i believe Evo does upgrade the injectors, but I'm not really sure it's necessary. If your car isn't running lean, why bother.

 

i guess if you are running a ton of boost then you'll need it but at the lower levels these kits put out your thinking has merit. along those lines why would they need an intercooler. it looks like ruf's kit doesn't have one.

ah, i was mistaken about the install then. thx

 

the intercooler is necessary to bring intake temps down. the kit would really suck for HP (like RUF's) without the intercooler. Colder air=HP. i'm sure it's not required to have one, but why not if you can make additional HP without sacrificing anything other than losing some intake pressure through the IC plumbing?

 

where is the intercooler located on the TPC. i think the evo is in the front of the car. i thought this would lead to a substantial pressure drop.

 

both kits use an intercooler in the engine compartment.

the evo uses a 3rd front mount radiator with the intercooler.

the tpc kit offers the 3rd front mount radiator as an option.

however, highly recommended. FA did some testing and significantly reduced intake temps using the 3rd radiator with the intercooler.

the tpc kit also plumbs the 3rd radiator independent of the stock cooling system. not sure how evo does it. in TPC case, if you should loose an interooler line (leak??) somehow, it would have very little effect on the car and you would still be able to drive it.

 

Wow, sounds like some good stuff! I'm really excited to finally hear an accurate review of this kit from *unbias* sources. To me, is simple logic on how an Eaton 90 blower would do A LOT more for the powerband on a 6cyl. than a centrifugal SC ever could.

...like I said before, I can't imagine how fast a 3.6L C2 would be with this package!!! (a lighter car, with less driveline loss) ...just by going from your statements I'd say it should *easily* be able to outrun an X50 TT.

 

thx for the info.

so it seems that for both kits the intercooler is water/air and with TPC is independent of the engine cooling system. i bet ya the evo kit is the same. you can't cool down charge air with hot engine coolant.

 

i could be wrong, but i though that i heard that some were installing the evo kits inline with the car's coolant system.

 

THAT CAN'T BE GOOD, but i won't quote you on that.

 

Deputydog95-Mine is a custom vortec setup and I still choose to use the seperate closed loop water system with some mods. The inline evidently won't cool it enough, rad temps just to high to really help cooling SC discharge air. Just my opinion.

 

I just breezed through some of these posts. I want to make a few statements to clarify some of the unanswered / incorrect information about the EVO / VF Supercharger system. These statements are not designed to "stoke the fire" just want to make sure the information about OUR kit is straight.

1) Fuel Injectors: we change the injectors due to the OEM injectors not being large enough for the power that is being generated. We tried to build the kit with OEM injectors, however they would have had to run at 100% duty cycle at over 4.0bar to be adequate which in my opinion is not reliable.

2) Cooling System: Our kit includes the OEM front radiator which operates separate from the engine coolant. This 3rd radiator cools the water that circulates through our intercooler to cool the intake charge.

3) Drive train loss: We run the dynos in 3rd gear due to airflow. The car will generate more power in 4th gear but we cannot duplicate 100 MPH airflow to accurately test what the power will be on the road

4) Dyno Tests / Posted Graph: It is very difficult to compare 2 different cars, on different dynos and come up with accurate results. The dynos on our website are about 3 years old and we have made some improvements to the 3.4L system since that dyno was posted. That was about our 5th or 6th car that we built. I will post some updated dynos in the AM.

5) Dynos / DynoJet / Hendrick MS: Dynojets and dynos in general are a great tool for us to see power gains, etc. I will agree that a water break dyno is a great tool as well but has a different purpose. There is more than 1 correct tool for a given task. It is not realistic to pull engines and deal with the set up that is required to dyno 1 engine. Hendrick MotorSports is one of our dealers / installation centers who have actually installed several SC systems. In their facility they too have a Dynojet that they use for testing purposes for a variety of their different race cars.

6) We have installed and sold over 100 kits worldwide with great success. We do race and have tested most all of our products not only in race conditions, but real world conditions. We spent an entire year testing our 3.4L in varying conditions, extreme 115+ degree weather etc. I still own and drive the original 2000 SC car as well as our 997 with the supercharger. We have been testing the 997 to the extreme before we release the system to the public.

In summary, I hope this can add some clarification to this comparison. I will post some updated, (2004-2005) dyno graphs of some other 3.4L/3.6L cars that we have built. If anyone has any additional questions, you can feel free to call or PM me.

 

Todd: CAYENNE PLEASE, we've been waiting very patiently

 

VERY soon.....I promise. This time I mean it

 

thx for speaking up to. i for one can't wait to get mine installed.

so what do you think about over driving the VF SC to get more torque down low?

and one last thing CARB.. PLEEEEAAASSSEE!!!!!!

 

Todd: can you please PM me what hp figure you are trying to achieve with the SC, please be quick with the SC, I need it to be worthed before I go back home for good and sell the car.