Mazdasly75's GT-R

[mazdasly75]

Thanks! I got the rods through ebay

[bomdoutscort]

are they a name brand or the h beams that they sell on there?

[mazdasly75]

scats rods

[mazdasly75]

here it is, just got back my crankshaft for a full knife edge and balancing job. The result's awesome. Here few number from what I got. I brought 3 cranks to the shop and we compared those. We deceided to knife edge a stock BP one wich was in a better shape than the 2 others.
-the first one is my own GTR crank that weigh 36lb. yeah, the gt-r crank weigh 1.5lb more than a stock BP one
-second is a stock BP that weigh 34.5lb
-the 3rd is the knife edged that weigh 31lb
here's the pictures of a stock BP and a knife edged BP crank


stock BP


Knife edged


Look where they removed material to balance it. The polishing finish is just awesome!! I like it!!

[mazdasly75]

let's do some maths now. There's a lot of mass removed off the internal.

Stock GTR:
-piston, 495g x 4, 1980g
-rods, 685g x4, 2740g
-flywheel, 21lb/9525g
-crankshaft, 36lb/16329g
Total: 30.574kg/67.4lb

After the diet:
-JE pistons, 299g (matched) x 4, 1196g (saved 784g)
-scats rods, 524g (matched) x 4, 2096g (saved 644g)
-fidanza flywheel, 9lb/4082g (re-balanced with pressure plate) (saved 5443g)
-knife edged crank, 31lb/14061g, (saved 2268g)
Total: 21.435kg/47.25lb
Total mass removed: 9.139kg/20.15lb

Awesome!!! I'm now waiting for new ACL bearing, they're B/O...after I'm assembling back the beast.

[Escortfan]

Wow, nice buddy! Mustve cost a good amount

[b6t power]

20lbs of rotating weight is allot... good job :D looking forward to seeing this thing fly down the road :D

[mazdasly75]

From Thursday to Sunday, I'm assembling back the GT-R, so expect lots of pictures, again , of the work. The list of things to do now:

-Put back the engine in one piece.
-install new frount mount oil cooler, FMOC lol.
-New eibach drop suspension.
-Change both rear wheel bearings.
-Install new HKS EVC VI boost controller
-Install new HKS turbo timer.
-Install new discs and pads brake to the 4 corners
-Few mods over my stainless 3" hexaust line, deleting the high flow cat + welding V-band clamps instead of flanges.
-...and the things I'm missing right now.

So stay tune!

[progt91]

excellent excellent work man. very impressed with the care that has been put in your engine. looking forward to some action videos. many thumbs up man.

[b6t power]

i was getting sad cause every time i signed in there was no updates

i like the sound of "so expect lots of pictures, again"

[Mazda_Powered]

nice man! hope all goes well!

[Stevieg]

Very nice build. Out of curiosity what were the stock intake and exhauat valve face diameters?

[mazdasly75]

They were the same diameter as a stock BP except for the exhaust side, the valve is sodium type so it dissipate the heat through the valve steam instead of the seats.

They're for sale if you're interested, it's a bolt on. http://www.wihandyman.com/forum/showthread.php?t=47026

[mazdasly75]

Hey just a quick note to let you know that I got now a 8000rpm monster!!!

the car is running stock waste gate (14.7 psi) and pulls as much as 20 last year. I got lots of pics and a video of a 0-190km/h acceleration. I now reach 190km/h in 4th gear while I was hitting cutoff at 170km/h with the same transmission. I'll give a shot with G-tech and I'll post all the stuffs in the next 3-4 days!

[Mazda_Powered]

awesome!! glad she's running strong!!