custom turbo setup

[lil_red_ex_neon]

ok, I am pretty sure I got this down, but before I do it, I thought I should get the ok from someone who has installed a turbo with the full kit.
ok, can you just bolt the turbo right up top the exaust manifold? and whats this about the downpipe? the regular exaust downpipe? cause that seems too far down the exaust to mount the turbo. but at the same time right off the manifold seems too far up, couldnt that damage the turbo. and the up-pipe? is that the intake tubing coming off the turbo?
if anyone could answer these Q's it would be great. liek I said, I am pretty sure I got it all down but now that it is about time, I am getting nervous and all of these Q's are coming up, so I figured I would just ask about it to be sure with these damn technical terms.

[sheetmagnet]

I hope tex will reply to this too so he can confirm what I write, but I am pretty sure that (for instance) the turbo on the SRT4 is a reverse-rotation mitsubishi and that the front of it is plumbed directly off of the exhaust manifold (confirmation, tex? lol).

Anyway that's an example of the placement... going off the end of the exhaust manifold is a relatively ideal spot to mount a turbo. It does create some heat, but that's what an intercooler is for on your intake. Do not go off the end of the down-pipe... especially the stock down-pipe... this is way too far away from your engine. You will get too much turbo lag (going up and coming down) -- it would be much harder to time the boost and blow-off. You would also get slightly less boost as well because of the lag and slower velocity of the exhaust gases... So mount the turbo between your exhaust manifold and the downpipe.

And yes, the "up-pipe," and I use that term loosely, would be part of the intake-side of the turbo that plumbs fresh air back to your intercooler, intake manifold, etc. Hope this helps.

[das2123]

Buy a book called "Maximum Boost" by Corky Bell. It would be the best and smartest $25 you spend if you are building your own turbo setup.

As far as the turbo bolting right up to your exhaust manifold, it depends on what turbo you are taking about. Not every turbo bolts up, in fact very few do. You may probably need some some type of adapter.

[TEXSRT4]

technically a hard pipe is a unit used after the primarys of the exhaust manifold come together, and then run a single pipe into the turbine housing. this single pipe is called an up pipe. subaru uses them, because they have a single turbo flat4 motor! on an inline 4 motor, just run the turbo on the manifold itself. it will allow for much more rapid spool with no downsides! besides its easier to plumb that way!

[das2123]

Originally Posted by TEXSRT4

it will allow for much more rapid spool with no downsides! besides its easier to plumb that way!

Two things you definitely want from your turbo

[lil_red_ex_neon]

thanx for the answers and tips