Has anyone tried dual 1.5" pipes?
11-06-2003, 04:37 PM
#1
Registered User
Thread Starter
Join Date: Apr 2003
Location: SEPA
Posts: 104
Car Info: '98 Neon R/T
Has anyone tried dual 1.5" pipes?
On a N/A EJ25? I'm talking about from header back. That would eliminate a need for equal-length headers (though it would probably cost about the same) and flow about as much exhaust as a single 2.25" pipe.
I'm sure you could get some older Honda cats to work in there. Mufflers would probably be the toughest part. Or bring them together just before a single muffler. The EG velocity probably ain't that great by then anyway.
I'm sure you could get some older Honda cats to work in there. Mufflers would probably be the toughest part. Or bring them together just before a single muffler. The EG velocity probably ain't that great by then anyway.
11-07-2003, 08:25 PM
#4
Registered User
Thread Starter
Join Date: Apr 2003
Location: SEPA
Posts: 104
Car Info: '98 Neon R/T
I expected as much. I'm new to the boxer engine and Subarus in general, but not to cars altogether, so I have to ask odd questions.
Last edited by Mat - 98 R/T; 11-07-2003 at 09:37 PM.
11-07-2003, 09:39 PM
#6
Registered User
Thread Starter
Join Date: Apr 2003
Location: SEPA
Posts: 104
Car Info: '98 Neon R/T
Originally posted by Kostamojen
The problem is the 02 sensors.
The problem is the 02 sensors.
11-08-2003, 07:38 PM
#7
NASIOC Slut
iTrader: (2)
Join Date: Nov 2002
Location: Roseville, CA
Posts: 4,723
Car Info: 1995 Subaru Impreza 1.8 L
There are 2, they are located in sequence, and designed to read flow pressure and maybe temp as well... Thats why aftermarket exhaust systems cause CEL's on them most of the time. If you were to split the exhaust in two, you will dramatically change flow and temp. Probably the only way to get around this would be to force the sensors to read like they are reading correctly all the time, but the car wouldnt run too well... It is a fun idea though.
11-11-2003, 03:39 PM
#8
Guest
Posts: n/a
I'd think you could do it with with four O2 sensors, but you'd have to do a little electronics work with a summing amp (homemade, of course) for the two pre-cat sensors and the two post-cat sensors. The hard part would be getting those voltages to output correctly. Then again, maybe it's something a stand alone could do better than trying to make it work with the stock ECU.
Oh what a can of worms!
Oh what a can of worms!
Thread
Thread Starter
Forum
Replies
Last Post
dannyboy
Engine/Power - EJ20T (pre-2006 WRX and JDM)
4
10-16-2003 11:03 AM