Sport Z Magazine plenum results
12-19-2005, 06:57 PM
#21
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Originally Posted by devster
As in JUST the lower plenum and no spacer? How do you guys think a lower 300hp plenum would do combined with a spacer or an upper plenum? Has anyone tried? Maybe I should after the new year 
You reading this GSC Motorsports?
You reading this GSC Motorsports?
12-19-2005, 07:29 PM
#25
Originally Posted by Mike@Altered
Ugh yeah our plenum was the first they tested and after talking with them it looks like it wasn't installed properly!
12-19-2005, 09:35 PM
#27
As a contestant, I attended the plenum mod shoot out and saw the dyno plots that day.
To be fair to the guys at AAM, it looked like the ECU suddenly pulled timing on that particular set.... Almost as if the knock sensor was hit by one large knock and it suddenly yanked back timing.
I don't think their mod could have caused a decrease in power anywhere in the curve unless timing was pulled. By looking at the dyno plot it was fairly obvious what happened. Timing was abruptly pulled.
Although the rest of us didn't encounter it, ping was (is) a unpredictable risk that could have happened to any one of us at the competition. Chalk it up to random luck of the draw.
The ECU reacted to the random hit of a ping.
To be fair to the guys at AAM, it looked like the ECU suddenly pulled timing on that particular set.... Almost as if the knock sensor was hit by one large knock and it suddenly yanked back timing.
I don't think their mod could have caused a decrease in power anywhere in the curve unless timing was pulled. By looking at the dyno plot it was fairly obvious what happened. Timing was abruptly pulled.
Although the rest of us didn't encounter it, ping was (is) a unpredictable risk that could have happened to any one of us at the competition. Chalk it up to random luck of the draw.
The ECU reacted to the random hit of a ping.
12-19-2005, 11:12 PM
#28
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Originally Posted by Hydrazine
As a contestant, I attended the plenum mod shoot out and saw the dyno plots that day.
To be fair to the guys at AAM, it looked like the ECU suddenly pulled timing on that particular set.... Almost as if the knock sensor was hit by one large knock and it suddenly yanked back timing.
I don't think their mod could have caused a decrease in power anywhere in the curve unless timing was pulled. By looking at the dyno plot it was fairly obvious what happened. Timing was abruptly pulled.
Although the rest of us didn't encounter it, ping was (is) a unpredictable risk that could have happened to any one of us at the competition. Chalk it up to random luck of the draw.
The ECU reacted to the random hit of a ping.
To be fair to the guys at AAM, it looked like the ECU suddenly pulled timing on that particular set.... Almost as if the knock sensor was hit by one large knock and it suddenly yanked back timing.
I don't think their mod could have caused a decrease in power anywhere in the curve unless timing was pulled. By looking at the dyno plot it was fairly obvious what happened. Timing was abruptly pulled.
Although the rest of us didn't encounter it, ping was (is) a unpredictable risk that could have happened to any one of us at the competition. Chalk it up to random luck of the draw.
The ECU reacted to the random hit of a ping.
That makes sense.
I was running a stock dyno on a 97 Maxima SE I use to own, and the first two runs hit 168 fwhp, which is quite good for a stock 97, then on the third run the timing being advanced must have taken it's toll.
The ecu suddenly pulled timing, and the car made 149 fwhp!
If the test car leaned a little bit too much, due to better air flow, than it could have pinged.
Considering how well my car ran during it's last trip to the track, after the AAM install, and cheap gas, I have no doubt the increase is in the 10+rwhp area.
Last edited by VeeTec; 12-19-2005 at 11:16 PM.
12-19-2005, 11:18 PM
#29
IMO the plenums/spacers all do roughly the same
we're talking 1-2hp/tq difference at different rpms between all the different setups
I know there's minor differences, but it still isn't the hugest big deal difference out there. I know for NA it's important though, but still it's going to be different with each car with different mods
we're talking 1-2hp/tq difference at different rpms between all the different setups
I know there's minor differences, but it still isn't the hugest big deal difference out there. I know for NA it's important though, but still it's going to be different with each car with different mods
12-19-2005, 11:37 PM
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Originally Posted by Hydrazine
As a contestant, I attended the plenum mod shoot out and saw the dyno plots that day.
To be fair to the guys at AAM, it looked like the ECU suddenly pulled timing on that particular set.... Almost as if the knock sensor was hit by one large knock and it suddenly yanked back timing.
I don't think their mod could have caused a decrease in power anywhere in the curve unless timing was pulled. By looking at the dyno plot it was fairly obvious what happened. Timing was abruptly pulled.
Although the rest of us didn't encounter it, ping was (is) a unpredictable risk that could have happened to any one of us at the competition. Chalk it up to random luck of the draw.
The ECU reacted to the random hit of a ping.
To be fair to the guys at AAM, it looked like the ECU suddenly pulled timing on that particular set.... Almost as if the knock sensor was hit by one large knock and it suddenly yanked back timing.
I don't think their mod could have caused a decrease in power anywhere in the curve unless timing was pulled. By looking at the dyno plot it was fairly obvious what happened. Timing was abruptly pulled.
Although the rest of us didn't encounter it, ping was (is) a unpredictable risk that could have happened to any one of us at the competition. Chalk it up to random luck of the draw.
The ECU reacted to the random hit of a ping.
12-20-2005, 12:57 AM
#32
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Originally Posted by Diesel350
.THey also tested the lower 300hp plenum on the 03 Z and it did pretty well.
12-20-2005, 08:36 AM
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Originally Posted by Mike@Altered
Ugh yeah our plenum was the first they tested and after talking with them it looks like it wasn't installed properly! If you check the Modified Magazine article (two issues ago) they gained 13rwhp with our plenum.
We are talking about a follow-up article and re-dyno of the AAM to get the correct results.
We are talking about a follow-up article and re-dyno of the AAM to get the correct results.
Mike,
Please note that I personally believe you have a good product and our test results were not typical for the AAM Spacer and I said so in my article. However, my test observations and memory of our conservation certainly differ from yours. During our conversation you mentioned that we may not have installed it correctly. I said I didn't think so, but would look into it. I did.
We installed the AAM Spacer according to the supplied AAM instructions, including step 13. Tighten all bolts to 4.9 - 6.9 Nm (0.5 - 0.7 kgf-cm, 44 - 61 inch lbs). The engine idled smoothly, there were no vacuum leaks, the engine sounded strong during the dyno pulls and the air/fuel looked very good.
As for our telephone conversation... immediately after crunching the AAM Spacer numbers I called you and asked for your help in determining why your product didn't do well. At that time we agreed that our results were not typical and that you'd provide other stock engine-AAM Spacer dyno results. To date I have not received the promised information.
12-20-2005, 08:56 AM
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Originally Posted by Diesel350
9-10 HP increases in the 2000, 3500, 4000, 6400 RPM range. 3HP/3TQ peak gain
something just doe'snt make much sense..
if that really is the case.. then we all should just start trading plenums =o
12-20-2005, 10:23 AM
#40
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Originally Posted by devster
I'll have to check B & N tonight... 
Save time, save gas --- click on www.sportzmagazine.com and relax.
BTW, while you're clicking, order a Sport Z Magazine T-Shirt.
One year subscription plus one T-shirt. Less than a full tank of premium gas. It's ho, ho, ho time.
Merry Christmas everybody.
Bob