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Vortech Supercharger!

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Old 02-05-2007, 12:36 PM   #1
996r916sps
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Default Vortech Supercharger!

Hi,

Alternative Auto is installingmy Vortech kit, as we speak, andshould be installed and tuned by this Wednesday. The car with a different pulley should make somewhere around 12psi. I'm not using the intercooler, continuing on with methanol injection for cooling. My goal is 320rwhp, but we shall see. I will post the results on Thursday or Friday.

I will also be adding the following: Steeda braided steel brake lines and Comp Eng adjustable rear shocks. I also ordered a cold air kit to be modified to work with the Vortech kit. I want to feed cold air into the blower, not consume underhood air. I hope to have it installed in the next few weeks or so.

Before going to the track this spring, I will be investing in a new driveshaft to be on the safe side. My track goal for 2007 is 12.90's in the 1/4 mile. I drive my car everyday snow,sun,rain,etc. so I need it reliable.

I will report back soon!
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Old 02-05-2007, 03:12 PM   #2
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Default RE: Vortech Supercharger!

dude.... for maximum reliability i highly reccomend you get an intercooler setup.
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Old 02-05-2007, 03:21 PM   #3
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Default RE: Vortech Supercharger!

I Def. agree ^ Its what im running and i always feel safe with it.
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Old 02-05-2007, 03:25 PM   #4
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Default RE: Vortech Supercharger!

yea, meth is great, but you are running a fairly high amount of boost and if something were to go wrong with the meth you could have a big problem on your hands, plus you could likely see more power with the intercooler. If it were me, i wouldn't really get on it too hard until i had a proper intercooler setup.
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Old 02-05-2007, 09:27 PM   #5
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Default RE: Vortech Supercharger!

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ORIGINAL: 8cd03gro

yea, meth is great, but you are running a fairly high amount of boost and if something were to go wrong with the meth you could have a big problem on your hands, plus you could likely see more power with the intercooler. If it were me, i wouldn't really get on it too hard until i had a proper intercooler setup.
He'll be just fine... trust me... Lidio knows exactly what's he's doing! You can build a lot of safety into the meth setup... Lido has been running a non-intercooled Vortech with meth for almost 2 years in his GT... his GT automatic that goes 10.9 on 20 inch street tires!!! LOL!

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Old 02-05-2007, 09:51 PM   #6
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Default RE: Vortech Supercharger!

Quote:
ORIGINAL: 996r916sps

Hi,

Alternative Auto is installingmy Vortech kit, as we speak, andshould be installed and tuned by this Wednesday. The car with a different pulley should make somewhere around 12psi. I'm not using the intercooler, continuing on with methanol injection for cooling. My goal is 320rwhp, but we shall see. I will post the results on Thursday or Friday.

I will also be adding the following: Steeda braided steel brake lines and Comp Eng adjustable rear shocks. I also ordered a cold air kit to be modified to work with the Vortech kit. I want to feed cold air into the blower, not consume underhood air. I hope to have it installed in the next few weeks or so.

Before going to the track this spring, I will be investing in a new driveshaft to be on the safe side. My track goal for 2007 is 12.90's in the 1/4 mile. I drive my car everyday snow,sun,rain,etc. so I need it reliable.

I will report back soon!
Very cool! I'm thinking if you get some good track tires you should be in the 12's.... What are you doing for the exhaust? I found that the cats were very restrictive... however without them the car really sound pretty bad... (i went back to the stock muffler for the winter! LOL)

I'm actually going ot have Lidio stick my 12 PSI pulley on in a couple of weeks... Not so much for the top end PSI but would like the boost to come on a bit earlier... LOL!



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Old 02-06-2007, 04:46 AM   #7
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Default RE: Vortech Supercharger!

Quote:
ORIGINAL: scrming

Quote:
ORIGINAL: 996r916sps

Hi,

Alternative Auto is installingmy Vortech kit, as we speak, andshould be installed and tuned by this Wednesday. The car with a different pulley should make somewhere around 12psi. I'm not using the intercooler, continuing on with methanol injection for cooling. My goal is 320rwhp, but we shall see. I will post the results on Thursday or Friday.

I will also be adding the following: Steeda braided steel brake lines and Comp Eng adjustable rear shocks. I also ordered a cold air kit to be modified to work with the Vortech kit. I want to feed cold air into the blower, not consume underhood air. I hope to have it installed in the next few weeks or so.

Before going to the track this spring, I will be investing in a new driveshaft to be on the safe side. My track goal for 2007 is 12.90's in the 1/4 mile. I drive my car everyday snow,sun,rain,etc. so I need it reliable.

I will report back soon!
Very cool! I'm thinking if you get some good track tires you should be in the 12's.... What are you doing for the exhaust? I found that the cats were very restrictive... however without them the car really sound pretty bad... (i went back to the stock muffler for the winter! LOL)

I'm actually going ot have Lidio stick my 12 PSI pulley on in a couple of weeks... Not so much for the top end PSI but would like the boost to come on a bit earlier... LOL!



why not get a boost controller then? bleed off that boost after 10ish psi to keep it safe, but build it faster.
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Old 02-06-2007, 07:11 AM   #8
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Default RE: Vortech Supercharger!

We'll just set the shift points a tad bit lower... accomplishes basically the same thing...
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Old 02-06-2007, 11:59 AM   #9
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Default RE: Vortech Supercharger!

Thanks for the input.

This following information is only for the people whom wish to believe it. The Vortech intercooler is already known to be restrictive on the 4.6L GT. If anyone questions 12psi with methanol, check out the files on www.alternativeauto.com. I don't plan to have earth shattering dyno numbers, like 400rwhp. I won't know how much boost it will have until it's on the dyno tomorrow. An intercooled Vortech H.O kit that is rated at 10psi, actually makes 10.7psi at 6000rpm. Even the best intercoolers have a 1psi pressure drop, but the Vortech has been known to have almost a 2psi pressure drop. I ordered the H.O. pulley for my non-intercooled kit, so it will most likely make between 11-13psi. The reson for this is no pressure loss in a intercooler.

One other important this to note is, how often are you at 6000rpm? Most of my street driving is from 2500-4500rpm. Having a larger pulley will give you more boost where you usually drive. Don't get me wrong, you must have it tuned correctly for any rpm. But, most people are not running 6000rpm at every light.

Now, for the people who don't believe or understand. Methanol is my intercooler, so I'm not running a straight non-intercooled setup. Some people choose air/air, water/air, etc. I have just chosen this as my form of intercooling, my preference. The methanol controller can monitor many parameters. Mine will be setup to dump boost depending on intake temperatures, so there is no risk of a problem. The Vortech intercooled kit doesn't have a provision to do this, so what happens if your intake temp's rise over 140 degrees?

Anyway, all I can say is: wait and see. Maybe I see some of you at the track this spring/summer, and we will let our E.T.'s speak for themselves. Most of you should follow "Scrming", he knows the good and bad.

Good Luck to All!
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Old 02-06-2007, 12:29 PM   #10
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Default RE: Vortech Supercharger!

Quote:
ORIGINAL: 996r916sps

Thanks for the input.

This following information is only for the people whom wish to believe it. The Vortech intercooler is already known to be restrictive on the 4.6L GT. If anyone questions 12psi with methanol, check out the files on www.alternativeauto.com. I don't plan to have earth shattering dyno numbers, like 400rwhp. I won't know how much boost it will have until it's on the dyno tomorrow. An intercooled Vortech H.O kit that is rated at 10psi, actually makes 10.7psi at 6000rpm. Even the best intercoolers have a 1psi pressure drop, but the Vortech has been known to have almost a 2psi pressure drop. I ordered the H.O. pulley for my non-intercooled kit, so it will most likely make between 11-13psi. The reson for this is no pressure loss in a intercooler.

One other important this to note is, how often are you at 6000rpm? Most of my street driving is from 2500-4500rpm. Having a larger pulley will give you more boost where you usually drive. Don't get me wrong, you must have it tuned correctly for any rpm. But, most people are not running 6000rpm at every light.

Now, for the people who don't believe or understand. Methanol is my intercooler, so I'm not running a straight non-intercooled setup. Some people choose air/air, water/air, etc. I have just chosen this as my form of intercooling, my preference. The methanol controller can monitor many parameters. Mine will be setup to dump boost depending on intake temperatures, so there is no risk of a problem. The Vortech intercooled kit doesn't have a provision to do this, so what happens if your intake temp's rise over 140 degrees?

Anyway, all I can say is: wait and see. Maybe I see some of you at the track this spring/summer, and we will let our E.T.'s speak for themselves. Most of you should follow "Scrming", he knows the good and bad.

Good Luck to All!
Sound good... couple of comments though...

Last time I was at Lidio's we actually measured the "boost" for the first time...unfortunately we could not maintain a tach signal so the graph is in MPH... The RED run was NOT above 6000 RPM (might have been more like 5800), bu it shows that I hit 10PSI... so I really don't think there is 2 PSI drop... i'm thinking less than one...

Click the image to open in full size.

You say "larger pully will give you more..."... you mean SMALLER.. I'm going from the 3.25 HO pulley to the 2.87 for exactly the reason you mention... See if we can get the boost to come on a little early so the Mistress can really dig out of the CORNERS!!! LOL!

Now, i know the meth will do an amazing job dropping the temps... but the Vortech water/air setup is actually pretty good... do you remember that heat wave last summer... my temps were staying pretty reasonable... I was having some issues but we solved it by moving the IAT from the stock location (before the supercharger!) to after the aftercooler (right before the TB). This gave us an accurate intake temp and we tuned for it... So while I don't dump boost when the temps climb to high, we do pull timing...

Looking forward to seeing your results!
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Old 02-06-2007, 03:10 PM   #11
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Default RE: Vortech Supercharger!

Let me explain how it was explained to me ..........

I looked at 2 different graphs from V6 automatics that Alternative Auto had on file, and they showed almost identical at 10.7psi at 6000rpm. The pressure drop of the intercooler is already compensated by Vortech. If you were to leave your 10psi pulley on the blower, but remove the intercooler you would see a high boost pressure (less restriction). I am only able to speculate, from my discussions with Lidio. The best intercooler you can buy is a 0.5psi unit for $1400, so I doubt the Vortech has less than 1psi pressure drop. The old rule of thumb, back in the day, was 0.5psi loss per 90 degree bend in the system. The Vortech intercooler inside is basically a U-shape which by this rule would be 1psi, plus the 90 degree elbow into the throttle body which equals a total of 1.5psi loss. I have spoken with people whom have run non-intercooled Vortech's and added the Vortech cooler that have specified 2+psi loss.

Yes, you are correct. I think the pulley is 2.95, but will have to check on that. I remember talking with you at Ubly last year and saw the temp sensor moved to the intercooler. The methanol is good for 60-100 degree temperture drops, depending on application. Normal operating temperature of the blower is around 170 degrees, at the boost levels we are talking about. You must also factor in blower inlet temp (underhood air) and underhood temps themselves. Blower operating temps even in summer heat should never be over 200 degrees. The methanol minimal gain would be intake temps of 140 degrees.They measure by temperature in the actual intake mainfold.

Boost in our application, is actually recirculated into the inlet pipe of the blower - not dumped to atmosphere like turbos. When inlet temps exceed 130-140 degrees, timing is pulled and boost can be recirulated if required (waste gate).

I will be calling soon to find out the progress. When you go there the next time, Lidio can explain the system and setup better than me. I'm just the user! I have also come up with a way to lower our blower inlet temperatures, which I will be discussing with Lidio soon.

Thanks!
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Old 02-06-2007, 05:55 PM   #12
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Default Vortech Supercharger - Final results

Hey,

The final tune is complete. The car settled into 10.5psi, less boost than expected (I'm eating my words from the earlier post, I received bad information). The air/fuel was kept a conservative 11:1. The dyno numbers were as follows: 328rwhp/310rwtq.

These numbers are close to what I wanted, so job complete. I will revisit a pulley change to 12psi and a custom cold air kit, come warmer weather. I would like to see 340-350rwhp/350rwtq, which should be achieveable with a little more boost.

All I have left is to install my Fang front chin spoiler, and have fun for 2007!

Hope this helps!
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Old 02-06-2007, 07:08 PM   #13
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Default RE: Vortech Supercharger - Final results

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ORIGINAL: 996r916sps

Hey,

The final tune is complete. The car settled into 10.5psi, less boost than expected (I'm eating my words from the earlier post, I received bad information). The air/fuel was kept a conservative 11:1. The dyno numbers were as follows: 328rwhp/310rwtq.

These numbers are close to what I wanted, so job complete. I will revisit a pulley change to 12psi and a custom cold air kit, come warmer weather. I would like to see 340-350rwhp/350rwtq, which should be achieveable with a little more boost.

All I have left is to install my Fang front chin spoiler, and have fun for 2007!

Hope this helps!
Very cool!!! Can't wait to see that thing run!!!

BTW... I really like my MRT hood... it's amazing how much cooler it keeps the actual supercharger... normally after driving the car the supercharger itself would be way to hot to touch... but with the hood opening blowing air right on the SC it is actually cool enough to touch!!! And of course the other side blows right on my aftercooler... LOL!

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Old 02-06-2007, 09:40 PM   #14
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Default RE: Vortech Supercharger - Final results

Very strong numbers, congrats.
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Old 02-07-2007, 07:19 AM   #15
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Default RE: Vortech Supercharger - Final results

how much boost can these engines handle?
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Old 02-07-2007, 02:15 PM   #16
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Default Revised - Vortech Supercharger Installed

Hey,

I picked up my car from Alternative Auto this morning, and have had about 1-2hours to drive it before going to work. Let's first give everyone the hard numbers: 328rwhp/310rwtq. The car drives real nice, you don't notice the Vortech until about 3500rpm and things get crazy by 4500rpm. My car only makes 10.5psi at 6000rpm. Later this spring/summer we may play with timing and 1-2psi more boost. Definitley worth the money, nobody should be disapointed.

Watch the webiste www.alternativeauto.com, as there will a writeup on the install soon!

Thanks!
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Old 02-07-2007, 02:27 PM   #17
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Default RE: Revised - Vortech Supercharger Installed

Nice! A taller gear will get you to boost a lot faster, are you running the stock gears? Did the car break loose at all or was it a conservative drive back?
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Old 02-07-2007, 02:27 PM
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