect in the slightest little bit it would basically destroy your motor. You said you have nothing to prove; I'd personally want some proof of quality and reputation before I spend $600. That doesn't really matter much since I'm not in the market for an RB24DET stroker kit, but I know I'm not the only one who feels that way. Losing nearly 2 grand on a shady internet deal will do that to you :(

Anyway, maybe you're not some random dude selling cranks, but when you see a post that says, in short "hey I've got RB24DET stroker cranks cheap, $600, who wants one?", what else are you supposed to think? =P

bigtom
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the crank is no longer available. it now has a home. thanks for the interest and the grilling.

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74260zt
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Dawng..... oh well, I missed out I guess. Did someone off this forum buy it?

Glad to hear you sold it. Please keep me posted on any other bits and pieces you come across for sale, for the RB26....

later, and thankzjoel s.

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93RPS13
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OS Giken makes a RB30 kit........

TheSnail
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Wow, 600$. If I had a rb20 I would of bought it. Iv been looking at cranks for my rb26 and those things are 2-3k. Big tom do you have a rb26 crank availible? And on the rb25 transmission that I emailed you about. Are you in GA?

TheSnail
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93RPS13 wrote:OS Giken makes a RB30 kit........


For only 15,700 $

bigtom
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Joined: Sat Jun 26, 2004 6:54 pm

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snail yes i do have the transmission. i thougth i emailed you back. sorry i got a lot of mails about that transmission i still have one if you still need it. i also have a lot of the rb25de transmission it isnt as strong but usualy good enough for most people under 400hp

email me again


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