Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   Build Threads (https://www.miataturbo.net/build-threads-57/)
-   -   One of the last NB's getting boosted (https://www.miataturbo.net/build-threads-57/one-last-nbs-getting-boosted-88517/)

yossi126 08-03-2016 09:38 AM

Wow, It feels like I gained 10 hp back. The car responds just as a miata should. The transition between the gears is lightning fast.
Moral of the story is Exedy clutches suck! :)

sonofthehill 08-03-2016 11:45 AM

Thanks for the info, I am definitely leaning toward a new FM clutch.

yossi126 08-14-2016 11:05 AM

And we're off!
Exhaust removed and oil pan drilled.

https://cimg4.ibsrv.net/gimg/www.mia...5a0dfb084b.jpg

https://cimg5.ibsrv.net/gimg/www.mia...223560772b.jpg

https://cimg8.ibsrv.net/gimg/www.mia...ee4322354b.jpg

yossi126 08-15-2016 07:38 PM

Moar photos
Plus intercooler piping done
Heat shields
Water and oil lines
Just injectors and 2.5" piping left

https://cimg2.ibsrv.net/gimg/www.mia...8e307fbac6.jpg

That clearance!

https://cimg3.ibsrv.net/gimg/www.mia...ef14f08152.jpg

https://cimg4.ibsrv.net/gimg/www.mia...ff26f977ce.jpg

thumpetto007 08-16-2016 12:44 AM

Did you cut out circles in your headlight cover?

99mx5 08-16-2016 01:20 AM

Ditch those water line fittings and get proper AN barb fittings. Those will break and leave you stranded. The outside one is already bent at the collar.

yossi126 08-16-2016 08:16 AM


Originally Posted by thumpetto007 (Post 1354074)
Did you cut out circles in your headlight cover?

Not sure what you mean. It's a european car, maybe that's why something looks different?


Ditch those water line fittings and get proper AN barb fittings. Those will break and leave you stranded. The outside one is already bent at the collar.
It's an Artech piece, should be proven good I guess.

yossi126 08-19-2016 12:36 PM

It's alive!
Been a hell of a day yesterday.
We did some misc stuff like finishing up the oil lines, wiring for the boost controller and wideband.
After all said and done I went out feeling stoked and bewsted.
Problem is my engine bay sounded too quiet and the car overheated faster than the turbo's spool up.
Found out my main fan connector pins got broken sometime during the installation and silly me forgot to let the car operate at idle to check for thermostat and fans operation.

So, obviously I found myself stuck in the biggest traffic jam in the country (no, really) during rush hour creeping up to 228f.
At this point my laptop's battery died and I had no monitoring.
I was able to exit in the first opportunity I had, let the car cool down for a while and actually found a nicer way home without too much traffic.
Using Rev's base map, the car is super lean for now and I'm trying to stay out of boost.
Gonna try autotune later on in a couple of hours.
Main fan ordered from Autolink mx5.
Reroute and timing parts in the mail.
Revent muffler in a couple of weeks time.
Will clean up the engine bay after all said and done.
Exciting times! :)

https://cimg1.ibsrv.net/gimg/www.mia...3f0beae9be.jpg

https://cimg2.ibsrv.net/gimg/www.mia...62b0b7b263.jpg

https://cimg4.ibsrv.net/gimg/www.mia...d2ce027f1a.jpgCustom no turbo popo-won't-notice heatshield :)

yossi126 08-20-2016 05:47 AM

Tried Scott's base map. Feels way better.

Currently 5-6ish psi but soo much fun! wot stabilised at around 10.5-11.5 afr.
My first turbo victim was a BRZ :)

yossi126 08-20-2016 09:41 AM

Can anyone tell if this is safe enough?
140 Kpa max pressure for now until dyno.
98 ron fuel
https://cimg3.ibsrv.net/gimg/www.mia...99bcce8caf.jpg

yossi126 10-08-2016 03:30 PM

muffler from REVENT/sturovo is ready after three months or so. Still waiting for it to get shipped.
Turns out the Bosch diverter valve I ordered is a fake chinese 25$ unit, and it failed on me in just two months.
What you guys think? Should I go for an oem one? Amazon has a dealer which states oem for 49.11$
I fell in love with its sound and the fact that it is actually a valve and it opens up according to pressure and not full blown jdm yo in ya face style all the time.

https://www.amazon.com/OE-Supplier-0...rds=06A145710P

Or just get a Turbosmart Kompact for 120$ and it will bolt on to my FM piping..

Advice appreciated.

Some entertainment -
Shield less

https://cimg3.ibsrv.net/gimg/www.mia...417aefbb9a.jpg

https://cimg6.ibsrv.net/gimg/www.mia...028cbbb09e.jpg

Greg is my hero

https://cimg8.ibsrv.net/gimg/www.mia...fc6ac1d871.jpg

yossi126 10-25-2016 01:41 PM

I managed to score a used oem bosch from my mechanic for cheap so that sorted that point out.
Unnoticed a speed bump the other day and flew over it pulling in 2nd gear. Felt it VERY good, broke my pipe before the muffler.
I am straight piped for now and kinda like it to be honest :)

Bad news is Revent's post office rejected the package for some reason and he wanted to use express which is twice the price, at which point I sadly asked him to cancel the order.
I'm waiting for an exhaust for too long now...
I was able to score a used 22" box from Amazon for half the price, and I'll let my mechanic do the piping and brackets. So hoping for good this time.

Savington 10-25-2016 02:16 PM

Those aluminum water fittings are going to crack and leave you stranded. Replace them ASAP. ARtech or not, that's the wrong way to do water lines.

yossi126 11-08-2016 10:26 AM

This happened yesterday, finally!
12576 magnaflow for 70$ used off Amazon, such a deal.
Very happy with the outcome. It's quiet and throaty when stepping on it. No highway drone. I owe it to this community for the recommendation.
Now I can play with boost control and see what this little t25 can do.

https://cimg3.ibsrv.net/gimg/www.mia...ad020a6dcc.jpg

https://cimg1.ibsrv.net/gimg/www.mia...752243f8e0.jpg


yossi126 11-20-2016 06:38 AM

Did a three hour session with a buddy of mine with his det cans setup. We were mostly pulling timing everywhere lol.
I managed 14 psi @ 3300 rpm with open loop boost control for now. We didn't have much time at that point so we only did a few pulls. Still needs to smooth it out and then try my luck with CL. The car feels strong and pulls hard in the midrange.
I think dyno now will happen just to see what the car makes.
Certainly looking forward to it.

https://cimg7.ibsrv.net/gimg/www.mia...e98e95065e.jpg

yossi126 11-27-2016 02:59 PM

Don't know why I thought virtual dyno costs money.. Anyways.. This is a 4th gear pull on a 4.1 6-speed.
Pretty inline with what the car feels like. I have no idea why it shows 414 lb ft, but when holding the cursor on the torque graph it shows 234. And by now VEAL fixed the afr. This was early boost control run.

https://cimg7.ibsrv.net/gimg/www.mia...ee9cede826.jpg

And this is the ignition I came up with. Obviously there is some finishing touches, as in seeing if I need high midrange at the 200 kpa. at least I know for sure it doesn't ping/knock there.

https://cimg0.ibsrv.net/gimg/www.mia...9ad6896fa4.jpg

And some night time shots with my Nexus 5X. I am still amazed with this phone's camera.

https://cimg1.ibsrv.net/gimg/www.mia...4ab014552a.jpg
https://cimg2.ibsrv.net/gimg/www.mia...dbdeda8da1.jpg

yossi126 12-19-2016 08:44 AM

Did my first autocross event in 2.5 years, missed that a lot.
Being that Dead Sea is the lowest point on earth, as I was getting down hill the boost started overshooting like crazy. Good thing I had my laptop with me.
Reduced the boost by 1-2 psi and I was good to go.
Lots of BMW's and VW variants (Seat Cupra, GTIs, Audi's)
There was the new Civic type R which got the quickest time of the day, killer car.
Most importantly the car never broke down, didn't have any issues apart from an obvious overheating at the last sessions, and I was able to do the 200 mile round trip without any issues at all. I seriously need some coilovers though, but that will happen later in 2017 once I recover from the turbo expenses.
Just a handful:

https://cimg8.ibsrv.net/gimg/www.mia...c63249003c.jpg

And my last session of the day, was my best in terms of pace but I missed a turn:


yossi126 01-26-2017 05:40 PM

Finally dyno'ed it
Put on a brave heart and did it by myself from the get go. Feeling proud :)
Next plans for the car would be a set of coilovers as I'm with the sad, dying stock suspension. But it will only happen coming end of the year.
Copied over from dynos section:

stock 1.8 vvt unopened with 95k miles
Squaretop
sr20 T25 @ 14 psi peak
FM diy kit, piping kit
2.5" magnaflow
ff640 injectors
Basic MS3 by Rev
Made 235 ish hp @ the hubs, 217 lb-ft 5th gear 1:1

Overall Pretty happy with the results. Exactly what's expected from other dyno sheets I have seen with this turbo.
Kinda bummed I couldn't add more timing. Had a pull with 245 whp just to see what can be done but it knocked. We have a shitty fuel in our country.
What was very interesting to see is in the second plot with the boost graph, more boost did not translate to more power in the midrange.

https://cimg7.ibsrv.net/gimg/www.mia...2fe6c226eb.jpg

https://cimg6.ibsrv.net/gimg/www.mia...649a9d1544.jpg

yossi126 06-07-2017 11:49 AM

https://cimg0.ibsrv.net/gimg/www.mia...fdd3b0d570.jpg

Well that sucks... Bought a Mishimoto five years ago not knowing any better...
Gotta give a hats off to their customer service for their lifetime warranty, but shipping a new one and adding taxes on that made it not so tempting to get an ebay grade radiator for what is now a turbo car.
The Crossflow from 949 was on my drooling list for a while and the circumstances let me order it sooner than I thought, so that is what I did.
Will update after installation.

M.Adamovits 06-07-2017 12:23 PM


Originally Posted by yossi126 (Post 1420341)
Made 235 ish hp @ the hubs, 217 lb-ft 5th gear 1:1


5th gear is .814. 1:1 (direct) is 4th gear.


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