Dual Supercharged Dmax In The Land Down Under
BOMBARDIER
Joined: Apr 2007
Posts: 6,804
Likes: 319
From: Houston, Tx
Thanks dangerous. I didnt run the 42 with a sc only the 45. I did have a 42 on its own though and its just my feeling with all the different things we've done, that the 42 goes well up top but needs that start at the bottom. I think for everyday driving the 45 is a little big. Nice if your going to the track every other day but dd just a bit big as dd. As far as BOV's and wastegates go, so far we find that theyre not really needed, as with the sc you can determine your boost a bit easier by pulley gearing. With that Sc 45 we had it geared to run 60 psi when it made nearly 800 on the last tune. 60 is all we want on the stock bottom end. We have just finalised the gearing on the twin sc's to give us 60 psi also and now the second cp3 is on Mike will start getting serious with the tuning
That was actually going to be my next question. The boost from the SC is going to play a big part in how the turbo reacts but where is the limit. Right now you're probably the only one that knows in a real world environment. I can calculate the projected outcome but that differs with humidy, AAT, and barometric pressure so I would just be getting a base number to start with for the atmosphere here in Houston. So are you thinking that 60psi from the SC is going to be the target? I'm seriously considering trying this instead of going with the MPI twins. In Houston we have almost ideal conditions to run a set up like this. Also, did you guys go with a stock modded CP3 or the complete high output unit?
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Diesel Fan
Joined: Feb 2008
Posts: 61
Likes: 3
Super Moderator
Joined: Oct 2007
Posts: 14,872
Likes: 764
From: Houston, Tx
Not sure what you mean but one by itself is not so good for huge power. One with a turbo is pretty good and two sc are working real well. A bunch of bugs have been worked out and now on to more power with the two. As Mick mentioned, stock bottom end and we just want to play some more before the ultimate test. How much power will it make before it goes
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Diesel Fan
Joined: Feb 2008
Posts: 61
Likes: 3
No he doesn't Danny. Although head studs will be incorporated in the next phase of his Dmax project, we have not had any issues up to this point. Who knows, we could have a pop off at anytime.
