test\race pipes

[chad1200]

anybody have them installed? i've got a set sitting in my garage but i'm very hesitant to install them. i don't want a check engine light. i've done a bunch of research (of course) but i'm just not sure. i don't care about the legalities of it. i just don't want a light nagging me all of the time.

anybody?

[gwoods]

IF you get cells put spark plug anti foulers between the rear O2's and the pipe.

http://www.scionlife.com/forum...33615

Heres a link to a good write up this mod works the same for all brands... sorry for the outside link but Scion is hardly competition LOL

I had Long Tube headers, no cats, and dual 3" pipe into a giant dual in dual out Magnaflow glass pack muffler on my Hemi ram and the anti fouler trick cured my 0420/0430 CEL blues!

Jeff

[gwoods]

The O2 simulator's do not work on modern 01+ car because the PCM's are smart. I have sat at a light in my ram and watched the motor purposfully run rich and then run lean to test the O2 sensor function. I had a wide band O2 sensor and it would spike 17 for a second drop back to 14 then a second later drop down to 12 for a second and then go back up to 14.2.

It was crazy! I had a fuel pressure gauge and the FP stayed at 58 psi during the rich/lean and my idle stayed at 800 rpm (6.1 cam).

If anyone wants to try O2 simulators I have a set new in the packaging you can have 4 free! They do not work.

Jeff

[chad1200]

excellent info Gwoods. i'll hunt around for some of the pre-drilled ones.

you ever get your truck inspected like that? they use a sniffer?

[gwoods]

In Phoenix it was emissions exempt unil July 2009.

In 2009 I was planning on adding electric cut outs that would bolt in with flanges. I would have a set of cats too bolt in for emissions testing in the same spot as the cut outs.

I don't know if it would have passed though.... shift kit and 2800 stall converter, lots of 6.1 hemi parts... intake, cam, valve train ect. Probably would have failed on hydro carbons... luckily I broke the transmission and engine before I had to find out.

I put it mostly back to stock before selling it and sold my parts on ebay made about $3000! The Nitrous kits made about $2,000 selling them as pieces.

[IlsG35]

i did mine n plugged it right in with nothing... n i got no cel. but my car does drop like gwoods said his ram does...it goes from 14 to 12 to 13 n back to 14 again in like 15 sec n it drives fine an everything...

[chad1200]

i heard the 04.5+ year models will throw a light and the previous ones won't. you kind of confirmed that. of course mine had to be made in july of 04.

i like gwoods' idea. my dad had mentioned them before. a switch that opens up a cut out just before the cats?

[IlsG35]

yea that cut out will reduce ur power since ur not turbo u need that back pressure... but it would sound cool tho...

[gwoods]

Not necessarly.....

You don't loose power from having open exhaust. You move your torque up the RPM band OR you trade torque for HP. My truck was the fastest with long tube headers and glass packs bolted right to the headers. I had to add some pipe because I was getting CO2 in the cab.

If you do an electric cut out and you find you are not as quick you can always add some smaller diameter pipe after the cut out and run it out to the end of the car.

A lot of the Hemi rams did a Y pipe off the long tube headers and then added pipe to the Y bringing it out from under the car then installed a manual cut out at the end. Cheaper then E cut out more torque then just a cut out.

Jeff