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From: "William D. Robinson" <vultureboy@mindspring.com>
Subject: RE: 22b Headers

...the stock header and the WRX header were identical in every respect except the WRX header has a bung for an O2 sensor on the right (collector) side.

Later I checked out a bunch of dyno tests and found out that the majority of "bag-of-snakes" type headers actually produced less power than stock.

Hey Bill, thank you for that critical info on the exhaust manifold fit. Helps to confirm what I have suspected.

I am keeping my eyes peeled for the turbo exhaust manifold with the up pipe section and intake manifold because I want to have them matched ported to some heads I will eventually have done. I have been collecting part numbers from the dealer for various engines so I can expand my salvage yard search. There is sometimes referenced both a left and right exhaust manifold with different part numbers for the same engine. I thought it was all one piece. What am I missing, do the N/A engines use 2 exhaust manifolds?

You said the "MAJORITY" bag-of-snakes produced less power. Which, if any, produced more please?

Larry Witherspoon
ssspoon@aol.com
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Yes you are exactly right the only extra power you will get with the
headers is by port matching, or getting someone to tune the headers
on a dyno.

The standard headers are effiecent just damn heavy.

Dan


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Hey-N/A motors have 2 exhaust manifolds but the exhaust assembly is one piece up to the 2nd cat. My N/A Borla headers (2nd series) with a custom up & down pipe work extremely well with a 2.25" exhaust. If you`re talking about the MRT or STI turbo headers, I believe they are for upper-end, high-perf. motors (power from 4-8,000 rpm. A street machine may not benefit from these specialty headers but an intelligently designed system FOR THE APPLICATION should work just fine. Some people that`ll be running the 3" exhaust system are going to be miffed because the bottom end (up to 3500 rpm) will be like a WRX--too slow to spool. Except in one situation, larger is`nt always better! Be wise---ROD (AZ.)

----- Original Message -----
From: ssspoon@aol.com
To: BC-BFLegacyWorks@yahoogroups.com
Cc: vultureboy@mindspring.com
Sent: Sunday, February 24, 2002 10:49 AM
Subject: [BC-BFLegacyWorks] "William D. Robinson" on 22b Headers

From: "William D. Robinson" <vultureboy@mindspring.com>
Subject: RE: 22b Headers

...the stock header and the WRX header were identical in every respect except the WRX header has a bung for an O2 sensor on the right (collector) side.

Later I checked out a bunch of dyno tests and found out that the majority of "bag-of-snakes" type headers actually produced less power than stock.

Hey Bill, thank you for that critical info on the exhaust manifold fit. Helps to confirm what I have suspected.

I am keeping my eyes peeled for the turbo exhaust manifold with the up pipe section and intake manifold because I want to have them matched ported to some heads I will eventually have done. I have been collecting part numbers from the dealer for various engines so I can expand my salvage yard search. There is sometimes referenced both a left and right exhaust manifold with different part numbers for the same engine. I thought it was all one piece. What am I missing, do the N/A engines use 2 exhaust manifolds?

You said the "MAJORITY" bag-of-snakes produced less power. Which, if any, produced more please?

Larry Witherspoon
ssspoon@aol.com
To unsubscribe from this group, please send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com



zZz <http://docs.yahoo.com/info/terms/> .





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