ported my first evo head!!! (before and after pics)
Thread Starter
Newbie
Joined: Jun 2002
Posts: 19
Likes: 0
From: Surprise, AZ
no sir, when me and faisal talked about what was to be done it was orignially just gonna be some casting clean up. then it turned into a full street strip port with combo cahamber work. had i known it was going to be what it turned out to be i may have gotten beofre numbers also.
mike
I found this old thread by ams
https://www.evolutionm.net/forums/ev...w-numbers.html
https://www.evolutionm.net/forums/ev...w-numbers.html
Thread Starter
Newbie
Joined: Jun 2002
Posts: 19
Likes: 0
From: Surprise, AZ
its to bad they are not on the same bench, but if the numbers are really that bad on the stock intake side then i blame the horrible undercast on it. thanks for finding that sir.
mike
mike
I have a few extra heads here and I need one ported for my new motor, if the price is right id be intetested. Shoot me a pm.
ok i finally went and picked the head up today and the numbers are right about what i guessed they would be at .500" lift. they are as follows.......
intake:
.050"- 73.6
.100"- 117.3
.150"- 151.7
.200"- 188.6
.250"- 214.8
.300"- 227.1
.350"- 240.5
.400"- 252.6
.450"- 260.2
.500"- 265.2
exhaust:
.050"- 58.3
.100"- 89.4
.150"- 122.0
.200"- 152.4
.250"- 176.3
.300"- 194.4
.350"- 207.5
.400"- 217.6
.450"- 224.3
.500"- 230.7
im pleased with the results as these are stock sized valves and there isnt a whole lot of porting done to the head as could have been done (i mean it flows basically what i guessed it would). ill find somebody that wants a o/s valve race ported head and as soon as i do ill get it flowed and have the numbers up.
mike
intake:
.050"- 73.6
.100"- 117.3
.150"- 151.7
.200"- 188.6
.250"- 214.8
.300"- 227.1
.350"- 240.5
.400"- 252.6
.450"- 260.2
.500"- 265.2
exhaust:
.050"- 58.3
.100"- 89.4
.150"- 122.0
.200"- 152.4
.250"- 176.3
.300"- 194.4
.350"- 207.5
.400"- 217.6
.450"- 224.3
.500"- 230.7
im pleased with the results as these are stock sized valves and there isnt a whole lot of porting done to the head as could have been done (i mean it flows basically what i guessed it would). ill find somebody that wants a o/s valve race ported head and as soon as i do ill get it flowed and have the numbers up.
mike
Yes, i made 550whp/550 torque with the FP red, race gas/meth, 40psi and standard size valves.
I just took it back to the dyno over the weekend, and could not make over 540whp with a change to an FP black, 2.3 stroker and 1mm oversized valves.
the power was flatlining after 5k rpm, so that means i need to change out my stock/ported exhaust manifold to a race header.
