rockabilly Posted April 10, 2008 Share Posted April 10, 2008 (edited) hi mate. the oil pump is nismo n1, the crank has a collar fitted. and all the clearances where checked with plastigauge.. i.e endfloat was checked with feeler gauges, and mains/big ends/oil pump-collar gaps were checked, also its all balanced ..bernie Edited April 10, 2008 by rockabilly Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3786767 Share on other sites More sharing options...
shanef Posted April 10, 2008 Share Posted April 10, 2008 plastigauge? Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3786828 Share on other sites More sharing options...
bubba Posted April 10, 2008 Share Posted April 10, 2008 Funky plasticine string stuff that you put in where you want to measure, torque the item down then remove and gauge the thickness that the string has spread to.. Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3786921 Share on other sites More sharing options...
shanef Posted April 11, 2008 Share Posted April 11, 2008 i was being sarcastic as thats not an overly accurate way of measuring clearances lol Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3789137 Share on other sites More sharing options...
R TUNE Posted April 12, 2008 Share Posted April 12, 2008 oh god a rb33 or rb34 with say a rb25det head plus twin GT3066R turbos should be very nice might decide to use this on my future build were will this be avalerble Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3790527 Share on other sites More sharing options...
bubba Posted April 15, 2008 Share Posted April 15, 2008 i was being sarcastic as thats not an overly accurate way of measuring clearances lol Furry muff.. is there a better way to measure clearances with everything torque'd down? Oh and when I decide to take my RB30 passed 400rwhp I reckon I'll get one of your cranks to go with the new rods.. 3.4L FTW Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3795522 Share on other sites More sharing options...
Rolls Posted April 15, 2008 Share Posted April 15, 2008 If big capacity is wanted why don't you guys go the the nissan v8s ? Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3797958 Share on other sites More sharing options...
chuckie Posted April 15, 2008 Share Posted April 15, 2008 G`Day all,I would like to know what some of you have done o standard crank`s if it worth spending any time cleaning them up cast mark`s ?,weight loss ???,cheer`s chuckie. Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3798220 Share on other sites More sharing options...
bubba Posted April 15, 2008 Share Posted April 15, 2008 If big capacity is wanted why don't you guys go the the nissan v8s ? While that would be fun it was too much headache and then turbo'ing it would be a nightmare.. the idea is still floating around in the back of my head so maybe one day Chuckie, all I did to my crank is have it ground for oversize bearings. My engine isn't going to be seeing huge revs or MASSIVE power for quite some time, when I get to that stage I'll re-do the crank aswell as new rods etc (or likely get one of these 3.4L cranks ) On that note, these bigger cranks.. will they already have the long oil drive and all the other goodies people do to their cranks (grub screwing etc)? Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3798474 Share on other sites More sharing options...
drgnball34 Posted April 20, 2008 Share Posted April 20, 2008 hate to see what the torque of these stroker cranks do to the gearbox Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3810095 Share on other sites More sharing options...
infamous_t Posted April 20, 2008 Share Posted April 20, 2008 If big capacity is wanted why don't you guys go the the nissan v8s ? If I was rwd it would already be happening, VH41DE+TT ftw! Still, guy in England got one running (VH41DETT awd) in his 32R Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3810246 Share on other sites More sharing options...
MBS206 Posted April 20, 2008 Share Posted April 20, 2008 hate to see what the torque of these stroker cranks do to the gearbox About the same that high power RB30DETs do to them... Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3810356 Share on other sites More sharing options...
Eug Posted April 28, 2008 Share Posted April 28, 2008 more interested in what kind of RPM limit it can handle - especially so after a balance and knifeblade. are the rods more likely to go before the crank at higher revs? Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3829246 Share on other sites More sharing options...
bubba Posted April 30, 2008 Share Posted April 30, 2008 Standard rods? I was told they should handle about 400rwhp but not much more.. Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3832061 Share on other sites More sharing options...
dano4127 Posted April 30, 2008 Share Posted April 30, 2008 Standard rods? I was told they should handle about 400rwhp but not much more.. farken hope they go more than that! Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3832262 Share on other sites More sharing options...
bubba Posted April 30, 2008 Share Posted April 30, 2008 Well from all the advice I have received (forum users, tuner and mechanic), 400rwhp seems to be an acceptable cap for now. When I decide I want more, engine will come out and get new rods and a balance along with some head/manifold porting. Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3832527 Share on other sites More sharing options...
dano4127 Posted April 30, 2008 Share Posted April 30, 2008 fair enough Im hoping they will hold between 450 and 500hp guess it just depends how far the XR6 turbo will take me Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3833081 Share on other sites More sharing options...
Sydneykid Posted April 30, 2008 Share Posted April 30, 2008 more interested in what kind of RPM limit it can handle - especially so after a balance and knifeblade.are the rods more likely to go before the crank at higher revs? RPM is far more savage on the up & down bits (pistons and rods) than the round & round bits (crank). They have to stop, change direction and accelerate, then stop, change direction and accelerate again etc while the crank simply rotates. I could see the probability of 1,000 bhp out of a standard crank, but 1,000 bhp out of standard rods is not in my wildest dreams, pistons forget about it. Cheers Gary Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3834691 Share on other sites More sharing options...
bubba Posted May 1, 2008 Share Posted May 1, 2008 SK, I might be misunderstanding, are you saying that if the revs aren't excessive then the rods should be able to handle a lot more than 4-500hp? I have my 30 limited to 6800rpm, reckon I would be able to push more than 400rwhp on the stock rods with that limit? Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3835234 Share on other sites More sharing options...
dano4127 Posted May 1, 2008 Share Posted May 1, 2008 SK, I might be misunderstanding, are you saying that if the revs aren't excessive then the rods should be able to handle a lot more than 4-500hp? I have my 30 limited to 6800rpm, reckon I would be able to push more than 400rwhp on the stock rods with that limit? RIPS have pushed the stock rods and pistons to 750hp on nos a few times for fun, then wind it back down to 600hp for the street... Link to comment https://www.sau.com.au/forums/topic/212607-crank-strength-and-upgrading-options/page/2/#findComment-3835274 Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now