JMDigital said:My turbo was upgraded to the 60-1 by majestic turbo before I owned the car. I emailed them to ask them this question exactly.
This was the reply from them
"That turbo can safely operate at 15-18psi range assuming your fuel system and engine can support that."
89turbosupra said:I will be installing a ebay 12x24x3 core IC and 2.5 hard pipes. I thought it would be more than 20 psi though. A stock ct is good for 15 and Ive heard of people running 22 on a 57 trim so I thought the 60-1 would be good to 25 or so. I guess I was wrong.