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Custom Dodge Ram Performance Mods - Engine - 4.7 Liter V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 4.7-liter V8 engine - 310 horsepower, 330 lb-ft of torque.


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  #11  
Old 08-12-2011, 12:08 PM
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Quote:
Originally Posted by snrusnak View Post
What always stopped me from doing forced induction was tuning.....but it seems tuning has become more available and easier...
True, any performance shop will tune your vehicle for a reasonable price. Tuning is EVERYTHING so even a couple hundred bucks is well worth it!
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  #12  
Old 09-08-2011, 10:21 AM
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I went to AirRams site but didn't see anything about turbos for our engines. Does anyone know what size turbo is recommended for our motor? I have a brand new complete setup that was for a tacoma 4cyl engine. The kit has the Garrett T3/T4 turbo. It would be cool to pick up a second one if it will work on this engine and start building a twin turbo 4.7L!!
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  #13  
Old 09-08-2011, 10:30 AM
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Quote:
I went to AirRams site but didn't see anything about turbos for our engines. Does anyone know what size turbo is recommended for our motor? I have a brand new complete setup that was for a tacoma 4cyl engine. The kit has the Garrett T3/T4 turbo. It would be cool to pick up a second one if it will work on this engine and start building a twin turbo 4.7L!!
Airram only has the supercharger kit they are working on as far as I know, nothing turbo...

I know a little about forced induction, but not enough to say I'm an expert, and I don't know how to size them to an engine, it has to do with trim, etc..., etc.... but if it was designed for a 4 cylinder I'd guess it'd be too small. You could also do a single turbo, doesn't necessarily have to be twin turbo to perform well. Human beings have this weird need to be symmetrical.....it's not necessarily needed though.....I saw a small block chevy v8 that had a single turbo off of one manifold, the other manifold did not connect to the turbo in any way, and the car ran like a bat out of hell.
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  #14  
Old 09-08-2011, 11:39 AM
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That's a good piece of info, I like the idea of twin turbo but I guess it's not needed. Does anyone know what the benefit of twins would be versus single?

Based on some research, the T3 T4's are a good setup for most V8 applications

I am not a Ford fan but I found this:

"When it comes to street turbos for 5.0L or modular Fords, there are basically two common sizes: the T3 and the T4. Sure, there are a few crazy individuals out there who opt for the large frame monsters, but the T3 and T4 families can serve the needs of just about any V-8 from mild to wild."

Read more: http://www.musclemustangfastfords.co...#ixzz1XNMxvhvx
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Old 09-08-2011, 12:05 PM
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I know going too big causes spooling lag...I'd think with twins you would have less lag because you could run two smaller turbos instead of one larger...again this isn't something I have alot of experience with though. I've dealt mostly with NA applications...Also forced induction likes cams with little to no overlap.
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Old 09-08-2011, 01:35 PM
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I would love to see a T3/T4 Twin turbo'd 4.7L. I just wonder if the bottom half of the motor could hold up to the horsepower. You'd need a lot of work done too on the fuel system to keep up with all that air. That combined with the 2011's (which I have) and they haven't cracked the codes for things yet so its a bit frustrating. I won't do anything wild till my warranty runs out then its MOD TIME!!!
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  #17  
Old 09-08-2011, 01:39 PM
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The bottom end of the engine is pretty strong; The new 4.7L (don't know about the first gen) does not use individual main bearing caps, it uses something similar to a cradle, I bet it would be damn near bulletproof. I don't know about the crank, rods, and pistons/rings, but I'd guess the weakest link would be the rings. I'd think you could run mild boost and not have any issues, it seems to be a very strong bottom end from what I've read, at least stronger than most other engines.
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Old 09-08-2011, 06:41 PM
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Well I need all the info I can get about this. If your gonna do it, do it right!
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Old 09-08-2011, 06:44 PM
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I might not be able to afford it, but I really want to see it done.
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  #20  
Old 09-10-2011, 11:11 PM
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i would love it to turbo or supecharge my 4.7 i tow 30' trailer any help would be great, is thier someone out thier with a bolt for a 4.7,n
ext step air ride
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