MKTurbo Black Friday 2025 Sales Thread
Thread Starter
Joined: May 2006
Posts: 15,235
Total Cats: 1,700
From: Charleston SC
Thread Starter
Joined: May 2006
Posts: 15,235
Total Cats: 1,700
From: Charleston SC
I did find someone wanting to trade a mini truck for a miata on CL. I seriously thought about it, but decided to pass. Mostly because I am not sure what I would use a mini truck for besides the lolz.
Already on my list of things to do. I just need to pick up a few carbide bits for my Dremel and have a nice enough weather to do it. I talked to nigelt and how he ported his.
Don't go too far toward the pivot arm with the hole or the flapper puck can hang on the hole. The hole does not need to be round. It can be D shaped.
Thread Starter
Joined: May 2006
Posts: 15,235
Total Cats: 1,700
From: Charleston SC
fitment on this kit is PERFECT, the cx racing intercooler kit... not so much. still have to drill and tap the oil pan, run the oil feed, wire in the iat sensor, and fix my stripped spark plug and ill be good to go.
Joined: Aug 2014
Posts: 1,462
Total Cats: 389
From: Bainbridge Island, WA
For everyone getting their kits and doing their porting, I've been asked a few times how I did mine. I looked back and it looks like I was inconsiderate and didn't take pictures of the completed port job. However, the picture below shows everything you need to know about my port job. I put chalk on the flapper and closed it a few times to leave a chalk outline of the flapper. I outlined that with sharpie, then set to work.

Sharpie line is where the outline of the flapper. Red line is approximately where I cut out.
The only thing I did was enlarge the hole, leaving about a 2mm rim all the way around to make a good seal with the flapper. I took measurements before and after, and this added about 30% to the area. Airflow is proportional to the area of the hole, so this allows 30% more airflow. The whole thing took 1 hour including taking apart the turbo, measuring, cutting, cleaning, and putting it back together.
The result is that when the wastegate is wired open, I get no positive boost (less vacuum than full vacuum, but less than 100kpa) all the way to redline. With the wastegate in action, no boost creep.
Also, for the record, I did no channeling, which IMHO is for people who don't understand physics.

Sharpie line is where the outline of the flapper. Red line is approximately where I cut out.
The only thing I did was enlarge the hole, leaving about a 2mm rim all the way around to make a good seal with the flapper. I took measurements before and after, and this added about 30% to the area. Airflow is proportional to the area of the hole, so this allows 30% more airflow. The whole thing took 1 hour including taking apart the turbo, measuring, cutting, cleaning, and putting it back together.
The result is that when the wastegate is wired open, I get no positive boost (less vacuum than full vacuum, but less than 100kpa) all the way to redline. With the wastegate in action, no boost creep.
Also, for the record, I did no channeling, which IMHO is for people who don't understand physics.
__________________

Thread Starter
Joined: May 2006
Posts: 15,235
Total Cats: 1,700
From: Charleston SC
1.5 more setups should go out today. That then leaves 6 more the GB list that need to get theirs. 3 of those should be hand delivered in 2 weeks. The other 3 should go out after that.
I just spend more money on getting more mid pipes made. Should be picking them up at the end of the month. I just need turbo's to get back in stock so I can start taking new orders.
I just spend more money on getting more mid pipes made. Should be picking them up at the end of the month. I just need turbo's to get back in stock so I can start taking new orders.
1.5 more setups should go out today. That then leaves 6 more the GB list that need to get theirs. 3 of those should be hand delivered in 2 weeks. The other 3 should go out after that.
I just spend more money on getting more mid pipes made. Should be picking them up at the end of the month. I just need turbo's to get back in stock so I can start taking new orders.
I just spend more money on getting more mid pipes made. Should be picking them up at the end of the month. I just need turbo's to get back in stock so I can start taking new orders.
Thread Starter
Joined: May 2006
Posts: 15,235
Total Cats: 1,700
From: Charleston SC















