• Got the Contributing Memberships stuff finally worked out and made up a thread as a sort of "How-To" to help people figure out how to participate. So if you need help figuring it out, here's the thread you need to take a look at -> http://www.corvetteflorida.com/forums/showthread.php?t=3581 Thank you, everyone! Rich Z.

STS twin turbos - status on 12/11/06

GLPJ said:
If you don't mind me asking, why would you do ball bearings? Have you had or anticipate having problems? I decided not to do the upgrade but you have my attention now, I could probably still make the change. Thanks for the info.
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From everything I have heard, the ball bearing style turbos are supposed to be capable of spooling up quicker. It's not all that big of a deal, but if I had the choice over one or the other, at a minimal price difference, I would have chosen the ball bearing style. But it's not enough of an issue for me to consider changing out the ones I am using right now.
 
GLPJ said:
Rich, I will ask Rick Squires about your wastegate when I talk to him monday, I have to call him to find out status on my car. I will post what he had to say about it.
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Thanks! I'm really curious to hear what he has to say.
 
One wastegate. Reason for only one from Rick Squires is that the exhaust pipes are joined by a crossover pipe or as in Rich's case an X-pipe. I too was concerned with this when we started, but the system has always functioned as designed. By the way Rich, The STS guys were here in the shop the other day and I had discussed an exhaust housing upgrade for your car to make it spool quicker. They told me that they would exchange housings. I could get the new ones hot coated and you could come in for a change. This is something that you need to do as your expense will be minimal as they are helping out on this one.
 
Anti Venom said:
One wastegate. Reason for only one from Rick Squires is that the exhaust pipes are joined by a crossover pipe or as in Rich's case an X-pipe. I too was concerned with this when we started, but the system has always functioned as designed. By the way Rich, The STS guys were here in the shop the other day and I had discussed an exhaust housing upgrade for your car to make it spool quicker. They told me that they would exchange housings. I could get the new ones hot coated and you could come in for a change. This is something that you need to do as your expense will be minimal as they are helping out on this one.
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Damn Greg, THANKS! What do I need to do to get that ball rolling? That is awesome news!

Wow, I am floored by this........
 
When they get back in from the PRI show, I will tell them to go ahead and send out the new housings. I will then get them coated and we can go from there. When I get everything in my hands, I will let you know and you can schedule a ride down here.
 
Hot damn! Thanks Greg. But you forgot to say "Merry Christmas, Rich!" :thumbsup:
 
Figured I would post some photos I took a while back of the STS stuff.

First is a pic of the turbos after the exhaust side starts rusting up on you....
rusted_turbos.jpg


Hopefully it won't be too long before those rusted guys are gone and the new ceramic coated replacements are on there.... :D

Next are a couple of photos showing the BBK airbridge and the connection to the intercooler...
airbridge01.jpg


airbridge02.jpg


The polished version of that BBK airbridge looks pretty sharp under the hood! :thumbsup:
 
Spent the afternoon at AntiVenom today as Greg put on the new exhaust housings on the turbos. They DEFINITELY look MUCH better being Jet Hot coated! No more rusted brown color. Haven't had the opportunity to really try them out yet, but I can even HEAR them spooling up sooner and ever at moderate RPMs and throttle, I can feel a real difference in engine response. I'll have to post the new dyno sheet when I get back home, but it peaked at 533 rwhp and about the same torque as before. The power is plenty good enough for me, as what I wanted was to have the curve hit a little sooner than the original turbos were allowing. Wastegate is still set at 6.5 lbs, so I didn't expect any real power gain to speak of. I haven't compared the dyno sheets, but I'm thinking that the additional power may be coming into play somewhere between 500 and 1000 rpm sooner than before. I'll know a little bit more when I can look at them side by side to do a good comparison.

But all other things being equal, the turbos now DO give a marked improvement and plain old "seat of the pants" response. :thumbsup: :thumbsup:

I did take a video of Greg putting the car on the dyno, so as soon as I get the new camcorder figured out on how to extract and edit the videos from it, I'll post it here.
 
Yeah man. I'm on my laptop this weekend and don't care much for the chicklet keys on the keyboard. Need to pick up a USB cordless mouse too, as the pad these things have for that function drive me crazy.

Getting ready to leave the motel soon and head on up to Sanford. Taking route 17 through Orlando.
 
I know what you mean Rich. One of the things I needed to do this weekend was to get my laptop hooked up to Comcast cable so that I can work from down here in Florida. Just got that taken care of this morning so I decided to hit the board before I started doing some work. I am having to find the damn backspace a hect of a lot more than I do on my desktop.

Hope everyone enjoys the museum today!

Rich
 
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