Cal Club Autocross Forums

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No its still on the car, just had to add a second muffler to be at 92db at 50ft.

Kinda stuck with packaging on this car not a whole lot of muffler I can fit in the center tube.

I ran the old HP2 on my Yaris and it was stupid loud and the new mufflers any better?

I wouldn't consider a built stock motor an issue, unless you have some crazy PTW and ring end gaps, just make sure the car is nice and hot before you attempt to smog it. Yeah basically, get the car to pass smog first, and make sure it has insurance, once that's done head to the DMV for the actual re...

None of the guys I know who changed from Michigan to Cali plates have had anything more than a smog check with the referee. The changed engine is gonna be a bit complicated as there are quite a few rules you need to follow regarding that. If its a swapped car ie Civic with a Acura motor or a RX7 wit...

Keep the glasspacks, chambered mufflers are quite a bit more restrictive.

Seeing as you still have cats on your car I can't see a more restrictive muffler helping anything.

Side mount for life

George on the vapor restriction, I'd be willing to bet dollars to donuts that Lakewood preemptively limited use to what will eventually be a nationwide thing. The houses at the Great Park it was a done deal once Fivepoints ponied up the money to build the park itself. Remember it all still have to g...

Max Hayter wrote:STF is softer than HSR though - figure that!!!

Just like STR is softer than BSR ;)

http://home.comcast.net/~paxrtp/rtp2014.html


Looks like STF took a big hit with the .006 jump.

Just for reference
2013 Solo National Championship
STC = 25
STF = 24
STS = 20

2013 SD National Tour
STC = 9
STF = 9
STS = 5

I feel your pain Grant. I would put a vote on building it as a project, but if it isn't in the cards...With that being said a good build can net some extra power, fuel economy, better emissions, and driveability. The engine in my Mustang just passed smog yesterday all while making quite a bit more p...

Toby Larsson wrote: I remember Dennis....

This is a good place to learn and ask questions
http://www.eng-tips.com/threadminder.cfm?pid=800&page=1" onclick="window.open(this.href);return false;

Sounds like there's a story there. Andy Hollis seemed to think his Bilstein compression mod was worth doing.

Steve I'm not exactly sure what shocks I have since they are H&R Bilsteins, I know Bilstein has worked on them in the past but beyond that I'm not sure. They did stamp a number into the rear shocks but I didn't mark it down, I do know the shocks are sealed so there very difficult to work on with...

the mustang would have to be faster than cp with street tires to really compete. Start with a sts/str Miata s2000 or stcivic or crx and put wider tires and add power as needed.

What's involved with tech chief?

When the guy was showing me the numbers he was looking at optimal ride and handling on the sine wave as to not go too deep into over-damped territory. The engineer works primarily with off-road vehicles and MR shocks so on road stuff isn't his expertise. I'm guessing what we estimated for tire sprin...

I have no intention for using any valving numbers I come up with, suspension tuning is very much a mystery to me. This question sort of started because of a conversation I had with a shock engineer I work with. He plugged my car into Matlab and came up with some very basic numbers that didn't quite ...

I would pay money to see Ferrari doing AutoX testing.

Most of what I've been looking at is with ST class cars. Not all of them are McPherson so not directly comparable, but the compression and rebound numbers are way higher that what should be required for critical damping. With the rates Bilstein chose for me, it seems to follow the 65% critical dampi...

I'm doing the math to figure out ideal shock damping rates, and its becoming a bit confusing. My ideal rate puts me at about 19lb in/sec at one corner, but that seems to be a bit at odds over what I've heard fast people run. My current shock rates are already way above that, so I'm having a hard tim...

How many dates do we expect to have at El Toro including the ProSolo weekend?

That area is already bad enough with traffic. I can't imagine how bad it'll be after another 13k people move in.

I don't know why I feel this is appropriate