Hey guys,

I have been playing with forced induction on my Miata for a year now, using an M45 I got cheap from a co-worker when he decided to go turbo. Started out with the basic setup running 5.5 psi of boost and dynoed it at 164 wheel HP 139 lb/ft torque. I had some fun with it, eventually running a 14.855 @ 93.37 at US41 dragway. Then like any junkie I had to increase my dosage! I swapped over to E85 fuel with RX8 injectors and a walbro 255 lph pump, and swapped in a larger crank pulley and smaller nose pulley on the supercharger. Now making around 9.5 psi peak boost I put down 200 WHP and 174 lb/ft torque. This was on rudimentary fuel control from an old school non-adjustable power card. I then purchased an MS3 and started tuning it.

Before spring rolled around I had already decided to swap to a turbo system, and have chosen a BEGI S4 setup with GT2860 turbo, external wastegate, and the V-band housing. This used to be called the S6 setup before they changed their designations. Along with the S4 setup I am getting a full 3" exhaust system, ACT clutch, ACT pro lite flywheel, radiator upgrade, and coolant re-route.

Thanks for listening to me ramble

Keith

 

Very intelligent decision making sir! I read about you running a power card, I was like "oh god, here we go with another clown...what? MS3?? This guy just redeemed himself!!!"
Welcome!!!

 

MS3 from MS labs, along with a "logging inputs" box that has channels for 20 analog inputs that feeds its data to the canbus input on the MS3. I am a data logging junkie.

I have extensive experience tuning the AEM EMS stand alone ECU I used on my EVO VIII back when it was my toy. Ended up making 550 wheel HP on E85 with that setup. Any more and I would have needed upgraded internals. Man do I wish the miata could make over 500 on the stock block!

Later,

Keith

 

intro threads without pictures are stupid. 550 whp on a miata motor is also stupid (stupidly awesome but still stupid).

 

Here are the demanded pics These were taken just after I purchased the car. I will do underhood shots when I have the S4 system installed. I will probably do a "step by step" of the installation.









Keith

 

nice. that thing is pretty clean. When you do you should start a build thread in the media section. w/ lots of pictures of course.

 

Yup, incredibly low milage when I purchased it in summer of 2011, it only had 26,000 miles on it! It was somebody's weekend toy. I am right at 50,000 miles now.

Speaking of low milage, does anyone make standard bore drop in forged pistons? I would love to be able to pull the stockers out, do a hone, and drop in new pistons and rods. With the low milage I don't really need an overbore, but that is all I have found at miata vendors.

Keith

 

Welcome, Twodoor. Check out the Miata Gallery and post up some pics!

 

Nice to see another turbo Miata in Indiana, let me know when you are near Brownsburg

 

Looks like you are about an hour away from me. After I get my setup up and running we need to meet up! What setup are you running?

Keith

 

Before you start your build i highly recommend combing the builds section as well. There is a ridiculous amount of data on this site. It is one of the most informative car forums on the web.

I wish every noob read this before they did anything on our forum.

https://www.miataturbo.net/diy-turbo...k-links-56507/

Plenty of pistons and rods out there. that link will kind of give you a good idea of what parts are good up to what power levels.

 

Keith, I have a SC 1990 car that I build in 2009 and am finishing up a 99 sport DYI EFR build right now, we can meet at Putman park next time you or I do a track day!
The 99 build is here https://www.miataturbo.net/build-threads-57/harolds-1999-sport-build-77297/
SC 90 photo
https://www.miataturbo.net/album.php?albumid=391&pictureid=2921

 

Hey there,

I have never been to putnam park myself, and when I look it up on the net all I see is stuff about "the club" where it costs $7,000 for lowest level membrership and $5,000 a year dues! I take it there are "non-club" days where novice's like myself can get track time?

Keith

 

Keith,
Look up 10 10th motorsports ( no affiliation) they do track days there all the time and you can request an instructor at no extra charge, there is usually a spec miata guy or two instructing great bang for the buck usually 3 hr of track per day

 

Here are some pics of the Supercharger.







Keith