[Fot] GT6 Burnt plugs

[Kas Kastner]

Did you check the plugs after the overheating so that you know it was from
fuel problems not the overheating??

What needles are you running? How far open is the adjusting nut for the
mixture?

*Never be beaten by equipment.*

On Thu, Oct 15, 2015 at 6:42 AM, <damys at charter.net> wrote:

> Finally got the GT6 back together and had it at Brainerd for two track
> days.  First day still had overheating issues even with the oil cooler,
> external octopus oiling and scirocco rad.  Also had a vibration in the
> rear.
>
> Then we fabricated a full rad shroud and re-did one of the 240Z rear
> axles.  Lost all but a very minor vibration that show up at around 100 MPH
> which might just be from driving an 1800 lb car that fast.
>
> Cured the overheating and actually had to tape the rad and oil cooler.
> After many laps the water was at 200 and the oil at 220.  Outside temp
> 65-70 degrees.
>
> Our new problem is we burned the electrodes off of number 1 and 4 plugs.
> The other four looked a little lean, but not bad.  We are running 1.50
> Strombergs.
>
> It seems to me that the stock intake is starving 1 and 4.
>
> I've read that Kas drilled the float jets to cure starvation at high
> RPM's, but what about the main jets.  Will this cause serious bog at
> mid-RPM's.  Also would reworking the number 1 and 4 intake runners help the
> problem.  We are maxing out at 6000 RPM's.
>
> As for the minor vibration, we have a rebuilt, fully welded 3:89.
>
> Planning on Elkhart in the Spring. Any ideas?
>
> Thanks
>
> Dave and Alex Amys
>
>
>
>
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