Post #8 is incorrect. It's not a Tial bov. It's a Tial MV-S 38mm water cooled external wastegate SON.

 

That's it. I want my money back.

YOU SAID IT WAS A BOV!


(Sorry, lol. My bad.)

Thirdgen, want to explain how slash why you built the turbo the way you did?

 

As long as I can get Slash's autograph...and his top hat.

 

I had a ball bearing turbo fail and it wasn't pretty. I had 3 journal bearing turbos on my car, and they were amazingly dependable. I had a pile of SR20 parts, and I came across a blown ball bearing 2560. I took the compressor from that and the wheel, machined the sr20 CHRA to accept the 2560 wheel. I rebuilt the CHRA from the sr20 journal bearing unit, welded the wastegate on the turbine shut for external use. You now own a sr20 CHRA/ turbine, with a gt2560 compressor and wheel.

 

Going to try not to break these when I attempt to make DIY bilstein coil overs.


​​​​​​

 

Just matched the MT.net user with the FB profile, I can't wait to see this car finished. My car is doing ok, just picked up a hard top and fixed my whiney noise issue so hopefully I can start to put the miles on it. My build thread is pretty outdated though. Who are you going to have tune this thing? Like I said if you ever need help me, nate, and jimmy are always around.

 

Being somewhat risk averse... I'm really debating whether I should just learn to do the rods or pay to have them done so I can rest a little bit easy that the engine will stay happy.

Goal is to have the car boosted and running by March/April. I think that fits the timeline. And I really want to try not to break things.

I guess sixshooter was right. Maybe the thread title needs to be changed to 'RTC overthinks trying not to break things'.

Thanks man! I'll definitely reach out to you. Always a good time to make more miata friends!

 

If you don't learn, you'll never learn.

But, I guess if your a wrench retard, then I dunno.

 

It's mostly that it's completely uncharted territory and I have no concept of where to begin and how much tune it would take. That and needing an engine hoist and stand lol.

I guess it's time to start googling and reading.

I can always start low and do this when it comes time to do more boost.

I'm shooting for 2x stock rwhp right now, so 220-230. Totally fine having that as a high point and running lower boost for 200rwhp 90% most of the time, especially on hot summer days when the AC is on.

 

Stand and crane- The harbor of freights. Wait till a sale or something and you can probably walk out with both for $200 ish. Or borrow?

Piston engines are nothing complicated inside. Read, and post progress here and we can help along the way. Its really best to get a spare motor if you haven't yet, so you can take your time with it.

 

Throwing a rod through your block is a right of passage. You have to do it at least once

But seriously, unless your rods are already weak from misuse they should handle 220-230hp just fine if you're street driving. Mine held up around 210hp on the track for almost 2 years until I went from 5th to 2nd on the front straight of Daytona and threw a rod.

 

For the HF engine hoist. Goto any local book store and head to the magazine section. Look for a Super Street, or other ricer magazines. They should all have a coupon in them for the 1ton hoist for $99. Then go back to HF separate times with the 20% off coupon to get the engine stand and engine leveler.

 

you're*

 

Do any build threads go through it if you can recall one off the top of your head... or if someone reading has done it and posted a walkthrough say hi!

Yeah, looks like the cheap stand and hoist can be had for about 200-250. The bigger issue is that I rent and my landlord has made it known that he's not happy about us working on **** down there. He's mostly worried about damage and oil stains though, so if I cover up the ground with tarp or something it shouldn't really be an issue. Planning on laying tarp under the car when working on the turbo stuff as well. He's just really obnoxious to deal with and someone from their family is always around.

I don't want that rite of passage :(

And yeah, street and autocross. Like I said, I'm okay riding around with the bewst turned down for most applications.

That's good to know about it holding up to abuse on the track for that long at a moderate power level!


Oy vey, this guy.

Jay kay, thanks for letting me bother you on facebook!

 

I was reading philly miata's build thread (https://www.miataturbo.net/build-thr...-thread-91515/) and there's some discussion regarding the fuel pressure regulators and return less systems.

Is the NB1 return less system going to cause issues when tuning? What's the benefit of converting this to a return system? I have a source for the eudm fuel rail and regulator and I'm trying to figure out what the benefit of doing this will be and if it's necessary for a build like this one or if it just adds another complication and headache. Thanks Sean for the heads up on this.

I already have a 255lphp fuel pump. I've read that the issue with these can be too much fuel pressure at idle. Is that still an issue with the MS3X? Was that the reason folks were considering the return system?

Here's a thread where I found most of the information I'm going off of: https://www.miataturbo.net/diy-turbo...l-style-74629/

 

Everything will be fine. Don't over think it.

Lol

 

You are seriously overthinking everything. Get the MS in and tuned. Get the turbo kit on and tuned. Then you can start adding more complex bits one at a time. If you try to take care of everything all at once you will end up having way too many changed variables all at once and diagnosing any problems will become a nightmare.

 

Read the forum they said... There's lots of information out there they said...

Haha, I'll chill the **** out and stick with the original plan. I don't want to end up with this thing sitting on jack stands for the next two years because I ran out of time and motivation. I'd rather drive this thing with less power than run out of time trying to do everything.

 

I'm reminded of the first year medical or psychiatric student who thinks they have symptoms of every disorder they learn of...

Lol.

 

Hey now, I'm a second year med student. What that basically means is that I have more knowledge then sense, aka just enough knowledge to be dangerous. This is why we're not allowed to run around the hospital unsupervised yet. I'm mostly being facetious, but I have a few thoughts about medical education and I think this is one of the things they do well.

Regarding having symptoms etc. I know you're kidding, but I am the total opposite of that lol. I walked around with cellulitis in my foot for a week till I was concerned enough to send a picture to my aunt who freaked out and made me start taking antibiotics that very minute because I was in vietnam. I also had malaria when I worked in Uganda so that was fun.

The only thing I guess I did this for is for thyroid stuffs. I thought I was having symptoms and it runs in my family. Just saw an endocrine doc today and it looks like something might be going on. Oh well.

How's your head? Hope that nasty case of the spins is over.

Also, isn't 'allofit' the only reasonable answer when deciding what to do?