Maybe a mig welding class too? Looks like a lot of grinding time for a show truck.

 

The man stated it was just mock-up piping.

 

Taken from the original post

"So decided to build one side in mild steel to check the layout before I order stainless steel and merge collectors."

It appears that he is mocking up these before the final approach.

 

Are you spying on me?Hahaha

 

damn all in the same minute.

 

I don't let these guys bother me too much But you are correct, they are just mock ups.

I was just going to spot weld them, but have been having problems with the welder so welded them all the way trying to figure out what was going on with the welder. At first I thought it was the pinch roller, but finally determined the issue is the inner liner is causing the wire to bind. So will need to order another Tweco liner for it this week.

Any comments on what brand/model AC/DC HF Tig welder 180+ amps you prefer? Looking at picking up a Miller Syncrowave 200 for the final work (headers, aluminum, etc.)

 

One thing I did learn from doing the layout is that the front and rear cylinders need to be located on the outside of the header, I fabed them the other way. Mainly so that you can get the inner bolt installed. I have them layed out incorrectly for firing order as my cam is based on the old SBC firing order, so I need to re-lay them out slighty different when I build the real pair to allow access to the bolts, and to get the firing order correct in the collector.

Firing order detail: Not that it matters much on a turbo or on a non-merge collector, but every little bit helps I will use the drivers side as an example. The SBC (prior to the LS1) firing order is 1-8-4-3-6-5-7-2, in order to get the best scavange the collector should look as follows looking at it from the end:

5 7
3 1

OR

7 5
1 3

This way when 1 fires it assist 3, when 3 fires it assist 5, when 5 fires it assist 7, and when 7 fires it assist 1. If the pipes that are to scavange are diagonal, they do not assist as much in the scavange.

Now if you have swapped 4 & 7 on your cam, your firing order is 1-8-7-3-6-5-4-2, the the collector would be layed out differently, looking from the end again:

3 5
7 1

OR

5 3
1 7

Cheers,
Michael

 

Those are some sick G.D. motors on your link.

 

We have a Sync 180 here at school, its amazing, we welded up this with it:

 

Well that's one nice little hot rod ya have there, looks like it would be a lot of fun to drive

At first I was looking at the Lincoln Precision Tig 185, but I have always been told that Miller is a better machine. So I have been looking at the Sync 200, my local shop that I deal with has a cash deal on them for a little over $1800. Would love to have a Fronius Transtig 2200, but don't want to drop that kind of coin....