91 SC pulls 504 rwhp on the Dream Crusher

David Neibert

SCCoA Admin
From a recent visit to SCU Nov 10-12 when new converter and stainless brake lines were installed, some repairs were made and finally some more dyno tuning. This car just doesn't like the methanol injection, even after changing plugs, nozzle size, coil pack and DIS module we were still getting some mid range stumbling when methanol starts spraying. I'm using Autolite XP103 iridium plugs gapped at .028"

On race gas tune it made 504 rwhp actual and 490 rwhp corrected
On street gas tune it made 493 rwhp actual and 482 rwhp corrected

[youtube]QNjARaKkcPw[/youtube]
 
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That's some sweet numbers!!.

I had no luck with the iridium plugs, I run the autolite 103's copper core gapped around .022-.024 with the meth injection.

But I'm not making near as much power as you.
 
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Thanks guys....I'm planning to increase methanol/water from 50/50 to 70/30 and if that doesn't work I'll try using some copper plugs gapped at .025"

David
 
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