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 Post subject: MY Mitsubishi collection - GK Scorpion
PostPosted: Wed Aug 18, 2010 5:03 pm 

Joined: Tue Aug 17, 2010 7:02 pm
Posts: 18
Location: Rockhampton, QLD, Australia
GK Scorpion specs:
Block
• bored .060”
• forged alloy pistons (dome size 3.1cc which was a bit less than 1mm)
• moly rings (not sure about this, may have been chrome only at this oversize)
• notched upper block to suit gasket bore binder and further unshroud intake and exhaust valves (removed approximately 1mm material from top of bore above top ring level)
• compression est. 10.8:1

Head
• M7 Head
o extensive porting
o enlarge chamber around valves to improve clearance to extent possible confined by bore-binder
o new valve guides
o new stellite valve seats
o oversized exhaust valves
o machined and re-chamfer valve guides for clearance of retainers at max lift
o re surface cylinder head (removed .015”)
o valve springs tension tested and shimmed to correct tension (310lbs open)
• Cam (specs)
o duration
 Intake 345.8o (241.8o at 0.050”)
 Exhaust 373o (242.9o at 0.050”)
o lift
 Intake .4704”
 Exhaust .4625”
o overlap 129.5o
o if comparing to a common old style cam grind spec such as ’30-60’ or ‘40-70’, this cam grind is a 36.6-72.9
o cam is suited to efficient 3000rpm – 7000rpm operation
• Double valve springs

Other
• Magna (248cc) injectors
• XF T/B
• Commodore VN Air box
• Microtech Digi 1 ecu
• Low & Hi pressure fuel pumps
o 6psi rear lift pump (35 gph)
o 50psi high pressure pump (not sure about flow)
• H/Duty clutch
• Extractors, 2 ¼” exhaust

some photos to follow


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 Post subject:
PostPosted: Wed Aug 18, 2010 5:04 pm 

Joined: Tue Aug 17, 2010 7:02 pm
Posts: 18
Location: Rockhampton, QLD, Australia
Image

Image

Image

http://s70.photobucket.com/albums/i107/gj_wagon/Scorp%20-%20motorkhana/

I'll put up some more when i get home and have more photos


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 Post subject:
PostPosted: Thu Aug 19, 2010 1:59 am 

Joined: Tue Aug 17, 2010 7:02 pm
Posts: 18
Location: Rockhampton, QLD, Australia
Image

Image

Image

The body donor
Image


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 Post subject:
PostPosted: Sun Aug 22, 2010 3:29 am 

Joined: Sun Jun 29, 2008 12:57 am
Posts: 253
Location: The Hills, OR
NICE.

Any dyno charts?? What brand are your pistons and exhaust manifold??

Any vids?? I want to hear that thing run... high comp 4g54 FTW.

-Robert

_________________
Image

My Build/Pic thread


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 Post subject:
PostPosted: Fri Aug 27, 2010 1:05 am 

Joined: Tue Aug 17, 2010 7:02 pm
Posts: 18
Location: Rockhampton, QLD, Australia
NO Dyno run yet.

Not sure on the pistons. Exhaust manifold is newer then the photos custom tuned 4into1

Videos are one Youtube
http://www.youtube.com/user/brend0n123?feature=mhum#p/u


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