Supercharger or Turbo?
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Staging Lane
Joined: Sep 2014
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From: College Station, Tx.
Supercharger or Turbo? My original plan was to run a Procharger on my 3/4 ton Sierra (yes I'm going the forged route and sticking to low compression, that's out of the way) but have seen a lot of people running the twin screw style superchargers, and guys running turbos, which I'm in love with just don't think will prevail with a 7,000 pound truck. Which setup will provide the low end power? I know the problem with turbos is that you have to build boost and that they come on strong in the top end, so will a Procharger work better for my low end needs?
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Prochargers build boost linear to RPM. The faster the engine is spinning, the faster the procharger is turning by a direct ratio. This means that it starts low and builds boost slowly and predictably. This isn't the best for low end torque.
Twin screws and turbos both provide better low-mid range. The twin screw will provide the best low end.
Twin screws and turbos both provide better low-mid range. The twin screw will provide the best low end.
Thread Starter
Staging Lane
Joined: Sep 2014
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From: College Station, Tx.
Kenne Bell practically the best? I'll start researching them. I wanna build the truck as a sleeper I guess you could say. Tired of all the pretty boys in their diesels, need to be put in their place. I wanna end up making 600 and 600, I feel like those are practical numbers and streetable.. Could be wrong however.
On The Tree
Joined: Apr 2013
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Kenne Bell practically the best? I'll start researching them. I wanna build the truck as a sleeper I guess you could say. Tired of all the pretty boys in their diesels, need to be put in their place. I wanna end up making 600 and 600, I feel like those are practical numbers and streetable.. Could be wrong however.
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Staging Lane
Joined: Sep 2014
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From: College Station, Tx.
Yeah this whole build will be spread out of the course of a couple years, haha, just trying to get a parts list going and see what kind of cost I'll be looking at. I'm getting an LS9 cam cheap off of my tuner and it'll work for what I'm going to do, just need to figure out what to do with heads and bottom end parts.
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Staging Lane
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From: Norn Iron
A twin screw would probably be best. But at that weight and moderate power goals, you could build a 427 with small turbos that would give you very good spool which would offer lots of torque at lower rpm's
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9 Second Club
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From: Norn Iron
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Staging Lane
Joined: Sep 2014
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From: College Station, Tx.
Now that just sounds expensive.. Wanna stick with my iron block 6.0, MAY bore it out but does it really make a difference?
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From: Norn Iron
You could create more low rpm torque more easily, and spool any turbos faster. it would just do it all more easily.
But of course you could retain the 6.0
Ive never driven such a heavy vehicle, so I'd think every little helps. But I'd also think the weight and auto trans would load then motor up well which should also help spool any turbos used.
Again with the low overall power goals in mind, you should have access to very fast spool from a turbo setup via small turbos.
Or a twin screw blower, whichever you think might work best.
Kenne Bell practically the best? I'll start researching them. I wanna build the truck as a sleeper I guess you could say. Tired of all the pretty boys in their diesels, need to be put in their place. I wanna end up making 600 and 600, I feel like those are practical numbers and streetable.. Could be wrong however.
Thread Starter
Staging Lane
Joined: Sep 2014
Posts: 86
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From: College Station, Tx.
Thread Starter
Staging Lane
Joined: Sep 2014
Posts: 86
Likes: 0
From: College Station, Tx.
Choosing the correct size turbo you will have faaaaar more torque than a procharger and be able to make a few hundred more horsepower than a roots style blower.
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Staging Lane
Joined: Sep 2014
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From: College Station, Tx.