Berk header dyno

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Oct 26, 2007 | 03:47 PM

#11

Startrek

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Joined: Dec 2006

Posts: 1,953

Likes: 7

From: California

I cant read the numbers that well
can someone write what every pull was?

Oct 26, 2007 | 05:57 PM

#12

ShocK

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Joined: Jun 2006

Posts: 2,540

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From: Lexington, Ky

Horsepower:
Run 1: 205.85whp
Run 2: 202.61whp
Run 3: 210.37whp

Torque:
Run 1: 142.58
Run 2: 142.68
Run 3: 145.56

Oct 26, 2007 | 06:26 PM

#13

chuhsi

Joined: Jan 2006

Posts: 6,420

Likes: 4

From: San Francisco

I think that you need to let the ECU relearn to see the full header gain. Can't just bolt it on and do a run to compare.

Berk says it here:
https://www.s2ki.com/forums/index.php?showtopic=537328

Oct 26, 2007 | 06:53 PM

#14

LostMotion

Joined: Nov 2006

Posts: 5,217

Likes: 4

double post

Oct 26, 2007 | 06:54 PM

#15

LostMotion

Joined: Nov 2006

Posts: 5,217

Likes: 4

Quote:

Originally Posted by the berk guys

Some notes about the runs. The stock ECU is very good at adapting to changes in engine VE. When you start out with a change, you'll see the changes in the motor with a richer A/F.

Difference here is that the AFs aren't moving, like I said above.

Oct 26, 2007 | 07:00 PM

#16

smirfs2k05

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Joined: Jan 2006

Posts: 8,255

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From: Victorville

I'll post again next week i'm getting a vafc2 tuned at church's...obviously I'm going to make more power at church's cooler ambient air and his dyno is below sea level. I'll keep you guys posted

Oct 26, 2007 | 07:01 PM

#17

smirfs2k05

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From: Victorville

I did lose a little up top but what you can't see and I shouldve had the dyno operator print out is that I gained the 6hp claimed right about vtec cross over

Oct 27, 2007 | 11:06 AM

#18

Fastfour

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Joined: Feb 2004

Posts: 1,607

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From: Seattle

I made 1 less tq with my AP2 and a v stack, otherwise stock. I'd bet the elevation is playing somewhat of a role, but losing hp/tq w/ a header goes to show it's tough to net gains w/ bolt ons on an ap2.