Max Engine Displacement??
01-29-2007, 02:02 PM
#2
Senior Member
Superstock
Join Date: Dec 2005
Posts: 428
Not a popular topic with this bike but can be done. I think +2mm is the biggest available displacement pistons. The sleeves might handle bigger but the pistons would have to be custom made. JE makes +2mm pistons and they are 11.5:1 vs the stock 9:1. I haven't heard of a stroker crank and rods for this bike yet.
01-31-2007, 02:46 AM
#4
Senior Member
Back Marker
Join Date: Aug 2004
Location: Belgium
Posts: 203
02-02-2007, 11:14 AM
#10
Senior Member
SuperBike
Join Date: Dec 2005
Location: South Lake Tahoe, CA, USA
Posts: 1,689
Hehe. Funny guy.
I am building a supercharged '88 MR2 engine for a guy's track car. The stock heads aren't very well finished on that engine (in fact they're really bad), so I really think this thing's going to scream. I'm unshrouding the valve area in the CC's for low-lift flow improvement and reshaping the floors of the ports, decreasing the restriction around the valve guides and blending the bowls to the seats.
I'll post some photos when I get the head finished. I'm sure of you will be interested.
I am building a supercharged '88 MR2 engine for a guy's track car. The stock heads aren't very well finished on that engine (in fact they're really bad), so I really think this thing's going to scream. I'm unshrouding the valve area in the CC's for low-lift flow improvement and reshaping the floors of the ports, decreasing the restriction around the valve guides and blending the bowls to the seats.
I'll post some photos when I get the head finished. I'm sure of you will be interested.
02-02-2007, 12:42 PM
#11
Senior Member
MotoGP
Join Date: Sep 2006
Location: Austin, Tx
Posts: 4,138
I would be very interested in seeing the pictures and I know you have been busy but - you know - opportunity knocks. :smile: I would be especially interested in the before pictures if you say they are as bad as they are. I always liked those MR2's! Good luck!
02-02-2007, 01:10 PM
#12
Senior Member
SuperBike
Join Date: Dec 2005
Location: South Lake Tahoe, CA, USA
Posts: 1,689
I will put before pictures, so you'll see what I mean. I'm used to working on Honda stuff. Their car head ports look a lot like the bike stuff. Really good right out of the box.
The MR2 engine was way ahead of it's time in '87. I drove my girlfriend's dad's brand new MR2 in '87. I can remember dropping the throttle to get some oversteer then flooring it to keep it sliding. What a cool car! She wasn't with me. Good thing.
The MR2 engine was way ahead of it's time in '87. I drove my girlfriend's dad's brand new MR2 in '87. I can remember dropping the throttle to get some oversteer then flooring it to keep it sliding. What a cool car! She wasn't with me. Good thing.
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