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 Post subject: Is there a formula...
PostPosted: Thu May 25, 2017 2:47 pm 
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Joined: Sat Sep 12, 2015 4:38 pm
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Location: Coventry
I was chatting to someone today who is interested in Nitrous, and I was explaining that Nitrous adds more torque than horse power.

Then they asked the question... How much extra torque does nitrous add ?

and I have to be honest i didnt know :?

So my question is... is there some kind of formula which roughly works out how much extra torque compared to horse power nitrous adds ?

Thanks in advance 8)

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Cars: Ford Mk3 Capri 2.1 and Ford Mk7 Fiesta zetec s (with nitrous)


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 Post subject: Re: Is there a formula...
PostPosted: Thu May 25, 2017 6:31 pm 
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Location: Orlando, Fl in 'Merrrrica!
BHP * 5252 / rpm = Trq (ft. lbs)

Trq (ft. lbs) / 5252 * rpm = BHP


50 * 5252 / 3000 = ~ 87.5 Ft Lbs

87.5 / 5252 * 3000 = ~ 50 BHP

:yes: :yes:


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 Post subject: Re: Is there a formula...
PostPosted: Thu May 25, 2017 7:21 pm 
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Cheers :cheers:

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 Post subject: Re: Is there a formula...
PostPosted: Wed Jun 14, 2017 9:22 pm 
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Based on many results that I've achieved and had reported to me, an 'average' engine will make at least as much torque as it does power, so a 25 HP jet will make at least 25 ftlbs of torque. However, just as some engines make more power from a given amount of nitrous, some engines will make more torque and sometimes, that also applies relative to the power increase.

The fact of the matter is this; there are very few constants that apply equally across a wide range of engines, each has to be measured in its own right, which is where the formulas given by Alex come in handy.

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 Post subject: Re: Is there a formula...
PostPosted: Wed Jun 14, 2017 9:41 pm 
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Joined: Sat Sep 12, 2015 4:38 pm
Posts: 250
Location: Coventry
Noswizard wrote:
Based on many results that I've achieved and had reported to me, an 'average' engine will make at least as much torque as it does power, so a 25 HP jet will make at least 25 ftlbs of torque. However, just as some engines make more power from a given amount of nitrous, some engines will make more torque and sometimes, that also applies relative to the power increase.

The fact of the matter is this; there are very few constants that apply equally across a wide range of engines, each has to be measured in its own right, which is where the formulas given by Alex come in handy.


Great to see you on the forum again, and thank you for the informative reply :yes:

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