Re: OST-022: New Numbers.....
Posted: Mon Jul 22, 2013 12:02 pm
Nice work man. I've seen on stock 7MGE heads that it's always been cyl no. 3 or 5 that fails somehow to deliver based on how the pistons look after disassembly.
Gino1X1 wrote:Nice work man. I've seen on stock 7MGE heads that it's always been cyl no. 3 or 5 that fails somehow to deliver based on how the pistons look after disassembly.
oldeskewltoy wrote:I'll get this back on the bench once I've finished the intake port and chamber... but I believe all these ports are now capable of 15% greater flow...
more to come....
oldeskewltoy wrote:I'll get this out to the shop early next week to get the surface machined... but before I do I'll take a few chamber measurements to try and calculate how much the head needs to be surfaced to get the chamber volume back to 39cc...
Gino1X1 wrote:Clean job!!! One question, in this case with all this maching going on what are the changes relating to piston-valve, valve timing etc.(I know about the tensioner but in the 4AG)? Drastic or only mild re-adjustment?
from another forum wrote:what is your thinking with the valve lash being so tight?
you know, growing up and working on street cars in shops "a loose valve is a happy valve" was the standard (within spec of course). is this for better high-rev predictability?