exhaust pops WTF??

DemonGT · 07-01-2001, 01:03 AM

i just installed a TFS street heat intake and accufab 70mm TB a little while ago and after words i didnt notice any prob but now all of a sudden when i take off and shift to second the exhaust pops..same when shifting to third but not as loud...am i runing rich??? and when i take off from a stop sign when the clutch catches it goes but then all of a sudden it doggy then all a sudden it goes again ...any suggestions?

------------------
'91 GT,91K,T-5,air silencer removed,HD clutch,K&N air filter,Mac long tubes,Cat-back,off road H,FMS 9mm wires,180 thermostat,Competition gauges,C&L 76mm MAF,Accufab 70mm TB,TFS street heat intake

Waiting install:Nothing

Future Mods:3.73's,Pro 5.0,TFS heads,TFS stage 1 cam,lakewood struts/shocks,nitto DR's
ICQ#35670781

Jeff7477 · 07-01-2001, 01:10 AM

Sounds like you have a leak somewhere. Did you use the right gaskets and torque them correctly?

PKRWUD · 07-01-2001, 08:31 AM

Yeah, look for a vacuum leak. popping in the exhaust is a sign of a lean condition, not a rich one. Check for vacuum leaks and double check your fuel delivery.

Take care
~Chris

------------------
Retired Moderator
MustangNet
My site: JimPorterRacing
RACECAR spelled backwards is RACECAR

HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!

07-01-2001, 01:03 AM	#1
DemonGT Registered Member Join Date: Aug 2000 Location: Wisconsin Posts: 879	exhaust pops WTF?? i just installed a TFS street heat intake and accufab 70mm TB a little while ago and after words i didnt notice any prob but now all of a sudden when i take off and shift to second the exhaust pops..same when shifting to third but not as loud...am i runing rich??? and when i take off from a stop sign when the clutch catches it goes but then all of a sudden it doggy then all a sudden it goes again ...any suggestions? ------------------ '91 GT,91K,T-5,air silencer removed,HD clutch,K&N air filter,Mac long tubes,Cat-back,off road H,FMS 9mm wires,180 thermostat,Competition gauges,C&L 76mm MAF,Accufab 70mm TB,TFS street heat intake Waiting install:Nothing Future Mods:3.73's,Pro 5.0,TFS heads,TFS stage 1 cam,lakewood struts/shocks,nitto DR's ICQ#35670781

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Cobra-R Side Exhaust -- SWEEET!	SkammyManX	Modular Madness	3	04-05-2003 11:58 AM
exhaust cross-overs??	Simi Stang	Windsor Power	7	12-09-2002 01:20 PM
Speed Secret # 4	jim_howard_pdx	Windsor Power	13	11-10-2002 03:42 PM
Speed Secret # 3	jim_howard_pdx	Windsor Power	13	11-09-2002 10:35 AM
Header gaskets	Stang951	Windsor Power	18	11-01-2002 05:57 PM

07-01-2001, 01:10 AM	#2
Jeff7477 Registered Member Join Date: Jun 2001 Location: Lincoln, Nebraska USA Posts: 67	Sounds like you have a leak somewhere. Did you use the right gaskets and torque them correctly?

07-01-2001, 08:31 AM	#3
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Yeah, look for a vacuum leak. popping in the exhaust is a sign of a lean condition, not a rich one. Check for vacuum leaks and double check your fuel delivery. Take care ~Chris ------------------ Retired Moderator MustangNet My site: JimPorterRacing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!