ive heard the o2 dumps and IMO they dont sound as nice, so better to do what u like then live with something you dont

 

post up some numbers it when yuou can, it would be intersting to see what happens

 

going to dyno soon.. will put up the before and after graphs

 

Yes, you answered it. If you decreased the WG area (upstream the gate on scroll side) then you managed to make up for adverse flow caused by the internal WG.

OT question for the crafty welder:
Would you be able to weld a dump to my stock O2 housing and block the outlet into stream and at the same time make it fit? Basically a Stock O2 housing dump modification that still mounts to block so no stress is placed on head-manifold.

You could sell them on a core+charge basis

 

hmmm seems very possible but i just did this as a hobby for my spring break i will be back up at school tomorrow with no means of welding for a while... but im sure it wouldnt be that hard

 

nice piece evokid! I just wonder how much boost it will solid! I would guess around 35 to 40 psi. But then there comes the flow problem that everyone and there brother likes to point out!! Nice job and nice RandD too!!

 

thank you but not sure what the max it will hold is... i will only be running 25lbs so no need to worry it hols that perfect.. and yeah i no the flow thing but oo well it works great and i might loss some power but maybe not we'll see soon

 

I want to do an external wastegate also but I think im going to use the o2 housing like c6c6ch3evo wants to do.

Go with a EPM o2 dump cut the dump off and weld the wastegate right the o2 housing and your all set just fit the dump tube back on.

Other wise you would need to go with a header and weld two seperate wastegates to each runner for it to work correctly. That and you would want to close off the wastegate runners in the hotside because its going to cause turbulence when it bounces off that welded wastegate flapper.

 

yeah its a lot of work to od it how i did it but looks awesome... but i thought about your way also actaully someone on here did it kinda your way... it was revomoto and he just welded a pipe over the factoery wg outlet and put a flagne on it and mounted the wg there, then just made his own pipe to connect the turbo to the downpipe... but your way is by far the easiest and shoudl work good

 

very nice man for 19 year old i give you 2 thums up!

Keep up the good work.

 

haha thank you!!!

 

you now should think of making a o2 housing that is just for exhaust and connect right to a dp!

Looks like you have the skill to do something like that.

and how come you did do twin waste gate since the turbo is twin scroll?

 

ive thoguht about making them but im in school so dont have much time... and i didnt run tow wastegates because i didnt think i needed to, its possible its possble with one on a twin scroll just gotta keep it all seperate which i didnt do so i prob lost a lil power but next time i pull it allapart im gonna change out the Y pipe so it keeps everythig seperate... and two wastegates is big bucksssss that i didnt have haha

 

i thought about this a while ago but didnt do it because of the twin scroll. just did an 02 dump and gained 21wheel hp lol

good luck to you man

good job

 

Your 19years old? You look my age (alot older) in the picture.

Time to checkout revomoto's work, thanks for the lead.