Ok heres some pictures I took tonight of my turbo setup that I'm doing, basically its going to be mostly all stock Turbo II parts bolted to my NA 6 port block

The block in the picture is not the one I'm using, it is only being used for mock up, turboing th emotor thats in the car now.

 

wow you got that thing shiny. musta been fun :P

 

jow did you get a tii manifold to fit the 6 port block? and did that eliminate the need for a spacer?

 

Port match TII manifold to N/A block, you can use the N/A LIM to block gasket as a guideline. It's been discussed before and there WAS a how-to on nopistons for converting the n/a block to TII manifolds/intercooler/turbo and how to basically turbo your n/a cheaply and effectively, but since nopistons crashed it's not there anymore. The center ports on the TII manifold line up with the n/a ones but the outer holes just have to be made larger on the TII LIM to fit the n/a block, no big deal.

No more spacer needed this way, in my opinion it's a much better route.

 

well damn everyone else on this forom had led me to beleive that a custom intake and exhaust manifold was needed to aviod hitting the frame or relocating the wastegate. So now i'll look for a tii at the junkyard tomorrow to get parts from since i was headed there anyway for some interior parts and s5 tails

 

Nope, you can do it like him and have no problems. The how-to on nopistons was really awesome, guy turbo'd his n/a for like 300 bucks or something crazy like that. TII front cover for oil, drilled into his housings for the coolant feed to go through the stock TII manifold, etc. Very interesting, too bad it's gone now.

 

Nice Setup You Got There

 

Hot.

 

bah!...when i think boost i think of only supercharged non turbo engines!...

by the way....great job!....

 

Why would you think only of supercharged non-turbo engines? Those are more rare than turbo'd n/a engines. What did you use to fill the TII intake with once you ported it out? Got any pics of it?

 

Exactly, I havn't done it yet on mine since i'm still waiting for the gaskets.

I will have some pictures up of the throttle body up soon

 

The draw back to this method (and reason I would still recommend the spacer on the exhaust, is that you loose the Aux port operation and end up with two other problems.

#1 The flow through the modified LIM into the side ports considerbly suffers (remember the post size and timing of the Turbo motor is considerably different and the non Turbo flows much better).

#2 Port timing is off for the Turbo intake manifold.

So, yes you can bolt on a Turbo setup like that, but you loose HP over what a spaced Turbo manifold and non turbo intake setup would do.

 

Yeah ture Icemark, I likes the looks of this setup instead of the NA manifold with the turbo about to smack the frame.

Heres a pic of my modified and cleaned up S4 TII throttle body.

 

More pictures

 

Icemark, you need to loose the 6 actuators anyway. They won't fit with the turbo in place. Well, I guess you could connect them remotely with bicycle cable...

 

I wanted to do a turbo myself but i dont want an intercooler so could i just use my stock n/a intake manifolds

 

Yes you can use your n/a intake manifolds if you fabricate a spacer for the exhaust manifold.

I wouldn't suggest not using an intercooler unless you are going to run very low boost.

 

You need an intercooler.

You can use an intercooler with the stock NA intake if you want.

 

If i do run a intercooler i will make sure it is small i dont like people knowing what i have untill its to late

 

Don't run a small intercooler. Find something at least as big as the stock TII unit, preferably larger.

 

I'm still n ot positive if I'm going to run the stock TII intercooler on mine, I want to do a v mount setup and depending on the cash when I got to install this if I'm going to do it right away or not.

I still got a few things left to buy and I'm not looking to install it till next feb.

 

Since the Nopistons write-up has disappeared, do you feel like writing your own? It'd be a great thing to throw in the archives.

Icemark: Roughly how much HP would you estimate this setup loses? I was planning on Turboing my N/A in the future, and this is the method I would have chosen. I'm not currently looking to make uber-power levels. I think 230 to the wheels would be a very nice number to hit. Anything over 200 would be nice.

 

I would estimate probably about a 15-20Hp loss over what the proper intake matched to the ports would be.

But that is a guess, just based on my understanding of the flow design and fluid dynamics. It is not an actual dyno number or anything that I can back up at this time with formal test data.

And my last comment on this design/setup: See in my book, I'd rip the motor apart and use Turbo front and rear end plates and port the center plate, before cutting up a manifold and trying to make a turbo intake manifold work on a non turbo motor.

But if I was forced to stick with not popping open the motor and using non turbo porting, then I sure as hell would make sure the aux ports were still working as well be it with a remote actuator (as Aaron suggested) or some other fabrication.

 

As people in the past that have turbo'd their n/a have said, the actuators aren't needed anymore. The turbo spools soon enough to make up for the low end loss, and besides I run with no actuators/sleeves and it's really not that big of a deal, I hardly noticed a difference from them being closed/always open in the low end.

 

You really think they aren't going to see that big metal snail hanging off the side of your engine?

-Joe