allports

No not the yoytota 2jz the JZED
JZ 6 cylinder Holden head flow numbers
CFM %co-eff HP
.100” - 64.90 21.43
.200” - 126.75 41.69
.300” - 181.65 59.75
.400” - 217.50 71.54 336.01
.500” - 246.50 81.08 380.82
.600” - 268.25 88.24 414.42
.700” - 284.00 93.42 438.75
.800” - 292.00 96.05 451.11
PP 304cfm
1.90 Int valve 1.50 ex valve.

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa

allports

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa

allports

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa

TK383

Cool, never seen one of them.
Looks to be the goods.

I notice you haven't bothered aero'ing the guides - I used to, or at least cut them down on the od a bit where they poke into the port, apparently the flow around a round bar is pretty ordinary. But I recently did some back to back testing on WRX heads with & without the guides modded - SFA difference, despite the fact that there should be, so now I don't bother either, so much easier to just bump them up out the way for porting then bump em back down without ever fully removing them, keeps the seats concentric etc.

What block is the guy running? - blue 3.3, 186s or 179hp?

I have my doubts a red 202 block could take the power & rpm that head would make the motor capable of.

400HPONLPG

Red block,red crank all STD 202 ,7.7@170 ,(Big Blower) and for this head its going on a standard 179 Block.

RUF-IDL

nice bit of kit!! is that going on the rail or something else??

TK383

He split the red block? - or just pre-emptive?

A mate of a mate had a turbo red 6, was making a bit over 700hp & doing it easy, but he couldn't keep a block together, even a .020" over 179hp block split. He's dialled it back now, with a fresh 179hp block & only 600odd hp, so far so good.

We thought about fitting deep head studs (clear through the deck face & screwed in down in the bottom of the water jacket near the mains) to hold the block together a bit better, as well as making a brace for the welsh plug side of the block - but in the end he figured that seeing as we don't have a strip anyway he may as well dial it back to what a stock block will take & save some coin.

allports

another FED with a set of 2" Su's so its N/A but the comp is down on what he needs as he is going to a blown set up soon.

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa

3554me

good pics , nice porting

rlj308

if only that was a factory item to begin with.

allports

readily avail' rlj308

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa