OBX Calif Legal?

[RON]

On e bay... don't see any provision for a CAT Also, what about O2 sensor port?

http://cgi.ebay.com/ebaymotors/OBX-Header-97-02-Toyota-Camry-V6-3.0L-IMZ-FE-Manifold_W0QQitemZ170306968145QQcmdZViewItem

Sorry if this has been hashed over here..did a quick search with no answers.

Ron

[alltrac92]

No CARB EO number and not legal even if you add a legal cat you will fail a visual inspection.

[CaliLara]

If I know a smog station where the inspector is "visually impaired" would I be able to pass CA smog with OBX headers?

[Midias]

^ if you had a california cat welded on that was good enough to pass the tail pipe sniffer.

[RON]

^ if you had a california cat welded on that was good enough to pass the tail pipe sniffer.

So, this should then pass..including 02 sensor?

RON

[bbq bob]

the senser port is there.you will have to do what midias said and then find the visually impaired inspector.frank and i are having a stock cat welded to some flanges and then some flanges welded to the reseinator and flanges welded to the pipe so we can bolt on the cat for smog testing and then remove it.

[jetbtkng]

you dont need to weld the cat on, just have a muffler shop cut the front resonator off and put flanges on both the cat and resanator, the you can run cat free, or put the cat on when you smog, yhats what i have on my solara's...................

[RON]

you dont need to weld the cat on, just have a muffler shop cut the front resonator off and put flanges on both the cat and resanator, the you can run cat free, or put the cat on when you smog, yhats what i have on my solara's...................

Here's a thought....

I already have a custom Y pipe...very good one (SS) done custom for me by *CATTMAN* (the Maxima Guru) 8 years ago. This has my Cat already welded on. I should be able to bolt up the OBX headers to this pipe...right?

[jetbtkng]

ask greg or gabe they'll know................

[RON]

Here is a pic of my custom Y pipe. Note how both banks come STRAIGHT BACK...as opposed to the OBX Y pipe, which is more convoluted.


[/img]

Here is OBX Y pipe in comparison



Stock Y pipe

[Eye8Pussies]

so your pipe is basically a dump pipe as well....better than stock at least.

but equal length runners produce more torque in general. same with longer collectors.


but as to answer your question, no, your y-pipe will not bolt on to your headers....the design of the headers make them different lengths and dimensions than the stock headers from what I can tell when I installed mine

[RON]

so your pipe is basically a dump pipe as well....better than stock at least.

but equal length runners produce more torque in general. same with longer collectors.


but as to answer your question, no, your y-pipe will not bolt on to your headers....the design of the headers make them different lengths and dimensions than the stock headers from what I can tell when I installed mine

Thanks...

I'm not so sure about your take on the pipes though ....the twisted pipe restricts flow as opposed to a straight pipe. Anyway, I'll be doing a dyno at Church soon (without OBX) and it will be interesting to compare mine with Franks since we're both 5 speed SC...He had 6 lbs and OBX set up with cat back and PUMP/Injector upgrade with 285 HP (at time of dyno). I have 5.5lb and none of the other mods (stock headers and my Y pipe with cat back). Stay tuned!

[jetbtkng]

my 1st dyno was with the stock exhaust and air box and i got 252 hp, after the pipes went on, with stock air box i got 284.5 hp, now i have a cai i need to dyno again.....................

[RON]

so your pipe is basically a dump pipe as well....better than stock at least.

but equal length runners produce more torque in general. same with longer collectors.

Check this thread:

http://www.toyotanation.com/forum/archive/index.php/t-163589.html

Looping on the y-pipe to maintain equal length is dumb. It's just a big waste of velocity.
Route both banks straight back & create a proper merged collector. Not a hole in a main pipe angled in. Not a looped U back into the other primary. Not two pipes dumping into an open space. Not some crap 3-4" merged dump, or collector.

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Toysrme11-10-2006, 10:00 PM
Equal length is greatly over-stated. We do not have the massive cam overlap, nor the primary exhaust layout (even with headers) to go along with the firing patterns to take adantage of actual exhaust scavaging. Because of this. There is no need to have the exhaust pulses travel perfectly in time along the exhaust pipe.

In the case of engines like ours. The shorter, the more power end of story until you wanna start takling about single cylinder power figures of a very, very, very high nature. Not the about 30-35bhp / cylinder we all make.

If it was made after '92 it has a free cutting steel crankshafts. They're not going to care if half the engine is making afew horsepower different. Hell they likely all make different poewr figures anyway.

Another thread:

http://forums.maxima.org/general-maxima-discussion/104734-would-there-any-gains-making-y-pipe-arms-equal-length.html

Trying to run equal length pipes resulted in a slight kink in the system. The bends were too severe and caused the car to lose some of its "gained" power. I've noticed that on the Budget pipe, however, that they used a smaller pipe in the rear to even things out a bit. That's a good design.


And finally and most significant:

http://www.fordcontour.org/index.php?showtopic=6734

To fully understand headers,pulsed flow,independance and interference I suggest you take a look at some of the scice of exhaust gas flow in 'The Scientific Design of Exhaut and Intake Systems by P Smith C eng,M.I. Mech E M.S.A.E and J Morrison B Sc, Ph D, C Eng, M.I Mech.E ISBN # 0 85429 126 1

...was one of my old text books and has be revised a few times since then.
The Y pipe is considered a 'secodary' and most of the pulse/extractor effect of a good system happen wher the primaries meet...not the Y pipe.

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[99BlackSandv6]

No Frank you need to give that car to me. You've had your fun it's time to let someone else have a turn FOR FREE!!