In following one of our ideals that our customers are the best source for new product ideas, we have been developing a Top Mount Intercooler (TMIC) for the 2.3L MZR engine. The original idea came from a thread on Mazdas247 started by azmavhockey3. The thread was started way back in August and was specifically put up to not only show us (CorkSport) that there was interest in this product, but also to get other users to input ideas and characteristics that they would like to see in a TMIC.
After getting feedback from numerous forum users we tested several designs of TMIC’s to see what would fit best with what the customer wants to see in a TMIC. The picture below shows one of our later iterations in the design and testing process.
After testing airflow, temperature, pressure, and heat soak characteristics of the above design as well as the stock design, we modified our design slightly and came up with our final version of the CorkSport TMIC. We will have a full write up on the performance and design characteristics of the TMIC posted before we release the part in late March.
Getting back to my reason for writing this: the origin of the idea. We recently revised our policies here so that when you submit a product idea through our website, we will periodically update you on the progress of your idea. If your idea is not right for us at the current time, we will inform you that your product idea submission is no longer being considered. If your product idea submission makes it to production, we will offer you the chance to test the beta version of the part (assuming both parties agree to the terms). This gives you the ability to not only say you came up with the idea, but also get the product before anyone else has the chance to buy one.
In the case of the TMIC, azmavhockey3 will be getting the final version of the TMIC a full month before anyone else because of his idea.
If you have an idea on how to improve this process or the product idea submission process, feel free to email me.
Now that our CorkSport Power Series Short Ram Intakes for the 2.3L DISI turbo-charged engines are 50-state legal (Press Release), I would like to revisit a past blog post as I think it is important for every car owner to understand.
A little over a year ago, we put a blog post on our webpage that outlined some of the laws and tips regarding your vehicle’s factory warranty and aftermarket parts you put on your vehicle. The Magnuson-Moss Warranty Act (US code – Title 15, Chapter 50, Section 2301-2312) was put in place to make it illegal for your dealer to void your warranty just because you put a non-OEM part on your vehicle (see SEMA Article). However, if you bring in your vehicle for a warranty claim, and it was obvious that the aftermarket part caused the issue, then you are out of luck.
The best way to avoid an issue is to have a good relationship with your dealer and to know in advance how accepting they are of vehicle modifications. Even though you have the law on your side, if they are not accepting of your vehicle modifications, you may want to find another dealer. No one wants to spend time dealing with a lawsuit or fighting over something that you can just as easily avoid in the first place. However, if you do run in to the unfortunate event where you believe that your dealer has wrongfully voided your warranty, you can contact the BBB Auto Line at 1-800-955-5100.
Please note that improper installation of any factory or non-factory parts that cause damage to your vehicle, are not covered under your warranty. Also, driving through water deep enough to cause water to be ingested into the engine will not be covered even with the factory intake installed.
If you have a specific question or concern about a CorkSport product, feel free to call us at 360-260-2675 or email and we will be happy to answer your questions.
There are a lot of factors that go into purchasing any part for your car, and a turbo inlet pipe is no different. With a wide variety of materials and configurations on the market, it can be a difficult decision.
I think the major discerning differences between metal and silicone are that silicone is an insulator, which is why there are claims that the silicone is a) quieter and b) less prone to heat soak. I’m not sure if a) is true to a consequential amount, haven’t done a dB comparison by any means…but I seriously doubt that b) is true either. All materials have thermal properties, all materials transmit thermal mass at different rates. You can deduce all sorts of theories as to how this effects the boost air temps, but I really doubt that there is any discernible power output or boost air temp difference between a silicone, aluminum or stainless inlet pipe from one pull to the next. These vehicles push enough air to fill an office cubicle through that pipe in the span of under a minute. Then they run that air into a turbocharger that superheats the air. It takes 3 degrees of inlet air temperature change to result in one degree of boost air temperature change with a stock intercooler based on thermocouple datalogging that I’ve done on a number of different cars (Speed6’s and 3’s). With air traveling through a tube at insane velocities (like lets say…60 meters per second…or better yet 134 miles per hour), I find it hard to believe that there is any major detriment to having the turbo inlet pipe made of a more thermally conductive material than another.
The reason you buy the pipe is so you get rid of the stock pipe, which sports an oh so stylish, effectively square profile that changes cross sectional area erratically and is made of plastic which is also pretty thermally benign. But that’s not where the power or quickening of spool up happens when you add the inlet -it’s the flow of the air and the smooth transition from the intake to your turbo that you want to optimize. Simple as that.
If it were my car, I’d get one that a) works reliably, b) has quality construction and c) has a reasonable price tag. I can’t point out any on the market that fail a) or b)…all are excellent from what I have seen. Ours is ~$120….because designing and manufacturing any piece of tubing and/or silicone doesn’t cost much. Period. It’s a pipe. Every turbo inlet pipe on the market is a pipe -with three pipes in factory locations connecting into it. A few have factory like brackets that attach to the valvecover, some don’t. Some are aluminum (CorkSport and RPMC), some are stainless (Protege Garage), some are silicone. They all do the same thing.
Our system certainly gives you a few options that you should be familiar with when purchasing . But the first thing to remark on is -our intake includes these parts. If you’re in the market for an intake, this information is of benefit to you, but if you really want a good deal on all of these bits, grab our Power Series Short Ram Intake for your MS3 or MS6 or CX-7.
So back to the configurable differences if you already own an intake and want to get a turbo inlet pipe to match. Our turbo inlet pipes have a few toggles: Valvecover breather (yes/no) and Recirculation Valve Port (yes/no). The valvecover breather is almost completely unnecessary if you have an aftermarket intake that is not made by us -as most intakes include this provision in the CAI pipe or the coupler. So that’s almost always going to be a ‘no’ unless there’s some other reason why you want an external intake vacuum source to plug into (catch can, etc). The other is the recirculation valve. If you have chosen to do a strictly vent to atmosphere configuration on your bypass valve (not necessarily recommended), you can choose this option and clean up your engine bay a bit.
The final dial on these is the silicone color – for the silicone coupler between the turbo and inlet pipe, as well as the valvecover breather and boost control solenoid lines. These are available in Red, Blue and Black. Finally, in the near future we will be offering one or more powdercoating options starting with black.
Last Saturday at our CorkSport Swap Meet, we had a great turnout for the Dyno Testing. With 16 people signing up ahead of time and 5 signing up on site, we got some great runs in from a diverse group of participants. We even felt sorry for a handful of non-Mazdas and let them participate as well!
High horsepower of the day was Jason O’Neill with his ’01 Miata. Jay’s car made 393hp to the rear wheels with a brutal 368 ft lb of torque. A week earlier he had the motor out to diagnose some issues with the variable valve timing as well as try to get the head into the shop for new valve guides and seals and couldn’t make it in time so he threw it back in just to drive down to the event on a set of beefy drag radials. Later in the evening he ran an 11.51 at 124mph out at Portland International Raceway. Brutal. I’ll say this much, when a lightweight little Miata pushing 400+hp (it was uncharacteristically chilly out Saturday night) on a cold track makes a 1.6 second reaction time, it’s driver has had some practice. Hats off to Jay for his awesome car and sticky launch skills.
Close behind was an LS2 powered FD RX-7 that was unbelievably clean. The install was gorgeous, with little over 1000 miles on the clock since the swap, and the powerband was equally beautiful. Dropping an Earth shaking 300ft lb of torque at 1600RPM and following that up with a 45 degree horsepower curve topping out at 376hp, this car would be more adrenaline pumping fun than a barrel of monkeys in an AK-47 factory. And the owner’s passion for Mazdas goes way back…he bought an FD off the lot new in ’93 as well. While purists will wince at the addition of Chevy Power to one of the crown jewels of Mazda’s Rotary history, I would guess anyone who saw the meticulous install and the owners passion for making this an all around amazing car would give it a thumbs up. The drivetrain wasn’t the only amazing thing about the car – the suspension and bodywork were phenomenal as well.
We had a pair of Speed3’s and a Speed6 on the dyno as well, with high HP numbers in the high 260’s and high torque numbers in the high 290’s. The dyno runs on these cars are all over the map, preferencing torque on one run, horsepower on the next. One car ran 257HP w/ 296ft lb followed by a run of 269HP w/ 282ft lb. And I always thought the less the driver could effect the run the more consistent the output would be – not so with the MZR 2.3 DISI powered sedans.
The rest of the pool consisted of two FS Powered Mazdaspeed Protégés, a BP Turbo Powered Protégé, Four Miata’s and two eardrum scalding FB RX-7’s that both gave the LS2 a run for its money for smoothest powerband.
All in all it was a great day, and we had some good opportunities to talk shop and discuss opportunities for more power. The Seattle area group from MazdasNW.com came down and were able to meet up with more of the folks on the forum who are from the Portland Area. All in all, it became clear that a lot of these Mazda enthusiasts are hungry for opportunities to spend time discussing their wrenching projects and spending time with like-minded people. I look forward to future opportunities like this. Thanks again for everyone who came out to the event…without such great participation, none of us would have had as much fun as we did.
P.S. If you have video of your car on our Dyno during the CorkSport Dyno Day and it’s not included in the above video playlist, fire over a copy for me and we’ll add it! Sorry for not getting all of the cars on video, I had a few different hats I was wearing and wasn’t able to get them all.
Just a quick update as to what we’ve been working on our here at the shop.
I built an air box for our short ram intake for you MazdaSpeed 6 and the MazdaSpeed 3 guys. I built it as a full box but with a removable top so the air filter can be easily removed for cleaning. The use of the air box will help keep hot engine bay temperatures from entering your intake system. In my preliminary testing, a 2 to 4 degree drop in intake air temperature at cruising speeds was measured with the air box installed versus not being installed. Hope that those of you that end up purchasing it, enjoy it!
Here are a couple of pictures of what it looks like installed in a MazdaSpeed 6:
And here is a couple shots of what it looks like in a MazdaSpeed 3:
That’s all for now, tune in next time for more updates from the shop!
