TheNeedForZ Posted June 7, 2006 Share Posted June 7, 2006 Looking for more than 83mm LD crank. What's the longest stroke than can be put into an L engine...if the bores are notched to clear the rods. The diesel engine has a taller block but does that equal to a longer cylinder that can take even longer stroke? Rod/stroke ratio is overrated, don't need that. Thanks Quote Link to comment Share on other sites More sharing options...
Guest iskone Posted June 7, 2006 Share Posted June 7, 2006 You might want to ask DAW aboout that. I seem to remember him telling me something about that, I could be remembering things fuzzy though. Isk Quote Link to comment Share on other sites More sharing options...
zcarnut Posted June 8, 2006 Share Posted June 8, 2006 Arizona Z used to sell a custom forged L6 crank with a 85mm stroke, but I haven't seen it on his web site in quite a while. Quote Link to comment Share on other sites More sharing options...
DemonZ Posted June 8, 2006 Share Posted June 8, 2006 Back in the day, Paeco used to sell an L6 stroker that was a custom forging, and not a rewelded reground oem crank. For ~2.5k I assume it had more stroke than the LD. Quote Link to comment Share on other sites More sharing options...
1 fast z Posted June 8, 2006 Share Posted June 8, 2006 Maxima rods are 5mm smaller than L series. You do the math. 83 plus 5= Uh, Oh. 88mm stroke with a 89mm bore. WOW. Quote Link to comment Share on other sites More sharing options...
Guest iskone Posted June 8, 2006 Share Posted June 8, 2006 Longer rods won't give you a longer stroke. If the crank has a 83mm throw it doesn't matter what the rods have no matter what. The rods could have a 500mm length the piston will still only move 83mm. Isk Quote Link to comment Share on other sites More sharing options...
thehelix112 Posted June 8, 2006 Share Posted June 8, 2006 I think he meant if you have 5mm shorter rods you can lengthen the stroke by 5mm to get the same deck height. Which is also wrong. If you shorten the rod by 5mm you can lengthen the stroke by 10mm. This is completely irrelevant to the question. Longest I've heard of was 85mm with a weld/offset grind on the LD crank. I would be interested to know what sort of block clearance issues this has also. Dave Quote Link to comment Share on other sites More sharing options...
Guest iskone Posted June 8, 2006 Share Posted June 8, 2006 I don't have my ci clac insatalled anymore do yopu know what dispacment that would net? Isk Quote Link to comment Share on other sites More sharing options...
Guest iskone Posted June 8, 2006 Share Posted June 8, 2006 Ok, found one online. 89mm bore 3.17L 194ci. 90mm bore 3.24L 198ci. Isk Quote Link to comment Share on other sites More sharing options...
randy 77zt Posted June 8, 2006 Share Posted June 8, 2006 i think what 1fastz meant was that the rod bearing diameter of maxima was 5mm smaller-then you could offset grind a crank with rod journels 5mm smaller for +5mm stroke.if you did that to ld28 you would be +7mm .i wonder what maxima engine he was refering to-vg30?if you are a machinist you make things fit-after you scrounge them from pick&pull .may be some toyota rods? Quote Link to comment Share on other sites More sharing options...
zcarnut Posted June 8, 2006 Share Posted June 8, 2006 Maxima rods are 5mm smaller than L series... Two concerns with these 1982-84 Maxima rods are the [smaller] piston pin diameter of 20.0mm (all the other L series rods have 21.0mm) and the use of the weaker 8mm diameter rod bolts. Quote Link to comment Share on other sites More sharing options...
1 fast z Posted June 8, 2006 Share Posted June 8, 2006 "Two concerns with these 1982-84 Maxima rods are the [smaller] piston pin diameter of 20.0mm (all the other L series rods have 21.0mm) and the use of the weaker 8mm diameter rod bolts." Pshhh, Youll need full floating wrist pins anyways, and you can add a 22mm Wrist pin, in a maxi rod. And the rod bolt scenerio, 9mm ones are easily insertable as well. Yes Im not talking length here, im talking Diameter of the journal. It can be done. Quote Link to comment Share on other sites More sharing options...
Guest iskone Posted June 8, 2006 Share Posted June 8, 2006 I wanna see some one do it. IT won't be me since it sounds pretty pricey. How a bout you DAW Mr. Maseratti? Isk Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.