Nice David Can you post the torque curve of that last run?

 

mas informacion por favor.

 

Are you guys going to try the Ball bearing turbo next? Will it be the BR500 or BR580? Keep us updated please!

 

Found out a snag with the ballbearing turbos. From what I just learned there are going to be only two different ball bearing turbos that we can get, that will work for this car anyway. One is going to be comparable to our BR580 the other is going to be smaller than the BR440.

The next turbo we are testing is a non-ball bearing turbo that we are trying gain another 50-60 whp from. This is going to give us a very fast spooling 500 whp turbo.

David Buschur
www.buschurracing.com

 

will any of your tubo kits have an external wastegate as a option?

 

The external wastegate in the EVO makes for a real plumbing mess, just look at all the kits out there that have them. I don't want to offer it. We have had great luck using the internal gates on the cars all the way to 608 whp. There is NO advantage to the external wastegate other than controlling the boost. Most of the time the internal gate becomes to inefficient to control boost, in the case of the turbos we are running we are able to control it down to 18-20 psi without a problem. No need for the extra weight and plumbing mess of the external.

David Buschur
www.buschurracing.com

 

What about the External on the O2 housing? This is how I have my setup for my Eclipse and everything looks very clean and isn't a mess at all.

 

No room for it unless you do it like everyone else is going. There are many pictures on this forum of the other shops kits. I don't want to run the turbo/header/external gate as close to the radiator as every other shop is doing it. This is my personal preference. Tons of kits out there and tons of ways of doing things.

David Buschur
www.buschurracing.com

 

You said it, David!

The thing that amazes me about these cars is that there are so many different ways to go and options out there, that rarely do you see two cars set up the same, which is a stark contrast to my Audi days...

Keep the options coming, guys.

 

I read all 19 pgs and all I can say is Im sold on BR (especially since I can get the flashes done). I live in CA and so driving to BR is not exactly sensable. My Question is in Re: to the smaller turbo that will have a ball bearing section. Is it a dual ball bearing? How much sooner and quicker will spool up be vs the BR440 and stock (est.)?? and how much less HP/TQ will it make???

Thnx for the response

 

bump

 

I can't answer that as I haven't tested the turbo. We made 390/390 on race gas on the stock turbo. The BR440 made 429 on race gas with the stock head and 443 on the ported head. Spool up is darn near stock.

The ball bearing turbo is a true dual ballbearing. I am going to guess that it is going to make 25 less, at that point in my mind it isn't going to be worth the additional expense of a turbo kit.

Keep in mind guys that we are working on a kick *** stock turbo replacement. This turbo will appear to be 100% bone stock but SHOULD make another 40-50 whp. As much as I hate to see it this is going to make our lower HP turbo kits not needed. Good for you guys, not as good for us.

David Buschur
www.buschurracing.com

 

How much do you think this turbo is going to give up to the OE exhaust manifold? Do you have a better option in mind?

 

It was just pointed out that I made a mistake here. The 608 whp that I quoted above was NOT an internally gated turbo nor was it a BR580. Too many cars to remember. The BR580 made 580 whp on the internal gate. Sorry about the confusion.

The stock manifold on the car is quite good actually. It isn't going to give up anything to it. The BR580 bolts to a stock 2G DSM manifold which isn't nearly as nice as the EVO 8 manifold and we have gone over 580 whp with it, no nitrous.

David Buschur
www.buschurracing.com

 

When do you forsee this kit being avalible as a rough time estimate. This will be exactly what I am looking for!