I have a question about turbo bracing. Please read the entire post before replying. I don't know of many people I can ask as most people
don't do stuff like this. I've emailed a couple people that replied too quickly and it was obvious they didn't look at it or read what I was saying. *it's only tacked at this time and the retention hardware hasn't been added,I'm well aware of that*.

**Keep in mind the merge collectors are double slips**

We made this lower brace


but there wasn't really a good way to triangulate it so I started making this top
one,It's not finished but going to pick up the compressor on one of the
housing bolts,the pic is a bad angle,but it's right there,It's not at the flange like the picture suggests. I just need another hiem joint. This brace *IS* triangulated well braced anyway there's a bar that goes from the front brace straight down to the tranny,it's *NOT* just hanging off the valve cover OR welded to the flange!
(the wastegate isn't integrated yet but will be between the merge collector and the arc of the bends in the secondary tubes)




I realized that if I use both braces mounted to different bolts that the
compressor isn't going to be able to move in a rolling motion as I assume it
will when the headers expand and contract. I don't know if that will be
negated by the double slips or not.

My question is, Will it be acceptable to hang the turbo off of just the top
triangulated brace using a hiem joint to either a compressor bolt,or a flat
bracket that picks up two compressor bolts,so that way the turbo will be
supported,yet still be able to rotate a little bit as the header expands and
contracts? Or should we brace the turbo where it's not only supported,but perfectly still? I was looking at Bergenholtz motor yesterday and the turbo is stationary and has double slips.

(sorry for all the *'s but there's been too many people giving me redundant info and skipping what I need to know.)
Thanks in advance for your time,it's greatly appreciated.
Justin

 

Justin you looks to be on the right track! The top once which will allow the turbo to "roll" looks to be the best option.

On the bergenholtz's car the turbo is mounted solid but there is room for expansion through the double slips. There car also runs for very short periods of time.

Stick the the one that doesn't hold solid and you should be A-OK

 

Thanks a lot for your time,it's much appreciated.

 

thats sick!

 

I made this one out of .5" .035 wall 4130 tubing and you can stand on the end of it and it won't bend. If you triangulate it and allow the turbo to hang from it, that's the best way to go. That's how formula 1 did it in the late 80's!

 

Thanks Tony, Your actually the reason I finally registered here. Glad to see someone so involved with big stuff reply to the little guys all the time. It's funny how relatively new the big money is in the import scene,but how fast so many people adapted to the big attitudes. 6 years ago a couple guys in a garage could get together and build a competitive car but now it's next to impossible, It's great to see some big people being cool still. It's much appreciated
Justin

btw any other pics that show the triangulated part of that brace? In the other thread it wans't on there,this one I can only see the top 2 pieces.

 

nevermind,I think I see where it goes to the bolt on the header flange.

 

I think your top mount brace looks good as long as you use heim joints like you said. BTW- hood intake

 

bro your exhaust mani is just sick..mad props..i own a 1.8t nice stuff man! and the top mount looks best

 

No problem, I like helping people out. I don't have any more pics of that brace, as it was a new addition when we had to downsize the turbo because of rule changes. You're right about the other tube though, goes right under the top left one down to the header flange.

By the way, looks like a cool project you've got there, I like the manifolds.

 

These limited posting rules are rediculous!

Tony,
While I have your attention on that intake manifold,we didn't put the TB on yet,my thoughts are that we should aim it from the bottom to point the air at the ceiling of the plenum as opposed to at the ports so it should flow more evenly. Is that the case? Here's the inside of the plenum,this pic was taken before we switched over to a bigger round one. The runners were machined from ross machine racing.

 

geeez that mani is SICK! WOW good luck man

 

Yes, looks nice.

I would suggest that in the future, you try to use 45's rather than 90's...

1) they look better
2) two 45's spaced apart from each other, will flow better than one 90 will. Don't ask me why, ask an engineer...they can explain it.

 

I think you're on the right track with the intake manifold. You don't want to blow it directly at the runners, unless it's blowing at them all evenly, which it isn't likely to do. Something like this...

 

Thanks Tony,what car are those pics from? Haven't seen that yet.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote"> BTW- hood intake </TD></TR></TABLE>

Is that a suggestion,or didja know?

 

Nice love the side exit wastegate wooott more pics

 

I wasn't trying to get this so OT,Probably just best to post a link to my gallery. The car has a lot of stuff going on right now,trying to get on track and get it done this summer. Bailhatch just caught me by surprise when he mentioned the hood intake.
Here's the link to other pics. Thanks for all the compliments.
http://forum.vwsport.com/pics/...er=24&=

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 16vt &raquo;</TD></TR><TR><TD CLASS="quote">

Is that a suggestion,or didja know?

</TD></TR></TABLE>

i knew