How We Tweaked Our Mazda Suspension

One great thing about racing is that you always keep tweaking the car to see how you can make it better. Each track presents a different challenge and setup requirements to keep you on your toes.

Derrick Racing for CorkSport at SCCA

We’ve been developing our SCCA Touring 4 (T4) class 2015 Mazda 3 into a viable competitor, and we recently got the final piece we needed to make it a strong candidate in Indianapolis this year for the SCCA National Championship Runoffs. That final piece was a limited slip differential.

CorkSport Limited Slip Differential

A limited differential helps with traction, but it changes the handling characteristics of the car when you install it. We entered the SCCA Majors event at Auto Club Speedway in Fontana, California, to see how the car would do with the new differential. The biggest change was the handling; it was tight which means the car wanted to understeer. The car’s existing setup for ride height, toe, and camber would need to be adjusted to help remove the imbalance we had created.

The first thing we changed in the car was the ride height. Some concerns were brought up during discussions with Kenton Koch, our driving coach for the weekend (and a championship driver in several series). He pointed out this was one of the easiest changes to make on the fly. One thing to note: When you change anything, you need to make sure your change did not move something else. Once we had raised the car up half an inch, we took a look at the toe and camber settings. In this case, the car was right where we wanted it, so we headed out to try the new settings along with a 5psi bump in rear tire pressure.

The changes yielded a big boost in performance. We went from 2:02 around the track to 1:58, and moved up during the race from sixth to third. The car was fairly neutral around the track, but we still were not getting any oversteer. We opted to raise the rear of the car another full turn on the springs to see if we could get the change we were looking for. Another check of the rear toe settings after the change showed the new setup was good.

CorkSport at SCCA

That last turn did the trick in regards to oversteer. There was a hairpin corner where the car would oversteer too much, and it required lots of counter steering to stay pointed in the right direction without looping the car. Creating rake in the car was counter to advice we had gotten from the manufacturer of the suspension we are running. Sometimes going against the grain of what everyone else is doing can lead to some good discoveries and lessons learned.

We are already working on a new list of things to try for the next event and the opportunity to make our Mazda 3 a championship-winning car for Indy.

Derrick

Meet Derrick from CorkSport. Loves racing, Mazdas, and his CS fam.

CorkSport’s Performance Race Industry Show Recap

CorkSport at PRI

In the car game, there are two big shows each year where all the action happens: the Specialty Equipment Manufacturers Association (SEMA) and Performance Race Industry (aka PRI). At these events, automotive parts companies flaunt their accomplishments, showing off their latest and greatest mods and parts, while everyone gets a chance to network, catch up, and just generally ogle and chat about gorgeous vehicles. We here at CorkSport love to keep up on what’s hot and new in the automotive industry, so this year we headed to Indianapolis for PRI to see what auto trends are being developed.

First Impressions

CorkSport at PRI

As we first entered the convention center, the stage was set. The picture above features the main PRI banner, which prominently displays some dirt mod cars. That can only mean one thing: PRI would be showcasing a lot of American muscle and, probably, not a lot of imports. Regardless, we braved the show.

The Cars, The Parts, The Highlights

Wandering the aisles of the show, our suspicions were confirmed. PRI had more American muscle than the lineup of cars Vin Diesel will drive in the next “Fast & Furious” movie. But, as we navigated the aisles, we were greeted by a sight for sore eyes — an import you can never go wrong with — a Le Mans-winning P1 car.

Corksport at PRI Mazda

When it comes to performance cars, it doesn’t matter if the car is an import or a domestic, one good thing about them is turbos. Good news from the show is that it looks like Garrett doesn’t have any plans slow down on their production of turbos anytime soon, for themselves or for the Mazdaspeed 3. They had some great tech on display, which is never a bad thing. Feast your eyes on these beauties.

CorkSport at PRI - NP01

Next, we came across a nice surprise in the NASA booth — a paint scheme that any Mazda enthusiast should know. The NP01 is more than just rad-looking, it’s powered by the 2.0 MZR motor and a large selection of other drivetrain parts making it very affordable when it comes to cost to own and cost to race. If you’re in the market for a race vehicle and cannot afford one of the Lola/Multimatic-built Mazda Prototypes that Speedsource is selling, the NP01 is a great alternative.

CorkSport at PRI

Finally, there was one big wow part we have to tell you about. Check out this crazy, billet Duramax Chevy motor.

Corksport at PRI DX600 Billet Duramax

The DX600 Billet Duramax is a supercharged compound turbo setup. Looking for a billet aluminum block for your Chevy truck? We know you Mazda fanatics probably aren’t, but this is really freakin’ sweet piece of hardware regardless. Now, if only we could get someone to make a billet engine for the Mazdaspeed 3. Then life would be really sweet.

Hope you all enjoyed this PRI update as much as we enjoyed checking out cars and parts at the show. As always, at CorkSport we strive to keep you all apprised of the new and interesting car news you crave. Follow us on Facebook, Twitter, and Instagram for our latest news.

CorkSport Joins Christmas Toy Drive 2016

A couple of weeks ago, CorkSport was contacted about a toy drive put together by a local car group called Tuner Coalition. They had heard about a group of kids at a local hospital that had hardly ever experienced a true Christmas. CorkSport loves to give back to the community, so we wanted to make some kids super happy this holiday season.

We all know that Christmas is about giving, so that’s what we did. I learned there is no better feeling than knowing your contribution will make a world of difference in someone’s life. That is our main goal here at CorkSport. We strive everyday to help our customers meet their goals and enjoy their modifications. It’s all about bringing happiness to others. And just look at how happy these kids will be.


This was not only a toy drive, but also a car meet. I brought my Mazdaspeed, and there was a first generation Mazda 3 that had some cool exterior upgrades. I also had the pleasure of meeting some really cool people. Even though we drove different cars, we were there for the same reason and shared the same passion for cars.

I had the pleasure of talking to a guy that owned an Ecoboost Mustang. He had a lethal performance turbo kit installed on the cusp of making 500whp. Needless to say, his engine bay was really clean; it had been meticulously hydro-dipped by a friend of his. I always liked the Ecoboost Mustang for its indirect relationship with Mazdaspeeds. The car definitely looked cool, and drew a lot of attention. He was a very humble guy and only had nice things to say about the my Mazdaspeed. He saw the front mount intercooler on my car and instantly had to know what was under the hood.

CorkSport loves to be a part of these types of events, and we encourage anyone to participate as well. We are here to help our community in any way possible. We would love to hear about some of your holiday car meets, and any kind of fundraisers you may have attended this holiday season! Get in touch with us on Facebook and Twitter to share your mods and stories.

Cheers,

Luke

Daytona International Speedway and a Mazda 3

Daytona International Raceway Track Map

Most people think Nascar when they hear about Daytona International Speedway. To road course guys like me, it’s the site of a 24-hour race, which we wait for every year in January. This past year, I participated in the SCCA Majors to qualify to run two different classes at the Runoffs, which were hosted at the Daytona Intl. Speedway.

My normal racetrack chariot is a 2011 Mazda 2 B-Spec, which I’ve raced for the past 4 years.

corksport-mazda-2-race-car
Derrick’s 2011 Mazda 2 B-Spec from Daytona coming out of turn 3.

I’ve been quietly building a 2015 Mazda 3 Sedan with a 2.5 engine to run in the SCCA T-4 class starting late in the season this year with the purpose of running it at Daytona. We picked up the car from getting the cage installed and had nine days to get all of the parts installed, get it dyno tuned for 98 octane, and load it up into a trailer to go to Daytona via Mazda Raceway Laguna Seca. There’s nothing like taking a completely unsorted car to a national championship race on the other side of the country, just for fun.

At the Pirelli World Challenge race weekend at Mazda Raceway, the CorkSport Mazda 2 was piloted by Joey Jordan and swept the three races for a perfect weekend. In between the Mazda 2 getting serviced, we worked on the Mazda 3, getting the sound deadener removed, seat mounted, and safety gear installed. We also changed the springs installed on the car to CorkSport’s 2014+ Mazda 3 springs to make the ride height lower. At Daytona, you want less aero drag because of the low profile, so having the car as low as you can get it helps the speed on the oval section.

After the last race was finished up at Pirelli, we loaded up both Mazdas and headed to Daytona, which is a 44-hour drive across the country.

We arrived at Daytona on Friday to do some final setup on the Mazda 2 and finish the prep work on the Mazda 3 before our test day on Saturday.

corksport-mazda-3-race-car

I’ve raced at Autoclub speedway in Fontana California before, so I was familiar with a banked track but not quite as familiar with that long of a time on the track.

In the Mazda 2, I found myself looking around at the scenery a lot during the Saturday test day. The infield was fun to find the limits on the car and mastering the bus stop with a quick hit of the brake then back on the gas was a big challenge for me.

In the Mazda 3 on Sunday, I got a reminder of what a new car can be like while getting everything dialed in. I had massive understeer with the car and had to modulate the throttle constantly to get the car to turn. On the straight sections, the car was fast and I could hang with most of the cars out there if I got enough of a run out of the corners. To give you an idea of how much faster the Mazda 3 was at the time trap, the fastest draft time I got with the Mazda 2 was 119mph. In the Mazda 3, it was 139mph. This was before you head into a turn and slow down in the shortest possible space before busting a quick left into the infield. If you get it wrong, the guys behind you made up time on you. If you get it right, you can get more of a lead.

Another huge problem I had with the Mazda 3 was I couldn’t see anything out of the left side of the car. The window size is pretty small, the window net didn’t help, and the massive left mirror did its best to keep me from seeing the apex or the other cars.

I qualified for the championship race 15th out of 22 cars, which isn’t great, but it’s not the back of the field. I was four seconds off the pace of the pole sitting Honda Civic, which gives you an idea of how well sorted that car was in comparison to the Mazda 3 in its first weekend at the track.

corksport-mazda-3-racing-daytona

Honestly, the T-4 started off pretty crappy for me. I got jumped on the start and was forced to the outside of turn 1 where I couldn’t judge the car next to me going through the corner, so I lost a spot. Two laps later, I got to watch Scotty White in his Mustang get turned into by a RSX right in front of me going into the bus stop, which made for some great front row entertainment. Toss in a few dive bombs by a Camaro and it made for a good time. I spent the rest of the race trying to be as nice to my front left tire in the infield as I could.

corksport-mazda-3-daytona-track-race

In the end, I finished in 15th, which is the exact spot I started the race in! For this upcoming season, we’ll work on the suspension setup to improve the car’s cornering speeds to be more competitive and work on the driver setup.

I have to give a big thanks to CorkSport for the parts installed on the Mazda 3, which worked flawlessly, Joey Jordan Motorsports for the spotting and chassis setup at the track, Joe at Dynotronics for the 98 octane Skyactiv Tune in a super short period of time, Monarch Inspections for letting us steal your worker bee to drive the truck across the country, 47 Moto for the wrench help, Mazdaspeed Motorsports for being the best vehicle manufacturer that supports club racing, and my wife and kids for putting up with me running off to chase my dreams.

Meet Derrick from CorkSport. Loves racing, Mazdas, and his CS fam.

NATOR OR BBQ and Dyno Day

As some of you may know already, CorkSport HQ made the move to a much larger and more functional building in January 2014. I think we can all agree that moving sucks and basically consumes your life for at least the month before and after the actual move. Well, I’m here to tell you it’s a hundred times worse when you are trying to move a business while still “keeping the doors open”. In the chaos of moving and getting the new location setup just right it’s easy to forget about the little yet important activities. So what better way to get back in the groove than a BBQ and Dyno Day to support the local community!

July 18th was the big day with 15 cars scheduled to get on the dyno, and another 35-45 cars planning to show up to watch the numbers! With everything set up and the burgers and dogs grilling away, people started to roll in by 12:30pm. The first car got on the dyno and the show began.

Dyno Testing Day

First, a bit about our dyno; it’s nicknamed “The Heartbreaker,” and oh so many hearts has it broken. The Tq/Hp curves look good, but it just reads low numbers. For example, a stock Mazdaspeed3 puts down a sad 190whp. Anyway, amongst the 15 Speed3s that planned to hit the dyno the mods varied from nearly stock to big turbo builds with lots of meth. There were quite a few Speeds in the 200-250whp range with a nice assortment of bolt-ons, a couple cars running a BNR or CS turbo in the 295-320whp range and then there is Justin England: a local out of Washington rocking a built block, GTX3071r at 34psi and tons of meth. He put down a very respectable 400wHp/365wTq on the heartbreaker dyno.

More Mazda Dyno Testing

Just to give you another reference point, we threw a 07’ Corvette on the dyno that also has high flow cylinder heads, intake & exhaust manifold, performance camshaft, and full exhaust system. He put down a mere 420wHp/380wTq…yup. Anyways, enough about our depressing dyno!

Along with the constant roar of WOT pulls there was plenty of food and drinks and even a raffle thanks to a handful of sponsors: Tuned by Nishan, Justin at Freektune, Damond Motorsports, James Barone Racing, and CorkSport.

Check out the images below!

Mazda BBQ 1

Hot Pink Mazda Miata

Yes, that’s a pink Miata with a V8 that’s a daily driver drift car…it’s basically badass.

Dyno Testing a Mazda

Mazda BBQ 2

Mazda BBQ 3

All-in-all it was great day! We had a blast, put down some numbers, and stuffed our bellies. What more can you ask for?! Big thanks to all the NATOR OR members and CS employees that made this day possible and to the sponsors that donated items for the raffle! This is what makes the Mazda community so great!

 

Cheers,

Barett

Barett Strecker-01