Miata Turbo Forum - Boost cars, acquire cats.
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Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   MEGAsquirt (https://www.miataturbo.net/megasquirt-18/)
-   -   how to tune spark at low-load and EGT tuning (https://www.miataturbo.net/megasquirt-18/how-tune-spark-low-load-egt-tuning-30376/)

hustler 01-17-2009 05:16 PM
Originally Posted by thesnowboarder (Post 354528)
For you EGTs Hustler:

https://www.miataturbo.net/forum/t29678/#post345982

Able to log in megatune, i would sell your gauge and do what savington and i plan to do. You will probably end up with extra money after the sale of the gauge as well.
I'd love to trade my greddy egt gauge for a black greddy boost gauge.

Savington 01-17-2009 07:35 PM
Originally Posted by hustler (Post 354694)
i think overboost is going to stay no matter what i do unless i get an external gate.
I was able to dial out Nick's (snowboarder's) overshoot by cranking up the boost. There's still no excuse for your boost curve, because if your fuel setup will do 10psi at redline, it will certainly handle 10psi at 3500 or 4000rpm. I used the MS EBC to shape the boost curve on Nick's car. With the EBC off, it is a slow rise from 6psi to around 10-11 at redline; with the EBC on, it snaps to 11 and holds 11 to redline, or he has maps that will do 14psi or 17psi.

patsmx5 01-17-2009 07:39 PM
1 Attachment(s)
Originally Posted by hustler (Post 354694)
unless i get an external gate.
Needs more:

Attachment 209016

hustler 01-17-2009 10:23 PM
so I just drove from Houston to Dallas, parked the car and in the pitch black I could see the turbine just barely glowing...ever so slight. Is this normal, and or could the ceramic coating be a part of it?

I think that if I drove the car 8-hours on the highway now and its still alive, so I guess that says something. Its hard to believe I've put this many miles on the car and haven't had to work on it yet, lol.

shuiend 01-18-2009 12:21 PM
Originally Posted by Savington (Post 354507)
I would take one look at that boost curve and tell the tuner he wasn't done. That's bullshit. It's not a damn Whipple.

edit: When was the last time you calibrated the LC-1?
I think Hustler needs to finish breaking in his motor. People in the dyno thread said after break-in power goes up 10%-20%. With 10 psi on his built engine with a 10% increase in power with no changes it would be sitting at 220hp, 240hp with a 20% increase. Those numbers sound a bit better to what his setup should be making.

Savington 01-19-2009 03:31 AM
Originally Posted by shuiend (Post 355072)
I think Hustler needs to finish breaking in his motor. People in the dyno thread said after break-in power goes up 10%-20%. With 10 psi on his built engine with a 10% increase in power with no changes it would be sitting at 220hp, 240hp with a 20% increase. Those numbers sound a bit better to what his setup should be making.
I never even mentioned the power. My gripe is with the boost curve.


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