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Modded VTGs - Who is Experiencing Great Results

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Old Sep 25, 2010 | 03:34 PM
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Modded VTGs - How to Get the Most Out of a 997TT Without Changing the Transmission
Hi Guys,


What are the main modifications done to the stock VTGs to get the best results?

I know of:
1- bigger billet compressor wheel
2- clip turbine
3- extrude housing
4- Anything Else?

I am trying to establish know how much can be squeezed out of the following setup on Pump Gas without crazy boost and with the stock tranny.

I am looking to do the following:
- Protomotive Modded VTGs
- 5" Intercooler
- Protomotive 2.75" X-Pipe Catless Exhaust
- Protomotive Tune
- Intake - BMC Panel Replacement Filter
- TCU Upgrade
- Boost Recirculatoin Valves

Who all have similar mods and what numbers are you doing?

Please list:
- mods
- whp
- wtq
- 1/4 mile
- 60 - 130
- 200 to 300

I know there are some great cars out there with Modded VTGs like Milou's and 997John's!

Come on guys post your cars and info
 
Last edited by farris; Sep 25, 2010 at 03:37 PM.
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Old Sep 25, 2010 | 04:14 PM
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verified modded vtg's results from 6speed 60-130 list

6.55 -Acicchelli / 997TT AWD TIP <---- Quickest tip car w/SPI750kit on racegas
6.69 -Shotcaller / 997TT AWD / 1-shift <---Quickest 6speed w/Proto750kit on 93 octane
6.75 -997John / 997TT AWD TIP It has old Proto 750hpkit
6.94 -TTdude / 997TT AWD / 0-shifts old Proto 750kit
6.99 -Eclou / 997TT AWD / 1-shift one of the 1st modded vtg's w/AWE750 kit

Milou and many other members can chime in also
 
Last edited by Shotcaller; Sep 25, 2010 at 04:17 PM.
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Old Sep 25, 2010 | 10:33 PM
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Originally Posted by farris
Hi Guys,


What are the main modifications done to the stock VTGs to get the best results?

I know of:
1- bigger billet compressor wheel
2- clip turbine
3- extrude housing
4- Anything Else?

I am trying to establish know how much can be squeezed out of the following setup on Pump Gas without crazy boost and with the stock tranny.

I am looking to do the following:
- Protomotive Modded VTGs
- 5" Intercooler
- Protomotive 2.75" X-Pipe Catless Exhaust
- Protomotive Tune
- Intake - BMC Panel Replacement Filter
- TCU Upgrade
- Boost Recirculatoin Valves

Who all have similar mods and what numbers are you doing?

Please list:
- mods
- whp
- wtq
- 1/4 mile
- 60 - 130
- 200 to 300

I know there are some great cars out there with Modded VTGs like Milou's and 997John's!

Come on guys post your cars and info
well, i am actually in the middle of almost exactly the same mods as you mentioned except im getting champion ICs and not doing BRVs. (Im getting new plugs and MAF removal, but those may be included with your tune)
 
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Old Sep 26, 2010 | 04:03 AM
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Show us your numbers this sound interesting
And best of luck of course
 
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Old Sep 26, 2010 | 04:25 AM
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farris,

What can kind fuel you will use ?

If you have low octane, you won't get good results from modded VTG's.
 
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Old Sep 26, 2010 | 04:32 AM
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Originally Posted by Shotcaller
verified modded vtg's results from 6speed 60-130 list

6.55 -Acicchelli / 997TT AWD TIP <---- Quickest tip car w/SPI750kit on racegas
6.69 -Shotcaller / 997TT AWD / 1-shift <---Quickest 6speed w/Proto750kit on 93 octane
6.75 -997John / 997TT AWD TIP It has old Proto 750hpkit
6.94 -TTdude / 997TT AWD / 0-shifts old Proto 750kit
6.99 -Eclou / 997TT AWD / 1-shift one of the 1st modded vtg's w/AWE750 kit

Milou and many other members can chime in also
So what is the difference bewtween the old Proto750kit and the new one?

What all goes into modding VTGs now adays apart from:
1- bigger billet compressor wheel
2- clip turbine
3- extrude housing
 
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Old Sep 26, 2010 | 05:17 AM
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Originally Posted by WhiteKnight
farris,

What can kind fuel you will use ?

If you have low octane, you won't get good results from modded VTG's.
In London I only ever see around 93 Octane. Shell offer their V-Power fuel, but I think that is around 93 Octane as well (not sure).

On the shell website it says "Shell V-Power is a high octane fuel (99 RON) designed to help maximize the performance of many modern engines with adaptive spark timing capacity."

http://www.shell.co.uk/home/content/...pkg/tech_spec/


I don't know what 99 RON is.?
 
Last edited by farris; Sep 26, 2010 at 05:21 AM.
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Old Sep 26, 2010 | 05:50 AM
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Super Unleaded....98-99 RON
 
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Old Sep 26, 2010 | 05:51 AM
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94 Octane there abouts
 
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Old Sep 26, 2010 | 07:04 AM
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I thought V-Power was around 93 Octane.

Can good results be had with 93 Octane (99 RON)?
 
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Old Sep 26, 2010 | 07:15 PM
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Originally Posted by Shotcaller
verified modded vtg's results from 6speed 60-130 list

6.55 -Acicchelli / 997TT AWD TIP <---- Quickest tip car w/SPI750kit on racegas
6.69 -Shotcaller / 997TT AWD / 1-shift <---Quickest 6speed w/Proto750kit on 93 octane
6.75 -997John / 997TT AWD TIP It has old Proto 750hpkit
6.94 -TTdude / 997TT AWD / 0-shifts old Proto 750kit
6.99 -Eclou / 997TT AWD / 1-shift one of the 1st modded vtg's w/AWE750 kit

Milou and many other members can chime in also
Great info!! Thanks for posting!!

So with modded VTGs you can expect 6.5-7s with some supporting mods?

OT I realize but, Do you have any data on the SPI 800 package?
 
Last edited by MBailey; Sep 26, 2010 at 07:18 PM.
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Old Sep 26, 2010 | 08:11 PM
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Our P800 package does not use modified VTG turbochargers. Our dealer TTR in Russia is running our R750 VTG package with a best time of 10.1x.

P800 is close to the 9's as well, same with the R911 on a tiptronic. We will have some numbers shortly.

The P700/R750 has won the Moscow Unlim 1/4 mile and mile event 3 times, the P800 got it's first win a few weeks ago.
 
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Old Sep 26, 2010 | 10:30 PM
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Originally Posted by WhiteKnight
farris,

What can kind fuel you will use ?

If you have low octane, you won't get good results from modded VTG's.
Hey Emre

We ran verified 5's from 100-200 on 93 octane on PE750!!
 
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Old Sep 27, 2010 | 12:22 AM
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Originally Posted by Shotcaller
Hey Emre

We ran verified 5's from 100-200 on 93 octane on PE750!!

I have tested my car with 91 octane (equals to ~95 octane Euro fuel), it really changes things.

Off the shelf 93 octane tunes won't work with that octane level, ECU retards timing too much.

997tt loves high octane, thanks to its 9.4:1 compression engine
 
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Old Sep 27, 2010 | 12:27 AM
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Originally Posted by MBailey
Great info!! So with modded VTGs you can expect 6.5-7s with some supporting mods?
Yeah, but that would require shifting...
60 -130 mph (96.5-209.2 kph): 5.85 - MBailey / RWD / 0-shifts (stock internals)
 
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