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Post by pasis on Jun 3, 2013 20:58:28 GMT
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Post by pasis on Jun 3, 2013 21:28:40 GMT
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Post by mattturbocar on Jun 3, 2013 23:31:40 GMT
Pretty bits of metal. Why not just return the parts and get them to supply the right ones?
Anyway. Any hints on how long it takes to get oil pressure on an engine that has had time to dry out? I've removed the plugs and cranked for a couple of mins but am not yet getting it flowing. Any tricks?
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Post by pasis on Jun 4, 2013 5:47:09 GMT
because I live in Russia, and pistons in the states ... wait another month when will send the right do not want to ... This project is doing so for a long time.
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Post by mattturbocar on Jun 4, 2013 9:10:16 GMT
Clearly your machining skills are better than mine.
I do like all the pictures you post up, really good reference when swapping bits between engines.
Matt
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Post by nitro on Jun 4, 2013 10:49:40 GMT
My JE for water modell looks totaly the same like you Honda X4 ones, but with the valve pocket size of the water gsxr. I try to find a pic
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Post by nitro on Jun 4, 2013 11:03:48 GMT
Found these two pics of the 77mm 8:1 JE-pistons:
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Post by pasis on Jun 4, 2013 11:12:59 GMT
Thanks for the pics. You have were 76mm pistons or is it misprint?
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Post by nitro on Jun 4, 2013 11:17:43 GMT
Yes the gray engine has 76mm JE-pistons 8,5:1. But cannot find any pics :/
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Post by katana on Jun 4, 2013 18:10:45 GMT
Anyway. Any hints on how long it takes to get oil pressure on an engine that has had time to dry out? I've removed the plugs and cranked for a couple of mins but am not yet getting it flowing. Any tricks? Shouldn't take more than 15 - 30 seconds tops! Usually my dry builds are all lubed for assembly and show pressure in 5 - 10 secs! Even if an engine has been standing for years the pump usually stays pretty wet / moist - not much help I know!
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Post by nitro on Jun 5, 2013 12:27:51 GMT
Sometimes when I mount all engine part together I clean the channels by turning the engine with a drilling mashine without cams. It just take a few turns (may be 2 seconds).
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Post by mattturbocar on Jun 5, 2013 21:05:45 GMT
double post
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Post by mattturbocar on Jun 5, 2013 21:07:18 GMT
I took of an oil cooler line and put a few 100ml in that way.
Pressure came up pretty quickly after that.
Guess the pump was completely dry.
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Post by mattturbocar on Jun 20, 2013 22:51:00 GMT
I know I've been here before but what kind of advance curves are you guys running.
I've got about 8.5 CR and am running gentle levels of boost (8psi). I can fully map the advance, but not quite sure what I should be aiming for and when can I bring it in.
My thinking is to copy the dyna2000 numbers. Max advance of 35deg from about 3kRPM. Probable knock a couple of degrees off if the boost goes about 8psi.
At the moment I am running too little advance and the turbo glows at night time even when cruising, so I think I need to look at this again!
Any thoughts or words of wisdom
Thanks
Matt
p.s. I know the way is to optimise this on a dyno, but that is one of the many tools that I don't have.
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Post by nitro on Jun 21, 2013 10:30:45 GMT
If I remember right I have 12° base adv. and 38 full from 2700rpm and retard 3° every 0,5bar, so I have 32° at 1 bar. Fuel min 98 oct.
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