rgp6373 Posted July 26, 2006 Report Share Posted July 26, 2006 i just got my truck back with the 403 installed went with 9.5 compression and for the break in i am going with a conservative tune . after that on goes the 2.75 pulley and the 90 mm throttle body and a new tune . but it pulls better than the 6.0L did i can already feel that much . now i just gotta put some miles on it not easy with the price of gas Quote Link to comment Share on other sites More sharing options...
BenKey Posted July 26, 2006 Report Share Posted July 26, 2006 Cool. Let us know how much boost you're able to maintain with the extra cubes. I would expect you to run out of injector if you're able to get above 5-6lbs. I hope you have scanning capability or a wideband to monitor that. Hate to see you loose that new motor. Quote Link to comment Share on other sites More sharing options...
rgp6373 Posted July 26, 2006 Author Report Share Posted July 26, 2006 yeah i have access to a scanner so when i make the changes after break in i will be doing some testing . kinda curious how much boost i am makin now but my gauge broke at some point during the install so i am waiting for a new one Quote Link to comment Share on other sites More sharing options...
BenKey Posted July 26, 2006 Report Share Posted July 26, 2006 Good deal I would start with that 2.9" pulley before you go any lower and just get a look. Quote Link to comment Share on other sites More sharing options...
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