I'm guessing temperature, weather, sea level etc all play a role in these things. Kind of the same reason why cars in Australia and out here in Guam don't make the same amount of power as the cars in the US, even though we have the same exact set ups and tunes.

Let's not rule out the simple fact Dynos can give different readings from 2 shops next door to each other, yet alone 2 shops on the other side of the planet from each other.

Has anyone on the Air 2 Air done a Ti Impeller upgrade? I know a couple of you guys have done the Si upgrade...

For those of you that have done the impeller upgrade with Vortech did you recall the turn around time?

The only guy I know that has is Milkcow500 on his G37. He bought it from a guy on the Vette forums though as that is what they run.

That's right Topz...On recall him posting about that awhile ago. Haven't seen him post up here in awhile about his build...wondering how things are going for him on the build

Whoops, I thought I responded to this already, but I guess I never hit sent.

Here's the deal with the Ti trim blower: Vortech specifically makes it for a company that sells aftermarket SC kits for the C7 Corvette. You cannot have your unit upgraded/converted by Vortech, since it runs a larger volute and impeller.

Your only choices are to buy one straight out like I did, have superchargerrebuilds bore your unit and replace the impeller (Their 'Ti trim' upgrade), or do what Evan is doing and have 928 build your blower.

No updates on my build yet, since the car has been in the body shop for the past month +. When it's done I'll be doing my serp side pulleys and flex fuel dyno tune.

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Yep I thought the best route while still keeping the stock Vortech head unit, was to just send it to 928 and have them do the super vortech upgrade. All new bearings to support up to 72k rpm, their impeller, high performance seal on impeller shaft, HSS steel bearings, and they shim and adjust the impeller. Im planning on around 18 psi with this setup with my new build. Should put down some pretty good numbers for sure.

Don't spin it any faster than vorteck says, I tried spinning mine faster with their bearings and blew up the supercharger.


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Jwillis, no offense, I respect your efforts immensly, but I honestly think it was the shops fault ,that did that build, for the sc chewing itself apart. Stillenz84 has been 8k over the recommended limit for almost a year on the standard bearings. And we have seen him beating the piss out of his car much more than most.

Then again, maybe I'll be eating my words, but we won't know till someone tries again. Pioneer power!

There's so many factors that come into play once you open up the blower. I've seen the guys over on the mustang/corvette forums overspin and it's a hit or miss. Most of time, you'll see thing like the oil slinger get destroyed.

From what I've seen, it seems like it comes down to a few important factors: installation, oil level, and bearings.

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Vortech told me it's the design and the way it oils, they said that only works on units with oil lines.


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I did notice people that had blowers that share oil pretty much had nonexistent issues with overspinning. There's quite a few with the V3 overspinning ~10% with no problems though.

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He should be ok.....he's also getting all new bearings to support up to 72k rpm.

I'm not saying to wasn't the shops fault but the person I spoke to at vortech said that it doesn't work with the V3, I did the bearings also. I hope it works but I wouldn't trust it.


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FYI... I will be leaving for vacation starting tomorrow night and wont be back until March 2nd. I wont be checking PM's/emails. Basically will be putting my phone in the room's safe and leaving it there.

what to do what to do??????
 

i have a upgraded impellar (bought kit used so don't know what was done to supercharger) and air2air and 660 injectors on 93 octane. i have the 9psi pulley sitting on the shelf and according to topgunz i need to go ahead and install. Sebastian said to install and start to tune. I JUST DON'T WANT TO START TEARING UP ****!!!!

What exactly do u need to Install? The end tire kit...the Air 2 Air...or the 9lb pulley? If ur gonna tune u need to Install it all....each upgrade requires a retune..this will save u time, money amd headaches. If it's only the 9lb pulley that's an easy install. You don't have to tear anything apart....espcially if ur on the Air 2 Air upgrade.... as all u need to do is loosen up ur belt enough to swap out the pulleys. Should take u less than 15 mins

Just the 9pd pulley i have the 928 upgrade. Just keep hearing people say dont do upgrade and 9pd pulley. Do one or other. Then i see people doing it.

Don't take my word for it necessarily, but the people running both are likely on air to air setups already.

Or on borrowed time?

I have both but aren't running the 9# pulley until down the road. Most likely anyways

So I recall seeing some of the users on this kit making 500+ WHP with upgrades on E85....Does anyone have any numbers of what they're putting down on 91 pump gas? If not..... any estimations of where the numbers should fall?

I I will be hitting the dyno on the 11th I'll post my results. I have the air 2 air with upgraded impeller and on 91.
It's a Mustang dyno but will give us an idea what it can do.

Fix'd :icon17:

I do realize that the Mustang dyno's real lower than others. That's why they are called heart breaker and why I mentioned that it will be one.

I do realize that the Mustang dyno's read lower than others. That's why they are called heart breaker and why I mentioned that it will be one.

Are you putting the 9psi serp pulley on? What SC pulley?

The stock pulley I got with your setup you sold me. After I have my A7 Trans build I will go 9lb pulley and E85.
And Welcome back from Vacation Top.

What we're u putting down on the dyno bef9re the Air 2 Air UPGRADE (Full Stillen W2A Kit)?

I just had bolt on's never had it dyno ed before.

Oh....so u didn't dyno when u were Air 2 Water?

I did the Stillen kit and air to air all at the same time. I knew about the engineering defects of the Stillen kit and never considered it before TopgunZ came up with his air to air kit.

I purchased the kit about a 2 month ago. And finally got the chance to get it installed. The before and after is night and day. The car runs much smoother, especially in the low rpm. I do feel the car has more torque in the lower rpm.

The tune with stillen kit with only frozen boost exchanger made 345whp if I remember correctly.
The tune with this air to air kit made 368whp on a conservative tune for lap days. There is more power to be made, but a conservative tune gives piece of mind at the track.
Please note the dyno reads extremely low.

We did run into some issues with the y pipe which is all fixed now. Still trying to figure out where it went wrong with TopGunz. Will update once we figure it out.

Also, for anyone who wants to install fast intention crash bar, it fits!

I'm very happy with the results. And want to thank TopGunz for putting together the kit that makes stillen kit so much more desirable!

You probably had the same issue that I did, which TopGunz mentioned a bit earlier in this thread. Damn treadstone :mad:

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I think this is the first time someone left it all the same except just added a2a. However, now you can pulley it up and feel just as safe as with your lower boost pullies.

I think I will eventually do pulley and injector once I crave for more power haha.

Here quick videos from the dyno. I didn't get a chance to see my car on the dyno so the videos were taken by the shop
https://youtu.be/Dq66PuWxU04
https://youtu.be/2OjYeYtmwTo

just sent you a Pm regarding a deposit man :)

Car sounds nice on the pulls....Curious....what numbers did u put down for Torque and what kind of fuel and dyno?

dyno jet corrected numbers: 434whp, 343tq
Mustang dyno numbers: 359whp, 283tq

It was done on a Mustang dyno, on crappy Canadian 94

Im taking it that your crappy 94 is still better than our crappy 91...LOL

No E-85 or Race Fuel up there? Are you on UpRev or EcuTek?

These are still impressive numbers for being on the lowest psi setup possible.

Hey Topz...Would you happen to be able to order a coupler for my Bank 1 (Front Side) on the Y-Pipe. The Y-pipe was tight putting it on and I have experience having the coupler pop out during boost due to the coupler being slightly short due to the tight fit. Maybe having the coupler another 1.5 inches to 2 inches long would be perfect.....at least for my set up. Refer to my pic.

http://i77.photobucket.com/albums/j5...227_165554.jpg