Clifton Posted July 28, 2006 Share Posted July 28, 2006 Your ring lands will be fine as long as it doesn't knock. You are using 108 so it's all in the timing, don't get greedy. I've run 22 psi, up to 24 psi all day long on the track with stock pistons on an L motor. 30 psi +(gauge only goes to 30) on the 7M with stock cast pistons. I think turbo will be limiting you unless you, especially if it's a standard turbine wheel. Were did the Supra 550's come from? Only MKIV's had them and they are side feed. Quote Link to comment Share on other sites More sharing options...
Bernardd Posted July 28, 2006 Share Posted July 28, 2006 Your ring lands will be fine as long as it doesn't knock. You are using 108 so it's all in the timing, don't get greedy. I've run 22 psi, up to 24 psi all day long on the track with stock pistons on an L motor. 30 psi +(gauge only goes to 30) on the 7M with stock cast pistons. I think turbo will be limiting you unless you, especially if it's a standard turbine wheel. Were did the Supra 550's come from? Only MKIV's had them and they are side feed. Same here. I'll be trying 24psi then 26 psi on zx in the next couple of weeks at the track. Water injection is a VERY good friend to take along for the ride. That's with 91 octane and meth. Quote Link to comment Share on other sites More sharing options...
Guest Cronic Posted July 28, 2006 Share Posted July 28, 2006 Not with my stocker. You have a bigger everything! Where did you get your forged pistons from? Quote Link to comment Share on other sites More sharing options...
slownrusty Posted July 28, 2006 Share Posted July 28, 2006 Damn Clifton...30+ psi of boost....now thats respect! Quote Link to comment Share on other sites More sharing options...
Guest Cronic Posted July 31, 2006 Share Posted July 31, 2006 Your ring lands will be fine as long as it doesn't knock. You are using 108 so it's all in the timing, don't get greedy. I've run 22 psi, up to 24 psi all day long on the track with stock pistons on an L motor. 30 psi +(gauge only goes to 30) on the 7M with stock cast pistons. I think turbo will be limiting you unless you, especially if it's a standard turbine wheel. Were did the Supra 550's come from? Only MKIV's had them and they are side feed. They're MK3 injectors, sorry about the misprint. 440's! Quote Link to comment Share on other sites More sharing options...
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