Spec Twin?

[Shark_Bait88]

Originally Posted by Jshreiner

the way i interpret it is they want the individual part to weight a minimumof 18lbs. they also removed the material specification as well.

Considering the stock midpipe weighs 12.4lbs, I'm guessing that it's a combined weight of 18lbs not 18lbs/ea for a combined of 36lbs.

Otherwise everyone would have to go out and find a midpipe that's 6lbs heavier.

I also noticed that the material restriction was removed. Although it was still noted that exhaust tip material is unrestricted, which is weird.

[Twinz]

Originally Posted by Bitters

so 18 combined or 36 combined for the whole catback system?

The wording "both" -as opposed to "each" looks like the combined weight must be 18lbs or more. (I think the stock midpipe is well under 18lbs)

I think this is great news for us! They gave us more exhaust options while still trying to control costs with the weight requirement. -Glad I get to keep my 26lb Borla.

The clarification allowing spacers and studs was kind of expected, but I'm glad they made it official.

The news blurb on the SCCA website still shows 43 as minimum offset though. I hope they put it back to 40, to match the rules, at some point. Still the rules themselves are shaping up to make sense and I am now looking forward to the class more than ever with the blanks filled in.

[Bitters]

good catch on the midpipe weight. The material rule on tips is probably just a carry forward, so I wouldn't look too much into it given how often these rules are getting revised.

[iLuveKetchup]

Originally Posted by Ribface

How did the car feel? Any thoughts on the SSC package?

Originally Posted by Twinz

How did the car feel?

*edit* Same question posted while I was typing I guess.

The car was fun & performed great overall. Below are my take aways from the weekend. Take it with a grain of salt as I am a noob driver.

- Need more front grip. I was only able to get -2.2 front camber because of tire to strut clearance. Currently on +45 offset and another 5mm spacer will add some needed - camber.
- I ran with the front bar at stiff and rear bar at soft. The front bar needs to be at soft to get a little bit more rotation at Met Life. I prefer a loose car.
- The Nexens felt great on their first run. They seem to fall off with heat. I wasn't prepared and didn't bring a water sprayer. The tires were on fire.

I'm awaiting the Nameless muffler but will temporarily install an FT86 Speedfactory exhaust before this weekend's event. I won't have time to put in extended studs and spacers, so that will have to wait the following week.

[Hailwood]

I may have missed it in a previous update, but the rules now indicate that you must run the Tire Rack suspension package - no stock parts allowed. This is unfortunate because I was hoping to at least do a few events before I dropped another $2k on suspension parts, since my driving is what's going to be the limiting factor.

[strat61caster]

Originally Posted by Hailwood

I may have missed it in a previous update, but the rules now indicate that you must run the Tire Rack suspension package - no stock parts allowed. This is unfortunate because I was hoping to at least do a few events before I dropped another $2k on suspension parts, since my driving is what's going to be the limiting factor.

Eh, I doubt anyone would blink an eye at the local level, especially if you plan on doing those events this year before the class is 'real'

But without the lowering springs and the adjustable arms you're basically a DS car, just put yourself there.

[JakeRogue]

Still confused about the exhaust. Doesn't the stock exhaust weight 38 lbs? I'm assuming what they meant is that IF you change out your exhaust, 18lbs minimum for both the mid pipe and then your muffler/tips

[blkwrxwag]

Your combined midpipe/muffler must weigh => 18lbs.

There must be a resonator and a muffler - no straight pipes.

Pretty simple - don't overthink it.

[Twinz]

Originally Posted by blkwrxwag

Your combined midpipe/muffler must weigh => 18lbs.

There must be a resonator and a muffler - no straight pipes.

Pretty simple - don't overthink it.

I read the rules to mean that a pipe that goes from the cat to the rear exit point is a "track pipe" that's not allowed and that replacing both midpipe and muffler is allowed as long as the combined weight is 18lbs or more.

After reading a thread on another forum, it seems they actually intend to mandate the number and location of sound control devices after the cat.

I actually asked for clarification as to *why* we should care about such details when a minimum weight and standard sound limits are all we need to control cost and noise.

I actually think the whole "muffler here, midpipe with resonator there" is over thinking as a rule if cost and sound are what we want to control.

[blkwrxwag]

They don't want straight through pipes to be legal.

End of story - don't stick one on, and you won't have an issue.

[Imp]

Originally Posted by Locust

If I was going to spec class I'd wait until March to really buy everything

Good advice. Let those in power develop the rules to where they are clear enough to remove any ambiguity (like the exhaust rules that some people looking at it 2 different ways).


I agree with Max, it's combined 18lbs, but I can see how in trying to clear things up, they've added some confusion. WORDS!!!


--kC

[Twinz]

Originally Posted by blkwrxwag

They don't want straight through pipes to be legal.

End of story - don't stick one on, and you won't have an issue.

Like I said, I never thought a straight pipe from the cat to the exit was legal. There are "straight through" sections on every exhaust. (Unless somone makes an exhaust wigh a muffler that spans from the cat to the exit.) The sections between emissions and sound control devices are all "straight-through".

Are we going to protest the pipes that a competitor uses to connect his exhaust components to each other as "straight pipes?

Obviously not I hope.

My Borla has a huge honking muffler...that runs from the cat to where the muffler used to be. It has a muffler. It's not a "straight pipe"....but the muffler isn't located in the stock location and, here is the important part....the pipe *after* the muffler is straight through.

Maybe I should just call them "really long tips"?

I also think it would be nice to understand the reasoning behind the rule beyond "because I said so."

[strat61caster]

Originally Posted by Twinz

I also think it would be nice to understand the reasoning behind the rule beyond "because I said so."

Ok, now you've crossed the line



I think based on what I've read here the Works is still legal which would be a cheeky workaround.

"All exhaust gases must pass through two muffling devices, one in the mid pipe section, one in the muffler section, the muffler must be a minimum of 5" long."


Also prevents someone from making some crazy anaconda device in the OE muffler location and making the mid-pipe non-muffled to try and get more weight on the rear via saying "I've got two mufflers!"

[Shark_Bait88]

Originally Posted by strat61caster

Ok, now you've crossed the line



I think based on what I've read here the Works is still legal which would be a cheeky workaround.

"All exhaust gases must pass through two muffling devices, one in the mid pipe section, one in the muffler section, the muffler must be a minimum of 5" long."


Also prevents someone from making some crazy anaconda device in the OE muffler location and making the mid-pipe non-muffled to try and get more weight on the rear via saying "I've got two mufflers!"

I think the bolded portion is the part that would make the Works axleback illegal, since exhaust gases exiting the driver's side pipe/tip will not be routed through the muffler.