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Dynoed my GSR motor

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Old 02-23-2004 | 07:24 PM
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AEM SRI and DC JDM 4-1 with carsound high flow.

Originally Posted by qtiger
Pretty good for a 60mm exhaust. What header and intake?
Old 02-23-2004 | 08:02 PM
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/me wants Nice #'s
Old 02-24-2004 | 01:59 AM
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Numbers are good for what it has. When my 95 GSR hit 100k miles, I put down 160 whp and 120 lb. tq...w/only an intake. So, I believe those numbers are possible. Can you post a chart, I'd like to see the curve since that is more important.
Old 02-24-2004 | 05:04 AM
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This is the best i can do since the viewer i use doesnt allow me to save the whole picture, i can take a picture of the screen.
Originally Posted by cheezthis
Numbers are good for what it has. When my 95 GSR hit 100k miles, I put down 160 whp and 120 lb. tq...w/only an intake. So, I believe those numbers are possible. Can you post a chart, I'd like to see the curve since that is more important.
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Old 02-24-2004 | 06:04 AM
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Originally Posted by SuperStar19
This is the best i can do since the viewer i use doesnt allow me to save the whole picture, i can take a picture of the screen.

fairly consistant powerband all the way through...kinda suprising you don't even see any sort of spike when you hit vtec though :thinking:
Old 02-24-2004 | 06:31 AM
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Originally Posted by RB
fairly consistant powerband all the way through...kinda suprising you don't even see any sort of spike when you hit vtec though :thinking:

You can't tell cause there is no axis label either place. That could be 6000-8000 rpms only. If you can take a screen shot (alt+prtin screen) then you can post a file of the whole thing. If you have the dyno run files you can pull down the dynojet viewer and overlay any run you like.

160 with an Intake only is just about an absurd statement. A GSR on a dynojet stock makes about 140 whp. That is a modest 18% drivetrain loss. Figure 10 whp from an Intake (CAI: AEM, Iceman . . ) then you get to 150. To get 160 at the wheels you would have to be making 25 more hp than stock at the crank off just an intake. Like I said above unlikely. Tune maybe but still unlikely. I have seen some Type-Rs make only 163-164 with an Intake.

One thing to make clear is what type of Dyno you ran on. A DynoJet and Dynapack run MUCH higher numbers while a Mustang Dyno will show much lower numbers. This means nothing except that the numbers are not comparable. Most people speak in Dynojet numbers so if you dyno'd on something else that info woudl help.
Old 02-24-2004 | 06:58 AM
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Originally Posted by Asahi
You can't tell cause there is no axis label either place. That could be 6000-8000 rpms only. If you can take a screen shot (alt+prtin screen) then you can post a file of the whole thing. If you have the dyno run files you can pull down the dynojet viewer and overlay any run you like.

160 with an Intake only is just about an absurd statement. A GSR on a dynojet stock makes about 140 whp. That is a modest 18% drivetrain loss. Figure 10 whp from an Intake (CAI: AEM, Iceman . . ) then you get to 150. To get 160 at the wheels you would have to be making 25 more hp than stock at the crank off just an intake. Like I said above unlikely. Tune maybe but still unlikely. I have seen some Type-Rs make only 163-164 with an Intake.

One thing to make clear is what type of Dyno you ran on. A DynoJet and Dynapack run MUCH higher numbers while a Mustang Dyno will show much lower numbers. This means nothing except that the numbers are not comparable. Most people speak in Dynojet numbers so if you dyno'd on something else that info woudl help.
Trey...I'll post it up later if you don't believe me. It's a dynojet though, not mustang or dynapack. Absurd? I don't think so. I see a lot of stock GSR run around 150 whp. Stock ITR's...165 whp. Double-A made 165...bone stock 97 ITR.
Old 02-24-2004 | 10:55 AM
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150whp here with intake/header/exhaust on a MUSTANG DYNO (aka ITS THE ACTUAL POWER)
Old 02-24-2004 | 11:12 AM
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Originally Posted by SuperStar19
I dynoed my motor yesterday with SRI/Header/Hi-Flow cat/Apex-N1.
My put down 166whp and 125lbs or torque.

From the last dyno in october there is a 2lb loss or torque which may have come from the install of the larger header and cat, but its not a huge loss so it really could have been something like the car not being cool enough.
Don't worry about a 2lb ft difference. This can be attributed to a lot of things (tire pressure, the way the car is positioned on the dyno, etc.). Area under the curve is key. As long as it increases from mod to mod, you're heading in the right direction.
Old 02-24-2004 | 11:51 AM
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Originally Posted by cheezthis
Trey...I'll post it up later if you don't believe me. It's a dynojet though, not mustang or dynapack. Absurd? I don't think so. I see a lot of stock GSR run around 150 whp. Stock ITR's...165 whp. Double-A made 165...bone stock 97 ITR.
AN ITR has 25 more crank HP than a GSR. It should make about 160-165. THat is fairly high for a 97/98 ITR but within reason. GSR's should dyno stock at 139-142. I've worked on and tuned GSR's and properly modded and tuned I can see 160. But that woudl mean Intake/2.5" Collector Header/Exhaust and Tuned. THere are lots of different readouts a Dynojet can produce. SAE Corrected compensates for altitude and temperature. Just possible things to vary readings. Even DynoJets can vary but more than 5 whp is a lot of error or variance.

150 on a Mustang Dyno is pretty high as well. Can anyone get the actual dynorun files? We can overlay them and compare them to other cars that way. Also anyone doing runs in 3rd gear is artifically pumping dyno numbers. This works on some cars and isn't indicative of the actual power. Not accusing anyone just saying peak means very little regardless but especially when you do things like run in 3rd gear or pull a power steering belt you use daily.


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