After 2 weeks with this car.
Taking on and off the HFC's for tests (We owned the demon bolt x8)
Testing various Type 2 and Type 1 setups
Calculating frequency
Calculating exhaust gas temp
Calculating the velocity of the exhaust gas
Measuring the length of our HFC

We have done what no other company accomplished since the VQ first debuted with the G35/350z.

The main task at hand was eliminating the rasp and hiss caused by Testpipes and HFC's.

The video below shows some revs with AEM cold air intake + ARK HFC Prototype + ARK Type 2 v2 Exhaust prototype.

 

Orly?

 

i have seen lots of ark on 350z and g35 and they sound very good, wish i could get a set
oh hfc? not yhose yet sorry,

 

Dyno graphs?

 

if u guys can make a set of tps without rasp or hiss that be'd great

 

Pretty sure the Motordyne TDX2 + ART pipes has no rasp or hiss...

I know my exhaust doesn't have it either, so it's been done before That ARK does sound nice though.

 

Ark,
I listened to the video and i didn't hear a thing.. but u should test it under load.. that will make a difference.... if no hiss or rasp then u.. are right on the money.. also make them for AT and MT

 

RyanM8. Hiss when you let off the throttle is noticeable. We will be starting on the G35/G37 now since we have everything laid out ready to be put together.

 

Hey ARK ever heard of Motordyne? You might want to be careful with making bold statements you can't verify are true.

You're definitely not the first but props for working hard to make a good product. However with the ARTs available I won't be looking at anything else. Sorry.............

 

I was under the impression. ART still generates hiss/Rasp. I believe most of the Rasp was taken care of but the hiss is still there.

 

Some members have reported initial hiss when they were brand new bit it goes away quickly.


Rasp from any Motordyne product does not exist.

 

There's only hiss with certain exhausts. When I had the OEM setup with ART pipes, there was some hiss. None with the custom exhaust though.

 

Definition of hiss and rasp may vary. We tested our HFC with the exhausts below
ARK
HKS
Invidia
Greddy TIC
Stillen

 

Nice job then if you could eliminate it for all those

 

how did it sound with HKS exhaust? also any update??