Spec Twin?

[JakeRogue]

so my Greddy Catback that my girlfriend got me should be legal right? Just making sure...

[chucky12012]

Originally Posted by cjd

You can get stock length ARP studs.

Running a 5mm spacer for SSC means you'd need the extended studs. I'd expect they are legal, as it is simply a maintenance need, but given some of the rules, I'll keep my expectations in check.

[Twinz]

Originally Posted by chucky12012

Running a 5mm spacer for SSC means you'd need the extended studs. I'd expect they are legal, as it is simply a maintenance need, but given some of the rules, I'll keep my expectations in check.

They should clarify the rules to say they are allowed, but if someone protests studs.....damn that would be sad.

They should just copy/paste the street class verbiage on spacers and studs.

[Ribface]

Look like rules have been updated. 10-02

I noticed 2 changes:

- Offset range (mm): +40 to +48 (+40ET to +48ET)
- The installation of oil catch tanks or oil separators is allowed provided the function of the PCV system
remains functional.

/Edit just saw Shark_Bait88 post on the previous page on the offset update

[Twinz]

So, I just put a scope down the stock midpipe and confirmed that the resonator is a straight-through design. Since the rules use the word "baffled" when referring to replacing it, it seems their definition of baffled includes straight-through designs. (Unless they are mandating that a stock part replacement be functionally different than the OEM part..which seems unlikely)

I still think the cars are quiet enough for a single resonator, but is seems that we basically just need a resonator when we replace each part. - 2 total (And the muffler replacement needs to be a certain length)

[blkwrxwag]

Yeah, I wouldn't be surprised to see further updates to the rules as these things are hashed out.

[Twinz]

Lol. The ad software here is getting really good. Bottom of my page shows the Enkei "Kojin 17x8 40mm inset 5x100..."

[2superblus]

Basically for the exhaust rule currently the midpipe needs to be resonated and the muffler section needs to have a muffler. There is talk of not allowing homebrew exhausts/

[Ribface]

Is there any value for us to have an oil catch tank or is that just added weight?

[Locust]

Originally Posted by Ribface

Is there any value for us to have an oil catch tank or is that just added weight?

There's always value in a catch-can for stability sake but in a street level class it's not a huge need. It won't make you go faster if that's what you're asking.

[bholliday]

Originally Posted by 2superblus

Basically for the exhaust rule currently the midpipe needs to be resonated and the muffler section needs to have a muffler. There is talk of not allowing homebrew exhausts/

Assuming the above is true, does anybody know the reasoning behind allowing a track pipe w/ a 5" muffler (6 lbs per Nameless) and not allowing a track pipe w/o a muffler (3 lbs per Nameless). Since the weight difference is very small, it is hard to believe that weight is the reason. I also don't see noise as a reason either, since the track pipes are not loud. What other reason would there be?

[Shark_Bait88]

Originally Posted by bholliday

Assuming the above is true, does anybody know the reasoning behind allowing a track pipe w/ a 5" muffler (6 lbs per Nameless) and not allowing a track pipe w/o a muffler (3 lbs per Nameless). Since the weight difference is very small, it is hard to believe that weight is the reason. I also don't see noise as a reason either, since the track pipes are not loud. What other reason would there be?

I think that specific product falls into a grey area, it meets the muffler requirement but not the "no track pipes" rule. It's a matter of which rule trumps which. I'd be inclined to guess that they'd rule it as illegal, since the product is specifically called a "track pipe." But that certainly requires clarification.

[Twinz]

They put the offset bact to 40mm in the rules. (Which is great) but the blurb on the SCCA website has not been put back to 40mm yet. I hope they update soon.

Also, I noticed TR updated their SSC wheel offerings with a 17.0lb OZ wheel and the NT03RR at 17.15lbs.

[Shark_Bait88]

Originally Posted by Twinz

They put the offset bact to 40mm in the rules. (Which is great) but the blurb on the SCCA website has not been put back to 40mm yet. I hope they update soon.

Also, I noticed TR updated their SSC wheel offerings with a 17.0lb OZ wheel and the NT03RR at 17.15lbs.

I really wish the NT03RR was cheaper. I think it's a great looking wheel. Although I wish the offset was lower too.