John, we are on the same page. We are arguing the same points. You didn't post anything I didn't already know. I've made the same arguments before on this forum and on the redlineforums.

I wasn't slanging the GMR head. You are just trying to make me look like a jackass now, which is fine because sometimes I can be one. But the truth be told, the GMR head still isn't the most aggressive port job out there. It's more aggressive than I thought, yea, but still not the most aggressive.

 

I might add, that my head.... Billa as stated was unpolished at the time. Granted in comparison it doesn't seem to be as agressive either. But if you compare old numbers to new numbers as is really needed for a apples to apple comparison you will see the percentage it gained over stock, or whatever your numbers flowed on THAT flowbench. I'd love to see what a gmr looks like, john, could you send me some detailed pictures?

Btw what is the total lift after the ratio is added?

 

here is my own post on the 2nd page, where are the 1000 dollar valves everyone is talking about? its apparent many of you are not reading. read before you post thats all i ask.

like a valve that will never snap, will never take out my sleeves, head, piston, and will never burn up? its obvious you are now trying to keep your rep. intact. and my valves cost around $600 only $200 more than TTR's Ferreas. small price to pay for a valve that will never cause me any trouble in the future.

thank you for paying attn. to what you read.

 

I think all everyone was saying that is the squeaky hinge gets the oil, if something in our engines hasnt been known to be particularly troublesome why replace it with something overkill? Just my .02

 

Absolute flownumbers say nothing (same with dyno's):

Billa's exh @400 lift:
stock = 133, ported = 173.3 => Gain = 130%

MR2 race exh @400 lift:
Stock = 147, ported = 199 => Gain = 135%

Qwik GMR ported exh @400 lift:
Stock = 175, ported = 220 => Gain = 126%

Ralli exh @400 lift:
Stock = ??, ported = 185 => Gain = ??%


(I got one of Qwik's heads, because it has a decent gain over stock and I did not want too big ports to maintain the gas speed. And because it was a good deal.. )

 

Yup Speedytec is on it. Good math skills and smart buy....now re read Tyler Omega_5's quote and it should start to make sense. And forget about the cost considerations and whoever has expensive valves. Just be patient and wait for EBristol to confirm what GMR already found out...

 

x2. volicity is key

 

VALVE CONTROL. if you melt a valve. you have tune issues. period. i give two ***** about my rep. this is the internet.

i have personally cranked more than 1700 degree's out of the port. now what does this equate to in actual cylinder temps before the intake valve opens?

 

Too much?

 

Agreed. but better than sticking your dick out the window...Oh wait....maybe not Oh hi Pamela...no... just waiting for you. Go ahead... Hmm thats nice....hey! who pushed the window lift button! that hurt!...sorry Pamela....maybe we should go somewhere more...private....[/QUOTE]

lol

 

[QUOTE=Area47;4746173]VALVE CONTROL. if you melt a valve. you have tune issues. period. i give two ***** about my rep. this is the internet. QUOTE]

Valve control? i have 80# Ferrea dual springs, no problem there. and these pryomet valves are good past 2700* overkill maybe, but i will not have to replace them if i have a tune issue. i plan on keeping this car for a long time and wont ever have to touch the head again no matter how much boost and heat i throw at it down the line.

 

if you have 2700 degree temps on a stock motor, the only thing that would be left are your valves.

 

This thread is :awesome: lol.

 

ya if heat becomes a problem the last thing your gonna be working about is the valves, whats the melting point of aluminum again?

 

Melting Point: 660.37 °C (933.52 K, 1220.666 °F)
Boiling Point: 2467.0 °C (2740.15 K, 4472.6 °F)

 

I will have dyno sheets up tomorrow of the differences of a ported head

 

if i have to port like 50 heads casue of good good gains in one weeks time..im going to kill you nice and slowly zach....lol j/k

 

well, it's a good thing his valves hold up to 2700 degrees "just to be safe" when we know his block and head will melt at less than half that temperature

 

I will update this thread later on with some numbers, the shop should have the head on the car by the end of the day and then it goes on the dyno. Here is what you will get.

Stage 2 setup and tune, cold air intake, exhaust, blah blah, stock head 230whp

Stage 2 tune with 2.8 pulley and 60lbers *only thing changed in tune is the injector settings* With the ported head.

My tune + 2.8 pulley 60lbers, ported head.

It's not 100% a vs b but fairly close. I mean the only thing changing is from the stg 2 pulley to the 2.8 and then non ported head to ported head. Then in the end I wanna see what just my tune will pick up.

Hopefully this will help the community see that decent gains are possible not only from tuning which we already know, but also from a ported head. Numbers should be up by 5:30pm today along with the graphs etc. I'm not going for a world record here as this is a CLIENTS car and not my own, it also doesn't have meth so don't expect 300whp.

 

you might as well eat popcorn because if you change the injectors, and the pulley and the tune as well as the head you dont isolate the improvements from the head alone which is the whole premise of the OP thread. So dont bother, sorry it wont mean a thing.

 

Meh still gives a bit of a guage to go by. We know how much power is usually gained from going from S2 to 2.85" and 60's

 

eh its still a couple of variables that are changing, i personally would rather have seen before after a to b.
when we do my head thats how its going to be setup with non ported head, dyno, pull car off, put it in side of shop, pull head off, port + valve springs, slap back on, dyno again. only variable is going to be the weather changing from a to b which wont be significant

 

yeah it can't be compared to something with extra mods going on at the same time.... but

for zach if you want specifics, why not run it with the stage 2 stuff after the head goes on then install the other. shouldn't take but 30-45 minutes.

as for the other post, yes we know around about what all 2.8's run so we would have a general idea of the gains

 

I'll do a A-B on Saturday hopefully

 

good thanks

good thanks