this is my issue


this is why


is it logical to cut the flange and mount it here




OR cut it at the collector and the plate, rotate the collector 90 degrees and turn the plate 90 degrees to its original location and re-weld?




advice? opinions? suggestions?

 

first you should pull the header wrap off that. it will make your manifold crack far quicker than without it. second, you should just throw the whole thing out because it is an ebay manifold and it will crack anyway.

don't take this the wrong way. i'd rather do something right the first time instead of trying to make stuff fit together that doesn't belong together. i've said it many times: cheap, fast, reliable. you can only pick two.

not the best solution, but the easiest fix would be to put a block off plate and weld a new wg flange where it will fit better.

 

this was my first thought with putting a plate on and welding a new spot! but some one thought it would be a bad idea. so i guess ill try that first. i dont have another 600 laying around for a manifold at the moment unfortunately.

 

What you are suggesting will be fine, but put as close to the collector flange as you can and I would angle it down a little bit too. You're going to have an interesting time routing your downpipe with that setup if you're not careful.

 

Do you really have plastic zip ties on there? If you weld the flange on top of the other one, do some port work on the inside where needed.

 

Those are just there till I get the metal ones. this has never been installed or ran so no worries

 

This picture was fooling my eyes for a minute, looked like it would have zero flow. S'ok now.

 

little update on the process




at this point i was a little unsure as to where to mount the dam thing but i took out el bigo turbo and mocked it up...and the left side it will be!!












im going to try and fill the gaps in between the spaces before i attempt to weld on the outside of the mating surfaces. do not want any type of overhang or lips disturbing the air flow.

more later

 

I hate to say it but that manifold is going to give you a lot of problems for sure.

Number one problem will be boost creep, the new wastegate hole is quite low on the collector and this will likely cause boost control issues.

Second, you are reusing the same piece of pipe that was already welded once. This may (or may not) cause cracking issues later on since you are basically heating an already unhappy piece of stainless a second time.

I would have capped off the old port and made a new wastegate port runner at the correct angle for the wastegate.

Not much you can do at this point. I honestly hope it works out for ya, at the very worst, it will have been a great learning experience.

Best of luck!

 

Well I really don't plan on having a shitty welding job done on this so i may be able to bypass the cracking issue. As far as the boost creep goes, wouldn't that be able to be controlled more easily due to the wg being closer to the pulse of the exhaust? If it does not work out for ne then ill just sell it to some one who can use it and buy another or custom make one

Then again, you are right about it being a learning experience.

 

Brace it as much as you can

 

The reason the low gate causes boost creep is that you have 3 runners basically shooting right into the turbo. Placing it higher favors dumping from all 4 cyls, where having it low like that favors one cyl in particular. I've seen it many times before. I had a guy with a B18 running a GT35R that still made 8 psi of boost with the wastegate hole wide open. He was trying to run 20 psi but it kept shooting way over 30 ...

Like I said, it may work out, so good luck!

 

Looking at the pic again, you have a pretty long collector, so you may be able to get away with that.

 

hopefully i can get away with it. its only about a 1/2 inch difference in location

 

But it's also on one runner as opposed to being between two. Either way, not much you can do now.