Also bare in mind that in addition to Garretts old style 5 bolt back housing T3/T4 turbo's, they have come out with their new Ballistic line of turbo's designed more for automotive applications as well as their GT series which many of have ball bearing option. But I agree that old technology Garrett blows Mitsu turbo's out of the water. Example: A T3/T4 comperablely sized to a TD06-20G turbo is going to be much more reliable long term.

 

You guys are using 4 bolt turbos right?

 

It depends on the kit and the turbo option. If we use a 5 bolt turbo it's a turbo from precision turbo. If not it's a 4 bolt ballistic. Also we can do the new GT series turbo's.

 

I have been talking to a local sped shop around here in Dallas, and they have told me that the BB turbo's are not worth the time or money. They have said that the spool-up difference is maybe 200 rpm and that the cost of a rebuild is astronomical. What are your thoughts on this? Worth it or not? Oh, and Zues, no ****, that graph does look pretty damn good, I would like to see the same from a 1000 rpm drop.

 

I agree with them. the spool is anywhere from 200-500rpm faster depending on the motor and trim. We offer this setup because people still want what they want and in certain specific applications it may be warranted.

 

...a good graph from a 1000 rpm drop would sell me on the specs... It's just going to be a matter of finding someone who has the housings/wheels to fit...

 

Where's the update on pesto360 car? What where the results of higher boost with aquamist?

 

David Buschur has been saying this for months. (And obviously some lesser none shops, like the one you referenced to know) Now that his predictions have been proven true in numerous instances, maybe people will take him serious when he says not to use BB Turbos.

 

I have been preaching the same thing about bb turbos. Wait you fail to mention is that they are also much more sensative to dirty.

I am also not very fond of the newer technology comp. wheels in the gt lines. They flow well and have awesome race gas performance, but they haven't been hitting the long ball on pump gas. I do love the sc61 though. That thing has some nits if you turn up the wick!

 

Ok I am starting to understand a few more things now, thanks for everyone info.

 

I am uncomprimizing when it comes to the turbo I want to run on the street. I think I know better than anyboody cause I have had so many turbos on my car. Here is what I have found.

Ball bearing turbos? I have run a bb 57trim and a reg 57trim. BB turbos do not spool faster. If you roll into it from third gear both turbos hit hard at 3900rpm. Where a bb turbo shines is in between shifts. The bb turbo has way faster transient responce. Is it worth it? For anything 50trim or bigger. YES. Are they unreliable. No. If you run a filter inline nothing but clean oil gets to the turbo and it lasts as long as any. I just opened my filter after about 10k miles, I was amazed at all the very small metal particles that I found inside. As far as I am concerned a filter is a must on any turbo. Are the new GT turbos better than the the stuff that has been around for decades? NO. Its just a couple of fan blades attatched to a shaft. I tested a 52lb gt bb turbo against my 57 trim. The 57trim kicked *** over the gt turbo. Andre (pump gas king of NJ) had the same results when he swapped in a 55lb gt turbo in for the 50trim green he had been running for years. He now runs another 50trimturbo.

Best turbo I have tried. 25g. Mitsubishi turbos rock. They are the bomb comparred to garret stuff. They do use small shaft and small bearings and thrust surface. This gives the turbo great responce but it suffers in the reliablity department comparred to the far more durable garret stuff. Use a filter and a good blow of valve and expect it to outlast the engine. A small blow of valve can kill the thrust surface in a hurry and turbo is toast.

Another note on turbo choice. If you are looking at dyno charts to see how fast the turbo is spooling remember this. The car was likely dynoed in 4th gear if it was on a 2wd dyno. This says nothing for the pefrormance in 1, 2, and 3. If the turbo spools at 4500 in 4th it is likey a dog in 1st and 2nd. If turbo is not hitting hard at 4000-4200 than it is a race turbo that works good on the street rather than a street turbo that works well at the track.

Hope some of you look real hard at some of the things I have said and make smart choices. that twin scroll16 is a hella of a turbo and is going to be hard to beat for a street car. Dave Burshur has already stressed this if you dont take it from me take it from him.

 

I've taken in what you have said... I'm willing to give up a little in street performance... I want a 400whp grocery getter that has decent spool... the DSM guys have been doing it for years... I just need something that bolts to the Evo... I've been told by a few vendors that what I want is just around the corner...

 

we havent been to they dyno yet...put a new ignition on the car...its also being shot for a magazine so we had to put some spirngs in it and get the OZ racing wheels on the car..hopefully we see the dyno this week...these wheels are awesome looking..Ill post pics

 

Yo 94AWDcoupe:

what do you mean by dog?

 

Yo 94AWDcoupe:

what do you mean by dog?
later man
omar