Member gets time w/ Black C7 Corvette Stingray Prototype, Showing Dual Boost Gauges
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A site member recently got some hands on personal time with a black C7 Corvette Stingray prototype (#37). He has shared some of his photos with us :clap::high5:
Oh, and dual PSI boost gauges are shown in the dashboard gauge, pointing to potential forced induction soon? Attachment 485264 Attachment 485265 Attachment 485266 Attachment 485267 Attachment 485268 Attachment 485269 Attachment 485270 Attachment 485271 Attachment 485303 Attachment 485272 |
Black is beautiful... thanks for taking pics & posting! :thumb:
Wonder if he got some seat time as well? :popcorn: |
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Dual psi gauges in the LCD cluster?
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This C7 has a boost guage!!
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Corvette fans the world over are drooling on their keyboards right about now. :)
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Dual boost gauges?
Do they actually do anything? I'd imagine they just sit there on the cluster at zero. |
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What is the negative 12 on the boost gauge? 12inHG? No one says -12psi hahaha. Its called vacuum. Even so 12inHG is low for a healthy car idling. They must have just thrown some numbers on the dash for the heck of it and figured they will deal with it later. I really like the center console and and ****pit look to the drivers seat. :thumb: |
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Ive never seen a negative number on a boost gauge unless you are dealing with BAR. 15-20inHg is normal for idling in my experiences. I've never heard anyone talk about negative PSI, its always vacuum(inHg). Sorry for double posting on C7.com I figured it would get more traffic over there then here. |
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6.5inHG sounds awfully low. Even with not running things off of vacuum a healthy motor still creates it with the throttle closed. I think the numbers are just a placeholder for things to come. |
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I think you can make any boost gauge show -PSI if you connect the reference tube to something that reads both boost and vaccum. I'm using an AEM TruBoost, so that's pretty common. If you hook it up directly to the turbos then you only read boost. If you hook it up to the manifold it will read both boost and vaccum. We hooked mine up to the manifold because I installed a vacuum pump and it gave me an easy way to adjust the vaccum I was pulling without installing another gauge in my car. Once I got that dialed in I just left it like that. |
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I know you can get it to read vacuum. What im saying is that -12 is not a number you will see on a gauge reading just PSI. 12inHg maybe since its reading vacuum but not -12PSI. The "-" on your boost gauge is just there to show you that the gauge is reading vacuum now. So -15 on aem truboost gauge is saying you have 15inhg. The positive number is psi obviously. I have never delt with those directly but have been told thats how it functions. Since its just leds and does not actually say "PSI or inHg" on the gauge. If it really was reading -15psi that would be a very unhealthy engine with very little vacuum. Which brings me back to why the C7 gauge says PSI but yet have a negative number. Its probably just a placeholder though ya. |
It could also be a software thing for future. Why not use the same software for all models, even though there's no use for it in a NA car, a boost gauge could have a use in future vehicles.
Also what options did that car have? It looks like either a 2LT/3LT Z51 car with carbon fiber interior package. |
Woo supercharged or turbo motor coming??
Possibly Z06 and ZR1 both going forced induction? |
i hope the Z06 or ZR1 will be a revolution.
they should have DCT or at least Tapshift automatic in them. the low volume sell of Z06 or Zr1 now because the lack of DCT or Auto.. |
What were his impressions?
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Great pics. The boost gauge on the ZL1 is formatted the same way; reads vacuum in hg at idle and psi when in boost.
BTW - How does this site always get the cool pics first, hmmm? |
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Ya but what Im saying is that the one in the C7 does not read inHg. Its just PSI, which is not correct. Even if the -12 was supposed to stand for 12inHg thats pretty low vacuum. |
Good point. I didn't see the negative by the lower 12. Mine start at 30 in hg and goes to 15 psi for boost. Though I did set up a pid in my scan tool to log boost (only in psi) and it shows a negative boost number in psi at idle even though it's technically not negative boost.
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Ya I mean there is a formula to figure out what "negative" PSI would be in vacuum terms(inHg) but -12 is only like 5 or 6inHg. Its probably just there as a place holder for bigger things to come. Im just looking into it too much probably hahaha :smiling1: |
-12 in hg converts to -40 kPa which is definitely not correct. You're probably right, it's probably there for another model. Perhaps the rumored twin turbo big brother motor for the top of the line C7?
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OK, what do I need to do to have GM give me a prototype to test and drive??? Talk about hitting the lotto. I can test a car year round without any hint of snow or ice. Good pictures even if they are taken with a cell phone.
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It's a vacume gauge also. So it has a use on non boosted engines as well.
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I can't stop looking at these pictures.
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The passenger grab handle on the center console looks ridiculously chunky.
I don't think anyone's really meant to hold on using that thing. :lol: |
Agreed. But I still like it...
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That is one outstanding looking car !
That is exactly what I would buy....*maybe I'd get the chrome wheels instead of silver*...but other than that....that's perfect ! Love it ! |
GM said they used one software build for the gauge cluster for all preproduction cars. Some features will get taken out once saleable cars are built.
All this means is some form of forced induction will be making its way into a Corvette soon. |
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http://img.tapatalk.com/d/13/03/16/ujeputet.jpg "Product Description IPD's illuminated 52mm vacuum boost gauge functions well within the operating range of these models. Gauge reads from 30 inches of vacuum to 30PSI of boost. A great match to the factory R models produced from 2004-2007. This is the gauge only for those that want to custom mount their gauge. This kit includes boost tubing and connectors along with gauge harness pigtail for electrical hookup of gauge illumination." I never saw more than about 15 in vacuum though. This is a Turbo application. - Clayton. Official C5Fail4 hater. |
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wow thats beautiful!.. what a lucky guy
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