EXHAUST POPPING?

DeadLifter

Member

Mar 1, 2006

183

2

19

Portland, IN

Apr 9, 2006

#1

• Apr 9, 2006

• #1

I've noticed that after 5,500 rpm I get a popping sound out the exhaust is this detonation from runnin 87 octane, leaning out or am I floating the valves other than that car runs great.

 

Z

ZephyrMotorspor

New Member

Jan 8, 2006

88

0

0

Tampa, Fl

Apr 9, 2006

#2

• Apr 9, 2006

• #2

no dude that's where the stock ignition redlines at lol.

 

DeadLifter

Member

Mar 1, 2006

183

2

19

Portland, IN

Apr 10, 2006

#3

• Apr 10, 2006

• #3

I had a 90 lx with way less mods than this that would pull 6,500 rpm's no problem. Gonna pull the cap and see if it and the rotor is worn think it might be jumpin spark kinda what it sounds like.

 

poneypower89

Now everyone in the world will know I wanna bang t

Dec 6, 2004

0

3

28

Indianapolis, Indiana

Apr 10, 2006

#4

• Apr 10, 2006

• #4

ZephyrMotorspor said:

no dude that's where the stock ignition redlines at lol.

Click to expand...

No, its good beyond 6,000+ rpm..

 

1988WHTGT

Member

Mar 31, 2005

270

0

17

Guyton, GA

Apr 10, 2006

#5

• Apr 10, 2006

• #5

I'd like to know what this is, I have noticed mine doing it more

 

9

90bronconate

New Member

Apr 24, 2005

124

0

0

Phoenix, AZ

Apr 10, 2006

#6

• Apr 10, 2006

• #6

i've always heard it's just the excess fuel igniting in the tail pipes. like mini backfires because the cats are gone

 

95GTV8

New Member

Jul 25, 2005

386

3

0

Washington State

Apr 10, 2006

#7

• Apr 10, 2006

• #7

90bronconate said:

i've always heard it's just the excess fuel igniting in the tail pipes. like mini backfires because the cats are gone

Click to expand...

i've heard the same, i noticed it once i put my O/R pipe on. I wish it didn't pop but o well. I notice it the most when i go to shift. Not powershifting but just regular shifting and when the rpms drop between shifts it pops.

 

DeadLifter

Member

Mar 1, 2006

183

2

19

Portland, IN

Apr 10, 2006

#8

• Apr 10, 2006

• #8

It only does it when I'm on the gas. I wouldn't think it's excess fuel because I'm only running 19# injectors with my set up and I don't think I'm gettin more gas than I need at 5,500 rpm's. I'm thinkin it might be in the ignition somewhere. Could be wrong though. It cuts power when it does it too.

 

DeadLifter

Member

Mar 1, 2006

183

2

19

Portland, IN

Apr 10, 2006

#9

• Apr 10, 2006

• #9

I guess stock tach could be off too.

 

795.0pacecar

lover of pudgy polygamists

Jul 11, 2003

480

0

17

Senoia, GA

Apr 10, 2006

#10

• Apr 10, 2006

• #10

Its highly likely that the stock tach is off. Your probably just hitting the rev limiter.

 

Roland69

Sergeant Tangnet

Sep 17, 2005

2,867

2

58

Port Elgin, Ontario

Apr 10, 2006

#11

• Apr 10, 2006

• #11

the stock tach is poo

 

oldschool88vert

New Member

Sep 1, 2006

41

0

0

lafayette, la.

Sep 8, 2006

#12

• Sep 8, 2006

• #12

get a short belt and bypass your air pump if you don't have cats.