Pro Chargers

2

2006 LBZ

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Feb 8, 2011
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Calgary, Ab.
Curious as to how many procharged duramax`s are out there, I just finished building a trans and replacing injectors in a customers truck that has a pro charged lb7 in it, I love driving it, throttle responce is wicked and it really lights the turbo quickly. I`ve never heard why more guys dont run this set up as it seems to work well, this truck dynoed 730rwhp with a slipping trans, and its just the basic entry level procharger.

I`m building my LBZ over the winter as a daily driver, 1000hp at the tire kind of truck but havent decided for sure on twins or a big procharger with something nasty in the valley.

Thanks
 
Slammed2007Lbz

Slammed2007Lbz

Super Spicy Tunaz
Feb 1, 2009
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well i just found that one really cheap but there is a ton of them for around 1,500 on there. im not sure what size you would need? I guess it would dpend on how big of a turbo you were trying to light with it:D
 
blackdirtymax

blackdirtymax

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Apr 15, 2010
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Some of the reason the procharger thing didn't take off is the deflection and stress put on the snout of the crank it caused . Just what I heard but could be off base.


Built motor , duel fuelers , 60's overs , gtx4202r
 
Slammed2007Lbz

Slammed2007Lbz

Super Spicy Tunaz
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Ok all the above makes good sense, BUT what if you had a truck that you didnt mind removing the A/C compressor and maybe running a electric waterpump? That should free up alot on the crank to were the procharger shouldnt phase it:confused:
 
paint94979

paint94979

Beer Nazi
Sep 18, 2006
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Slammed2007Lbz said:
Ok all the above makes good sense, BUT what if you had a truck that you didnt mind removing the A/C compressor and maybe running a electric waterpump? That should free up alot on the crank to were the procharger shouldnt phase it:confused:
Click to expand...

not exactly lol
 
blackdirtymax

blackdirtymax

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Slammed2007Lbz said:
Ok all the above makes good sense, BUT what if you had a truck that you didnt mind removing the A/C compressor and maybe running a electric waterpump? That should free up alot on the crank to were the procharger shouldnt phase it:confused:
Click to expand...

It's not so much how many acc. Are up there as it is the weight of that big hunkin balancer and then a huge procharger pulley and the fact of the distance between the first main cap and the end of the crank . That's alot crap getting thrown around on the snout of crank that is already snapping on stock trucks. :(


Built motor , duel fuelers , 60's overs , gtx4202r
 
paint94979

paint94979

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blackdirtymax said:
It's not so much how many acc. Are up there as it is the weight of that big hunkin balancer and then a huge procharger pulley and the fact of the distance between the first main cap and the end of the crank . That's alot crap getting thrown around on the snout of crank that is already snapping on stock trucks. :(


Built motor , duel fuelers , 60's overs , gtx4202r
Click to expand...

well put
 
GeorgiaDieselGTO

GeorgiaDieselGTO

Wants to drive his truck
May 12, 2010
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Crossville
The problem i have seen with the crank is the fact that it was externally balanced and the balancing weights are hung on the front of the supercharger pully. Even at that, the one we worked on never had a crank problem, but it did walk the mains and melted bearings. Maybe partially because of the harmonics that the charger caused, but think the an internally balanced crank would have helped considerably.
 
Slammed2007Lbz

Slammed2007Lbz

Super Spicy Tunaz
Feb 1, 2009
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Yep that makes good sense dirtymax so for my next question, there have been alot of cranks snapping like mentioned above so is there anyway to internally support that section of the crank? Like by adding a brace welded to the inside of the block. Im really thinking out of the box on this one and have no clue if it would work but the picture that im coming up with is like if you had a bearing of somekind added to the crank and then ran a plate/brace of some kind to the block or somewhere else to try and support the long section of the crank we are talking about. Im just talking out my ass but may be possible???
 
2

2006 LBZ

New member
Feb 8, 2011
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Calgary, Ab.
I dont have any pics of it but the motor that this charger is on has a totally custom one off crank support (Extreme Engine Development), but that is because of previously broken cranks and windowing the block lol. I`m leaning towards twin turbo`s right now. less headaches to deal with on the front of the motor. Changing the serp belt is a real pain in the a**. hahaha. For driveability though, I havent driven anything that spools as quick as this procharged set up.
 
TeaBagger2006

TeaBagger2006

Im a Garrett Nut Swinger
May 11, 2008
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Bis ND
At sema, banks had supercharged d max.... They had this contraption around the pulley that looked like it was taking the stress off the crank that the charger would put on it
 
2

2006 LBZ

New member
Feb 8, 2011
195
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Calgary, Ab.
MarkBroviak said:
blackdirtymax said:
Some of the reason the procharger thing didn't take off is the deflection and stress put on the snout of the crank it caused . Just what I heard but could be off base.

X2 and mixed with the tuning resulted in quick failures of the crankshaft.:thumb:
Click to expand...


Mark,

would you be able to elaborate on the tuning issues with the prochargers? Just curious what your take is on it.

Thanks
Chad
Click to expand...
 
C

c0ncEpT

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Jan 2, 2012
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Michigan
If your going to run a procharger the only way to go is a gear drive IMO. The gear drive takes all tension off the crank and eliminates all belt slip issues letting you spin the blower as hard as you want.

The only problem is no one makes one for a duramax.
 
2

2006 LBZ

New member
Feb 8, 2011
195
0
0
Calgary, Ab.
c0ncEpT said:
If your going to run a procharger the only way to go is a gear drive IMO. The gear drive takes all tension off the crank and eliminates all belt slip issues letting you spin the blower as hard as you want.

The only problem is no one makes one for a duramax.
Click to expand...


Gear driven is ideal for sure, but i`m not sure if there is room for it on a daily driven dmax. The truck I work on that has the procharger, runs a second serp belt, we can run the belt fairly loose and still have zero slippage. I just re installed the crank support late last week before he drove it from calgary to salt lake city (had some bearing issues in the support the week before his trip) It really is running great and is a blast to drive. With the motor internally balanced and the crank support I feel its bullet proof and a unique set up too. (thats what this guy loves, something different)

The topic of pro charged diesels definately seems to be a one sided topic for sure, but its neat to try new things. Twin turbo`s is still the easier way I think, but this LB7 proves pro chargers can work great on a diesel. And with really only one company offering brackets for pro chargers it makes it tough to get the interest in them. :thumb:
 
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