H/C/I swap

yellowmustang · Jul 30, 2008

whats up all, I'm doing my long awaited swap this week and I want to know what kind of ponies to expect with the setup
nothing major but I have "cobra intake w/65mm t/b , gt40 heads, f-cam, 1 5/8 bbk headers already on the car, 24# inj w/ matching maf I know gears dont make ponies but I have 3.73's and its a 5 speed all input along with "constructive critism" is welcomed

94darkhorse · Jul 30, 2008

I would guess @ 280 - 290ish.

5.0kid · Jul 30, 2008

i was going to guess around 250 to the wheels. thats estimated from what i've looked at online about the gt40 heads and my own set up i'm currently doing.

yellowmustang · Jul 30, 2008

will everything fair out ok since Im using the f-cam its with stock rockers on the gt40 heads and the eec in our car Ive always heard of idle issues is that an accurate statement considering I'm using the fcam

LAFENATU · Jul 30, 2008

I made 262 RWHP in my 92 LX.

75mm MAF
70mm TB
GT40 intake
GT40 Iron Heads
Cobra 1.7 Rockers
Crane 2031 Cam
Full exhaust (Shorty headers, Prochamber, Flowmaster catback)
T5
3.73's

5.0kid · Jul 30, 2008

wow, thats pretty good. i'm hoping my windsor jr's will help me out a little more than the gt40s i sold.

94 DropTop · Jul 30, 2008

how much power could i expect out of some gt40 irons ported?

LAFENATU · Jul 30, 2008

5.0kid said:
wow, thats pretty good. i'm hoping my windsor jr's will help me out a little more than the gt40s i sold.

Here are flow numbers for your info...

Windsor Jr Iron: 214/130

Windsor Jr Aluminum: 204/126

GT40 Iron: 187/129

LAFENATU · Jul 30, 2008

94 DropTop said:
how much power could i expect out of some gt40 irons ported?

Ported GT40's actually do pretty well for what they are..

Depends, are they professionally ported or done by john doe?

5.0kid · Jul 30, 2008

LAFENATU said:
Here are flow numbers for your info...

Windsor Jr Iron: 214/130

Windsor Jr Aluminum: 204/126

GT40 Iron: 187/129

wow, i didn't know the irons outflowed the aluminums. good info. hadn't seen these before and only knew they somewhat outperformed the gt40s.

LAFENATU · Jul 30, 2008

5.0kid said:
wow, i didn't know the irons outflowed the aluminums. good info. hadn't seen these before and only knew they somewhat outperformed the gt40s.

I have a full list of pretty much every head you could ever think of.

Cylinder head flow data

Even ported heads from Fox Lake, Patriot Ported, Total Engine Airflow etc.

I have stuff from Ford 2.0 Pinto all the way to 460ci heads..

I have a whole list...starting from:

Manufacturer
Part Number Port/Vol
Int/Exh
Valve Size
Combust. Chamber Volume

Int/Exh .100"
Int/Exh .200"
Int/Exh .300"
Int/Exh .400"
Int/Exh .500"
Int/Exh .550"
Int/Exh .600"
Int/Exh .700"
Int/Exh .800"
Int/Exh .900"
Average Int/Exh

Blood on Blood · Jul 31, 2008

N/A 331
Cobra intake (unported)
Cobra heads (unported)
Cam motion Cam

350 rwhp / 376 rwtq

The devil is in the details....

94 DropTop · Jul 31, 2008

Can someone give me a link to the article from on of the mustang mags on the head comparison.

Paul · Jul 31, 2008

Cylinder Head Flow Data:

http://www.jason.fletcher.net/tech/flowdata/castiron.htm

Oh, and I think that combo would make 250-260 rwhp.

Javi · Jul 31, 2008

Paul said:
Cylinder Head Flow Data:
http://www.jason.fletcher.net/tech/flowdata/castiron.htm

Nice info to have :thumb:

Stangbangin · Jul 31, 2008

Blood on Blood said:
N/A 331
Cobra intake (unported)
Cobra heads (unported)
Cam motion Cam

350 rwhp / 376 rwtq

The devil is in the details....

NA stands for Nitrous Assisted right? because I would like to know your magic secret of that combo.

94Pro-5.0 · Jul 31, 2008

Blood on Blood said:
N/A 331
Cobra intake (unported)
Cobra heads (unported)
Cam motion Cam

350 rwhp / 376 rwtq

The devil is in the details....

very impressive :thumb:

d_punch · Jul 31, 2008

Stangbangin said:
Blood on Blood said:

N/A 331
Cobra intake (unported)
Cobra heads (unported)
Cam motion Cam

350 rwhp / 376 rwtq

The devil is in the details....

Click to expand...

NA stands for Nitrous Assisted right? because I would like to know your magic secret of that combo.

i'm pretty sure the custom cam along with the extra cubes helped out a whole lot. but he could of had much more with better heads, and intake. i'm sure he could break 400 easy