Re: Oem Vs Johnson Cm30 Pump
Originally Posted by Steve Hellums
I was on a thread last night and that's what I was clicking on, "letmotorsports.com", the page would open and let me choose a vehicle for a search, but that's all it would do. I'm relocating my OEM heat exchanger 1&1/4 inches forward to add two 330 cfm cooling fans on the back side and while I'm in there I'm going to add a temperature gauge to the system. While I got the whole front end off the car I was considering replacing the pump if the OEM one had inadequate for a car running a Renntech kit. I'm going to make a thread with pic's of what I was doing as soon as I can get my wife to load the pic's off the camara, (she don't like me messing with her camara or I'd do it myself).
Some people are running the Renntech and equivalent (ASP pulley/tune) without doing this mod and they seem to be running fine without it. I plan on upgrading the pump and HE once I do step up to a bigger pulley tho. I'll probably be going with the ASP pulley and Inmotion tune (basically the same performance for half the $ of Renntech).
Last edited by BlUEMDsrt6; Jan 13, 2008 at 06:20 PM.