I found a Catalytic that should offer little tradeoff
I found a Catalytic that should offer little tradeoff
Well the Ralliart in AutoX is forced to some obscure Street Prep class when using the RRm Downpipe. Rather than accept this I decided it would be better to bend a little and install a catalytic converter so then I can go back to STS.
A little Ebay hunting is never bad for anyone. This is what I found:
http://tinyurl.com/yqvnqr
This thing is small! It came in a box that was 4" x 11" and weighs 3lbs according to UPS. I can see why they call it a FlowMonster! It says full OBD2 compliant. I will see if this is valid once it is installed. I doubt this thing will be much more restrictive than a resonator.
The best thing is hopefully no more CEL. I have been getting the good old P0420 even with the antifoulers installed.
A little Ebay hunting is never bad for anyone. This is what I found:
http://tinyurl.com/yqvnqr
This thing is small! It came in a box that was 4" x 11" and weighs 3lbs according to UPS. I can see why they call it a FlowMonster! It says full OBD2 compliant. I will see if this is valid once it is installed. I doubt this thing will be much more restrictive than a resonator.
The best thing is hopefully no more CEL. I have been getting the good old P0420 even with the antifoulers installed.
Last edited by drucea; Aug 2, 2007 at 11:58 PM.
Joe ---
STS doesn't even allow Hi Flow cats per the current rules. You can run a Hi Flow in STX though (I usually beat that class in my region). Only thing is you will be running against WRX's and higher displacement N/A cars.
In STS you have to run an OE cat. However there is a suggested amendment that is currently being looked at by the rules board for the SCCA that will allow replacement cats in STS.....but not sure if they will ever allow Hi Flow. You WOULD be able to use the RRM DP with an OE cat and still run STS. You can modify the exhaust port to tip....just can't mess with the cat.
Just an FYI for ya.
STS doesn't even allow Hi Flow cats per the current rules. You can run a Hi Flow in STX though (I usually beat that class in my region). Only thing is you will be running against WRX's and higher displacement N/A cars.
In STS you have to run an OE cat. However there is a suggested amendment that is currently being looked at by the rules board for the SCCA that will allow replacement cats in STS.....but not sure if they will ever allow Hi Flow. You WOULD be able to use the RRM DP with an OE cat and still run STS. You can modify the exhaust port to tip....just can't mess with the cat.
Just an FYI for ya.
sounds like Joe is trying to have fun, since he is stretching the rules while trying to abide by them. some of the autox guys who don't try to accumulate points run as close as possible to their class without being run over. I ran in STS with only the UDP, it sucked. I would rather have run with the stock guys, I still would have lost but at least it would have been halfway fair (I was in the top third for stock, dead last in STS that day.)
If you are a competitor you should run with whatever class the rules state though, it sucks when you see guys out there that you know should be in a much higher class, or even running in the stock classes with obvious coilovers
and getting away with it.
If you are a competitor you should run with whatever class the rules state though, it sucks when you see guys out there that you know should be in a much higher class, or even running in the stock classes with obvious coilovers
and getting away with it.
^ you have to understand that the SCCA rules are written for national competition, and for cars that are fully prepped to the class.
Yes it sucks that one little mod will jump you a class, but it's the nature of the beast. Most people won't protest, but there are some whiners out there that will. Especially if you beat them.
Most people wouldn't consider what autox class a modification will put them in if they don't autox. Once you pick it up as a full time thing you do....then you start thinking differently.
Yes it sucks that one little mod will jump you a class, but it's the nature of the beast. Most people won't protest, but there are some whiners out there that will. Especially if you beat them.
Most people wouldn't consider what autox class a modification will put them in if they don't autox. Once you pick it up as a full time thing you do....then you start thinking differently.
D. Exhaust manifolds and headers may be replaced with alternate units which are emissions-legal. Relocation of the oxygen sensor on the header is permitted. Alternate oxygen sensors, including heated types, are permitted. This allowance does not permit relocation of the catalytic converter (see 13.10.E). Exhaust heat
shields may be modified the minimum amount necessary to accommodate allowed alternate exhaust components.
It says nothing about using a different catalytic, just as long as it remains in the same position!
Although I did notice this section:
G. Any accessory pulleys and belts of the same type (e.g., V-belt, serpentine) as standard may be used. This allowance applies to accessory pulleys only (e.g., alternator, water pump, power steering pump, and crankshaft drive pulleys). It does not allow replacement, modification, or substitution of pulleys, cogs, gears,
or belts which are part of cam, layshaft, or ignition drive or timing systems, etc. Any crankshaft damper or pulley may be used. SFI-rated dampers are recommended. Supercharged cars maynot change the effective diameter of any pulley which drives the supercharger.
So it looks like the crank pulley is OK to replace!
shields may be modified the minimum amount necessary to accommodate allowed alternate exhaust components.
It says nothing about using a different catalytic, just as long as it remains in the same position!
Although I did notice this section:
G. Any accessory pulleys and belts of the same type (e.g., V-belt, serpentine) as standard may be used. This allowance applies to accessory pulleys only (e.g., alternator, water pump, power steering pump, and crankshaft drive pulleys). It does not allow replacement, modification, or substitution of pulleys, cogs, gears,
or belts which are part of cam, layshaft, or ignition drive or timing systems, etc. Any crankshaft damper or pulley may be used. SFI-rated dampers are recommended. Supercharged cars maynot change the effective diameter of any pulley which drives the supercharger.
So it looks like the crank pulley is OK to replace!
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D. Exhaust manifolds and headers may be replaced with alternate units which are emissions-legal. Relocation of the oxygen sensor on the header is permitted. Alternate oxygen sensors, including heated types, are permitted. This allowance does not permit relocation of the catalytic converter (see 13.10.E). Exhaust heat
shields may be modified the minimum amount necessary to accommodate allowed alternate exhaust components.
It says nothing about using a different catalytic, just as long as it remains in the same position!
Although I did notice this section:
G. Any accessory pulleys and belts of the same type (e.g., V-belt, serpentine) as standard may be used. This allowance applies to accessory pulleys only (e.g., alternator, water pump, power steering pump, and crankshaft drive pulleys). It does not allow replacement, modification, or substitution of pulleys, cogs, gears,
or belts which are part of cam, layshaft, or ignition drive or timing systems, etc. Any crankshaft damper or pulley may be used. SFI-rated dampers are recommended. Supercharged cars maynot change the effective diameter of any pulley which drives the supercharger.
So it looks like the crank pulley is OK to replace!
shields may be modified the minimum amount necessary to accommodate allowed alternate exhaust components.
It says nothing about using a different catalytic, just as long as it remains in the same position!
Although I did notice this section:
G. Any accessory pulleys and belts of the same type (e.g., V-belt, serpentine) as standard may be used. This allowance applies to accessory pulleys only (e.g., alternator, water pump, power steering pump, and crankshaft drive pulleys). It does not allow replacement, modification, or substitution of pulleys, cogs, gears,
or belts which are part of cam, layshaft, or ignition drive or timing systems, etc. Any crankshaft damper or pulley may be used. SFI-rated dampers are recommended. Supercharged cars maynot change the effective diameter of any pulley which drives the supercharger.
So it looks like the crank pulley is OK to replace!
E2L,
i know what you mean man, when it becomes more than something to do for the weekend you have to get serious with the rules.
the regional here is pretty lax, even let a RHD old *** VW beetle that obviously wasn't going to pass any kind of tech(even cursory) to run, and place for a trophy(it was the only car in it's class
) I go about once a year, but haven't been this season. I placed last with STS once, and first another time. It just depends on whose got what done. the first place one I was running against like 5 others, two of which had suspension work done. the last place finish was against like 8, all of which were clearly STS prepped. It's fun, but you don't get to have much time on the course. that's the main reason I don't do it more
Joe...
Street Touring rules build on the Stock Rules, per this statement:
14. "Vehicles eligible for this category must meet the Stock category
eligibility requirements......All Solo Rules Stock Category allowances, plus all allowances contained in 14.1 through 14.10."
13.10 E. "Modifications of any type, including additions to or removal of,
the catalytic converters, thermal reactors, or any other pollution
control devices in the exhaust system are not allowed and the
system must be operable. Replacement catalytic converters must
be OE if the vehicle has not exceeded the five-year/50,000 mile
warranty period as mandated by the EPA. Converters must be of
the same type and size and used in the same location as the
original equipment converter(s). This does not allow for a high
performance unit."
As I said before, the cat rule in STS is currently being debated on the SCCA forums and there is a proposed amendment in front of the board now. So the rules can change, but who knows. Also, if it is not in the rules, doesn't mean it's necessarily legal. If you still have questions about this rule you can email the SCCA Nationals tech guy (Doug Gill: dgill at scca.com). They are real good at quickly responding.
Not trying to be a ***** here....I just don't want you to go and get protested by some wiener who you beat at the next autox.
Street Touring rules build on the Stock Rules, per this statement:
14. "Vehicles eligible for this category must meet the Stock category
eligibility requirements......All Solo Rules Stock Category allowances, plus all allowances contained in 14.1 through 14.10."
13.10 E. "Modifications of any type, including additions to or removal of,
the catalytic converters, thermal reactors, or any other pollution
control devices in the exhaust system are not allowed and the
system must be operable. Replacement catalytic converters must
be OE if the vehicle has not exceeded the five-year/50,000 mile
warranty period as mandated by the EPA. Converters must be of
the same type and size and used in the same location as the
original equipment converter(s). This does not allow for a high
performance unit."
As I said before, the cat rule in STS is currently being debated on the SCCA forums and there is a proposed amendment in front of the board now. So the rules can change, but who knows. Also, if it is not in the rules, doesn't mean it's necessarily legal. If you still have questions about this rule you can email the SCCA Nationals tech guy (Doug Gill: dgill at scca.com). They are real good at quickly responding.
Not trying to be a ***** here....I just don't want you to go and get protested by some wiener who you beat at the next autox.
Just kidding. Actually I looked a bit closer and this is what I found for STX:
High flow catalytic converters are allowed, but must attach within six inches of the original unit. Multiple catalytic converters may be replaced by a single unit. The inlet of the single replacement converter may be located no further downstream than 6" along the piping flow path from the original exit of the final OE converter.
It is actually the wifes car and she wanted something done so she was not in CSPL I believe. I race the EVO at the AutoX, it just sounds better when I started the post to say I was racing the RA.
If anything we should care less about the power mods and be more concerned with coiilovers/stickey tires/lighter wheels. These will buy more than any downpipe will in the AutoX.
It is actually the wifes car and she wanted something done so she was not in CSPL I believe. I race the EVO at the AutoX, it just sounds better when I started the post to say I was racing the RA.
If anything we should care less about the power mods and be more concerned with coiilovers/stickey tires/lighter wheels. These will buy more than any downpipe will in the AutoX.
She could run STX - Ladies with the HF cat.
The above statement I agree with most. Handling and tires 1st. Power second in autox.