pkrasusky

Great, thanks for the clarification Jeremy. Figured as much then on the dyno comparisons. Great to hear - I know my car runs strong but it's always nice to confirm. The gains from my exhaust install will be appreciable... tho... mine will likely net slightly less gain seeing as my cat is already gutted. Duly noted.

I shoulda asked you before - what was your boost set at? Factory's 0.8 IIRC?

Tx again.

Oh, and thanks for setting me straight WERK-I... I *knew I'd read it somewhere. Got it. You really figure a 15% drivetrain loss is the right factor? My dyno guy estimated 10-13% with 13 being on the likely high side. My gut'd tell me 15 was more accurate but who really knows. I'm sure this has been kicked to death over the ages so you're likely right! 8-)

-Paul
www.krasusky.photos.us.com

WERK-I

Hi Paul,
I just use 15% loss because it's easier to do the math.
Depending on atmospheric conditions, you're liking to see a least 2% variances from day to day anyway.

John@Fabspeed

I actually did a negative pull with this car on the dyno to give me an accurate reading of how much horsepower was lost through the drivetrain. We are losing around 34hp through the drivetrain which is pretty close to a 15% correction factor.
Anyways I installed the Fabspeed cold air intake today on the dyno and made a couple pulls. Below you will find the dyno graph from today.

notthd

Too cool guys, thanks for posting the progress and the Dyno info- Cheers, Mike

jimculp

It's nice to know the drivetrain loss- thanks.

pkrasusky

That's cool on your cold air intake (ok... baaaaad pun).

So if the Dyno Jet uses a TCF of 15%, the Mustang would be more like 18% then? Interesting.

-Paul
www.krasusky.photos.us.com

John@Fabspeed

Here's two videos that we've made this week. The first one is an explanation regarding the exhaust on a 930T and two dyno runs with the muffler bypass/zork tube and an air intake system installed. The second video is a street demo with the same products installed.
More to come as we continue to search for more power dealing with our 930T slantnose.

Exhaust Demo
http://www.youtube.com/watch?v=c3bIJJ2jpng

Street Demo
http://www.youtube.com/watch?v=hGy8TAgF3MA

nathanUK '81 930 G50

Sounds fab! Not too loud IMO.

Would like to see some pics of the intake, both inside and out.

Looking forward to see where this ends!

Guns951

Wow 27 hp increase from the intake? That's pretty cool, thanks for sharing!

nathanUK '81 930 G50

Intake & Zork, not just Intake. Seems Intake was worth around 5 tq & hp.