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-   -   Dyno'd now what? (https://www.miataturbo.net/dynos-timesheets-21/dynod-now-what-69040/)

18psi 10-21-2012 09:57 PM

I've tried sources everywhere on the manifold including directly behind the mani before and pre-tb too and there was no difference.

He's dropping off like he has a massive leak somewhere or something, or completely choking off somewhere. Boost signal wouldn't affect this nearly as significantly.

gorillazfan1023 10-21-2012 10:06 PM

Here's a link to the turbo I have... T3 INTERNAL WASTEGATE TURBO CHARGER .48ar [TC-022] - $350.00 : GodSpeed Project, The Art of Performance

Not that it has much info.

I'll check for holes in my intercooler pipes... Though I thought I sorted that out after the first time it happened to me :facepalm: Also noticed some weird chattery like noise. I believe it's coming from my clutch. If I slip the clutch slowly while stationary the noise stops, though sometimes I don't get the noise at all. I don't know, I have an FM level 1 so It should be fine, only been in there for a year.

thirdgen 10-21-2012 10:17 PM

That noise is most likely your throw out bearing just barely touching the pressure plate. Does it go away when you slightly touch the pedal?

gorillazfan1023 10-21-2012 10:22 PM

I don't think it's the throwout bearing. It sounds like something knocking on something else. But like I said it doesn't do it all the time. At first I thought it was my exhaust rattling just a little but I don't think that's the case. Again as soon as I engage the clutch it goes away. I'll try and get a video of it sometime this week.

thirdgen 10-21-2012 10:25 PM

My car makes a weird racket too...it's not my clutch, it's not DET, it sounds heat shieldish, but not sure what.

Braineack 10-22-2012 10:20 AM

Where's the log of the pull that simply can prove/disprove the wastegate/boost control is functioning properly?

and am I ready correctly? You have VVT but you're not controlling it?

gorillazfan1023 10-22-2012 11:10 AM

I tested my mbc and any change I made did not affect boost at all. So I turned up wastegate. In in the log run2.msq you can see boost spikes to about 200kpa and then immediately drops off again. Yes I have an ms2 built before there was the ability to control vvt

Braineack 10-22-2012 11:19 AM

1 Attachment(s)
the inability to maintain boost doesn't help, the VVT not being controlled doesn't help either.

get the VVTuner STAT.


Here's the VVT full retard vs full advance:

https://www.miataturbo.net/attachmen...ine=1350919194


youre running full advance...i'd prefer both. But your leaving TONs of power on the table but not controlling your cam properly, not to even mention controlling the turbo speed.

soviet 10-22-2012 11:49 AM


Originally Posted by Braineack (Post 941846)
Here's the VVT full retard vs full advance:
https://www.miataturbo.net/attachmen...ine=1350919194

I'm masturbating to this

Braineack 10-22-2012 11:54 AM

Fitting the VVT head in your case could result in spool like your first EFR and the top-end of the current.

18psi 10-22-2012 12:02 PM

I'd gladly fap to that

Faeflora 10-22-2012 12:13 PM


Originally Posted by Braineack (Post 941867)
Fitting the VVT head in your case could result in spool like your first EFR and the top-end of the current.

I bet the vvt bigger turbo spool would be even better than the smaller turbo spool.


OP: setting up VVT for boost is easy. Basically retard the cam until 2000RPM. Advance the cam fully until the RPM that the turbo is almost fully spooled. Retard fully after that.

Don't fully advance or retard the cam in a short RPM window. Go from full retard to full advance in 1000RPM.

For your turbo, fully advance the cam fully by 2500RPM, then retard fully after 3500RPM.

After you set this up, you will need to redo your fuel table. It shouldn't go dangerously lean while you tune this, but regardless keep an eye on your AFRs.

If you have nice high oil pressure, you'll be able to advance the cam even sooner. Which is better.


I don't know jack shit about tuning VVT for cruise. I drive flat out.

18psi 10-22-2012 12:22 PM


Originally Posted by Faeflora (Post 941883)
I don't know jack shit about tuning VVT for cruise. I drive flat out don't drive my car.

lolol sry couldn't resist:giggle:

gorillazfan1023 10-22-2012 12:29 PM

Thanks for the info guys. I was thinking about having reverant upgrade my ms2 anyways. I guess I'll just deal with it until I get my new setup on the car. If I wanted to go about switching from full retard to full advance, just to see if there's a difference on the street, how would I go about doing this?

Braineack 10-22-2012 12:33 PM


Originally Posted by gorillazfan1023 (Post 941888)
If I wanted to go about switching from full retard to full advance, just to see if there's a difference on the street, how would I go about doing this?

Buy, install, tune the VVTuner?

gorillazfan1023 10-22-2012 01:07 PM

Ah, didn't know if it was a setting I could change now. Makes sense.

Braineack 10-22-2012 01:18 PM

I dunno either, I'm sure you can trip a solenoid?

gorillazfan1023 10-22-2012 11:34 PM


Originally Posted by Braineack (Post 941905)
I dunno either, I'm sure you can trip a solenoid?

Eh, it's extra work. My car, slow as it might be is still faster then a lot of other "sports cars". Also it's an excuse to buy new parts.

Faeflora 10-23-2012 02:08 AM

You fucking suck

I bet you that your car drives like shit. It doesnt hold power to redline and it probably drives like a limp dick.

You could actually have a power curve but instead you pussy out and wont install a stupid solenoid. Fail

Also i bet you lose to most new sports cars with your fail power curve.

thirdgen 10-23-2012 07:25 AM


Originally Posted by Faeflora (Post 942193)
You fucking suck (because you have a car that stays running)

I bet you that your car drives home from the dyno too. My car doesnt hold power to redline because my hydra makes it pop and carry on.

I thought i could actually make 600whp, but instead i pussied out. Fail

Don't be like me and use a turbo that came from a diesel truck, unless you want to have a car that you can't drive because it'll break everytime it leaves your garage.

Thanks for your generous words of wisdom.


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