Turbo Focus build #2

[sutyak]

I have the vac block (pics later) and now need vac/boost line. Any recommendations? I believe 6mm (.25in) is what I need.

[phillysrt4]

IIRC the vac/boost lines in my SRT were 6mm. You're running a similar turbo as far as flow (2871R vs a TD04R-"16G" stock, TD05R-15GK2 for S3) so I think you would be okay with that.

[phillysrt4]

As an aside, I'm really excited to see how this turbo performs on your car. My prediction is close to off-idle spoolup (my guess is 2200RPM) with nice power all the way through 6k. You're gonna have a really great compromise between stoplight-to-stoplight racing and having to wait until 2k before redline for your turbo to spool.

[sutyak]

IIRC the vac/boost lines in my SRT were 6mm. You're running a similar turbo as far as flow (2871R vs a TD04R-"16G" stock, TD05R-15GK2 for S3) so I think you would be okay with that.

Any particular brand van line you like?
The turbo should flow up to or past 7K rpm, going by other dyno charts I've seen.

[phillysrt4]

I don't have a brand pref. as the stockers that came with the SRT were adequate for all of my tinkering around.

My predictions were all off the cuff. I haven't looked at the 2871 map in a while (since I wrote my turbo article in the tech section). I also forgot that you're running 2 litres not 2.4 like the SRT.

[Martin0660]

If you are re-doing things and want to make them last, I really recomend good silicone hose. There are cheaper sources out there, but I like Treadstones stuff (and buy most of my coupler / clamps from them)

http://www.treadstoneperformance.com...ne+Vacuum+Hose

[PaxtonShelby]

Philly...that sig of yours is fantastic!!

[mr4teth]

Philly...that sig of yours is fantastic!!

+1

[sutyak]

If you are re-doing things and want to make them last, I really recomend good silicone hose. There are cheaper sources out there, but I like Treadstones stuff (and buy most of my coupler / clamps from them)

http://www.treadstoneperformance.com...ne+Vacuum+Hose

Thanks Bob. I ended up buying from here right before you replied.
http://www.siliconeintakes.com/produ...1e5704ee6d9293

I had some 1/4 (6mm) ID fuel hose and determined I actually need 4mm.
I agree, nice sig Philly.

[phillysrt4]

Thanks for the sig comments!

On topic: Treadstone also has great pricing. they really are a win/win situation.

[sutyak]

I'm heavily considering mounting my boost controller in the car, in a console I've literally never used.
The distance of hose to it would be somewhere around 4-6 feet. Is this too far? I know my boost gauge line is further than that and it certainly seems instantaneous in its readings.
It would be far more convenient to be able to adjust the knobs in the car.
Thoughts?

[phillysrt4]

If you saw the plumbing for the vac lines in the neon, you wouldn't worry about 6 feet :)

[sutyak]

If you saw the plumbing for the vac lines in the neon, you wouldn't worry about 6 feet :)

Thanks man!

[sutyak]

I went ahead and mounted the boost controller. I'm still waiting on the silicone hose so nothing is hooked up yet.


While looking for a good place to drill a hole in the firewall for the vacuum line I found a small miracle: a factory-plugged hole right where I wanted one!
It's behind the glove box near where the A/C lines come through. I twisted a screw through to see where it popped out.


See screw in the center of the photo:


I also wrapped the turbo to help the underhood temp. I'll wrap the downpipe later. I hate to because I love the gloss black.

[PaxtonShelby]

When your Focus was being born at the factory, there is no way it had any idea that it would be shown so much love. Keep up the good work!

[phillysrt4]

Its almost as if ford was going to run 6' of hose too :)

[sutyak]

Now THIS is more like it! :D Boost controller is now hooked up. I'm only running the stage 1 of the 2-stage boost controller until I drop in a built motor. Basically I didn't bother wiring up the switch yet that opens the second bleed-off valve.
I installed a 6-port vacuum block even though I only hooked up the boost controller tonight. I wanted to make sure I had enough 4mm silicone hose to route the boost controller before re-routing the BOV and boost gauge. Eventually the BOV, meth injection, boost gauge and boost controller will be routed off the same vac block.
The boost is now set around 9psi (vs. 6-ish psi previously). Just moving the boost source from the compressor housing to the vac block bumped it to ~8psi. A couple clockwise clicks of the boost controller set it to 9psi.
Tomorrow I'll do some datalogging to dial in the AF and timing more carefully. AF looked good tonight but I also didn't really run it hard. I just wanted to check peak boost.

Vac block (bought from Amazon)


Boost controller T. This contains a spring and ball to decrease spool time, but it also causes a momentary 1psi boost spike. So far I consider it a fair tradeoff.


The port behind the glovebox that Ford so kindly put there for me


4mm silicone hose routed to boost controller

[Martin0660]

Really sweet Mark! Glad it's all coming together.

[sutyak]

Really sweet Mark! Glad it's all coming together.

Thanks Bob!
You've been a huge help to me over the past few years. I appreciate all the insight you have provided.

[phillysrt4]

looks like you're not too far off from hitting a dyno now :) I cant wait to see that "instant on" torque :)