Dyno sheets?
Here is my baseline Stock plot VS very mildly modded plot. Both runs were done about 1 year apart, but under identical atmospheric conditions on the same DynoJet. (CF = .95 on both runs) My car is a 2000 Base 5spd Prelude.
Stock is stock - 162.8WHP/137.5lb.ft
Modded plot is only Mugen header, Mugen Cat-back, and stock airbox with removed air intake resonator - 173.4WHP/141.3lb.ft (not too bad for just a header and exhaust...
)
These two graphs show the same 2 dyno runs. One is SAE corrected power, the 2nd is actual power...
SAE corrected power:

ACTUAL power:

Andrew
[Modified by aklucsarits, 7:37 PM 9/25/2002]
Stock is stock - 162.8WHP/137.5lb.ft
Modded plot is only Mugen header, Mugen Cat-back, and stock airbox with removed air intake resonator - 173.4WHP/141.3lb.ft (not too bad for just a header and exhaust...
) These two graphs show the same 2 dyno runs. One is SAE corrected power, the 2nd is actual power...
SAE corrected power:

ACTUAL power:

Andrew
[Modified by aklucsarits, 7:37 PM 9/25/2002]
Actual HP is the power that my car actually put down at the wheels. The SAE correction factor is then applied to the actual results so that you can make more meaningful comparisions between other dyno plots that are also SAE corrected. So in theory, you should be able to comapare other dyno plots done on other dynos at different elevations done under different atmospheric conditions - as long as they are also SAE corrected...
This site explains it better than I could ever hope to:
http://wahiduddin.net/calc/calc_cf.htm
Here were MY conditions:
2000 Honda Prelude Base 5spd
Run 002 - Mar 21, 2001
Milage:~15,000
Conditions:49.65F, 30.17in.Hg., 0ft.elev, CF=0.95
Mods:None, Mobil1 oil
Run 003 - Nov 21, 2001
Milage:~27,000
Conditions:50.21F, 30.22in.Hg., 0ft.elev, CF=0.95
Mods:Mugen Header, Mugen CatBack, stock airbox, Removed air intake resonator, Mobil1 oil
I'll probably be going back to the same dyno soon. I have some more stuff on there now...
Andrew
This site explains it better than I could ever hope to:
http://wahiduddin.net/calc/calc_cf.htm
Here were MY conditions:
2000 Honda Prelude Base 5spd
Run 002 - Mar 21, 2001
Milage:~15,000
Conditions:49.65F, 30.17in.Hg., 0ft.elev, CF=0.95
Mods:None, Mobil1 oil
Run 003 - Nov 21, 2001
Milage:~27,000
Conditions:50.21F, 30.22in.Hg., 0ft.elev, CF=0.95
Mods:Mugen Header, Mugen CatBack, stock airbox, Removed air intake resonator, Mobil1 oil
I'll probably be going back to the same dyno soon. I have some more stuff on there now...
Andrew
If you wanna see some crazy "Actual HP" numbers you should see the dynos of my Prelude. 189 WHP with I/H/E, shaved flywheel and clutch, on a stock USDM H22A1. If I end up selling the motor and not building it, it would make for quite the "factory freak" engine for someone to pick up
Here Jonathan. This is one of my H23Vtec Motors that i built.
Just a mild set up with some cams,Prospeed headwork, Stock Crank, Stock Rods, Forged Pistons to prospeed spec, Custom Header,Prospeed Power Pulleys and Euro-R intake manifold.
Just a mild set up with some cams,Prospeed headwork, Stock Crank, Stock Rods, Forged Pistons to prospeed spec, Custom Header,Prospeed Power Pulleys and Euro-R intake manifold.
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Here Jonathan. This is one of my H23Vtec Motors that i built.
Just a mild set up with some cams,Prospeed headwork, Stock Crank, Stock Rods, Forged Pistons to prospeed spec, Custom Header,Prospeed Power Pulleys and Euro-R intake manifold.
Just a mild set up with some cams,Prospeed headwork, Stock Crank, Stock Rods, Forged Pistons to prospeed spec, Custom Header,Prospeed Power Pulleys and Euro-R intake manifold.
SAE corrected stock numbers....yummy torque
over 100,000 miles on the engine, just an intake

Car runs 14.8 at the track so I'm happy
[Modified by satan_srv, 10:08 AM 9/26/2002]
over 100,000 miles on the engine, just an intake

Car runs 14.8 at the track so I'm happy
[Modified by satan_srv, 10:08 AM 9/26/2002]
330whp@14.7psi
320ft/lbs torque
I know its a h23a, but i just wanted to share. Stock ignition fell flat on its face, couldnt run any more boost due to this... Once i put the crane hi-6tr and the ps92 coil i should be able to run 20+psi.
[Modified by GudeH23a, 10:10 AM 9/26/2002]
Great looking graphs guys!
On average, do the JDM h22's put down more HP/TQ stock than USDM, or is it about the same? I believe the C/R is higher, isn't it?
On average, do the JDM h22's put down more HP/TQ stock than USDM, or is it about the same? I believe the C/R is higher, isn't it?
Great looking graphs guys!
On average, do the JDM h22's put down more HP/TQ stock than USDM, or is it about the same? I believe the C/R is higher, isn't it?
On average, do the JDM h22's put down more HP/TQ stock than USDM, or is it about the same? I believe the C/R is higher, isn't it?
sweet...
While I'm on the h22 subject, Do any of you guys have any pros/cons of the Mugen 11.5:1 Headgasket?
Is that too high on 93 octane gas and a street car? I'm thinking about getting it..but don't really know how safe it would be on a stock internal/93 octane car.
While I'm on the h22 subject, Do any of you guys have any pros/cons of the Mugen 11.5:1 Headgasket?
Is that too high on 93 octane gas and a street car? I'm thinking about getting it..but don't really know how safe it would be on a stock internal/93 octane car.
Buddy runs 94 on Arias 11.5 pistons. No problems but he has had his ECU reprogrammed.
aklucsarits: your dyno really shows how restrictive the stock header/exhaust is. Once the engine gets over 6000rpms the stock piping can't handle all that gas!
aklucsarits: your dyno really shows how restrictive the stock header/exhaust is. Once the engine gets over 6000rpms the stock piping can't handle all that gas!
What mount kit is being used on the EF in that album?
it's honda rubber mounts and brackets, the rear engine mount is from a 90-93 integra custom made to bolt to the rear crossmember.
Is this something you personally fabricated/arranged? Seems like a nice install


