Your Basic '07 Sleeper

A couple of months back joined the forums, starting to put some time and money into my genone. Had a shop do a bunch of stuff: replace a leaky K04 with a CST4, add Corksport downpipe and cat pipe. (OEM exhaust back from there.) Had a fun day at the track, but the car was held back by the OEM cold air intake. It was better than the factory one, but still restrictive.

Today I got access to a place to work on my car, first time in more than 10 years. That was fun. I put in a Corksport rear sway bar, and their beefy stage 2 rear motor mount. Great fun to have a place to mess with cars again, and nice to see the car really change in one day.

Next up will be replacing that intake, and the battery box to allow room for the new bigger intake. And of course a revised tune to at least calibrate the MAF sensor for the new air coming in. Should make her go faster with that CST4 able to breathe.

From there, I'm not sure. If anyone has suggestions, that would be helpful. Are front sway bars worth it? A better TMIC? I'm not aiming for huge horsepower. It's pretty insane as is. And I'm dreading when my wife hears the NVH from the new motor mount.

 

So a big couple of days: wrestled in a 4" Corksport intake. Having good impact tools saved the day for sure. I had little trouble disassembling everything, but when I started putting the new stuff back on I had some snags. The CS instructions were good, so I was stumped when I couldn't figure out how to get 4" inlet pipe onto the silicone coupler at the turbo. Turns out they included the wrong t-bolt hose clamp. They promised to send one out right away, but it's still in transit two days later. There is a good fastener company in Seattle (Tacoma Screw), so I was able to get my own 4" stainless t-bolt clamp the next morning. Two of the stock hoses also wouldn't reach to the new inlet pipe: the EBCS vacuum line, and the BPV return line. Stupid Autozone doesn't train their people, so they literally did not know that they had parts that would work. I rounded up the hoses, and it was all good.

Anyway, got it all installed and it started up. Initially had a throttle position warning light, but I rechecked and adjusted the new parts to make sure there was clearance, and it ran just great. Light cleared itself.

This is all the more fascinating to me because this is my first work I've done on the car that required a tune. One tuner told me the 4" intake was so out of size for my CST4 that it would never idle properly. (Corksport says they ran it with a K04 during development.) It, in fact, idles fine. So with the whole thing being pretty free flowing: intake-turbo-downpipe-highflow cat, it's a monster just on the base tune. I went with Freektune, and am pretty happy just with his first pass.

Photo shows the final state with the CS 51R battery box. What I can't figure out is where to stick the fuel injector relay, which needs plenty of room to breathe. It won't fit in the space between the battery box and the intake, because there is basically none. Anyone know?

 

And yesterday my wife drove the Mazda for the first time since I put in the new rear motor mount. She really hates the vibrations and rattles. So I am sorry to say I just ordered a replacement stock OEM one, and will need to pull out the nice Corksport one. If anyone needs a good solid rear motor mount for a genone, let me know. Cheap, really really cheap.

 

you ever get it sold lmao ill buy it if you haven't.

 

Try the rear motor mount for the electric focus. It's bolt in and is an upgrade while seemingly being unnoticeable to people who care about vibrations

You also need to put about 250 miles on a mount for it to settle down

 

Dude keep the cs mount and just drive it until it settles down

 

Yeah, I was planning it to drive it until the mount settled down, and keep my wife out of the car during the break-in period. I did keep her out of it. And it did settle down, a lot. But after more than 1,000 miles, it's as settled as its going to get. And she is livid. I care more about my marriage than any car, so back to stock I go. It's fine.

In other news, I'm on the third round with Freaktune, and the car is really fast and fun. And I'm really enjoying having a place to work on the car, so I can do mostly everything myself.

 

What's she so mad about? Just tell her your toys vibrate like hers do

 

Seriously get the focus mount it's only like $40

 

I will try the Focus mount. Good idea. But to make peace at home I will put a stock one back in. This pains me as I really enjoyed the thing without all the torque steer, especially with the big power boost from the intake/turbo/exhaust upgrades.

 

Just tell her you put the sticker in and you don't know why it didn't get better

 

I put a new OEM one in yesterday, all better. I still plan to try that Focus mount. I am missing one bolt for the OEM upper mount. Anybody know the spec on that M12 X 1.75 40mm? I put two in from the CS mount, but I guess I tossed the third one along the way. I will happily connect anybody with that nice CS V2 Rear Motor Mount if you have a need for it.

 

lmk how much you're wanting out of it im down to buy it

 

Just to remind our new members here of one key rule we have:
Buying and selling for Metal Members ONLY. Click the link up top to donate and become a Metal Member. Only Silver, Gold, and Platinum Members are allowed to sell here.

 

^ Dont forget the strict rules on signage (being required) and not selling in PMs as well.

 

I did not know about the rules, so thanks for letting me know. I'll happily pay to be a member, even if I don't buy or sell. It's worth it to me just to be around a bunch of other people who spend too much time and money on these Mazdas.

 

How do you like the CST4? Im also considering it for my bone stock 2007 with160k miles.

does FreakTune's fee of $300 include multiple passes?

 

Dude, sorry, I didn't see this until now. Yes, Freaktune is multiple passes. He's very thorough.

I like the CST4 just fine. It's plenty of power for me. If you really want to go for much bigger power, then it's not enough. But then you are talking about upgraded fuel capacity, which I was not willing to consider.

Just bear in mind that with any new turbo, you will really want improvements on both sides of the turbo--a bigger intake and bigger downpipe and high-flow cat. The investment is worth it, because the car becomes an absolute beast with all that.

 

No worries my friend.

Are you saying that while I'm doing the turbo I really should/must do the downpipe/cat? I really didn't wanna spend that much $ on this old car. I suppose the Mazdaspeed CAI is also too small with CST4?

did you injector seals end up leaking?

 

You don't need it and honestly if your just looking for a bump in power swapping the turbo is the best approach all of the other mods are efficiency mods but you would spend more money than just getting a turbo