iflytii
04-02-2008, 08:39 PM
For sale: Extrude Honed M20 intake manifold -- $350 shipped in the US
I purchased this from another racer on the e30 boards a couple years ago and have been sitting on it since. I've decided it is time to let it go.
Information on the Extrude hone process can be found here: http://gethoned.com/process.html
It does have a minor problem, it had a blow out during the second pass of the extrude hone process - the bottom of the plenum right after the throttle body blew out on the second pass. They fixed it (welded it) and ran the test results with the fix (2nd pass) with the following numbers:
http://img.photobucket.com/albums/v521/iflytii/for%20sale/flownumbers_blanked.jpg
Obviously from the numbers between the first and second test the fix does not effect performance. The fix is barely noticeable from the outside and it's on the underside so you would never notice it unless you knew it had been fixed.
I purchased this from another racer on the e30 boards a couple years ago and have been sitting on it since. I've decided it is time to let it go.
Information on the Extrude hone process can be found here: http://gethoned.com/process.html
It does have a minor problem, it had a blow out during the second pass of the extrude hone process - the bottom of the plenum right after the throttle body blew out on the second pass. They fixed it (welded it) and ran the test results with the fix (2nd pass) with the following numbers:
http://img.photobucket.com/albums/v521/iflytii/for%20sale/flownumbers_blanked.jpg
Obviously from the numbers between the first and second test the fix does not effect performance. The fix is barely noticeable from the outside and it's on the underside so you would never notice it unless you knew it had been fixed.