The only way to know for sure would be to conduct more tests...burn whatever gas is in the tank and fill it with 92/93 and try again.

http://www.the370z.com/engine-drivet...s-stopped.html

Take a look at our Dyno Graphs on 93oct... We didnt see any knock whatsoever. I chalk it up to bad gas if anything. Ben is actually running your HFCs and exhaust. I am bone stock and when you look at the graphs they are nearly identical.

[IMG]http://i234.photobucket.com/albums/e...tillendyno.jpg[/IMG]

for the lazy people :D

Nice! I'm totally stoked at how much power these 370's are picking up with just simple exhaust mods.

It's time for us to develop the Berk Technology 370Z exhaust......

Yes, you should do that, how long would you need my car for R&D? :tup:

BTW, are the HFC's back in stock ?

Knock is a tough one to call on a single blip. I ran a knock sensor on my GTS-3 944 turbo. It was tuned with an Electromotive Tec3. I made plots with race gas, 50/50 blends and with 93 octane. You could see blips in all of them.

What you had to do was get an idea of what the fingerprint looked like for knock. There was always some noise. If it went out of that range there was an issue. This all took a lot of time and it wasn't done on one dyno day.

We're building the 370Z HFC's tomorrow. Will be shipping by the end of the week.

If you want to bring your car by for the exhaust R&D that would be awesome. We would need the car for about a week. We'll give you a free set of HFC's or we can give you a free exhaust when the production pieces are available.

Let me know!

Email us or give us a call.
714-546-BERK

:icon18: that's a great deal for whoever can take you up on it...

here's another dyno chart for inspection, for all the knock experts !

at around 4,400, I think I see a BLIP !! perhaps we need another thread for BLIPs ! :eek:

Keep us posted please! I would be interested in a Berk catback.

Are you guys sure this isn't the VVEL system kicking in? On cars like Honda with the Vtec system they have a little switch over that shows up. Just a assumption here.