greenmonster80

Sounds like there is some question about the durability / design of this piece. I would like to remind some that Kameari has almost 30 years in hardcore L series racing. If they make it and put it out, it may be more than you need; But definitely not a fly-by-night, new fangeled do-da to waste money on.

Did anyone else notice the rest of the exhaust system. It was listed seperately. http://page13.auctions.yahoo.co.jp/jp/auction/r10006815 I cannot wait to get my motor together. Budgeting priorities suck.

From my experience the internals are the same. I have never opened 1 up to double check. Differences are in the head and obviously the color of the cover. I do know that a red and black computer are not interchangeable even with exact stock setups. I have a friend who was more into these than me. My knowledge base is more with Skylines and their engines...but I have spent alot of time at his shop helping out with lots of Silvia / 180 builds..

Slownrusty....I imagine that the coating on the turbos, radiator and piping is as the title of the thread states. Nice touch on the radiator as well.

I bought a set of 89mm pistons to do the big bore build. However the pistons pins look as if they were beat out with a hammer. The burrs that were created inside the piston pin holes can be honed out. However my doing this will leave me with some really nice pistons with no matching pins. Has anybody out there ever found a set of oversized piston pins. I am in dire need of some help here. Thanks

Simply call these manufactures, you will be surprised to find out what they still have on the shelves at different wharehouses. Be patient and keep working it.

A large problem with 3.1 builds is someone is always looking for a way to build the thing cheaper and using junkyard parts. I can not agree more with the before mentioning of balancing. Balance the entire assembly. From the front pulley all the way tru to the flywheel. Since all the pieces are out anyway, it makes too m,uch sense. After lots of looking around and reading forums I decided to build mine the way it has been done in Japan for years. Why go this route? Well if they have strokers that run with big carbs and blow-thru turbo charging on drag cars that pull double duty as daily drivers than they have some how solved the reliability factor. Builders recommend either the F54 or N42 block. This debate could go forever. Just pick one already. Ld crank is a must. Take everything you know about different rod/piston combinations and forget it. Manufactures such as HKS, Tomei,Kameari and others have been making special pistons with redesigned ring specs to fit various rods lenghts. Get this they even tell you which set of connecting rods to use. They also tell you what the displacement will be using the LD crank and what piston set you purchase. For example my LD crank, 89mm tomei pistons and L20 (inline 6) connecting rods clears the 3.1 liter build safely and will hold thru future plans of turbo. Morale of the story is if you are going to do it, do it correctly don't wing it with junkyard parts trying to wing it.

A large problem with 3.1 builds is someone is always looking for a way to build the thing cheaper and using junkyard parts. I can not agree more with the before mentioning of balancing. Balance the entire assembly. From the front pulley all the way tru to the flywheel. Since all the pieces are out anyway, it makes too m,uch sense. After lots of looking around and reading forums I decided to build mine the way it has been done in Japan for years. Why go this route? Well if they have strokers that run with big carbs and blow-thru turbo charging on drag cars that pull double duty as daily drivers than they have some how solved the reliability factor. Builders recommend either the F54 or N42 block. This debate could go forever. Just pick one already. Ld crank is a must. Take everything you know about different rod/piston combinations and forget it. Manufactures such as HKS, Tomei,Kameari and others have been making special pistons with redesigned ring specs to fit various rods lenghts. Get this they even tell you which set of connecting rods to use. They also tell you what the displacement will be using the LD crank and what piston set you purchase. For example my LD crank, 89mm tomei pistons and L20 (inline 6) connecting rods clears the 3.1 liter build safely and will hold thru future plans of turbo. Morale of the story is if you are going to do it, do it correctly don't wing it with junkyard parts trying to wing it.