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Old 03-29-2014, 04:52 AM   #1
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Default Swapping from Belt to exhaust driven :)

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
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Old 03-29-2014, 09:19 AM   #2
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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!!!
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Old 03-29-2014, 11:11 AM   #3
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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
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Old 03-29-2014, 03:25 PM   #4
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intro threads without pictures are stupid. 550 whp on a miata motor is also stupid (stupidly awesome but still stupid).
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Old 03-29-2014, 03:41 PM   #5
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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
Attached Thumbnails
Swapping from Belt to exhaust driven :)-front-shot.jpg   Swapping from Belt to exhaust driven :)-interior.jpg   Swapping from Belt to exhaust driven :)-rear-view.jpg   Swapping from Belt to exhaust driven :)-small-side-shot.jpg  

Last edited by Twodoor; 04-01-2014 at 04:58 PM.
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Old 03-29-2014, 04:30 PM   #6
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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.
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Old 03-29-2014, 04:38 PM   #7
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Quote:
Originally Posted by krissetsfire View Post
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
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Old 03-29-2014, 08:33 PM   #8
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Welcome, Twodoor. Check out the Miata Gallery and post up some pics!
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Old 03-29-2014, 10:54 PM   #9
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Nice to see another turbo Miata in Indiana, let me know when you are near Brownsburg
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Old 03-29-2014, 11:38 PM   #10
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Originally Posted by HHammerly View Post
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
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Old 03-30-2014, 02:14 AM   #11
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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.
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Old 03-30-2014, 08:51 AM   #12
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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

Last edited by HHammerly; 03-30-2014 at 10:45 AM.
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Old 03-31-2014, 03:10 PM   #13
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Quote:
Originally Posted by HHammerly View Post
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 Harold's 1999 sport build - Miata Turbo Forum - Turbo Kitten is watching you test compression.
SC 90 photo
Miata Turbo Forum - Turbo Kitten is watching you test compression. - HHammerly's Album: Red 90 NA - Picture
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
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Old 03-31-2014, 06:05 PM   #14
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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
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Old 04-01-2014, 04:52 PM   #15
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Here are some pics of the Supercharger.







Keith
Attached Thumbnails
Swapping from Belt to exhaust driven :)-m45-my-car.jpg   Swapping from Belt to exhaust driven :)-side-view-m45.jpg   Swapping from Belt to exhaust driven :)-ready-box-ship..jpg  
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