obx header
i have an obx header that i haven't installe yet. i'm waiting to get a testpipe and cat back before i install it. the problem i have is that the outlet on the header has an inside dia of 2 1/4 in. but all the testpipes and afordable catbacks i've found say that they are 3 in.
willa 3 in work? |
A friend of mine said it should work, because the flanges should be the same. is this true??
|
yes the flanges are the same, but did your "friend" mention that by replacing the cat with a test pipe you'll only see about a 3hp gain? not only that but you'll also be contaminating the environment.
|
only 3 hp???shouldn't it be more because the exhaust is free of the restriction of the cat??
i grew up on classic v8s and want to use some of those same ideas |
Your lucky to see 3-5hp from a aftermarket exhaust mani for a NA KA. I myself just bought a HOTSHOT from a friend and from what i read on a dyno chart on another forum is the the hotshot proved the most hp out of DC Sports, OBX ect...the guy tested them all with charts.
|
+1
Your only going to see a 1-2whp increase I also believe HS Runners are 1.25" and the outlet should be 2.5" if I'm not mistake, dont know the OBX size besides the outlet is 2.5" also this was a test done on a MX-5 (Stock was 104) http://img.photobucket.com/albums/v7.../Test-Pipe.jpg |
Originally Posted by jramosthe1st!
(Post 387487)
yes the flanges are the same, but did your "friend" mention that by replacing the cat with a test pipe you'll only see about a 3hp gain? not only that but you'll also be contaminating the environment.
Originally Posted by slappy
(Post 387522)
I myself just bought a HOTSHOT from a friend and from what i read on a dyno chart on another forum is the the hotshot proved the most hp out of DC Sports, OBX ect...the guy tested them all with charts.
Besides how did you get that hot shot header? Hot shot has been out of business for over a year. Got a link? |
well vinnie your engine is awesome so of course no one is gonna beat your header dyno :) i know that a header will increase hp but you gotta add other mods to it to get the gains your looking for.... one question vinnie i have a early 95 zenki if i punch out the cat (clogged) will it throw a code for me as well?? i have 2 o2 sensors i believe..?
thanx Eric |
Originally Posted by SmokedZenki
(Post 388234)
well vinnie your engine is awesome so of course no one is gonna beat your header dyno :) i know that a header will increase hp but you gotta add other mods to it to get the gains your looking for.... one question vinnie i have a early 95 zenki if i punch out the cat (clogged) will it throw a code for me as well?? i have 2 o2 sensors i believe..?
thanx Eric Yes... You will need a high flow cat. You can't used a punched cat. |
okay thanx vinnie
Eric |
Originally Posted by 240-kid
(Post 387526)
+1
Your only going to see a 1-2whp increase I also believe HS Runners are 1.25" and the outlet should be 2.5" if I'm not mistake, dont know the OBX size besides the outlet is 2.5" also this was a test done on a MX-5 (Stock was 104) http://img.photobucket.com/albums/v7.../Test-Pipe.jpg |
so many factors determine HP guessing at it is not good just install it tune it dyno it drink beers
|
All times are GMT -7. The time now is 08:08 PM. |
© 2024 MH Sub I, LLC dba Internet Brands