• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

How many rpms does the stock cam rev to?

  • Thread starter Thread starter 94Silverbullet
  • Start date Start date Oct 30, 2003
  • 1
  • 2
Next
1 of 2 Next Last

94Silverbullet

Member
Jan 3, 2003
488
0
17
MD
Oct 30, 2003
#1
  • Oct 30, 2003
  • #1
My car revs to 5000 and that's it. How can I make it rev more?
 

GTJake

Founding Member
Oct 28, 2002
3,049
0
56
Ann Arbor, MI
Oct 30, 2003
#2
  • Oct 30, 2003
  • #2
nm
 

2L8ULUZ2

Will kiss Moderator ass for title
Founding Member
Sep 24, 2000
3,033
14
99
WNC
Oct 30, 2003
#3
  • Oct 30, 2003
  • #3
Changing the cam will allow more rpm potential out of it but you are still going to be limited to probably no more than 5500-5600. You really do not need to take it past 6K anyway with the stock stuff since you run into the potential of a lot of problems.
 
S

sc302

New Member
Oct 15, 2003
178
0
0
Oct 30, 2003
#4
  • Oct 30, 2003
  • #4
2L8ULUZ2 said:
Changing the cam will allow more rpm potential out of it but you are still going to be limited to probably no more than 5500-5600. You really do not need to take it past 6K anyway with the stock stuff since you run into the potential of a lot of problems.
Click to expand...
Get a chip to take out the rev limiter? Do you have an auto, if so you will need to change your shift points. Mine goes to 6000+ with my t-5
 

94Silverbullet

Member
Jan 3, 2003
488
0
17
MD
Oct 30, 2003
#5
  • Oct 30, 2003
  • #5
sc302 said:
Get a chip to take out the rev limiter? Do you have an auto, if so you will need to change your shift points. Mine goes to 6000+ with my t-5
Click to expand...
mine is 5spd. you can rev to 6000 stock? What would make mine stop at 5k?
 

94Silverbullet

Member
Jan 3, 2003
488
0
17
MD
Oct 30, 2003
#6
  • Oct 30, 2003
  • #6
GTJake said:
nm
Click to expand...

? huh?
 
S

sc302

New Member
Oct 15, 2003
178
0
0
Oct 30, 2003
#7
  • Oct 30, 2003
  • #7
94Silverbullet said:
? huh?
Click to expand...
rev limiter could be but that shouldn't kick in until 6200 rpm's. I make power to 5400 rpm on the dyno then it falls off a bit, I don't know what your problem could be. Time for a trip to the tuner IMO.
 
S

shogun

Member
Mar 2, 2003
322
0
16
winfield,ks
Oct 30, 2003
#8
  • Oct 30, 2003
  • #8
you could have a bad tach. factory tachs are known to be off.
 

5.0 from 95

Founding Member
Nov 6, 2001
738
0
0
Emory, TX
Oct 30, 2003
#9
  • Oct 30, 2003
  • #9
I had a 99 GT with 16" wheels factory on it and it would shut off because of the size tires it had. Put a chip in and it did not shut off of anything after that. If it came stock with 17" wheels then you do not have those problems.


Paul
 

Joes95GT

New Member
Jan 23, 2003
3,132
1
0
Delaware
Oct 30, 2003
#10
  • Oct 30, 2003
  • #10
Your car should rev cleanly up until the limiter. Although it may not make any power past 5800 with your mods, the car should still be able to rev to 6250. It wouldn't be the factory tach because if the tach is off, you would still hit the limiter, but it would hit at 5000 or where ever the tach shows the limiter is. But if your car will flat out not rev past 5000, you have a problem.

Joe
 

94Silverbullet

Member
Jan 3, 2003
488
0
17
MD
Oct 30, 2003
#11
  • Oct 30, 2003
  • #11
Joes95GT said:
Your car should rev cleanly up until the limiter. Although it may not make any power past 5800 with your mods, the car should still be able to rev to 6250. It wouldn't be the factory tach because if the tach is off, you would still hit the limiter, but it would hit at 5000 or where ever the tach shows the limiter is. But if your car will flat out not rev past 5000, you have a problem.

Joe
Click to expand...

That's what I was affraid of.... Now what could the problem be?

It was fine until I got a valve replaced. My car is now a full second slower in the 1/4, and it traps 7
mph slower.
 
Y

yellow1995Cobra

New Member
Dec 23, 2002
2,959
2
0
Massachusetts
Oct 30, 2003
#12
  • Oct 30, 2003
  • #12
hmm sounds like you may have a serious problem.. Describe to us exactly what happens when you hit 5k rpms.. Does it "feel" like a rev limiter? And also did it rev fine before the issue with the valve?
 
B

BIGTONY26

New Member
May 31, 2002
30
0
0
LUFKIN, TEXAS
Oct 31, 2003
#13
  • Oct 31, 2003
  • #13
94Silverbullet said:
My car revs to 5000 and that's it. How can I make it rev more?
Click to expand...

See sig.. I shift it at 5800 on motor and 6k on the bottle.. IF i shift any less it looses mph and et... On the dyno it makes peak power at 5750 rpm on the motor but it does not really loose any meaningfull hp until 6100... My car made good power to 5 k with the stock heads, intake still on it.... Could yours be very lean???? (weak fuel pump, or mismatched/bad MAF?)
 

94Silverbullet

Member
Jan 3, 2003
488
0
17
MD
Oct 31, 2003
#14
  • Oct 31, 2003
  • #14
double post. see below.
 

94Silverbullet

Member
Jan 3, 2003
488
0
17
MD
Oct 31, 2003
#15
  • Oct 31, 2003
  • #15
yellow1995Cobra said:
hmm sounds like you may have a serious problem.. Describe to us exactly what happens when you hit 5k rpms.. Does it "feel" like a rev limiter? And also did it rev fine before the issue with the valve?
Click to expand...

yes, it was fine before the issue with the valves. When I get to 5k it just reaches it's limit and revs no further. it doesn't die. it just won't rev any further.


BIGTONY26 said:
See sig.. I shift it at 5800 on motor and 6k on the bottle.. IF i shift any less it looses mph and et... On the dyno it makes peak power at 5750 rpm on the motor but it does not really loose any meaningfull hp until 6100... My car made good power to 5 k with the stock heads, intake still on it.... Could yours be very lean???? (weak fuel pump, or mismatched/bad MAF?)
Click to expand...

I have after market heads. the fuel pump or MAF hadn't been changed. everything seems fine, and it runs strong until that exact 5k mark.
 
Y

yellow1995Cobra

New Member
Dec 23, 2002
2,959
2
0
Massachusetts
Oct 31, 2003
#16
  • Oct 31, 2003
  • #16
so your saying it hits 5k and wont rev to 5100? Sounds like valve float to me
 

Joes95GT

New Member
Jan 23, 2003
3,132
1
0
Delaware
Oct 31, 2003
#17
  • Oct 31, 2003
  • #17
I couldn't tell you exactly what it is, but I know it's not valve float. If your floating the valves, the car would rev, but wouldn't make power. If the rev's just stop, you have some other type of problem. Have you tried pulling any codes out of it?

Joe
 

94Silverbullet

Member
Jan 3, 2003
488
0
17
MD
Oct 31, 2003
#18
  • Oct 31, 2003
  • #18
yellow1995Cobra said:
so your saying it hits 5k and wont rev to 5100? Sounds like valve float to me
Click to expand...

nope. it won't go to 5100. it just stops at 5000.

Joes95GT said:
I couldn't tell you exactly what it is, but I know it's not valve float. If your floating the valves, the car would rev, but wouldn't make power. If the rev's just stop, you have some other type of problem. Have you tried pulling any codes out of it?

Joe
Click to expand...

It doesn't stop revving. it goes to 5000 and goes no further. If i stayed on the gas it would just drive at 5000 unless I shift to the next gear.

I've never pulled codes. How do I do that?
 

FastmanGT

Founding Member
May 22, 2002
587
0
0
Oklahoma City, Oklahoma
Nov 1, 2003
#19
  • Nov 1, 2003
  • #19
Try a fuel filter?
 

RayBrian

New Member
Apr 7, 2004
20
0
0
Apr 24, 2004
#20
  • Apr 24, 2004
  • #20
its either your fuel filter or you need a basic tuneup (rotator cup?)
i had this same problem on my 94 cobra a little ways back, the tuneup is what fixed it for me.
 
  • 1
  • 2
Next
1 of 2 Next Last
You must log in or register to reply here.

Similar threads

I
1994 Cobra - Fuel Pressure Drops Revving at Idle
  • IconicSilverGT500
  • Apr 11, 2026
  • 1994 - 1995 Specific Tech
Replies
16
Views
436
1994 - 1995 Specific Tech Apr 24, 2026
Mcmahst
8
Foxbody high rpms and surging rpms
  • 86foxseth
  • Jun 9, 2026
  • Fox 5.0 Mustang Tech
Replies
4
Views
207
Fox 5.0 Mustang Tech Jun 13, 2026
Noobz347
O
injectors keeping up?
  • optionizerSS
  • Apr 4, 2025
  • 2005 - 2014 S-197 Mustang -General/Talk-
Replies
4
Views
298
2005 - 2014 S-197 Mustang -General/Talk- Apr 4, 2025
optionizerSS
O
T
Resolved No run or idle
  • Thebluefox1
  • Oct 10, 2025
  • Fox 5.0 Mustang Tech
Replies
14
Views
524
Fox 5.0 Mustang Tech Nov 25, 2025
DadLife0724
W
Electrical 91 GT Alternator Replacement Question
  • willrh111
  • Oct 22, 2025
  • Fox 5.0 Mustang Tech
Replies
6
Views
373
Fox 5.0 Mustang Tech Oct 23, 2025
nickyb
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific 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?