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yes a nice big score mark down the bore...farkn hell.... shit happens.lol good reason to pull my gt4088r powered rb25 out of my uda car and put it in.... time to sell it i think..haha

Edited by danielson

GO TYPE "R" BADGES WOOHOO...lol the block is still useable, if i machine the shit out of it and put some 87mm forgies in.lol i think he cause was a dodgy injector, i am putting in some 720ccs anyway with this rebuild so wel see wha happens..

i thought id give an update to this topic http://www.skylinesaustralia.com/forums/in...opic=119286&hl=

I have just discovered that not only is the piston in cyl 5 smashed, number 2,3 and 4 are also obliterated. ring lands are non existent.

I didnt discover this at the beginning because i knew the compresion on cyl 5 was very low, so i removed it first to inspect it. im supprised the thing was still running.

Im an 90% sure this is due to the flow characteristics of the stock plenum, as if you look at it, cyl 2,3,4 and 5 would theoretically recieve a higher frow than 1 and 6. causing a rich state on 1 and 6, and a very lean state on 2,3,4 and 5.

What are you opinions on this? My father is a mechanical egineer, and he first pointed me in the direcion of the plenum just by looking at its design. comments anyone??? i know of a few of you who will GRILL me for this....

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