• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

03 cobra boost

  • Thread starter Thread starter brian98gt
  • Start date Start date Aug 1, 2004

brian98gt

Founding Member
Mar 12, 2002
377
0
0
new jersey
Aug 1, 2004
#1
  • Aug 1, 2004
  • #1
i'm ready to start messing around with my 03 cobra and i want to go with a smaller pulley. i was wondering how much boost can the stock internals handle. i know the internals are forged, but there must be a limit.
 

TexasGT

New Member
May 24, 2003
28
0
0
Webster, Texas
Aug 1, 2004
#2
  • Aug 1, 2004
  • #2
brian98gt said:
i'm ready to start messing around with my 03 cobra and i want to go with a smaller pulley. i was wondering how much boost can the stock internals handle. i know the internals are forged, but there must be a limit.
Click to expand...

03 cobra motors are tough, I have some friends at Strictly Performance that are running Kenne Bell blowers with 17psi and 100 shot of nitrous making 650-700hp at the wheels. Also just make sure you get a good safe tune.
 

brian98gt

Founding Member
Mar 12, 2002
377
0
0
new jersey
Aug 1, 2004
#3
  • Aug 1, 2004
  • #3
i was thinking around 18-20 max. i already see about 13 psi with the 3.0 pulley and i want to go with the 2.8 wich should probably push about 15 psi. i will be adding an afco heat exchanger soon and i plan on getting the auxillary idler pulley kit and idlers from rpmoutlet.com onloy 400 for the 2.8 pulley, the pulley tool, a new belt, the auxillary tensioner, and 2 pulleys.
 
You must log in or register to reply here.

Similar threads

S
Mach 1 iac valve in a 4.6 gt
  • solodriverz
  • Jun 3, 2026
  • SN95 4.6L Mustang Tech
Replies
1
Views
100
SN95 4.6L Mustang Tech Jun 5, 2026
squeak93
T
Engine Removal of Steeda Underdrive pulley
  • THughes
  • Jun 30, 2026
  • 2005 - 2009 Specific Tech
Replies
1
Views
92
2005 - 2009 Specific Tech Jul 4, 2026
Dino Dino Bambino
O
Sooty/Oily Front Engine & Pulleys
  • ozenator
  • Jun 15, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
302
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 22, 2026
Blackhawkxx
C
Boosted Boss 302 HP/TQ
  • coltoncaskey12
  • May 24, 2026
  • 2010 - 2014 Specific Tech
Replies
0
Views
109
2010 - 2014 Specific Tech May 24, 2026
coltoncaskey12
C
E
4.6l auto to 5.4l 6 speed
  • EastanF5
  • Jan 22, 2026
  • SN95 4.6L Mustang Tech
Replies
0
Views
198
SN95 4.6L Mustang Tech Jan 22, 2026
EastanF5
E
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L 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?