mraw112's 20v blacktop 7age mr2 build

starbai · Apr 2, 2010

Props for working on an MR2... most people i know dont want anything to do with a mid ship platform...

mraw112 · Apr 26, 2010

Well I finally got the car running, unfortunately, its running with the 16v head for now. Ive had a hard time getting the ITBs for the 20v head, because i lost my job in March, and many corolla owners have no sense of value on what parts are really worth. I plan on geting the the car up and running on megasquirt over may and then putting the 20v head on in june.

So far the engine pulls great. throws you back alittle when you stomp on the gas... pulls alot better than the stock 4age. The problem is the engine really starts to get flat at about 6000 rpms to redline. I think the 20v head will really change that. Also, since ive been driving it, i average 32 to 35mg with spirted driving, and when I drive it normal, I got 42mpg. Not bad for no tuning, O2 sensor and about 140bhp.

I have a video of a quick pull, but photobucket is having a hard time uploading the video

HondaLuver83 · Apr 26, 2010

Im having a hard time believing its okay to just take material off the piston crowns without properly balancing them. I'd like to know more about this...

mraw112 · Apr 26, 2010

the diameter of the cut was 2.54cm. I went about .075-.1cm deep. The angle was about 20 degrees, but the surface lower on the inside of the piston I probably only removed .08-.1 ccs from the piston. The density of aluminum is 2.7g/ml so i only remove ~.25 grams. really not that much.