Turbo BS Thread

Effectively a GTX28R, I believe. Or an even quicker spooling BW EFR of the similar size.

 

I'd break even more stuff than I do now.

 

but if you moved to bama you would have saved enough from a lower cost of living to fix everything with no real financial strain

 

If I moved from a 9.6 to 10 compression on NA engine would I have to adjust anything, would there be any ill effect?

 

My issue is mostly time to work on it. So happy that the whole truck is working nicely right now.

 

I think I want to make my next turbo header based off this. 4-3-1. I just need to draw it up.

 

Probably need to always run a minimum of premium fuel to prevent knock.

 

I don’t think that’s an issue at 10, maybe 11+. I’m more concerned if it affects timing or something I’m overlooking

 

Only thing I can think is timing would only be retarded for knock. Other than that enjoy the extra power.

 

I don’t see how 4-3-1 is any different than 4-2-1 in a twin scroll when 1&4 and 2&3 are each combined

 

I didnt see any real difference either, but it did get me think about a louvre system to block off half of a twin scroll till a certain rpm since that is basically what the manifold is doing

 

Yeah, that’s basically what the variable Holsets, and I’m sure others, do with restricting the inlet diameter

 

It's just their version of a VGT without copying anyone. Probably a work around on a patent.

 

only if it actually doesn't suck. GM doesn't have a good track record with anything other than ls motors..

 

Started with this:



Then finished with this.

 

You think that much of a offset will work?

 

Only one way to find out. I will pressure test it when it is light out. If need be, I will add a gusset to the top portion. Doubt it though, as that rod is tough.

 

The picture above doesn't capture the bends in the steel rod. The one in my build thread does though.

 

Dropped the block and head off with the machine shop to be decked; said I can pick up later in the week, which is a much quicker turnaround than I anticipated.
Interesting tid-bit about the 2TR valves, OEM seems to be stainless and exhaust side anti-magnetic

 

How much donyou think you’ll need to play with valve clearances after that