jason's education thread

[larrym]

It wasn't easy :p around the steering shaft
First one was a pic of my thumb
Second was of the header bolt
Third time was a charm.

[good2win22]

Thanks for the tip!  I welded up the crack yesterday and looking at this morning it appears that I missed a spot.  Going to look for some material to add a gusset today at work and weld it in this evening.

[motorhead]

Putting a "blanket" between the primaries serves both as a way to strengthen the welded area and seal future cracks... because let us be honest: it was the 80s and build quality sucked.

I am still considering buying a cheap set of the China headers and reworking them with v-bands.

[good2win22]

Putting a "blanket" between the primaries serves both as a way to strengthen the welded area and seal future cracks... because let us be honest: it was the 80s and build quality sucked.

I am still considering buying a cheap set of the China headers and reworking them with v-bands.

I've got a set of TA headers that I picked up second hand.  I could use those but I've been saving them for my upcoming engine build.  I'll post up some pics when I get finished welding it up.

[good2win22]

My gusset didn't go so well.  Got the metal too hot and burned through the header.  Going to put on the TA headers for now and work on the stock headers as time permits

[TexasT]

Just make a patch to go over the whole section and weld it on.

[good2win22]

Just make a patch to go over the whole section and weld it on.

That was my thoughts as well.  Want to be able to reach inside the header and clean up any weld through as well.  I've got a pretty decent pencil grinder.  Shouldn't be an issue

[TexasT]

I wouldn't worry about it. There is a huge restriction called the turbo wheel at the end of that pipe. A little weld isn't gonna be much compared to that.

[good2win22]

I am more worried about something coming loose and messing up a turbine wheel. 


Got the headers changed out. Have to say that was the easiest header swap that I've ever done. Didn't make little River to check the valve spring swap.  It'll have to wait til next friday

[good2win22]

Made some 3rd gear pulls yesterday afternoon...  Question, why would boost drop by 2 pounds after the header swap?  Smoke test completed with no leaks, same boost controller and actuator.  RJC boost controller is bottomed out.  Just got the actuator a few months ago and don't have another HD actuator to swap out.  Only other change is the valve springs.

[TexasT]

It flows better. Less restriction equals less pressure. 

[Steve Wood]

Long as you can adjust the boost to wherever you set it, it's not important...Di d the car pull better?

[good2win22]

It flows better. Less restriction equals less pressure.

Bernoulli's principle strikes again.  Still doesn't make sense as the boost controller would only see pressure and would keep the actuator closed until it saw that pressure.
 
Makes me wonder if an increase in the volume of air followed by the velocity gained of less restrictive exhaust would nullify the gains of the the less restrictive exhaust in our turbo application... .

[good2win22]

Long as you can adjust the boost to wherever you set it, it's not important...Di d the car pull better?

The boost controller is bottomed out so no more adjustment there.  I may shorten the actuator rod a full turn and see what happens.
 
Seat of the pants.... it felt better. No KR but would like to get the boost back up before pulling more fuel

[Steve Wood]

It flows better. Less restriction equals less pressure.

Bernoulli's principle strikes again.  Still doesn't make sense as the boost controller would only see pressure and would keep the actuator closed until it saw that pressure.
 
Makes me wonder if an increase in the volume of air followed by the velocity gained of less restrictive exhaust would nullify the gains of the the less restrictive exhaust in our turbo application... .

I agree with you