Posted 7/16/2011 09:00 (#1865370 - in reply to #1864944) Subject: Re: turning up 4430 for tractor pull
south central nebraska
In my experience, the intercooler really didn't make much difference. Seen one put on a 4555, because of a low horsepower complaint, didn't make any difference in hp and still had to turn up the smokescrew. Also know of 4630's and 4840's with them taken off because of they needed replaced and the customer did not want to spend that kind of money to replace.