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      11-09-2012, 11:52 AM   #1
Andrew@ActiveAutowerke
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Active Autowerke | Potential Supercharger Line Up Testing *Unofficial*

M3 Post members,

Over the last couple of weeks we have been testing the Rotrex 92 trim on our stock engine shop car. So far our findings have been very promising. The biggest thing we have noticed is a large increase in efficiency, the blower makes the same if not more power running lower boost pressures with a marked difference in flow to redline. As of right now nothing is set in stone and things may change with additional long term testing.

Here are the numbers running the rotrex on our Dct shop car : Stock engine- no cats- Dct-93 oct



Mustang Dyno-

Level 3- 539 Whp 356 wtq (9.5 Psi + Meth)
Level 2- 495 Whp 325 wtq (8 psi No Meth)
Level 1- 431 Whp 283 wtq (6 Psi No Meth) 20'' Wheels

Dyno jet using conversion- Typical Dynojet Comparison 10%

Level 3- 593 whp 392 wtq
Level 2- 545 whp 358 wtq
Level 1- 474 whp 311 wtq


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Last edited by Andrew@ActiveAutowerke; 11-16-2012 at 03:27 PM.
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      11-09-2012, 12:51 PM   #2
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I am excited for these new developments, are the rpms raised back to 8300 now?
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      11-09-2012, 01:04 PM   #3
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I must be missing something here, but since when is 9.5psi on a stock motor/compression safe?
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      11-09-2012, 01:07 PM   #4
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Quote:
Originally Posted by akh23456 View Post
I am excited for these new developments, are the rpms raised back to 8300 now?


In these tests they are.
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      11-09-2012, 01:16 PM   #5
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Nice. I anxiously await my car coming out of hibernation in April.
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      11-09-2012, 01:28 PM   #6
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Quote:
Originally Posted by Andrew@ActiveAutowerke View Post
.....the blower makes the same if not more power running lower boost pressures with a marked difference in flow to redline.

Level 3- 539 Whp 356 wtq (9.5 Psi + Meth)
Andrew, given the first part of the statement, how much boost is the Level 3 kit, for sale right now, *currently* running?
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      11-09-2012, 01:32 PM   #7
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Quote:
Originally Posted by whats77inaname View Post
Andrew, given the first part of the statement, how much boost is the Level 3 kit for sale now *currently* running?
In these tests the level 3 is running 9-9.5 psi. None of these options are currently for sale as we are still in the testing stage right now.

This thread was to show the potential of the Rotrex blower with our system.
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      11-09-2012, 03:18 PM   #8
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Great numbers, guys!

There's a reason I run the Rotrex blower on my car!
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      11-09-2012, 03:44 PM   #9
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Quote:
Originally Posted by RC@PSI View Post
Great numbers, guys!

There's a reason I run the Rotrex blower on my car!
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      11-09-2012, 03:58 PM   #10
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Quote:
Originally Posted by erm324 View Post
I must be missing something here, but since when is 9.5psi on a stock motor/compression safe?
Curious about this too?
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      11-09-2012, 04:46 PM   #11
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Quote:
Originally Posted by chris s View Post
Curious about this too?
The power output and the heat it generates is what makes an unsafe environment for the engine not the amount of boost you are running.This logic of measuring boost between blowers does not make sense and is not accurate.

Below shows a blower making less boost and more power.

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      11-09-2012, 05:04 PM   #12
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I don't care what company you are but if you are running 9.5 boost on a stock motor, meth or no meth. That shit is not holding up and for sure there are blown motors all over the place that we don't know about. (if running 9.5 psi, I think you would have to run VP110 to keep that thing safe.. if that.)
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      11-09-2012, 05:09 PM   #13
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What can ess push at 9.5 psi?
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      11-09-2012, 05:12 PM   #14
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Quote:
Originally Posted by tightie View Post
I don't care what company you are but if you are running 9.5 boost on a stock motor, meth or no meth. That shit is not holding up and for sure there are blown motors all over the place that we don't know about. (if running 9.5 psi, I think you would have to run VP110 to keep that thing safe.. if that.)
Thank you for your input These kits are not for sale and will under go long term testing before we determine what boost they are shipped with.

I will state again comparing boost does not make sense.
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      11-09-2012, 07:25 PM   #15
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Quote:
Originally Posted by tightie View Post
I don't care what company you are but if you are running 9.5 boost on a stock motor, meth or no meth. That shit is not holding up and for sure there are blown motors all over the place that we don't know about. (if running 9.5 psi, I think you would have to run VP110 to keep that thing safe.. if that.)
+1, josh cant agree with you more

Quote:
Originally Posted by Andrew@ActiveAutowerke View Post
Thank you for your input These kits are not for sale and will under go long term testing before we determine what boost they are shipped with.

I will state again comparing boost does not make sense.
I like this - 2 years after you release your supercharger for this platform your now testing better blowers to improve your kit. Wonder how all those poor hks AA kit owners feel after seeing this and realizing that their original 15k purchase came with a shit blower

Quote:
Originally Posted by Chriskm3 View Post
What can ess push at 9.5 psi?
ESS (as well as probably every other company) doesn't push 9.5psi because it is too much boost for pump gas to run safely on this motor.

Last edited by erm324; 11-09-2012 at 07:32 PM.
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      11-09-2012, 07:27 PM   #16
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Great stuff guys, looking forward to it.
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      11-09-2012, 07:59 PM   #17
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The comments some of you make without knowing what actually goes into building a car like this is just incredible. The boost level comments are irrelevant. Boost is not necessarily the factor in the reliability equation. The heat caused by the extra power is the most important aspect to take in to consideration.

Basing opinions on a simple number is over simplifying the complexity that goes in to creating a supercharger kit and the tuning that goes with it. Boost is not boost. There are so many other variables that are more important here that are completely ignored. We are trying to help the community and educate at the same time. Our intention is not to give our previous customers the short end of the stick, but we also like progress.

We are trying our best to provide a quality product to all of you and meeting your power goals. We will not release anything we deem completely unsafe or irresponsible. Our goal is not to build the biggest and the baddest, but to make something that can be enjoyed everyday without headache.
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      11-09-2012, 08:08 PM   #18
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Monster power!!

Nice to see that you guys are looking into other avenues in improving your kits. There is nothing ever wrong with updates, just shows the there is always potential for growth.

I can't wait to see more data and results as you guys confirm your plans! Hopefully you decide to raise the rev limit too

Keep it up guys!
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      11-09-2012, 08:11 PM   #19
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Numbers look solid!
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      11-09-2012, 09:02 PM   #20
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So what led you to Rotrex. From what I have heard, they aren't the most reliable of units.
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      11-10-2012, 11:48 AM   #21
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Quote:
Originally Posted by LarThaL View Post
So what led you to Rotrex. From what I have heard, they aren't the most reliable of units.

HKS 8555 is rated at 918 CFM
Rotrex C38 91/92 is rated at 1205 CFM
Vortech V3si is rated to 1150 CFM

Don't quote me 100% on those conversions, both manufacturers use some odd-ball flow rates instead of something standard like kg/hr, CFM, or lbs/hr.

The rotrex 92 offers a larger housing, think S-cover in the turbo world. The wheel is not setup any differently but the cover breathes better.

Now the comparison with the Vortech. There are alot of other factors not taken in to account here. These are peak flow numbers but do nothing to reveal how the blower acts in anything other than 100% speed. The wheel geometry can change the dynamics through the blower rev range quite a bit. It is noticeable that the Rotrex/HKS units offer more flow at lower revs than the Vortech, which tends to be a bit peaky. Blowers can be under/over spun etc.
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      11-10-2012, 12:20 PM   #22
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Peak CFM does not show a compressor map. On these motors, we know the Vortech outflows the Rotrex, though the Rotrex appears to be able to flow enough for any stock compression motor running on pump gas.
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