\ VF Engineering: 475hp 911s /
#76
09-14-2012 | 11:45 AM
Registered User
Joined: Nov 2007
Posts: 462
From: Dallas
Rep Power: 62
Hi Folks,
This is possibly my last post on this subject and forum. (Moving over to the 997 Turbo forum. I sold my 997 C4S VF-Engineering supercharged Car and bought a 997 Turbo S)
I had a VF-Engineering supercharger on my 06 997 C4S since 2007. (Just sold) It accumulated around 15,000 miles since install. During that time I had zero discrepancies or issues with the kit. It simply does what VF-E advertises.
Wanting a little more umph than came stock it was the only alternative at the time for any real performance boost. It does transform the car. The extra performance is significant and in my opinion worth the cost of admission. Realize however, that if you go down this path your Porsche warranty is shot and if/when you go to resale your potential buyers list is significantly lower.
Does it add additional stress to the engine components and transmission?
No question, it does. However I believe Porsche has over build both and this kit stays with in those limits. There are many operating this system with no problems and that is testimony as to the kit design and operating limits.
One caveat. It is critical that the install is done properly!!! I cannot over emphasize this point. The problems that others have had are almost always the result of an improper installation.
Performance: My car was charted in the 425 HP range on an all-wheel drive dyno.
Before you purchase try to get a ride in one and soul search what exactly you are looking for. This kit will transform your car. You will be able to hang or slowly pull 996 Turbo’s, and E-90 series M3’s. The acceleration is linear however so you will not get the explosive torque that many of the other turbo’s get around 1900-3000 RPM. You car would essentially be a sleeper that when awakened would be an eye-opener to those that could otherwise easily trounce you.
For me the kit was a worthwhile purchase. I really enjoyed the increase in performance, especially on a cold day. It was a great intermediate stop to where I eventually wanted to end up,,,, a tuned 997 Turbo S.
So good luck, do your research, contact those that have or have had the kit and get all your questions asked. Try to get a ride in one so you know what to expect.
Walt
This is possibly my last post on this subject and forum. (Moving over to the 997 Turbo forum. I sold my 997 C4S VF-Engineering supercharged Car and bought a 997 Turbo S)
I had a VF-Engineering supercharger on my 06 997 C4S since 2007. (Just sold) It accumulated around 15,000 miles since install. During that time I had zero discrepancies or issues with the kit. It simply does what VF-E advertises.
Wanting a little more umph than came stock it was the only alternative at the time for any real performance boost. It does transform the car. The extra performance is significant and in my opinion worth the cost of admission. Realize however, that if you go down this path your Porsche warranty is shot and if/when you go to resale your potential buyers list is significantly lower.
Does it add additional stress to the engine components and transmission?
No question, it does. However I believe Porsche has over build both and this kit stays with in those limits. There are many operating this system with no problems and that is testimony as to the kit design and operating limits.
One caveat. It is critical that the install is done properly!!! I cannot over emphasize this point. The problems that others have had are almost always the result of an improper installation.
Performance: My car was charted in the 425 HP range on an all-wheel drive dyno.
Before you purchase try to get a ride in one and soul search what exactly you are looking for. This kit will transform your car. You will be able to hang or slowly pull 996 Turbo’s, and E-90 series M3’s. The acceleration is linear however so you will not get the explosive torque that many of the other turbo’s get around 1900-3000 RPM. You car would essentially be a sleeper that when awakened would be an eye-opener to those that could otherwise easily trounce you.
For me the kit was a worthwhile purchase. I really enjoyed the increase in performance, especially on a cold day. It was a great intermediate stop to where I eventually wanted to end up,,,, a tuned 997 Turbo S.
So good luck, do your research, contact those that have or have had the kit and get all your questions asked. Try to get a ride in one so you know what to expect.
Walt
#77
09-14-2012 | 04:59 PM
Registered User
Joined: Aug 2007
Posts: 1,364
From: Hawaii
Rep Power: 115
Agreed with what Walt said. It's a great kit, and you will be able to hang with the stock 996 Turbo, even with the X-50 version. But if you think you can hang with the 997 Turbo, that would be a little optimistic, unless you swap pulleys and do some tuning. Regardless, the kit is well made and definitely takes your 997 to the next level.
Congrats on your Turbo S purchase, Walt!
Congrats on your Turbo S purchase, Walt!
#78
09-15-2012 | 04:18 AM
Registered User
Joined: Aug 2012
Posts: 129
From: Georgia
Rep Power: 18
808 on the next C&C can I get a ride in your VF to see what the fuss is all about.
Agreed with what Walt said. It's a great kit, and you will be able to hang with the stock 996 Turbo, even with the X-50 version. But if you think you can hang with the 997 Turbo, that would be a little optimistic, unless you swap pulleys and do some tuning. Regardless, the kit is well made and definitely takes your 997 to the next level.
Congrats on your Turbo S purchase, Walt!
Congrats on your Turbo S purchase, Walt!
#81
09-16-2012 | 01:09 AM
Registered User
Joined: Aug 2007
Posts: 1,364
From: Hawaii
Rep Power: 115
Sure, if I can make it there. Remember though, the VF Kit does not behave like a typical turbo acceleration. It's more of a strong progressive pull that continues to redline w/o letting off 
. Heat soak is a problem, however 
.
. Heat soak is a problem, however .
#82
09-16-2012 | 03:33 AM
Registered User
Joined: Aug 2012
Posts: 129
From: Georgia
Rep Power: 18
From what I have been reading it, SC kicks in mid range unless its twin screw SC, and that's what makes me hesitant to pull a trigger for SC kit. I'm not sure at what RPM range turbo kicks in. I would like to get something that would cover from bottom to the top.
#83
09-16-2012 | 03:00 PM
Registered User
Joined: Aug 2007
Posts: 1,364
From: Hawaii
Rep Power: 115
If you are looking for lower end TQ, then a roots S/C would be good. VF-E is a centrifugal S/C and makes max HP at redline. The Power kicks in @ ~ 2800 rpm and pulls strongly to redline.
#84
09-17-2012 | 11:50 AM
Thread Starter
|
Former Vendor
Joined: Apr 2012
Posts: 376
From: Anaheim, CA
Rep Power: 0
Thanks for the first-hand review and congrats on your 997 Turbo!
Correct. 1.5-2.0psi is felt as low as 2000rpm and peak boost is acheived close to redline. The dynos are on the OP.
It's like an increasing wave pushing your seat from behind, something that can only be experienced in the hot seat.
Hi Folks,
This is possibly my last post on this subject and forum. (Moving over to the 997 Turbo forum. I sold my 997 C4S VF-Engineering supercharged Car and bought a 997 Turbo S)
I had a VF-Engineering supercharger on my 06 997 C4S since 2007. (Just sold) It accumulated around 15,000 miles since install. During that time I had zero discrepancies or issues with the kit. It simply does what VF-E advertises.
Wanting a little more umph than came stock it was the only alternative at the time for any real performance boost. It does transform the car. The extra performance is significant and in my opinion worth the cost of admission. Realize however, that if you go down this path your Porsche warranty is shot and if/when you go to resale your potential buyers list is significantly lower.
Does it add additional stress to the engine components and transmission?
No question, it does. However I believe Porsche has over build both and this kit stays with in those limits. There are many operating this system with no problems and that is testimony as to the kit design and operating limits.
One caveat. It is critical that the install is done properly!!! I cannot over emphasize this point. The problems that others have had are almost always the result of an improper installation.
Performance: My car was charted in the 425 HP range on an all-wheel drive dyno.
Before you purchase try to get a ride in one and soul search what exactly you are looking for. This kit will transform your car. You will be able to hang or slowly pull 996 Turbo’s, and E-90 series M3’s. The acceleration is linear however so you will not get the explosive torque that many of the other turbo’s get around 1900-3000 RPM. You car would essentially be a sleeper that when awakened would be an eye-opener to those that could otherwise easily trounce you.
For me the kit was a worthwhile purchase. I really enjoyed the increase in performance, especially on a cold day. It was a great intermediate stop to where I eventually wanted to end up,,,, a tuned 997 Turbo S.
So good luck, do your research, contact those that have or have had the kit and get all your questions asked. Try to get a ride in one so you know what to expect.
Walt
This is possibly my last post on this subject and forum. (Moving over to the 997 Turbo forum. I sold my 997 C4S VF-Engineering supercharged Car and bought a 997 Turbo S)
I had a VF-Engineering supercharger on my 06 997 C4S since 2007. (Just sold) It accumulated around 15,000 miles since install. During that time I had zero discrepancies or issues with the kit. It simply does what VF-E advertises.
Wanting a little more umph than came stock it was the only alternative at the time for any real performance boost. It does transform the car. The extra performance is significant and in my opinion worth the cost of admission. Realize however, that if you go down this path your Porsche warranty is shot and if/when you go to resale your potential buyers list is significantly lower.
Does it add additional stress to the engine components and transmission?
No question, it does. However I believe Porsche has over build both and this kit stays with in those limits. There are many operating this system with no problems and that is testimony as to the kit design and operating limits.
One caveat. It is critical that the install is done properly!!! I cannot over emphasize this point. The problems that others have had are almost always the result of an improper installation.
Performance: My car was charted in the 425 HP range on an all-wheel drive dyno.
Before you purchase try to get a ride in one and soul search what exactly you are looking for. This kit will transform your car. You will be able to hang or slowly pull 996 Turbo’s, and E-90 series M3’s. The acceleration is linear however so you will not get the explosive torque that many of the other turbo’s get around 1900-3000 RPM. You car would essentially be a sleeper that when awakened would be an eye-opener to those that could otherwise easily trounce you.
For me the kit was a worthwhile purchase. I really enjoyed the increase in performance, especially on a cold day. It was a great intermediate stop to where I eventually wanted to end up,,,, a tuned 997 Turbo S.
So good luck, do your research, contact those that have or have had the kit and get all your questions asked. Try to get a ride in one so you know what to expect.
Walt
Correct. 1.5-2.0psi is felt as low as 2000rpm and peak boost is acheived close to redline. The dynos are on the OP.
It's like an increasing wave pushing your seat from behind, something that can only be experienced in the hot seat.
#85
10-03-2012 | 12:00 PM
Thread Starter
|
Former Vendor
Joined: Apr 2012
Posts: 376
From: Anaheim, CA
Rep Power: 0
Vividracing is selling our kit for only $8000!
Check it out: https://www.6speedonline.com/forums/...earance-7.html
Check it out: https://www.6speedonline.com/forums/...earance-7.html
#87
10-12-2012 | 07:26 PM
Registered User
Joined: Sep 2007
Posts: 172
From: boston
Rep Power: 24
I had the Vf kit on my car for about 40k miles and currently have a TPC tubo on the car. My car is a 3.4l, so a little different. The VF had the same power curve as as the stock engine with a lot more power. I had a 3.3in pulley. The TPC feels totally different. Lots of low end torque and pulls hard to red line. Feels more like a V8 as apposed to a high revving 6.
