Mandrel bending vs regular pipe bending

[euro_urs4]

Hey guys I'm i'n the states and it's impossible to find someone to mandrel bend a 3 i'n downpipe for my hx40 i was wondering if i could have someone bend me a one piece from a regular pipe bender or is welding it up with out and major kinks and bends better?

[terrybullwon]

Hey guys I'm i'n the states and it's impossible to find someone to mandrel bend a 3 i'n downpipe for my hx40 i was wondering if i could have someone bend me a one piece from a regular pipe bender or is welding it up with out and major kinks and bends better?

I mitered and then gas purged my down pipe as it is 102mm. You could simply buy the 3" elbows and then weld them to how you want your down pipe. Its pretty Rare that some one would mandrel bend a down pipe for these cars.

[euro_urs4]

I mitered and then gas purged my down pipe as it is 102mm. You could simply buy the 3" elbows and then weld them to how you want your down pipe. Its pretty Rare that some one would mandrel bend a down pipe for these cars.

Hmm interesting, what do you mean by gas purging and the welds doesn't effect the air flow i'n any way

[AndyP]

Back purging is where you seal both ends of the pipe and fill it with sheilding gas ( Argon ) to stop the other side of the weld getting comtaminated. Results in much smoother, neater weld that will not dissrupt airflow.

[euro_urs4]

Back purging is where you seal both ends of the pipe and fill it with sheilding gas ( Argon ) to stop the other side of the weld getting comtaminated. Results in much smoother, neater weld that will not dissrupt airflow.

Awesome didn't knowthat thanks!! I might have to go that route with my down pipe

[euro_urs4]

ok another question for you guys, is it ok to have a downpipe bent by a pipe bender, having a few kinks here and there possibly? or is it better to try and weld it would there be any defects in using a pipe bender that might put a few small kinks on the bends