gator turbo for our mighty cummins?

[JLight]

Hey guys just had a e-mail from my friend about belt driven turbos for small to intermediate engines. Web site is www.gatorsuperchargers.com. Check it out Pastor Bob and nascarmark and see what cha think. Jlight

 

[dpuckett]

No offense, (didnt read the link- slow dial up) but a belt driven supercharger would be a GIANT step backwards. The beauty of a GAS DRIVEN charger is that is doesnt rob any power form the engine to make the power, unless you run a 12 cm housing to make 400 hp.



Daniel

 

[Old Smoky]

I haven't tried it, but I hear that a Whipple(sp) charger works pretty well on a 6. 5 chev diesel. Since it is belt driven boost will be limited by engine rpm. But they don't need much boost...



Mike

 

[cguthrie]

More importantly J where are your pictures? I tried to look at your pickup but there is 2 galleries but no pictures? I'd really like to see your pickup!!



Chris

 

[formula]

Originally posted by dpuckett

The beauty of a GAS DRIVEN charger is that is doesnt rob any power form the engine to make the power, unless you run a 12 cm housing to make 400 hp.



Daniel

All turbochargers, blowers and all of their variations will consume power from the engine. In the case of the exhaust gas turbocharger, it uses the pressure and, in some cases, the kinetic energy of the exhaust gas to drive the turbine which in turn drives the compressor. It is the production of this "drive pressure" that requires power from the engine. By running a 12cm housing at 400hp, all that's happening is that you've exceeded the flow capacity of the turbine housing which has the effect of producing high EGTs and unnecessarily high drive pressure.



Sean

 

[hdm48]

Exactly what Formula said. It is a give and take thing and the turbo wins out. A Blower will make boost faster but at a higher cost of lost power. I hear people talk about Top Fuel cars making 6000 HP and think all that power goes to the ground. FYI- it takes 1500 HP just to turn the blower.

Blowers consume more energy than a turbo in most applications. Plus the drive system is more maintenance intence than a turbo. I know, you are all thinking ford and buick use them in their cars and they run for a long time. Well, they run a very low boost setting and at a low RPM.

Anything over 8 PSI boost and the internal wear doubles. And so does the power needed to drive it. Remember, with a blower, in

order to increase boost you need to increase rotor RPM. In oder to do this, you must use a smaller drive pully (this is called overdrive) to increase rotor RPM over crankshaft RPM. As the overdrive ratio increases, the drive energy required increases.

Now I have a question. WHERE YA GONNA PUT IT?



My 2c



DAve

 

[hdm48]

Oh, I forgot to add,,

In regards to a belt driven turbocharger (now refered to as a supercharger). A turbo is load sensitive, a supercharger is not. What I mean is, you need engine rpm to spool up the supercharger, with a turbo you don't. a turbo is driven by exhaust gas mass flow. You can make max boost with a turbo at low rpm, a supercharger you cannot. Unless it is overdriven to the point that you need a wastegate.





Dave

 

[Greenleaf]

The Detroit aka drip-troit Diesels I once had the pleasure to maintain were equipped with a gear driven charger(blower) containing a wastegate. All two-strokers use the blower but not all have the gate. The blower being mounted in the "V" of the block. The idea of the gate was simple: remove excess boost psi to prevent hp loss. The blower was fed pressure from the turbo and at a predetermined rpm/load setting, the turbo (in this case turbos) would make so much boost that the blower was just along for the ride



scott