Date: Mon, 21 Dec 1998 20:56:09 GMT
From: "Gary Derian" <gderiannopsamrgate.net>
Subject: Re: Turbocharged Engine pings under boost


Increase the slope of the rising rate pressure regulator to richen the top end and add water injection. Water, up to 50% of fuel flow greatly reduces detonation. -- Gary Derian <gderiannopsamrgate.net> Firestarter wrote in message <36854b94.359059810nopsam.preferred.com>... >I recently installed sort of a home grown turbo system on my car. It >really runs great but it starts to ping when it reaches maximum boost. > >The reason I am posting this message in the Saab and Volvo newsgroups >is because they are two of the most popular turbocharged makes sold in >America. > >Here's the specs: > >Car: 1980 Fiat 2000 Spider >Engine : two liter twin cam >fuel delivery system: Bosch L-jetronic FI >Compression ratio: 8.1:1 (stock C/R) >Maximum Boost: 7 pounds >Turbo: Rayjay 301F >Fuel enrichement device: rising rate fuel pressure regulator >engine managment system: J&S Safeguard knock retard device > snip

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