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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

Fox B303 GT40p Power Estimate

  • Thread starter Thread starter 93CalypsoConvert
  • Start date Start date Dec 4, 2022

93CalypsoConvert

Active Member
Nov 26, 2020
275
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38
Virginia
Dec 4, 2022
#1
  • Dec 4, 2022
  • #1
I'm sure somewhere there is another post about this but I'm too lazy to go find it. Also, there is not a dyno close to me so I can't go see for myself.

I have a holley sniper efi system, high performance intake manifold, iron GT40p heads, B303, stock rockers, stock bottom end, 1 5/8 shorty headers, no emissions, and exhaust is just two flowmaster 40s.

I'm guessing around 250-270 crank? If anyone has some real numbers let me know.
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
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#2
  • Dec 4, 2022
  • #2
You could find something close here:

Guess My H P !!! - The Dyno & 1/4 Mile Time Thread

UPDATE - FastDriver (26AUG13): After some recent interest in the forums, this thread is again active. Please feel free to add your own dyno, timeslip, and mods. The more details you can provide, the better. Posts without documentation will eventually be deleted. This thread exists to give...
stangnet.com
Unless you're more lazy than me
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,233
17,919
224
Massachusetts
Dec 4, 2022
#3
  • Dec 4, 2022
  • #3
Prob around 275-285 crank, all depending on supporting mods. 93 cobras were around 275 crank with the standard gt40 and the 40p is an improved version technically.
 
Last edited: Dec 4, 2022

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
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9,296
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Dec 4, 2022
#4
  • Dec 4, 2022
  • #4
245rwhp. cam, heads.

Kurt
 
Reactions: 2000xp8 and 93CalypsoConvert

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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#5
  • Dec 5, 2022
  • #5
Dont feel bad, according to revhead I also have heads... but your really fkd, you have a cam too.... LOL
 
Reactions: revhead347

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
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203
polk county florida
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#6
  • Dec 5, 2022
  • #6
Opinions, just opinions, some with more experience than others, my opinion would be for schlepping around town grabbing a burger, going to the car show they work ok, the cam can be finicky at low rpms but the idle is old school fox body sexy, there are better cams and heads out there, technology marches on.
 
Reactions: limp

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,233
17,919
224
Massachusetts
Dec 5, 2022
#7
  • Dec 5, 2022
  • #7
I've said this a few times here on the forum.

One of my favorite combos I got to drive a few times when i was younger was a friend's 93 LX with a 302, GT40P heads, Cobra intake, and a B303 camshaft. Had headers, off-road Hpipe and flows. 5-spd with factory 3.08's. Car had torque and was plenty of fun to rip around with.

Yes, there are better parts out there, but there are always going to be better combos out there. Sometimes less is more
 
Reactions: limp

93CalypsoConvert

Active Member
Nov 26, 2020
275
91
38
Virginia
Dec 5, 2022
#8
  • Dec 5, 2022
  • #8
It sucks when your 20+ year old heads and cam aren’t as good as modern ones lol
 

limp

wrap a little cheese around it and its a done
5 Year Member
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#9
  • Dec 5, 2022
  • #9
93CalypsoConvert said:
It sucks when your 20+ year old heads and cam aren’t as good as modern ones lol
Click to expand...
As good for what??
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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#10
  • Dec 5, 2022
  • #10
Mustang5L5 said:
I've said this a few times here on the forum.

One of my favorite combos I got to drive a few times when i was younger was a friend's 93 LX with a 302, GT40P heads, Cobra intake, and a B303 camshaft. Had headers, off-road Hpipe and flows. 5-spd with factory 3.08's. Car had torque and was plenty of fun to rip around with.

Yes, there are better parts out there, but there are always going to be better combos out there. Sometimes less is more
Click to expand...
Similar to mine, but with a carb and TF stage 1 cam...... As you said, I hope its going to be lots of fun..
Will it be the fastest car at the Drags?? WHO CARES........ LOL
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
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203
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#11
  • Dec 5, 2022
  • #11
You need to clean and paint that nasty looking heater hose connection.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Dec 5, 2022
#12
  • Dec 5, 2022
  • #12
General karthief said:
You need to clean and paint that nasty looking heater hose connection.
Click to expand...
LOL, its funny what people see in pictures...... I have a new one I am using.....
That old can style coil bracket is gone too......
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
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Claremore, OK
Dec 5, 2022
#13
  • Dec 5, 2022
  • #13
 
Reactions: General karthief

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,296
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Acworth, GA
Dec 7, 2022
#14
  • Dec 7, 2022
  • #14
I'm just afraid that if we all don't get with the times, we are going to be those guys with the "double camel humps, and the 3/4 race cam."

Kurt
 
Reactions: General karthief

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,550
203
polk county florida
Dec 7, 2022
#15
  • Dec 7, 2022
  • #15
revhead347 said:
I'm just afraid that if we all don't get with the times, we are going to be those guys with the "double camel humps, and the 3/4 race cam."

Kurt
Click to expand...
I hear ya on the 'behind the times' thing,
 

LILCBRA

I wish I didn't have all of these balls in the air
Mod Dude
Dec 6, 2005
6,347
5,322
194
Corn County USA
Dec 9, 2022
#16
  • Dec 9, 2022
  • #16
A little late to the party, but this:

revhead347 said:
I'm just afraid that if we all don't get with the times, we are going to be those guys with the "double camel humps, and the 3/4 race cam."

Kurt
Click to expand...

is kinda how I feel when I see people posting "stage X" [cam, clutch, suspension, etc] and [part] delete. Granted, most manufacturers are listing parts that way and if you're really interested you can look up specs. But it always bothers me when someone describes their ride as having a "muffler delete." No dumbass, you just removed your muffler to make your car LOUD. It's not like it disappeared at the stroke of a key on your laptop.

New slang vs old slang.... - I guess I'm just getting old and cranky.....
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,002
21,183
234
Box behind Walmart
Dec 9, 2022
#17
  • Dec 9, 2022
  • #17
I used to run a B-cam in a stock 86 bottom end with a Kenne Bell sitting on top.

I don't recommend this as odd things began to happen when I cranked the engine over and achieved idle:



@General karthief was sitting in the passenger seat and says, "No"!

Luckily we were able to cross the streams and seal the gate to hell.

That was the last time I tried a B cam in a Ford block with boost. Thankfully we never got to WOT. Who knows what would have happened?


They are not made from materials found on this plane.
 
Reactions: General karthief
M

mrspeed

15 Year Member
Mar 2, 2012
27
13
13
North Carolina
Dec 10, 2022
#18
  • Dec 10, 2022
  • #18
General karthief said:
I hear ya on the 'behind the times' thing,
Click to expand...
I do enjoy the look on peoples faces when I use terms like "rams horns & 3/4 race cam" though ... or telling kids my 408 11R Windsor is a "302 with a Holley 600 & flows".
 
Reactions: Monkeybutt2000, limp and General karthief

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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173
Florida
Dec 10, 2022
#19
  • Dec 10, 2022
  • #19
mrspeed said:
I do enjoy the look on peoples faces when I use terms like "rams horns & 3/4 race cam" though ... or telling kids my 408 11R Windsor is a "302 with a Holley 600 & flows".
Click to expand...
The best kids face I love to see is when someone uses a rotary dial phone on TV..... LOL......
 
Reactions: mrspeed

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,296
1,640
214
Acworth, GA
Dec 13, 2022
#20
  • Dec 13, 2022
  • #20
LILCBRA said:
A little late to the party, but this:



is kinda how I feel when I see people posting "stage X" [cam, clutch, suspension, etc] and [part] delete. Granted, most manufacturers are listing parts that way and if you're really interested you can look up specs. But it always bothers me when someone describes their ride as having a "muffler delete." No dumbass, you just removed your muffler to make your car LOUD. It's not like it disappeared at the stroke of a key on your laptop.

New slang vs old slang.... - I guess I'm just getting old and cranky.....
Click to expand...

As someone who has had a Trick Flow "stage 3 cam" and built an engine with camel hump heads, I am self critical. To add to your story, I am part of a group for a particular hot hatchback. Unfortunately they let guys in from the last generation of that hatch which was basically an economy car with a body kit. These dudes are talking about a "rear windshield wiper delete mod." You haven't modded , you have made your car worse. Now you can't see the car behind you, because you can't wipe the water off your rear windshield after it has sucked all the water up off the road.

Kurt
 
Reactions: 90sickfox
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