Raami

It supports the mains. Those spacers are 10.5mm thick because then there will be about 0.5mm space between brace and block's bolt circle. (oilpan bolts)

I make the model by myself. I measured everything and made draft to paper. Then I draw that on autocad on my computer. I work on cnc plasma-cutting machine so I just cut that brace with it. Then I mark those holes and drill. That oil pickup pipe moves the same distance as the oilpan so the space will be the same. That brace will be between block and oil pickup pipe. I just drilled holes for that too. The brace is only 6mm thick but I think it will be strong enough because it will attach so thick and fast. I will seal the gap, between brace and block and also between brace and oilpan, with sealing glue. (Sorry I don't know the exact word) Please try to understand my writing. My english isn't perfect.

No I have to machine a 10.5mm thick washers between that brace and the mains. And that's why I also have to have longer main bolts. Brace and washers are made of steel.

I have made this brace to my engine. Let's see will it work. Sorry for the bad quality of that pic.

I have those LD28-rods now machined and I will put them on my N42-block. The bore will be 87mm because I have Wiseco forged pistons that size. Now I have pic of those pistons and there is mark of how much will the pin height be. Those aren't machined yet. That mark which is below is the 26mm pin height and that mark on top is where they will be machined.

Yes that RD28-engine is similar to RB-engine. I have heard that it is possible to put RB-head to RD-block. I had Patrol which had RD28T-engine.

I've got the LD28-rods and they will work just fine after the machining is done. I think they are strong enough because my friend has LD28-engine and it has "only" 350hp. And yes.. that is still a diesel-engine. The pin height that I'm going to use is about 28.9mm. But that might change little because I don't have headgasket yet so I don't know its thickness.

That's what I was thinking too. I've read that the ideal would be 0.030-0.035 but all I would like to know is that does that include turbo engine too? I think I'll go with that 0.030.

Sorry for that. Let's just say that max boost I'm going to use is 1,8bar. =) The only think that I'm worried about is that would the LD28 rod hit the bottom of the cylinder wall, when I use L28 crank in L28 block? My friend has those rods but I haven't test it yet. The pistons I'm going to use is wiseco and those are that type that you have to machine the right pin height to them. The headgasket is also something that I don't have yet. I'm thinking of buying kameari metalheadgasket because my friend has got datsun A-series engine and needs gasket too.

Why wouldn't it work with the LD28 rods? Yes I do know that the piston pin height has to be small but so what? The wisecos I'm going to use can be machined even to 26mm piston pin height and it won't become too weak. I do know that the LD28 rods top is way too big but it will be machined to match with the pistons. Or is there something bad if the rod/stroke ratio is going to be 1,77? This forum is really good to get information because here in Finland we don't have much L-engine builders.

I have done the searching alot. I haven't join here yesterday. I was just curious to know how much would it be in turbo-engine. I was going to use 0,80mm clearance but now I think would that be too much. The CR I'm going to use is 8,8:1.

Hi everybody. I decided to write here because I'm building my 240Z and I have one question about the engine. I have N42 block and P90 head. I'm going to use forged pistons and LD28 rods. Megasquirt, turbo and intercooler is coming too. But anyway... This is my answer: What is the ideal piston to head clearance with boosted engine? I'm going to run 1,5-2,0bar boost. This is my first post to here by the way.