Can you "feel" 10HP?
Thread Starter
Melting Slicks
Joined: Jun 2000
Posts: 2,161
Likes: 5
From: Knoxville TN
Can you "feel" 10HP?
How much HP change is needed before your seat of the pants feels it?
I was thinking of going to the LS6 intake, but wonder if I would notice 10HP.
Thanks
I was thinking of going to the LS6 intake, but wonder if I would notice 10HP.
Thanks
Melting Slicks
Joined: Jul 2001
Posts: 2,188
Likes: 0
From: not speeding just flying low
Re: Can you "feel" 10HP? (3rdtoy)
This guy Jake from a place called Corvette Concepts in Florida says he can feel 4 flywheel horsepower. :lol: Yep, that's what he told me and my buds at the Labor Day celebration at the museum.
I don't believe you would notice anything less than about 20 rear wheel horsepower. Just my opinion, for what it's worth.
I don't believe you would notice anything less than about 20 rear wheel horsepower. Just my opinion, for what it's worth.
Burning Brakes
Joined: Jul 2002
Posts: 869
Likes: 0
From: Nashville TN
Re: Can you "feel" 10HP? (3rdtoy)
I doubt you'll get 5HP. There are 450+HP cars running with the standard LS1 intake. On an unmodified LS1 the flow is limited more by valve size and ports than by intake runners. :cheers:
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
Re: Can you "feel" 10HP? (3rdtoy)
There is actually a pretty easy way to answer this question. There is a pretty good rule of thumb as to how much you RWHP changes with temperature changes. Hopefully someone with a lot of dyno experience will chime in. But I think it's going to be around 5 rwhp for every 10 degrees temp change (assuming humidity and barometric pressure are consistent). I know the difference of 25-30 degrees for me made a 2/10's and 2 MPH difference in my 1/4 times with similar 60' times.
So, do you feel the rwhp difference if the ambient temp is, say, 20 degrees different?
So, do you feel the rwhp difference if the ambient temp is, say, 20 degrees different?
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Re: Can you "feel" 10HP? (3rdtoy)
Most people notice the difference between pre2001 and 2001+ models.
Supposedly only a 5hp difference between them, so I would say yes.
Supposedly only a 5hp difference between them, so I would say yes.
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Instructor
Joined: Jul 2000
Posts: 168
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From: Memphis, TN.
Re: Can you "feel" 10HP? (3rdtoy)
but wonder if I would notice 10HP.
Seriously I doubt you could tell SOTP from 10hp.
Clint
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Re: Can you "feel" 10HP? (Y2Kvert4me)
Most people notice the difference between pre2001 and 2001+ models.
Supposedly only a 5hp difference between them, so I would say yes.
Supposedly only a 5hp difference between them, so I would say yes.
Ed
[Modified by C5XTASY, 9:55 PM 11/13/2002]
Burning Brakes
Joined: Jul 2002
Posts: 869
Likes: 0
From: Nashville TN
Re: Can you "feel" 10HP? (C5XTASY)
I agree C5XTASY, I have driven two '98s and an '01 and '02 and own a '99. They were all basically stock and, except for one of the '98s, they all felt about the same. One of the '98s did feel weaker, but it probably had some kind of problem. There can be more than a 10 HP difference among samples of the same year. Can you feel a 10HP difference? Yes if you are very familiar with your car at WOT. Though we would like to, probably most of us don't go WOT everyday, so we might not have a sensitive enough "seat" to notice 10HP. :cheers:
Burning Brakes
Joined: Aug 2001
Posts: 1,129
Likes: 0
Re: Can you "feel" 10HP? (1g1yy)
Positively 100% yes. I can feel 10 HP from a car I'm very familiar with easily.
It's very surprising how accurate the SOTP is now. I believe it takes 5-6 years of driving fast cars to get it down and know for sure what the car is doing with each minor change.
Ask a guy is he changes springs could he feel it....
A roadracer would tell you yes. Same with HP for us speed freaks. :D
It's very surprising how accurate the SOTP is now. I believe it takes 5-6 years of driving fast cars to get it down and know for sure what the car is doing with each minor change.
Ask a guy is he changes springs could he feel it....
A roadracer would tell you yes. Same with HP for us speed freaks. :D
Racer
Joined: Jul 2001
Posts: 281
Likes: 2
From: Henderson, NV
Re: Can you "feel" 10HP? (3rdtoy)
I haven't done the LS6 intake yet, but I can say that when I switched from the Corsa Indy's to the new Borla Stinger system I definitely could feel the SOTP difference. And the dyno that we did before/after on the same day showed almost a 10 rhwp / 7 rwtq difference.
I do plan on doing the LS6 intake switch on my 2000 FRC. Just can't seem to find the time between races to make the swap. :D
I do plan on doing the LS6 intake switch on my 2000 FRC. Just can't seem to find the time between races to make the swap. :D
Le Mans Master
Joined: Nov 1999
Posts: 7,695
Likes: 51
From: Imperial Beach CA
Re: Can you "feel" 10HP? (BluFRC)
No possible way and if you do it's more mouth than anything. That's less than 3% think about it. Like having a suitcase removed, think you can feel it.
☠☣☢ Semper Ebrius ☢☣☠
Joined: Jun 2001
Posts: 83,301
Likes: 4
From: Virginia
Cruise-In IV-V-VI-VII Veteran
St. Jude's Donor '06
Re: Can you "feel" 10HP? (Untouchable00)
It's been shown that the average person cannot perceive any change in speed or accelleration of less than 8%. This goes for both cars and computers. That would mean a change of about 24 Ft/Lbs. of RW torque in a stock C5 is what is needed for the average person to actually feel a difference (those not suffering from the placebo effect.) So someone who is given a ride in two different cars, but isn't told which one is quicker, would need an 8% difference to be able to tell, all else being equal.
[Modified by Scissors, 10:37 AM 11/14/2002]
[Modified by Scissors, 10:37 AM 11/14/2002]