• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

300 RWHP with stock heads and cam

  • Thread starter Thread starter 91notchbk
  • Start date Start date Nov 20, 2006
Prev
  • 1
  • 2
  • 3
  • 4
  • 5
Next
First Prev 3 of 5 Next Last

blackened88lx

Active Member
Aug 9, 2006
0
4
28
Connecticut
Dec 26, 2006
#41
  • Dec 26, 2006
  • #41
/\ You should advise them to fix their dyno.
 

25thmustang

Mustang Master
Sep 5, 2003
2,021
85
99
Montgomery, NY
Dec 26, 2006
#42
  • Dec 26, 2006
  • #42
Wow if this is true, thats impressive. Our GT40P, 11 second car only put down 292!
 

tmoss

Gettin Wired
Founding Member
Jun 28, 2001
7,153
32
128
Saint Louis, MO
Dec 26, 2006
#43
  • Dec 26, 2006
  • #43
PrimerdFury said:
I dynoed 304rwhp/324rwtq with ported E7's, an e-cam and an edelbrock performer rpm manifold and no crazy tricks (smog pump bypassed).
Click to expand...

Tell us more about the head's specifics and flow (who did them too) and the cam.
I'd love to see the dyno curve if that is possible also. That is about the most I've seen claimed from a non-pro race engine.
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Dec 30, 2006
#44
  • Dec 30, 2006
  • #44
I have a Thumper/T-Moss combo with a stock cam and 1.7 RR's ,custom exhaust with cats 65mm TB and an 80mm MAF and power pipe. Never had it dynoed yet but I think I have 300 at the flywheel!
 
F

FullAuto

Founding Member
Aug 29, 2002
157
0
16
Midwest City, Ok
Dec 30, 2006
#45
  • Dec 30, 2006
  • #45
tmoss said:
Tell us more about the head's specifics and flow (who did them too) and the cam.
I'd love to see the dyno curve if that is possible also. That is about the most I've seen claimed from a non-pro race engine.
Click to expand...

I'm thinking it's a carb motor.

I made 262rwhp 328rwtq with Thumpers, Performer RPM intake and a .545/.545 218/224 114 cam through an AOD. It still had a/c and the stock fan too.
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Dec 30, 2006
#46
  • Dec 30, 2006
  • #46
FullAuto said:
I'm thinking it's a carb motor.

I made 262rwhp 328rwtq with Thumpers, Performer RPM intake and a .545/.545 218/224 114 cam through an AOD. It still had a/c and the stock fan too.
Click to expand...

High speed stall?
 
F

FullAuto

Founding Member
Aug 29, 2002
157
0
16
Midwest City, Ok
Dec 31, 2006
#47
  • Dec 31, 2006
  • #47
GTOReturns said:
High speed stall?
Click to expand...

3500 stall
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Dec 31, 2006
#48
  • Dec 31, 2006
  • #48
FullAuto said:
3500 stall
Click to expand...

They rob you of HP on a dyno.
 

tmoss

Gettin Wired
Founding Member
Jun 28, 2001
7,153
32
128
Saint Louis, MO
Dec 31, 2006
#49
  • Dec 31, 2006
  • #49
but they make you hole-shot and ET real nice.........that's why dyno testing for an auto is all about A/F - take it to the track for the real numbers imo.
 

aleborjas

New Member
Sep 11, 2005
610
0
0
Dec 31, 2006
#50
  • Dec 31, 2006
  • #50
25thmustang said:


GT40 Valves!


you said before you had stock valves...
congrats you car is pretty fast for what you have!
Click to expand...
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Dec 31, 2006
#51
  • Dec 31, 2006
  • #51
tmoss said:
but they make you hole-shot and ET real nice.........that's why dyno testing for an auto is all about A/F - take it to the track for the real numbers imo.
Click to expand...

Agree'd 100% I have a 2800 Precision Industries!!
 

gtxracing

New Member
Feb 5, 2007
49
0
0
Feb 5, 2007
#52
  • Feb 5, 2007
  • #52
I know that this is an old post but I have to disagree. Athough I have the 88 GT stang which is stock 220hp, with my MSD setup with very bad, need to be replaced, falling plug wires, and my TFS Stage II Cam, I made barely over 300hp. That was just replacing my spark plugs. I can't wait to see the restored power after replacing cap and roter and new wires.

Oh yeah, I am running a Holley 600 Carb
 

blackened88lx

Active Member
Aug 9, 2006
0
4
28
Connecticut
Feb 6, 2007
#53
  • Feb 6, 2007
  • #53
What do you have for heads/intake??
 

gtxracing

New Member
Feb 5, 2007
49
0
0
Feb 6, 2007
#54
  • Feb 6, 2007
  • #54
Stock GT-40 Explorer heads, Torker II manifold, all I did was replace the springs with stronger ones made for that cam and did timing.

I'll be moving to a Victor Jr. Soon
 

gtxracing

New Member
Feb 5, 2007
49
0
0
Feb 6, 2007
#55
  • Feb 6, 2007
  • #55
Viking88 said:
IMHO the parts you listed will get ya in the 240whp range. I agree w/ Dman your going to have to change more than that to get 300rwhp. Most ppl w/ the trickflow top end kit on a 302 are making 290-300rwhp. 50 or 60whp is not easy to come by without major changes or nitrous.
Click to expand...


The part above is what made me respond... not being mean or anything, just saying
 

tmoss

Gettin Wired
Founding Member
Jun 28, 2001
7,153
32
128
Saint Louis, MO
Feb 6, 2007
#56
  • Feb 6, 2007
  • #56
Getting 300rwhp in peak numbers is much easier with a carb setup........but they don't have the bottom-mid range that an EFI does - and the EFI suffers peak numbers as a trade off. Can't compare EFI to carb, apples and oranges.
 

25thmustang

Mustang Master
Sep 5, 2003
2,021
85
99
Montgomery, NY
Feb 6, 2007
#57
  • Feb 6, 2007
  • #57
Also a GT40 head will make more power than an E7. My dads GT40 combo made great power and might even make more in my brothers daily driver (was doing 292 on a 100 degree humid day). I agree the curve is more important than the peak numbers!
 

gtxracing

New Member
Feb 5, 2007
49
0
0
Feb 7, 2007
#58
  • Feb 7, 2007
  • #58
I agree with you both...

It's funny how millions of people will tell me no no it won't work because you have to do this, and do that and blah blah blah <-- that point means I can give a crap LOLOL

I bought the stuff and it worked so hmm LOL. I believe power is all about what you add to the car and not trying to overdo it. Like the cam situtation. Pople told me I have to buy a stall converter... (I HAVE A FREAKIN 5 SPEED DUMBO!!!). Then others say that I have to buy heads because stock heads or gt-40 heads won't work with a Stage 2 tFS cam.... WHAT1!!!!??? Well at least I wasn't the one who bought a mustang and put skinnies on the back and big meaty tires on the front LOL
 

gtxracing

New Member
Feb 5, 2007
49
0
0
Feb 7, 2007
#59
  • Feb 7, 2007
  • #59
What do you think of a single turbo setup on a stock stang GT?

Everything you might wanna know...
http://www.moddedmustangs.com/forums/garage.php?mode=view_vehicle&CID=43
 

giddyup306

Founding Member
Oct 22, 2002
3,041
2
59
Feb 8, 2007
#60
  • Feb 8, 2007
  • #60
tmoss said:
cleanLX has 230cfm pro-ported E7 heads (Power Heads with extra work), a custom Buddy Rawls cam and my ported stock intake with two uppers - a long and shorter runner version with long tubes. With a 60mm TB and a ported stock length upper he put down 280RWHP/330RWTQ. Switched to the shorter upper version intake and a 65mm TB and made 292RWHP/325RWTQ. That's the most I've seen documented (dynos) in a non-race engine running stock ported parts so far. Maybe others have similar results and will report.
Click to expand...

Damn those heads were WORKED! A friend of mine did a set of e7s not that long ago and could only get them up to 220. Don't get me wrong that has potential for a stout 302. Do you have any idea how much money it cost to port them out to that extreme?

That actually folowd better than my out of the box Performer RPM heads (6025). They only flowed 215-220.
 
Prev
  • 1
  • 2
  • 3
  • 4
  • 5
Next
First Prev 3 of 5 Next Last
You must log in or register to reply here.

Similar threads

Engine Suggestions on an engine rebuild. Stock cam/GT40Ps or aftermarket on both for a fun weekend driver?
  • MadSquirrelTech
  • Apr 28, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
23
Views
862
Fox 5.0 Mustang Tech May 7, 2026
MadSquirrelTech
H
Forced Induction On3 Turbo Kit- Parts list NEEDED - 302 Stock Motor
  • Hirothecool1
  • Feb 27, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
21
Views
1K
Fox 5.0 Mustang Tech Mar 7, 2026
slow84lx
S
9
Forced Induction Prepping for supercharger on non-stock build
  • 91fox427
  • Nov 25, 2025
  • Fox 5.0 Mustang Tech
Replies
7
Views
432
Fox 5.0 Mustang Tech Jan 5, 2026
Qtrhrse23
Q
I
Engine What Aluminum Heads???
  • Iceman1998
  • Sep 8, 2024
  • Fox 5.0 Mustang Tech
Replies
19
Views
2K
Fox 5.0 Mustang Tech Sep 15, 2024
Noobz347
6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
972
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?