nitrous theory?
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From: Morton IL
nitrous theory?
Ok, if we can assume that high rpm and lots of torque are what kill motors, not hp per se since this is not a measured force, rather a calculated number...
I want to run a progressive system on my DP stock bottom end LS6. I'm thinking of tossing out the HP numbers (until I'm 'done' tuning like I'd like), and running a progressive shot that keeps my torque at 550 all the way up from 3000 - 6800ish. If the motor will live at 550 tq @ 3000, it should with 550 tq @ 6x00.
Assumming I was able to pull this off, then look at the rwhp numbers, and they would be crazy. for example....550 tq @ 6400 = 670 rwhp.
Thoughts?
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I want to run a progressive system on my DP stock bottom end LS6. I'm thinking of tossing out the HP numbers (until I'm 'done' tuning like I'd like), and running a progressive shot that keeps my torque at 550 all the way up from 3000 - 6800ish. If the motor will live at 550 tq @ 3000, it should with 550 tq @ 6x00.
Assumming I was able to pull this off, then look at the rwhp numbers, and they would be crazy. for example....550 tq @ 6400 = 670 rwhp.
Thoughts?
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Posts: 7,064
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From: Arizona
Re: nitrous theory? (wango tango)
the giant torque numbers come from the density of nitrous. Being able to feed 2x-3x the air into the combustion chamber due to its temperature is the real benefit of the sauce. You would have to start off with a 250 shot and progressively get smaller to keep the 550 RWT number. I have seen some turbo cars that have 550 torque at 3500, and they are not drivable at WOT. They just spin the tires or worse, change lanes while spinning. The benefit of nitrous is that you are able to have a nice upward curve, allowing you to get off the line and have the nitrous come on, in a nice upward graph, and spray more later in the RPMs to ensure traction.
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Joined: Jan 2004
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From: Morton IL
Re: nitrous theory? (ICULUKN-C5)
Isn't this bass ackwards? If you look at the torque curves when on the bottle, they get smaller, so you'd need to ramp up the juice, not down.
Here is what I'm thinking, keeping a 500 tq curve constant.
RPM Torque HP
3000 500 285.6054836
3250 500 309.4059406
3500 500 333.2063976
3750 500 357.0068545
4000 500 380.8073115
4250 500 404.6077685
4500 500 428.4082254
4750 500 452.2086824
5000 500 476.0091394
5250 500 499.8095963
5500 500 523.6100533
5750 500 547.4105103
6000 500 571.2109673
6250 500 595.0114242
6500 500 618.8118812
6750 500 642.6123382
7000 500 666.4127951
[Modified by wango tango, 1:20 PM 2/25/2004]
Here is what I'm thinking, keeping a 500 tq curve constant.
RPM Torque HP
3000 500 285.6054836
3250 500 309.4059406
3500 500 333.2063976
3750 500 357.0068545
4000 500 380.8073115
4250 500 404.6077685
4500 500 428.4082254
4750 500 452.2086824
5000 500 476.0091394
5250 500 499.8095963
5500 500 523.6100533
5750 500 547.4105103
6000 500 571.2109673
6250 500 595.0114242
6500 500 618.8118812
6750 500 642.6123382
7000 500 666.4127951
[Modified by wango tango, 1:20 PM 2/25/2004]
Le Mans Master
Joined: Aug 2001
Posts: 7,064
Likes: 18
From: Arizona
Re: nitrous theory? (wango tango)
I dont make 500 rwt till about 4500 and it goes up from there. I spray a 180 shot. So if you wanted to make 500 rwt at 3500, you would have to spray big at first, because your motor is not making as much torque... as your motor starts making torque you will not have to spray as much to maintain 500 rwt. I dont know why you would want to only make 500 rwt... as torque is what gets you off the line... but horse power is what gets you down the track.
