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Hello,
well was wondering what should be my first step to do to prevent my turbo 240 from pinging..
does it in first and second at WOT third gear is no problem i havent intercooled it yet planning to in the next few months so give you a break down of the motor...
1) 82 turbo block bore 40 over with flat top pistons
2) p90 head three angle valve job with a new cam (duration lift center is 120')
Lift in/ex .315/.315
3) t3 factory turbo still

Any advice what to do or perform please let me know ....
Thanks in advance
Ron
 

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Ron,
I assume that you are using high test gasoline? If not, you need to. You might also try a can of octane booster on one tank and see if that helps. If it does, you can continue using that or a small handful of mothballs per tank. The other option would be to retard your timing slightly. One of these will do it for you.
Phantom
 
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