Miata Turbo Forum - Boost cars, acquire cats.

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-   -   I have Ping (https://www.miataturbo.net/diy-turbo-discussion-14/i-have-ping-8613/)

Mechazawa 03-31-2007 06:40 PM

I have Ping
 
Its not even 60 out and I am getting a fairly persistent ping at WOT. Before this I didn't know what it sounded like, but its so out of the ordinary that it is pretty unmistakable. A slight wiggle of the OPG needle that coincides exactly with the sound confirmed my suspicion.

When I got my turbo in it was a bit cooler than this and I vowed to get the IC done before it warmed up. Well now spring is coming on, I have barely started on the intercooler, and am looking at super long hours and no off days at work for the next month, and then we have the ping. Did I mention I have to drive the car to work?

I think my route problem here is too much boost (7 psi) for a car with no charge cooling, but I can't get it any lower with the actuator I have. I don't want to pull any more timing than I already am, and the mixture is too rich as is.

I am going to get some octane booster, or toluene, and I just PM'ed wideopen, that I need a DO kit asap. I figure I can install that in a lot less time than the IC. It is also possible that the gas I have was mislabeled. I am going to fill up at a different place next time.

UofACATS 03-31-2007 07:10 PM

The WI is a great idea, I was going to suggest it.

SloS13 03-31-2007 08:02 PM

From what I've heard, I wouldnt bother with octane booster, toluene is a good choice for a temporary fix. I second the WI.

Mechazawa 04-03-2007 06:50 AM

It seems like Toluene is unavailable around here, anyone know about using Xylene?

Thankfully it is going to be cool all week.

Braineack 04-03-2007 08:30 AM

what's your timing at, pull it back 1 or 2 degrees. Or try the reserve-helper spring.

Mechazawa 04-04-2007 01:02 PM

Base timing set to stock, pulling 6 @ 7psi with the emanage, I could try 8, but I think it would run badly at that point, or cooler plugs maybe. I am using stock plugs.

The reverse helper spring is a good idea.

I am not going to try and boost the fuel octane, after reading up on it, it just seems like a shady business.

Right now it is cold and all is good, so hopefully my WI kit will show up before it gets warm again, that way I could advance the timing and even crank up the boost :)


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