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View Full Version : Modding a displacement on demand motor

Chris 96 WS6
10-07-2005, 12:04 PM
How's that going to work? Wonder how much HP those collapsable lifters will take?

How's the DOD program going to react to a big cam?
NviouSS
10-07-2005, 12:13 PM
good question. someone find out.
gettinthere
10-07-2005, 12:19 PM
I've pondered that too. Who's gonna be the first to try it?
NviouSS
10-07-2005, 02:49 PM
what cars have the dod?
Chris 96 WS6
10-07-2005, 02:59 PM
No cars yet, just trucks/SUVs
Chris 96 WS6
10-07-2005, 02:59 PM
Oh wait, the new LS4 Monte and Impala and GXP have DOD.
NviouSS
10-07-2005, 03:07 PM
i bet you would have some tuning problems that you run into.
Chris 96 WS6
10-07-2005, 03:09 PM
I feel pretty sure that a cam would really FUBAR things up in one of those. At highway cruise you'd have a 4 cyl running on a monster cam...which would probably not run very well.
NviouSS
10-07-2005, 03:13 PM
could you disable the dod if you did a h/c swap?

i wonder if you would have to have a special cam made in order to have vehicle run right with dod.
Chris 96 WS6
10-07-2005, 03:17 PM
I'm sure its easy to disable. All you have to do is kill the solenoids that cut oil to the special lifter bodies. That might throw a code but I'm guessing you could program it all out too.

I have no doubt there will be DOD retrofit kits to let you put normal lifters, etc. into those motors.
LiquidFire350
10-07-2005, 04:36 PM
i thought all GM V8s after 02 have DOD, so i always thought the 03+ vettes, 04+ GTOs had it