mikedc528 Posted February 2, 2010 Share Posted February 2, 2010 I used the Ozdat Engine Designer to create an engine with a wicked rod/stroke ratio and wanted to share. Parts picked. LD28 Block L24 Crank N47 Head Z20E Rods L28 Flat Tops 1mm Head Gasket Rod/Stroke Ratio:2.069 Bore/Stroke Ratio:0.857 Static Compression: 9.471 With a displacement of 2.569L and 0.000 Deck clearance. Might be good for a high revving option. Quote Link to comment Share on other sites More sharing options...
mikedc528 Posted February 23, 2010 Share Posted February 23, 2010 Comp ratio could be changed from 7.1 to 8.0 depending on the use of the P90 and N47 respectively (accompanied with L28 early or turbo dished pistons). Does anyone have any feedback on a set up like this? Any for foreseeable downfalls if built as a turbo engine (not really interested in N/A, even though 9.0+ comp ratio is great)? Any thoughts would be great, especially on the 2.1 r/s ratio. Quote Link to comment Share on other sites More sharing options...
PanzerAce Posted February 24, 2010 Share Posted February 24, 2010 IIRC, gas cylinder heads and diesel blocks result in an engine that is just tall enough to hit the hood. Quote Link to comment Share on other sites More sharing options...
mikedc528 Posted February 24, 2010 Share Posted February 24, 2010 Yes, it would move the entire engine assembly about an inch higher. What I was actually looking for were the cons vs pros of having that high of a r/s ratio without drastically reducing the cc's of the engine. I know that 3.1>2.8 and that 2.8>2.6 which ultimately means that 3.1>2.6, but I was wondering how the r/s and b/s ratios would help this become more of a 3.1 > 2.6. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted March 5, 2011 Share Posted March 5, 2011 I know this is an old thread but I've searched and can not find any mention of the size of the LD28 rod bolts. I will be ordering some arp bolts but not sure if they are 8mm or 9mm. I'm trying to finish my infiniti m30 with ld28 and turbo project. Quote Link to comment Share on other sites More sharing options...
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