BP rocks. I emailed their generic customer service email address and told about the tint I saw in the bleed-off fuel (BP/Amoco Ultimate)back when i checked my fuel pressure (was suspecting FPR problem but tested okay).

They responded within 12 hrs and stated they were 1. going to post a refund credit for the entire tankful to my BP card, and 2. investigate with the station I bought the Ultimate from and try to find out the deal. They did post a credit to my account for the full $24.xx the next day!

Go beat that kind of customer service somewhere! :cool:

 

Ummm yes it does. Its up to the locals to enforce it if they pull you over or otherwise.

In correct. Leaving the cavity open will allow increased resonance in some cases, but it will not HURT performance. Yes, a straight pipe in its place is better.

 

________________________________________ ___________________
The truth is that if you "gut" your cats the tradtional way by jamming a broom handle inside to break up the inside you create a relatively large empty area which will hurt your performance rather than help it....the only way to prevent this is to cut the cat apart and weld a straight piece of pipe through it.

There are much better (and legal) ways to improve a C4's performance....lose the frisbee...open lid & K&N....TB bypass...etc.
________________________________________ __________________

For someone who is such a legal begal you sure do know alot about gutting a converter. HMMMMMMMMM

By the way I think pretty much everyone knows about all of the above statements. But thanks for the info. :D [Broom handle] your such a kidder

 

Scorp you are a Corvette god...I will be the first to admit you have probably forgotten more about Corvettes and the small block Chevy engine than I will ever know. I don't claim to be a mechanic and I can barely do a decent tune-up. I have read many of your posts and I have seen pictures of you elbow deep inside your engine dozens of times. So I am not questioning your skills or knowledge at all.

So on this issue I will not disagree with you....but I will let Random Technology disagree with you :lol:

This is a direct quote from their website:

Besides being an illegal modification, removal of a catalytic converter is just as likely to decrease horsepower as it is to increase it. It's true that most original equipment converters create enough exhaust system backpressure to adversely affect performance so a straight pipe in place of a catalytic converter would appear to be the optimum configuration for maximum power.

But appearances are often deceiving. Computerized engine management systems are precisely calibrated to deliver optimum performance with an exhaust system that offers some amount backpressure. When backpressure is all but eliminated, air/fuel mixtures can easily become too lean to allow an engine to produce maximum power. Reestablishing optimum air/fuel ratios requires a custom computer calibration, altered fuel pressure or both.

Each vehicle has its own unique computer controlled air/fuel calibration so each responds somewhat differently to removal of a catalytic converter. Consequently, removal of a converter can result in a performance gain, a performance loss or no change at all. The question is, why contribute to dirty air and risk of a potential fine? Installation of a Super High Flow catalytic converter will allow an engine to produce maximum power while remaining emissions legal.

Exhaust system tuning is another phenomenon that impacts power output. In some dyno tests highly modified engines have actually produced slightly MORE horsepower with Random Technology SHF converters than with an open exhaust - even though air/fuel ratio was optimized for each test. This unexpected bonus is the result of the same tuning effect achieved with tubular headers of a specific length. Installation of a catalytic converter in a full-length open exhaust pipe defines the "end" of that pipe, effectively shortening it. The resulting impact on exhaust system acoustic waves and resonance can actually improve efficiency thereby resulting in a slight, but measurable power increase.

Obviously, your mileage and horsepower may vary, but the point to remember is by using high efficiency catalytic converters, an engine will produce maximum power while remaining emissions legal.

 

:withstupid:

Let's not give the environmental advocates more ammo to shoot at sports car and performance car enthusiasts with. Lets not hollow out catalytic converters. One thing I like to throw in the face of some SUV owners that slam Vettes is that Vettes are more environmentally friendly than their precious Wagon Queen Family Trucksters. Lets keep it that way.

 

You're right, I'm in PA and they're everywhere :D

 

my suv gets 10 to 11 my car 21.5 cant even come close

[Modified by fiberglasscoffin, 10:31 AM 5/18/2003]

and at work 4 mpg i think


[Modified by fiberglasscoffin, 10:32 AM 5/18/2003]


[Modified by fiberglasscoffin, 6:27 PM 5/18/2003]

 

:D Keep in mind they want to sell you something.

 

:skep:

Anyway, there is a gas station in Metarie by Paretti Jaguar that sells 103 Octane at the pump.

 

Wish I lived near there! :thumbs:

 

Gone about 10 years ago