thanks guys, im very happy with the results especially since this my first eco head ive ever done
mike
i make neons go fast
would you consider doing a quad 4 or LD9 head?
or are you against them?
Oldsmobile all motor > Saab/Opel boosted
z yaaaa wrote:would you consider doing a quad 4 or LD9 head?
or are you against them?
hell yeah ill do them, ur not the first person to ask that. i love porting and am always up for porting new heads that ive never one before, sometimes i like this more then fabbing.
mike
i make neons go fast
soooo... about that flow chart? i am interested in seeing some of the lower lift numbers...
...I am the BEST at what I do...
"I guess your right[BlueBoost]. Me and my slow car are failers."
Hey Mike,
I have a spare LD9 Head if you ever want to "play" with it.
It wouldnt be much out of my way after work to drop one off or meet up.
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
I got a hand full of ld9 heads if you want to have fun with them...
well if dsmskyline is local then ill see if he can get me one to analyize if not ill hit u up sir.
mike
i make neons go fast
Yah I'm local, I live in buckeye, your in surprise correct?
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
ive got a bunch of LD9 heads as well but they are already ported.... im sure i could come up with a stocker to let you work ur magic on though.
do you do valve grinding/seat enlarging for 1mm os valves?
Oldsmobile all motor > Saab/Opel boosted
my buddy (my machinist) does all my machine work so i can pretty much do anything i need. dsm yes im at 115th and bell im gonna do a feeler thread for the ld9 head right now.
mike
i make neons go fast
Any price break for being the first?
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
picked the head up today, ill take a pic of the sheet either tonight or this weekend but heres the numbers...... (for those of u runnign ~.450" lift cams then this is for u!!!
intake......
.050"- 68.1cfm
.100"- 107.4 cfm
.150"- 143.3 cfm
.200"- 186.4 cfm
.250"- 226.1 cfm
.300"- 251.7 cfm
.350"- 273.3 cfm
.400"- 284.1 cfm
.450"- 293.0 cfm
.500"- 299.1 cfm
exhaust......... percentage of exhaust to intake at given lifts.......
.050"- 53.0 cfm 77.8%
.100"- 88.4 cfm 82.3%
.150"-124.0 cfm 86.5%
.200"- 154.4 cfm 82.8%
.250"- 175.2 cfm 77.5%
.300"- 189.7 cfm 75.4%
.350"- 198.1 cfm 72.5%
.400"- 202.5 cfm 71.3%
.450"- 205.8 cfm 70.2%
.500"- 208.2 cfm 69.6%
very very happy with the results!!!
mike
i make neons go fast
These are numbers with +1mm valves right ?
Honestly these are impressive at exhaust for a L61 head
Alanoo wrote:These are numbers with +1mm valves right ?
Honestly these are impressive at exhaust for a L61 head
yep they are +1, and im not BS-ing when i say i can still get more out of the exhaust too.
mike
i make neons go fast
Yep you could of course go as extreme as the first BTCC exhausts, but needs a custom exhaust mani :p
(later revisions, did not cut that way in the SAI ports)
Alanoo wrote:Yep you could of course go as extreme as the first BTCC exhausts, but needs a custom exhaust mani :p
(later revisions, did not cut that way in the SAI ports)
i dont know what any of the abreviations ur talking about are but im guessing they ported all the way through to the egr ports on each side of the exhaust ports to get that shape yeah? i had thought about that but never inteneed to actually do it. funny that somebody did do it. i wonder how they flow.
mike
i make neons go fast
BTCC is the British touring car championship, they used the european version of the L61 ecotec between 2001 and 2005, then the Saab derivative (identical the the Cobalt LSJ).
the SAI ports are the ports on each side of the exhaust ports, these are not EGR ones, but Secondary Air Injector, which is a different system,
There's only one EGR port on the Ecotec at one end of the exhaust face
Looks only promising for n/a applications or an extremely high revving engine...
...I am the BEST at what I do...
"I guess your right[BlueBoost]. Me and my slow car are failers."
BlueBoost (Itsjustacavalier) wrote:Looks only promising for n/a applications or an extremely high revving engine...
yeah those huge primaries are gonna really flow up top.
mike
i make neons go fast
BlueBoost (Itsjustacavalier) wrote:Looks only promising for n/a applications or an extremely high revving engine...
or supercharged.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
Leafy wrote:BlueBoost (Itsjustacavalier) wrote:Looks only promising for n/a applications or an extremely high revving engine...
or supercharged.
hmmmm supercharged.
have you read the
RULES yet?
my carDomain updated 6/11/10 Forged and Supercharged
Here is some interesting information:
I ran the following 3 heads in Desktop Dyno, a stock head(technically a stock LSJ, only flow sheet I could find), m2race's ported LSJ head, and ammfabs ported L61 head.
This simulation mimics my current engine build (Stock everything minus the Comp Stage 2 N/A Cams):
Crank Horsepower listed
Stock Head: 195HP / 193TQ
Stock Head + 1mm OS Valves: 200HP / 194TQ
m2race Head + 1mm OS Valves: 222HP / 198TQ
ammfab Head + 1mm OS Valves: 242HP / 204TQ
Desktop Dyno is very accurate software, My car put down 169whp this spring and its estimate was 195bhp....so almost bang on.
47bhp from a P&P head, job well done sir !!!!!!!!!!
