[BigRedTruck]

94 yota 22re w/ LC Engineering heads..

Well I think I screwed myself.
I always had trouble getting the midpipe <to> header downpipe to stay sealed at the flange connection. So I decided it would be a good idea to have the shop weld in a flex pipe (braided type) at the junction to replace the flanged connection.

Well it was installed and it sounded like a VW beetle when I get on it, (past part throttle) So I thought there was a leak ( bad weld ) or something.
I took it in, they told me the original flex pipe was too short and it was pulling apart from the movement of the engine.. (eh..kinda made sense..but it was free to fix it) they went to weld in a longer pipe. The longer pipe is even worse, and they did a great job on the welds..

I figured out what it was.. Remember those ribbed plastic tube noise makers you swung around as a kid, that made that loud whistle..Well the inside of the flex tube is ribbed. So I figure with enough pressure of exhaust is making it resonate/whistle.

The fix?? Well since I dont want to cut anymore from my LC Engineering headers. I going to try and wrap the flex pipe with header wrap to see if this helps at all.. My buddy who had the same problem with his Maxium use the wrap for the same problem

Has anyone else had this issue with a flex pipe like this? has anyone found a remedy? or a better way to seal the midpipe to header down-pipe.

thanks
Geoffrey

 

[Flashmn]

Umm, unless you have a straight pipe the resonators should tone it down. You have an exhaust leak if you're experiencing a "buzz".

 

[Roylpope]

Did the LC Engineering head give you any significant power gain for the money spent????

Only thing I don't like about my 94 extended cab pickup is the severe lack of power. No hp and no torque. :sosad:

Thanks,
Roy

 

[IronNam]

Did the LC Engineering head give you any significant power gain for the money spent????

Only thing I don't like about my 94 extended cab pickup is the severe lack of power. No hp and no torque. :sosad:

Thanks,
Roy

[email protected]
[email protected]

^^ that plus a truck weighing around 2900lbs, isn't gunna be fast.

but be glad you have more torque than honda's

 

[Roylpope]

"but be glad you have more torque than honda's"

Maybe so, but my 90 Accord pulled my small utility trailer better than my truck does. :sosad:

Roy

 

[IronNam]

"but be glad you have more torque than honda's"

Maybe so, but my 90 Accord pulled my small utility trailer better than my truck does. :sosad:

Roy

haha, I4 accord?

eh, i did beat my cousin's civic 1994...

 

[Roylpope]

Yes, 16 valve, 4 cylinder. Stock Accord 4 door sedan with 5 speed.

 

[BigRedTruck]

Well now that this thread has totally gone off course I figured I would add something

After double checking , there was no exhaust leak, I check with soapy water , got a leak tester probe. and nothing, The sound was coming from inside the flexpipe..

I wrapped the flexpipe with some header wrap I had left over from my mustang project.

After the wrap finished smoking and burning off the residue the noise is gone 100%