Amen brutha! Great idea! I would make it more like $300+ to make it more meaningful. Put your $$$ where your mouth is I say.....

Now that I think about it, this policy shoulda been in place last year on at least one occaision I can think of....

 

yes its good ,but then is no limit for cat too. Since one will flow better then other or one wont even work... Basicly just for show. So if you have a sniffer you can make a limit for smog or emission. Since that is the whole idea. Not just lets have a cat , i think.
Or lets make a no cat rule over the street class. I think that would be a great idea . Cat only requierd on street right? If that is the case why the tuner or unlimited class cant run without it?
Those cars will not change the GW. issues anyway.
I think they have the equipment to measure the noise ,so why they wouldn't do the same with the cat? without the measurments its kind a shady buisness ,no?

 

I'm ok with a sniffer as long as if the cat fails the sniffer, the owner has the option of pulling off the cat off and showing that they have an actual one...

 

Any decent cat should give a night and day difference in emissions from a test pipe. Just don't push the envelope with some "race cat" and you should be fine.

 

Agree. If it fails the sniffer, then it can still be OK as long as it is able to pass a complete visual test as in not straight thru and no holes punched etc. I recomend clamps, not welds to hold your cat in place.


ROBEVORS, I dont understand you, one of us drunk be must .....

 

So far, the only portable 4 and 5 gas analyzers are in the $3000 range.. Surely WAY out of the range we would be willing to spend to police the cat requirement.

You can find analyzers that only detect CO (Carbon Monoxide) for a few hundred bucks, but Im not so sure that will do what we need it to do.

If anyone can point me in the direction of a portable unit that can test for the gases we need to test, that is reasonably priced, please post the link here...

 

After doing further research, it appears as though reductions in CO is one function of a catalytic converter... So, now it is just a matter of determining what the threshold is for an acceptable level of CO coming out of a tailpipe.

Surely I can test a number of cars I have direct access to, and see what the readings are, knowing these cars have cats installed. Then I'll test a few cars that I know do NOT have cats installed and see what the difference is.

Im assuming it will be fairly evident when a vehicle does not have a cat installed and working, based off the CO readings.

Nikolas

 

but then this would be defeat the purpose to have one, no? That was my point , if we using cat then we need a limit . Other wise we just need one for show, so its pointless. One honest guy will show up with a highflow cat, one is with the factory cat, and one will show up with one just for show/probably me/. Because the rule are not clear. So all will have a cat, but i think that situation would be highly unfair. Don't even mention when they heat up....

 

Here's the problem. I anticipated this discussion about cats, because I want the highest flowing one I can find. Before buying it, I specificly asked if a super high flowing one was ok. Nik posted up that it was fine. So, WITH THIS CLARIFICATION, I went out and spent over a hundred dollars on a race cat. That cat is acceptable, period. End of story, right? This new rule is already costing me over $150. The heck if I'm gonna go get another one after already getting approval... See the first post of this entire thread.

Nik answered:
To be honest, I'm baffled that after requiring cats on street class cars, that these same cars would be able to dump their wastegates to atmosphere. That arrangement is VERY unstreet and that is a quite a bit of exhaust to be dumping to atmosphere without being cleaned by the cat.

 

^ I dont understand why the tuner class and above needs catalic converter. They really not street legal from the begin with....
The street or street modifyed class it is clear, but above?
I don't get it. Also i do not have too much money , so i really need to look the rule book before i get start to building. And i do not have too much time before the season starts. I dont want to buy stuff what i have to change or i need a retune.

 

There are 2 Street Tire classes in SCCA solo that require a cat. There are many functional race-cats out there like what Cobb, Random, etc. and several hi-end euro exhaust manufacturers offer. The SCCA will check to see if the cat has a core under a protest, but even they rejected the idea of sniffer testing. I believe sanctioned rally has the similar rules.

The cat could be functional and the car might still not pass a sniffer test, due to a rich tune. Asking to require sniffer testing sounds like a way to penalize the high HP cars.

 

YEs i agree ,that is why i 'm asking why a tuner and above class needs it?

 

yup... I went out & already bought a CAT too based on the rules as they were posted on release date & after clarification from Nik...

I do this for fun ya know.... not to throw money away

n

 

I'm with u smogy (your name sounds especialy ironic for this discussion....). If you spent time+$$$+effort to set your car up based on published rules, then you should be legal all year. BTW, what fuel will you all be running?

The only exceptions should be for safety issues and if some really creative person bends/interprets a rule loophole in a crazy way (as mentioned previously, turbine engine swaps still allowed... ).



SSRX7, does the SCCA have a tech system in place to test/check for cats or is it simply a visual inspection if a formal protest is filed? Do they require a bond with a protest? $$$?




Rob, what do you mean by: "that is why i 'm asking why a tuner and above class needs it?" As far as I understand, only the street class has a cat rule.

 

I thought everybody needs it...
sorry . My bad english and my short brain.Sorry again .
That is a good news for me! Since i will run in the tuner class hope fully.