Here's how the tag turned out:

 

Looks good Tom.

 

Very nice! I like everything you have done, it'll be an attention getter at shows for sure.

 

Thanks!

The car got a People's Choice award at the last car show I was at. Tons of 2005+ Mustangs and only 3 awards given in that class... guess the Turbo was definitely an attention getter! Huge show and I didn't see even 1 other turbo there.

 

Congrats Tom . The turbo sure does make it stand out. I don't think I've seen one at a show out here either.

 

Thanks!

Luckily, they still have a bad reputation, so most people will go with superchargers!

 

why did they have a bad rep?

 

Heat issues, mostly. But not any more. You used to need a "turbo timer" to either keep an oil pump pumping oil through the turbo, or to keep the engine running (I'm not sure which). Now you don't need that any more.

 

on top of that, alot of older turbo systems had turbo lag. You wouldn't feel the power right when you stomped on the throttle, there would be a delay

I'm pretty sure most modern systems don't have that problem anymore. But as always prejudices of the past outlive their welcome

 

That is true!

I have some lag, but it's a pretty big turbo (76mm). Boost levels stay up there in between shifts, though.

It's a perfect compromise - 22 MPG if I want to drive it that way, or tons of power if I want or need it.

 

Yeah I would imagine it would take a larger turbo more time to spool up, but I'm sure you can attest to the fact that with a modern turbo setup even you, with you 76mm, don't have too much lag.

After all, who can complain when they're getting 22mpg with a 475hp motor! I wouldn't mind "compromising" like that at all

 

Oh, it's not bad at all. I just wanted to say that some lag still does exist (as does heat). But, as you say, both are no where near as bad as they used to be. Unfortunately, I never have driven an older type turbo set-up to experience what a lot of lag feels like... I'm sure I can imagine, though.

I actually helped the lag by installing a boost controller. It holds pressure on top of the wastegate spring to prevent it from starting to open earlier than it's preset rating of 6psi. Now the boost controller holds it shut until whatever I set it at (10 psi in the chart below).

Obviously, with the spring opening earlier on, it was harder and harder to build boost the higher the RPMs got and the more the spring opened.

Now, boost comes in pretty steady and the boost controller removes pressure from the top of the spring to let it level off:

 

Huh, I never knew anything about boost controllers. And If you're barely feeling any lag at all AFTER the controller install, there must be almost nil in the first place

Sweet deal!

And I have to say it, even though I know you've heard it before from many a man, that is a WHOLE LOTTA POWER

 

I never realized how much torque you were putting out. Those numbers look awsome

 

Thanks!

 

Update:

I got rid of the boost controller and changed the spring in the wastegate. Now at WOT, the boost gauge ramps up quick!

I also had a muffler welded on the dump pipe coming out of the WG. Now instead of raw exhaust sound coming out of there when the WG opens, it's nice and muffled.



Going on 7 months with the Turbo installed and about 7000 miles without any problems! And that's with 560 HP / 590 TQ at the flywheel on stock internals and with a stock fuel pump.

 

Good to hear Tom!

Did you ever get a chance to post some videos?

 

can you run reg gas with a turbo or is it 92/93octain only??

 

any one??

 

Now that I bought a new camera, I'm going to get a sticky pod and take some good videos!