ported E7TE vs GT40x

R

rudeone707

New Member

May 17, 2003

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Fairfield, Ca

Jan 16, 2004

#1

• Jan 16, 2004

• #1

i was reading on another boards and this guy said

"My stock heads that i home ported out flowed GT-40 X heads.which is plenty suffient for a mild build up"

is that true? looking at the chart below, int flows 32% better and exh flows 45% better.

 

red94fiveo

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Apr 12, 2003

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Wichita, KS

Jan 16, 2004

#2

• Jan 16, 2004

• #2

I'm going to throw up the BS flag on this one. I'll believe it when I see the numbers from a flow bench. I don't see there being any way that E7's could outflow the GT40x's.

 

Joes95GT

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Jan 23, 2003

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Delaware

Jan 16, 2004

#3

• Jan 16, 2004

• #3

I'm not trying to start a flame war with Thumper because I think Mike is an alright guy. Thumper is a professional and he doesn't even claim numbers that outflow an X head. I think he only claims that he can get a peak cfm of about 213, which is short of the X heads capabilities. Tell that guy he is an idiot.

Joe

 

VibrantRedGT

"STANGNET'S PENGUIN SMACKER"

15 Year Member

Nov 29, 1999

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Boca Raton, Florida

Jan 17, 2004

#4

• Jan 17, 2004

• #4

Joes95GT said:

I'm not trying to start a flame war with Thumper because I think Mike is an alright guy. Thumper is a professional and he doesn't even claim numbers that outflow an X head. I think he only claims that he can get a peak cfm of about 213, which is short of the X heads capabilities. Tell that guy he is an idiot.

Joe

Click to expand...

Oh but he does claim it will outflow the X.

http://thumperoforangepark.com/

 

yellow5.0cobra

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Jul 25, 2002

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In the garage, On the floor.

Jan 17, 2004

#5

• Jan 17, 2004

• #5

The second I find someone with a flowbench, I would love to see how much my home ported E7's will flow.

Fitted with swirl polished 1.94valves and 1.60exhaust, 67cc combustion chambers and .600lift springs.

I need to find the exhaust and intake CC next.

Gonna put these heads on the turbo notch we have in the back and see what she does with "stock" heads and stock cam. Hopefully dip into high 10's.

Pete

 

Joes95GT

New Member

Jan 23, 2003

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Jan 17, 2004

#6

• Jan 17, 2004

• #6

VibrantRedGT said:

Oh but he does claim it will outflow the X.

http://thumperoforangepark.com/

Click to expand...

Well I'll be damned. I guess I was wrong. I think where ever he got the X head data is a little wrong, because X heads should still be flowing 220 cfm or something like that.

Joe

 

95snoozer

Active Member

Dec 14, 2002

2,572

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RCR

Jan 17, 2004

#7

• Jan 17, 2004

• #7

you can match stock gt40X heads with ported and polished e7s with 1.90/ 160 valves

SVO GT40X Aluminum
I
1.94
65.2
126.7
172.5
202.5
216.0
214.8
-
-
Stock
Mustang & Ford - Dec. 1999

SVO GT40X Aluminum
E
1.54
52.7
105.3
145.3
149.4
149.1
149.1
-
-
Stock
Mustang & Fords - Dec. 1999

SVO GT40X Aluminum
I
1.94
65.8
129.5
181.5
222
243
-
-
-
Stock
MM&FF - Aug. 1997

SVO GT40X Aluminum
E
1.54
62.1
109.1
147
164
172.3
-
-
-
Stock
MM&FF - Aug. 1997

SVO GT40X Aluminum
I
1.94
54.6
107.8
159.5
197.2
217.4
227.8
234.5
-
Stock
MM&FF - Jan. 1998

SVO GT40X Aluminum
E
1.54
53.1
110.2
144.7
150.3
150.4
149.4
149.7
-
Stock
MM&FF - Jan. 1998

SVO GT40X Aluminum
I
1.94
53
113.5
169.6
206.5
225.6
230.1
-
-
Stock
5.0 Mustang - Feb. 1998

SVO GT40X Aluminum
E
1.54
49.9
106
138.8
152.8
159
160.6
-
-
Stock
5.0 Mustang - Feb. 1998

SVO GT40X Aluminum
I
1.94
63.4
120.9
178.4
219.7
238.9
236
-
-
Street Port Job
5.0 Mustang - Feb. 1998

SVO GT40X Aluminum
E
1.54
53
112.3
151.3
187.2
198.1
201.2
-
-
Street Port Job
5.0 Mustang - Feb. 1998

 

95snoozer

Active Member

Dec 14, 2002

2,572

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48

RCR

Jan 17, 2004

#8

• Jan 17, 2004

• #8

87 - 95 Mustang (E7TE)
I
1.90
64
122
174
203
215
-
-
CNC Ported
www.powerheads.com

87 - 95 Mustang (E7TE)
E
1.60
62
109
150
169
174
-
-
CNC Ported
www.powerheads.com
but you can see why gt40 Ps are better than both with their low lift numbers, small ports and high velocity. a stage 1 will have about 155-160cc intake runners.
GT-40P Cast Iron
I
1.84
61
128
169
195
196
193
-
Stock
Super Ford - May 1999

GT-40P Cast Iron
E
1.46
52
90
123
135
139
142
-
Stock
Super Ford - May 1999

GT-40P Cast Iron
I
1.84
65
124
173
203
207
203
-
Stage 1
Super Ford - May 1999

GT-40P Cast Iron
E
1.46
58
102
139
159
162
169
-
Stage 1
Super Ford - May 1999

 

Killercanary

The car that set the bar.

Founding Member

Nov 29, 1999

5,676

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Altoona, PA

Jan 17, 2004

#9

• Jan 17, 2004

• #9

Of all the GT40 castings, if I had to buy one, it'd most definitely be the GT40P just for the reasons 95 snoozer stated.

 

thumper460

Founding Member

Jul 24, 2000

3,022

2

56

Orange Park , Fl

Jan 17, 2004

#10

• Jan 17, 2004

• #10

seen above..here are a few different flows for the X heads... I guess the numbers I used on my site were of the conservative type!! But It really takes some good work in the bowls to get the 219 cfm on a stock valve, the exhaust is easier...actually to get the 155+ and If your using a die grinder and cutters... a good home port can get at least 180+ intake!! So dont be too quick to dis on a set of ported heads...cool?? Like we have always said, though... "what is Ported"?? To some, removing the EGR bump is ported ... matching the gaskets is ported, smoothing the bowls is ported...see??? Cool?? the E7s are 50 lbs, the GT40s are 55 lbs and the X are?? 40 lbs?? and that is worth something... but, yeah... E7s can be ported to out flow GT40X, and Darts, and a few more...

Just me.................................

Thumper

 

Killercanary

The car that set the bar.

Founding Member

Nov 29, 1999

5,676

1

76

Altoona, PA

Jan 17, 2004

#11

• Jan 17, 2004

• #11

And the GT40's, the darts, etc can be ported themselves as well... keep that in mind!

 

thumper460

Founding Member

Jul 24, 2000

3,022

2

56

Orange Park , Fl

Jan 18, 2004

#12

• Jan 18, 2004

• #12

Killer... and we all know the better the base head... the better the flow potential from Porting. Also the cost of the work vs the cost of a set already out of the box , I think a while back some one said... "if your going aftermarket... just get AFRs and be done with it." Cool?? But I believe the question posted was could ported heads flow better than the Xs and I think we tried to answer his question...???

Just me...............................

Thumper

 

G

Green 94 5.0

Founding Member

Mar 25, 2002

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Ft. Lauderdale, FL

Jan 18, 2004

#13

• Jan 18, 2004

• #13

Most roller cams are around .500-.545 lift. After the cam lift the additional flow isn't needed. Most roller hydraulic cams stop HP at or about 6200 RPM. NOS is all exhaust friendly and flow figures aren't that critical, as the NOS is in effect a supercharger. The low lift flow numbers are the torque builders. The faster the air starts flowing at extremely low valve lift is the key to filling the chambers. A correct 5 angle valve job, and bowl work (smoothing and blending) are far more critical than high flow numbers on a 6000 RPM small cubic inch engine.

Click to expand...

he calls it NOS