Bassani

[Rage]

Has anyone wrapped their Bassani pro pipes and had problems with them cracking? I talked to Tom at North County Customs and he said that this would happen if i wrapped them? Im wondering why this product would, compared to other exhaust that get wrapped without issue.

[ohiomotoxer]

Originally Posted by Rage

Has anyone wrapped their Bassani pro pipes and had problems with them cracking? I talked to Tom at North County Customs and he said that this would happen if i wrapped them? Im wondering why this product would, compared to other exhaust that get wrapped without issue.

Where is the crack happening?
I know from manufacturing that allot of times the buffing department will sometimes get things "thin" in spots, especially in the primary to collector and primary to head collar areas.

Most other breaks are due to the bending person not setting the seam in the proper place before bending, this would account for a long split.

Funny, if you go to the Summit Racing catalog it says" NOTE: Wrap voids most header makers' warranties"

[darktrainer]

Mine have been wrapped for a year without a single problem.

[Rage]

thats good news darktrainer, cuz i ordered my pipes and wrap today.. i figured id chance it. The look is an intrical part of exhaust pipes.

[Ozzie In Arabia]

In a word Bullsh!t

Any weld that is "wrapped" actually has far less chance to crack because of the slowing down of the heat dissapating away from the weld.

Most cracking occurs due to the residual stress in the pipe from bending etc, and then welding in these hi stress location causes shrinkage stress as well which also adds to the problem and then good old vibration, particularly harmonic vibration cracks the welds.

A very close second is hydrogen embrittlement which changes the grain structure on thin metals during the electro-coating process. This symtom for want of a better word will also cause cracking, particularly at bracket attachements.

Brackets that are not fully welded and that flex at the weld will crack as well.

All the wrapping does is hide the problem until it is too late.

Grinding of any weld so that it has a smooth surface and blends smoothly into each wall or surface of the steel plate and or pipe changes the way the stress travels through the weld and does a great deal to minimise cracking.

All the best, Ozzie

[Rage]

thanks for the write up ozzie. more for me to think about. i figured if they crack....big deal ill weld um and wrap um again. But its interesting there are always two arguments to every issue.