Defined Autoworks Header Install!

NoDOHC Defined Autoworks Header... 05-24-2011, 11:34 PM

RICE RACING WTF is up with the BP... 05-25-2011, 02:48 AM

FC Zach ^ ^ LOL, I thought the same... 05-25-2011, 03:28 AM

infernosg Very nice. I assume this is... 05-25-2011, 06:54 AM

project86 ooh i likey 05-25-2011, 07:01 AM

diabolical1 oh boy, i can't wait to see... 05-25-2011, 04:11 PM

NoDOHC The oil in the engine bay was... 05-25-2011, 10:35 PM

GoopyPerformance Very nice header, Keep up the... 05-26-2011, 05:56 AM

NoDOHC Instead of port-matching the... 06-16-2011, 07:10 PM

mazpower Beautiful headers, not trying... 06-16-2011, 08:56 PM

NoDOHC I had them weld the second o2... 06-16-2011, 10:54 PM

GtoRx7 Looking good :) glad to see... 06-24-2011, 01:46 AM

Mazdabater I have no real idea about... 06-24-2011, 03:38 AM

Silver86 looking good! lovin that... 06-24-2011, 12:24 PM

NoDOHC The front and rear headers... 06-25-2011, 10:12 PM

j9fd3s i haven't checked... 06-26-2011, 12:31 PM

Libor Could you contribute more?... 06-26-2011, 12:49 PM

j9fd3s sure, um the gsl-se and the... 06-27-2011, 11:49 AM

NoDOHC Update: My previous test... 07-01-2011, 10:26 PM

NoDOHC Here are a few waveforms with... 07-02-2011, 07:31 AM

RICE RACING Header wrap on a Peripheral... 07-02-2011, 09:26 AM

j9fd3s even not wrapped the headers... 07-02-2011, 12:22 PM

GtoRx7 You can leave them wrapped... 07-06-2011, 12:05 AM

GoopyPerformance Yes 321 stainless is very... 07-06-2011, 06:43 AM

NoDOHC Thankfully, this isn't a... 07-02-2011, 11:57 AM

j9fd3s i'm not sure i know what i'm... 07-02-2011, 12:20 PM

NoDOHC Thanks Logan! I thought that... 08-01-2011, 10:59 PM

Libor So if I understand correctly,... 08-02-2011, 07:29 AM

NoDOHC That is a good question, I... 01-02-2012, 12:11 AM

j9fd3s hmm i don't really like MAP... 01-12-2012, 03:13 PM

08-02-2011, 07:29 AM

#28

Libor

Rotary Fan in Training

Join Date: Aug 2010

Posts: 54

Rep Power: 15

Quote:

Originally Posted by NoDOHC

With my tune which previously ran 13.2 on the dyno I was running 17.2:1 AFR at 7200 RPM. The largest VE gain over the racing beat headers was about 5,500 rpm, where the engine actually lean misfired at WOT (lean of 18:1). I can't explain this, as the headers are not tuned for 5,500.

With the minimal overlap this engine has, I am surprised that there was that much VE on the table.

So if I understand correctly, you´re pulling 30% more airflow at 7200 RPMs?

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