S/C idea...kinda crazy.
#1
S/C idea...kinda crazy.
I have always wondered if you could way overspeed the s/c to produce a very high level of boost (like use a 3" pulley-14psi) and use some sort of device like a wastegate to dump the extra boost above 8psi or so to create a motor that begins to boost at 1500-2000rpm instead of 3-4k rpm yet won't risk the motor with too much high rpm boost. I really want an engine with some torque (I HATE waiting!!!). As we all know, there is no positive displacement blower for us and turbo kits are uncertain at this time (although I'm watching with a keen eye). The only way to get serious low end power now is nos and I'm too much of a whiner to go refill my bottle every day (yes, I would empty the thing daily-LEAD FOOT!!) Anyone else like this idea? Any of you gurus out there see flaws in my plan? Thanks for any input.
#3
Isn't that the truth! As far as wategates go though they have ones out there capable of dumping the boost from turbos moving 1000cfm (which is roughly 28psi on our motors). I'm just not sure if they cost 1000 bucks or what. If that's the case then screw it-I'm buying an intercooler and enjoying my 14psi.
#4
Problem with upping the boost on an SC is that you're increasing the parasitic loss from driving the blower. So basically you're wasting that 6 psi. Yes, at lower rpm's, there will be more boost, but there is also more drag from the system. So it's not that feasible.
Originally posted by Neo Max
Isn't that the truth! As far as wategates go though they have ones out there capable of dumping the boost from turbos moving 1000cfm (which is roughly 28psi on our motors). I'm just not sure if they cost 1000 bucks or what. If that's the case then screw it-I'm buying an intercooler and enjoying my 14psi.
Isn't that the truth! As far as wategates go though they have ones out there capable of dumping the boost from turbos moving 1000cfm (which is roughly 28psi on our motors). I'm just not sure if they cost 1000 bucks or what. If that's the case then screw it-I'm buying an intercooler and enjoying my 14psi.
#5
No way! Other guys here run 11+ psi and aren't "wasting" the boost. These superchargers don't take too much power to turn compared to older designs and were designed to boost 5.0 and bigger engines. They aren't even breathing hard at 14psi much less 8psi or so.
#6
If you produce 14 psi. and release 6, then you're wasting it. 11 psi. isn't wasting it because the car is producing 11 psi. worth of power. 8 psi. using a 14 psi. pulley is getting 8 psi. worth of power for 14 psi. worth of drag.
Originally posted by Neo Max
No way! Other guys here run 11+ psi and aren't "wasting" the boost. These superchargers don't take too much power to turn compared to older designs and were designed to boost 5.0 and bigger engines. They aren't even breathing hard at 14psi much less 8psi or so.
No way! Other guys here run 11+ psi and aren't "wasting" the boost. These superchargers don't take too much power to turn compared to older designs and were designed to boost 5.0 and bigger engines. They aren't even breathing hard at 14psi much less 8psi or so.
#7
Oooooooohhh! I see what you are saying and my most humble appologies. Yes, you are correct that I would be wasting the 6psi that I dump but I would not then incurr the requirements of running 14psi (IC, bigger injectors, etc...). My whole idea is to have about the same peak power as just running a normal 8psi setup while enjoying the added low rpm boost that the high power boys are. While you are correct that anytime you move any physical object faster it takes more power to do so I don't think I would waste too much. Anyway, I'd trade 10hp for tons more low end. Thanks for your response and again I'm sorry if I sounded rude.
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JMag90
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08-25-2015 09:17 AM