Most 5.0L horsepower!
#1
Most 5.0L horsepower!
Okay lets see who has the post powerful 5.0L 32V engine out there (or earlier euro S motors). Three catagories:
1. Normally aspirated and smog (with cats) legal
2. Normally aspirated (no cats)
3. Blown (super or turbo or nitrous)
Ideally lets use dyno runs (please post graph) but G-techs or similar will work.
The best catagory #1 I have heard of is around 340rwhp, with blowers going over 500rwhp...this should be good so I'll start
1. Using a Gtech averages about 265 rwhp for a 88 auto with RMB and K&N.
1. Normally aspirated and smog (with cats) legal
2. Normally aspirated (no cats)
3. Blown (super or turbo or nitrous)
Ideally lets use dyno runs (please post graph) but G-techs or similar will work.
The best catagory #1 I have heard of is around 340rwhp, with blowers going over 500rwhp...this should be good so I'll start
1. Using a Gtech averages about 265 rwhp for a 88 auto with RMB and K&N.
#3
Originally Posted by mspiegle
you probably shouldn't accept the gtech measurment
#5
a search on google should yield alot of results. I like this site: http://www.smokemup.com/
Well, if you're going to supply a gtech number, mentioning the weight used would be good since that's the major factor that varies.
Well, if you're going to supply a gtech number, mentioning the weight used would be good since that's the major factor that varies.
#6
Tim Murphy's supercharged 5.0 liter S4:
There are a lot of things that can affect the G-Tech horsepower numbers. Depending on what weight you enter, you can make their horsepower results say anything you want. Even if the weight is correct, and all other coinditions are perfect, they don't take into account aerodynamic drag, so the numbers will not reflect the actual rear wheel horsepower anyway.
There are a lot of things that can affect the G-Tech horsepower numbers. Depending on what weight you enter, you can make their horsepower results say anything you want. Even if the weight is correct, and all other coinditions are perfect, they don't take into account aerodynamic drag, so the numbers will not reflect the actual rear wheel horsepower anyway.
#7
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Originally Posted by IcemanG17
1. Using a Gtech averages about 265 rwhp for a 88 auto with RMB and K&N.
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#9
Originally Posted by Z
Tim Murphy's supercharged 5.0 liter S4:
There are a lot of things that can affect the G-Tech horsepower numbers. Depending on what weight you enter, you can make their horsepower results say anything you want. Even if the weight is correct, and all other coinditions are perfect, they don't take into account aerodynamic drag, so the numbers will not reflect the actual rear wheel horsepower anyway.
There are a lot of things that can affect the G-Tech horsepower numbers. Depending on what weight you enter, you can make their horsepower results say anything you want. Even if the weight is correct, and all other coinditions are perfect, they don't take into account aerodynamic drag, so the numbers will not reflect the actual rear wheel horsepower anyway.
#10
Well, I still have some fuel issues to fix eventually, that are hindering things a little, but FWIW my best numbers are in my sig line. This is with MSDS headers, and no cats, on a DynoJet 248C.
#11
Z
Murphys car is a 5 speed correct? How much boost is he running to get those numbers? Has to be alot!
Nicole
The PO put on the K&N, I checked it the other day and the filter is not leaking oil on the MAF, but still looks good
Murphys car is a 5 speed correct? How much boost is he running to get those numbers? Has to be alot!
Nicole
The PO put on the K&N, I checked it the other day and the filter is not leaking oil on the MAF, but still looks good
#12
Originally Posted by IcemanG17
Z
Murphys car is a 5 speed correct? How much boost is he running to get those numbers? Has to be alot!
Murphys car is a 5 speed correct? How much boost is he running to get those numbers? Has to be alot!
#13
Z
Thats alot of power for a stock compression 5.0L car. Tim must have a complete exhaust with upgraded injectors & more to make that kind of power. So I estimate that his car was about 300whp before the SC....which is quite good. So what is the boost limit for a stock compression car? Generally as boost goes up engine life goes down, how long does will his engine last at those HP numbers?
Thanks
Thats alot of power for a stock compression 5.0L car. Tim must have a complete exhaust with upgraded injectors & more to make that kind of power. So I estimate that his car was about 300whp before the SC....which is quite good. So what is the boost limit for a stock compression car? Generally as boost goes up engine life goes down, how long does will his engine last at those HP numbers?
Thanks
#14
Originally Posted by IcemanG17
Tim must have a complete exhaust with upgraded injectors & more to make that kind of power.
Originally Posted by IcemanG17
Generally as boost goes up engine life goes down, how long does will his engine last at those HP numbers?
#15
Captain Obvious
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From: Cambridge, Ontario, Canada
This is the result of one calculation:
Your Results
Your 1985 Porsche 928S weighs about 3625 pounds and can complete a 1/4 mile in about 13.541 seconds. That means that you've got about 288.56 HP at the wheels, and about 375.13 HP at the flywheel.
I've also used the following fromula to double check: HP = (Weight / ((ET/5.825)^3))
and it resulted with the identical value as the other calculator yield as RWHP (288.56rwhp).
I used the following values in both cases: Wehicle weight (from 928 registry) 3351lb, drive weight 274lb, ET 13.541 sec. The track is almost at sea level therefore, no alterations were needed to the original time.
I'm a bit baffled as to the accuracy of these results. Is the formula above accurate for rwhp calculation?
Your Results
Your 1985 Porsche 928S weighs about 3625 pounds and can complete a 1/4 mile in about 13.541 seconds. That means that you've got about 288.56 HP at the wheels, and about 375.13 HP at the flywheel.
I've also used the following fromula to double check: HP = (Weight / ((ET/5.825)^3))
and it resulted with the identical value as the other calculator yield as RWHP (288.56rwhp).
I used the following values in both cases: Wehicle weight (from 928 registry) 3351lb, drive weight 274lb, ET 13.541 sec. The track is almost at sea level therefore, no alterations were needed to the original time.
I'm a bit baffled as to the accuracy of these results. Is the formula above accurate for rwhp calculation?