TIG Welding - Engineering & art combined

[MyM8V8]

Just had a great morning being taught how to set up and use my Tig plant by VO03UTE (Dave).

He's a brilliant welder and the whole experience was quite inspiring. Thanks for that Mate.

Now looking forward to putting together a new stainless cat back, with all the various bits I have been collecting for some time.

[Drew SS]

Sounds good looks like there are a few doin there own exhausts these days nice 1

[ringram]

I certainly hope you are using 3" pipe mate

[wallsjay]

What system is on yours at presant mate?

[MyM8V8]

wallsjay said:

What system is on yours at presant mate?

1.3/4" Wortec LT headers. 2.5" by pass pipes. Stock HSV H-pipe and middle boxes (these are straight through), back boxes replaced with 10" shorty straight throughs. All dual 2.5" back from Wortec 3" collectors. Unfortunately, not loud enough, and meets emissions as well?

[MyM8V8]

Drew SS said:

Sounds good looks like there are a few doin there own exhausts these days nice 1

You have to be very careful what you do and how you do it. IIRC, Kiwifraser altered his cat back and lost horsepower over the stock system.

[Drew SS]

MyM8V8 said:

Drew SS said:

Sounds good looks like there are a few doin there own exhausts these days nice 1

You have to be very careful what you do and how you do it. IIRC, Kiwifraser altered his cat back and lost horsepower over the stock system.

Yes very true gareth thats why it pays to dyno ur car before u touch it still good to see though good luck with it

Edited by Drew SS on Sunday 2nd August 15:15

[ringram]

MyM8V8 said:

Drew SS said:

Sounds good looks like there are a few doin there own exhausts these days nice 1

You have to be very careful what you do and how you do it. IIRC, Kiwifraser altered his cat back and lost horsepower over the stock system.

You want to keep velocity up. But not by a small pipe. Obviously large area's will slow the gasses down. Backpressure is always bad.
This is always a good read http://www.superchevy.com/technical/engines_drivet...

If you are making it up your self mate, why dont you put a dump pipe in there with one of those electric QTP valves?
Then you can drop the gas right after the collector for track action and when visiting Wolfy.

[wolfracer]

ringram said:

If you are making it up your self mate, why dont you put a dump pipe in there with one of those electric QTP valves?
Then you can drop the gas right after the collector for track action and when visiting Wolfy.

Now THATS an !