Installed exhaust, interesting symptoms.

[TheAmazingDave]

Sweet. 500 hp is WAY past my goals.

On a side note, I think what I'm experiencing with the transmission is the torque converter transitioning to full lock. The power is definately making it to the ground, so I don't think it's slipping, maybe I'm just paranoid again.

Still doing a fluid flush, didn't have time tonight.

 

[theKnifeArtist]

Does it feel choppy at higher RPM's? Is the MIL light coming on?

i'm still interested in the answer to this, what does it mean?

 

[johnathan1]

i'm still interested in the answer to this, what does it mean?

Boost leak...

 

[starscream5000]

what does that mean..because i've gotten that.

yeah and my auto slips from 1st to 2nd..it sucks big nuts. it makes my rear end swing out all the time.

also..3" downpipe and 3.5" catback? isnt the dp bottlenecking the 3.5" catback? someone explain please, thanks.

Hold your horses, I'm usually not on after 5:00 pm central time . When I said choppy I was checking to see if he was having a spark plug blowing out at higher RPM's/boost, leading me to think that if it was, he would want to try and close the gap on the plugs a little bit, or replace them if they are worn. Or it could have been another problem with the ignition system.

Also. a 3" downpipe/testpipe going into a 3.5" catback is not an bottle neck, it's actually a good idea. As the exhaust gases get farther away from the engine, they cool down, cooler gases expand, and the majority of exhaust gas coming out of your tailpipe travels through the pipe on the edges of the pipe, not through the middle of it. Going with an increasing exhaust size setup will decrease backpressure and speed up the exhaust exiting your system. So theoretically (sp?) a 3" downpipe w/integrated elbow, into a 3.5" testpipe (or 3.25") then into a 4" catback (or 3.5" if you do the 3.25" testpipe) would be a most optimal setup . Make sense?

 

[gilberjj]

Also. a 3" downpipe/testpipe going into a 3.5" catback is not an bottle neck, it's actually a good idea. As the exhaust gases get farther away from the engine, they cool down, cooler gases expand, and the majority of exhaust gas coming out of your tailpipe travels through the pipe on the edges of the pipe, not through the middle of it. Going with an increasing exhaust size setup will decrease backpressure and speed up the exhaust exiting your system. So theoretically (sp?) a 3" downpipe w/integrated elbow, into a 3.5" testpipe (or 3.25") then into a 4" catback (or 3.5" if you do the 3.25" testpipe) would be a most optimal setup . Make sense?

why would the exhaust expand as it was cooling?

 

[BorHor]

why would the exhaust expand as it was cooling?

It is the gases that expand.

 

[7MGTEsup]

It is the gases that expand.

Gases contract as they cool, or an internal combustion engine wouldn't work being as the rapid expansion of the gas when it ignites is what forces the piston down the cylinder.