Headguy may be looking at the same thing I noticed, the very impressive BSFC numbers.
If the numbers are correct, they have achieved tremendous efficiency for an engine with the parameters given.
Another possibility is the HP numbers are inflated to make the customer happy, which would account for the unrealistic BSFC numbers.
Oh come on Charlie, there is no happy dynos out there. It's a myth. I bet that will get 25 miles to the gallon. That's the first thing I look at, the bsfc's, But the customer is happy, that's all that matters.
The customer is only happy until he brings his car to the track and is 20mph and 2.5 seconds slower than the dyno suggests.
Could be, I have noticed the trend here where everyone else dyno #'s are wrong.
Just curious how one would inflate the #'s to create this situation and what would it make if the #'s were correct?
Just wondering because this 520 horse 357 was low to mid 4's straight motor but with a lean jetted 150 shot it dropped, I think being lean hurt the tq numbers.
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Oh come on Charlie, there is no happy dynos out there. It's a myth. I bet that will get 25 miles to the gallon. That's the first thing I look at, the bsfc's, But the customer is happy, that's all that matters.
The customer is only happy until he brings his car to the track and is 20mph and 2.5 seconds slower than the dyno suggests.
Could be, I have noticed the trend here where everyone else dyno #'s are wrong.
Just curious how one would inflate the #'s to create this situation and what would it make if the #'s were correct?
Just wondering because this 520 horse 357 was low to mid 4's straight motor but with a lean jetted 150 shot it dropped, I think being lean hurt the tq numbers.
Fuel flow for the nitrous not being measured by the fuel flow meter. ?
The customer is only happy until he brings his car to the track and is 20mph and 2.5 seconds slower than the dyno suggests.
Could be, I have noticed the trend here where everyone else dyno #'s are wrong.
Just curious how one would inflate the #'s to create this situation and what would it make if the #'s were correct?
Just wondering because this 520 horse 357 was low to mid 4's straight motor but with a lean jetted 150 shot it dropped, I think being lean hurt the tq numbers.
Fuel flow for the nitrous not being measured by the fuel flow meter. ?
Adding correction factor to an oxidized or boosted engine.
The customer is only happy until he brings his car to the track and is 20mph and 2.5 seconds slower than the dyno suggests.
Could be, I have noticed the trend here where everyone else dyno #'s are wrong.
Just curious how one would inflate the #'s to create this situation and what would it make if the #'s were correct?
Just wondering because this 520 horse 357 was low to mid 4's straight motor but with a lean jetted 150 shot it dropped, I think being lean hurt the tq numbers.
Fuel flow for the nitrous not being measured by the fuel flow meter. ?
The customer is only happy until he brings his car to the track and is 20mph and 2.5 seconds slower than the dyno suggests.
Could be, I have noticed the trend here where everyone else dyno #'s are wrong.
Just curious how one would inflate the #'s to create this situation and what would it make if the #'s were correct?
Just wondering because this 520 horse 357 was low to mid 4's straight motor but with a lean jetted 150 shot it dropped, I think being lean hurt the tq numbers.
Fuel flow for the nitrous not being measured by the fuel flow meter. ?
Could be, I will ask the dyno operator, If I remember right it was one pump and line t'ed off but maybe only one side was metered.
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THE ABOVE POST IN NO WAY REFLECTS THE VIEWS OF SPEED TALK OR IT'S MEMBERS AND SHOULD BE VIEWED AS ENTERTAINMENT ONLY...Thanks, The Management!
GARY C wrote: ↑Mon Jun 25, 2018 7:15 pm
Could be, I have noticed the trend here where everyone else dyno #'s are wrong.
Just curious how one would inflate the #'s to create this situation and what would it make if the #'s were correct?
Just wondering because this 520 horse 357 was low to mid 4's straight motor but with a lean jetted 150 shot it dropped, I think being lean hurt the tq numbers.
Fuel flow for the nitrous not being measured by the fuel flow meter. ?
Could be, I will ask the dyno operator, If I remember right it was one pump and line t'ed off but maybe only one side was metered.
Let's say it takes .42lbs/hr to make 1hp. And you make 1hp. Let's say you correct it to 2 hp. You still only burned the same fuel for one hp . How many lbs/hr did you use?
I don't agree with people adding a correction factor to a baro pressure when they are effectively adjusting their own baro pressure with boost or nitrous
Fuel flow for the nitrous not being measured by the fuel flow meter. ?
Could be, I will ask the dyno operator, If I remember right it was one pump and line t'ed off but maybe only one side was metered.
Let's say it takes .42lbs/hr to make 1hp. And you make 1hp. Let's say you correct it to 2 hp. You still only burned the same fuel for one hp . How many lbs/hr did you use?
I don't agree with people adding a correction factor to a baro pressure when they are effectively adjusting their own baro pressure with boost or nitrous
I think that is on the dyno sheet but I don't know if both lines were being measured.
If you change the baro from NA how would you compare the gain from the power adder?
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THE ABOVE POST IN NO WAY REFLECTS THE VIEWS OF SPEED TALK OR IT'S MEMBERS AND SHOULD BE VIEWED AS ENTERTAINMENT ONLY...Thanks, The Management!
Fuel flow for the nitrous not being measured by the fuel flow meter. ?
Could be, I will ask the dyno operator, If I remember right it was one pump and line t'ed off but maybe only one side was metered.
Let's say it takes .42lbs/hr to make 1hp. And you make 1hp. Let's say you correct it to 2 hp. You still only burned the same fuel for one hp . How many lbs/hr did you use?
I don't agree with people adding a correction factor to a baro pressure when they are effectively adjusting their own baro pressure with boost or nitrous
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mag2555 wrote: ↑Wed Jun 20, 2018 6:16 ama slightly under Camed street / strip car is fun to drive 95% of the time where as a slightly over Camed car is not fun to drive 75% of the time!
That's a sad truth too many people learn the hard way.
mag2555 wrote: ↑Wed Jun 20, 2018 6:16 ama slightly under Camed street / strip car is fun to drive 95% of the time where as a slightly over Camed car is not fun to drive 75% of the time!
That's a sad truth too many people learn the hard way.