Fixing the 12 Valve
#26
#27
If you installed studs and Machined rocker pedestal's .. you can run 60# give or take ..
Its all about cylinder pressure .. if you bump your timing you increase cyl pressure
If you add boost pressure you increase fuel .... ETC .. all of these together are what pops a HG ..
You need to spend wisely, put your money into insurance that's guaranteed to be a good step forward ..
Other wise you CAN run 100# boost .. wont last long and no one knows when they will pop .....
One way you WILL pop the HG is high EGT's when the engine is cold .. I was racin mine when it was cold .. didnt know you could vaporize the coolant in the head .. pressurized the HG to failure .. now I know !!!
Its all about cylinder pressure .. if you bump your timing you increase cyl pressure
If you add boost pressure you increase fuel .... ETC .. all of these together are what pops a HG ..
You need to spend wisely, put your money into insurance that's guaranteed to be a good step forward ..
Other wise you CAN run 100# boost .. wont last long and no one knows when they will pop .....
One way you WILL pop the HG is high EGT's when the engine is cold .. I was racin mine when it was cold .. didnt know you could vaporize the coolant in the head .. pressurized the HG to failure .. now I know !!!
#28
#29