chpmnsws6

iTrader: (12)

It does "some", but unless your cutting a LOT of aluminum, the steel you cut in between aluminum cuts will keep the disc clean. Plastic is the biggest killer for us with grinders and the cutoff wheel. It cakes fast, holds the heat, and shatters the discs in no time if you don't keep them clean

Sorry for the thread jack. Now back to the sweet exhaust

Braineack

iTrader: (62)

I could have saved myself so much trouble and just replaced my resonator with a lesonator! I just looked it up, the lesonator is able to reduce the dB output of an exhaust by over 50dBs by use of "muff diving"; unlike a muffler, who's sole purpose is "muffling."


I'm almost offended by your post!

Savington

iTrader: (31)

bumpety. I put one of these on my car and took 12-14db off over my normal open exhaust (85db at Laguna Seca). Spool suffered noticeably, though.

Braineack

iTrader: (62)

I'm surprised spool suffered...I saw no ill effects in the performance department on my setup...must be the bends.

EDIT: Looking a log from last week, still making 15psi at 3600RPM in 4th gear.

y8s

iTrader: (8)

got before and afters? I'm curious what I've condemned people to.

redfred18t

iTrader: (1)

what did you use for bends? that exhaust looks and sounds sweet

Joe Perez

iTrader: (8)

Dude, this is Braineack we're talking about. He just picked 'em up with his bare hands and bent 'em.

gospeed81

iTrader: (51)

The Columbia River bends.

Joe Perez

iTrader: (8)

On a more serious note- I don't see any shielding gas. Did you do that with flux-core wire? If so, it looks amazingly good. (If not, it still looks pretty decent.)

Braineack

iTrader: (62)

Argon.

Braineack

iTrader: (62)

nice one. ha!

Joe Perez

iTrader: (8)

Ok, I don't feel quite so inadequate now. I've only ever owned a flux-only rig, and my welds look like someone took a **** on the workpiece, and then had it plated over.

Sidebar: I need a new welder. Gotta figure out a way to run 220v into the garage. Damn apartment living...

Joe Perez

iTrader: (8)

Wait... pure argon, for mild steel?

Savington

iTrader: (31)

No and I probably never will since the car isn't street legal. This is going from no muffler whatsoever to the monster y8saflow. I noticed a huge difference in transient boost response, coming out of corners where I normally can just roll in and the boost comes up quickly, there was a fairly significant delay (maybe half a second).

miata2fast

iTrader: (2)

I am pretty sure that is the norm. It is what we use for all our welding.

Braineack

iTrader: (62)

click full size...




proof we used GAS:

Joe Perez

iTrader: (8)

Huh. I always thought that you were supposed to use of mix of argon and CO2 for steel.

miata2fast

iTrader: (2)

You know, I just went out there and looked, and it is 75% Argon/25% CO2 mix. I am not sure if it has always been that way or not. I suspect that if you asked for Argon, the mix is what you got.

chpmnsws6

iTrader: (12)

75/25 argon/Co2 mix is what we use, but pure argon is supposed to give a cleaner weld for some reason..... But we are cheap

wayne_curr

iTrader: (8)

I've tried migging with pure argon in a pinch and it doesn't work. The CO2 is there to bring some heat to the party. i couldn't get any kind of penetration with straight argon.