Chevy/GMC Truck and Duramax Turbo Diesel Forum Discussion of General Topics related to All Chevy and GMC Trucks as well as the Diesels in them

Turbo Charged AND Super Charged DMAX

Old Jul 25, 2008 | 12:07 AM
  #131  
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looks like itl flows more than the little Y bridge that call an intake manifold
 
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Old Jul 25, 2008 | 02:06 AM
  #132  
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Originally Posted by 2500HeavyDuty
looks like itl flows more than the little Y bridge that call an intake manifold
Mick feels it flows a lot better than anything else he's tried. He likes it so well he wants to build one for the average " Mike " .

On another note, I did not get a chance to respond to your message. I'd grab that fca if the plug will fit.
 
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Old Jul 25, 2008 | 05:13 PM
  #133  
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mick should just make custom kits for the average guy too id pick one up
 
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Old Jul 27, 2008 | 12:14 PM
  #134  
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Originally Posted by 2500HeavyDuty
mick should just make custom kits for the average guy too id pick one up
I dont know if this twin sc setup is suited to the "average" guy. More likely for the slightly eccentric??? Its been a pretty big job to date but we are getting it ironed out now. I think a simple sc kit into a stock or slightly larger than stock (gt42 or similar) would be a nice setup. We are working on something there. Keep tuned. Remember this is only part of our lives so sometimes we seem a little slowwww...
 
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Old Jul 27, 2008 | 12:40 PM
  #135  
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Mick, with the 42 and SC set-up was there a great lag reduction associated with the 42? I'm almost thinking that a BOV would've been needed on the SC if there wasnt. Of course the exhaust is going to play a factor there but with my 4" straight pipe with stack, I dont see it being much of an issue.
 
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Old Jul 27, 2008 | 12:59 PM
  #136  
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Originally Posted by DangerousDuramax
Mick, with the 42 and SC set-up was there a great lag reduction associated with the 42? I'm almost thinking that a BOV would've been needed on the SC if there wasnt. Of course the exhaust is going to play a factor there but with my 4" straight pipe with stack, I dont see it being much of an issue.
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
 
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Old Jul 27, 2008 | 01:13 PM
  #137  
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Originally Posted by SuperTurbo
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
Yes, the 45, or anything bigger for that matter, is a pain on the street for daily driving unless you can keep the truck on the pipe. Thats why I drive in tow/haul mode all the time.

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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Old Jul 27, 2008 | 01:17 PM
  #138  
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BTW- I'll be in Perth for a week in about 2 months. May have to take a couple of days vacation and come over to your side of the island to get a ride in that truck.
 
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Old Jul 27, 2008 | 08:22 PM
  #139  
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yeah mick i hear form mike about that dual SC setup

One is good enough, id like to still have a turbo any way.
 
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Old Jul 27, 2008 | 10:43 PM
  #140  
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Originally Posted by 2500HeavyDuty
yeah mick i hear form mike about that dual SC setup

One is good enough, id like to still have a turbo any way.
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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