So I am piecing together a dual pass endplate/heat exchanger/option b tank. I can't figure out the tubing for the option be can anyone help here? Thanks!

https://www.cobaltss.net/forums/pict...3&pictureid=83

 

go to zzp and they have a diagram of how dual pass goes with dual h/e.

 

Do they have an option B tank also? That is where I am confused.

 

the ? on your drawing is an 'in' from an overflow on one or both of your heat exchangers. Your system will self-bleed this way. I think CED has a good diagram on how to set this up. At least they used to, let me see if I can find it for you.

Here it is: http://www.crateenginedepot.com/store/pdfs/sidekit.pdf

Read the section under option B - about the air bleed fitting. Make sure you put in the .040 orifice mentioned in the doc.

 

I have a cobra heat exchanger. There is no overflow on it is there? If not what do I do with the ? line.

 

Well then just run it to your stock heat exchanger just as described in that document. All it is meant to do is bleed the air from the system. You should notice a slow flow of coolant flowing into your opt. B tank once it's bled.

 

Anyone else care to chime in on the diagram from the 1st post? Does it look right?

 

There is no "out" on the option B... there is just 1 hole...

the nipple on the top is for over flow.. and should connect to the top (or bottom, pretty sure top) of the stock heat exchanger.

 

So basically From the "T" after the dual pass endplate it goes to the tank and the tank slowly overflows into the heat exchanger?

If my bleed orifice is in my stock heat exchanger can I still run my cobra heat exchanger or do I need to tap into the cobra to bleed to that h/e also?

 

that first diagram looks correct. but I get confused sometimes because people will make the two outer laminovas the in ones and the center ones out compared to the diagram you have there where the coolant goes in the middle then out the outer two... dunno what is better

 

That tee is the only line going to the option B... the bleed line is very small... and only needs to go to the stock h/e...

 

Ok So the TEE goes to the pump in and also to the surge tank... got that part, now if I have a cobra heat exchanger in there do I need the bleed line to go to both the stock heat exchanger and the cobra heat exchanger or will it work fine with only going stock heat exchanger.

Thanks for the help guys!

 

Only to stock h/e

 

So does THIS look right...

 

no. You have the out and in mixed up on the opt. B tank. Swap em and it looks good.

 

There is no in / out on the option B ...

There is only one big hole, and one small hole...

The big hole goes to the T.

The small hole goes to the bleed line on Heat exchanger.

The end.

 

SORRY I think I got it now...

CLICK HERE

 

You had it right before i think.. i was trying to explain it to sput..

Good job

 

Ok well looking at the latest imagine in my last post how the hell does coolant get back up the the surge tank? does coolant from the overflow on the stock heat exchanger fill it? or does coolant just circulate back and forth in the single 3/4 hose going from the T to the surge tank?

 

Can we get confirmation on this? I'm doing my dual pass + option b & H/E this weekend and I like the look of schamsy's diagrams.

 

Yes I would also like more feedback so I can fine tune this drawing.

 

last one looks good to me. thats the way to maximize cooling

 

Good if anyone thinks I should add notes to the diagram anywhere let me know and I will keep updating it. I think this will really help people understand Option B/Dual Pass/Extra H/E.

 

I tried to tell you... There is just one in/out for the option B... It is an overflow tank...

 

depends on which tank you use.
some people that do the stu mod have one going in and out.