Dyno'd Stillen Hi-Flow Airbox
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Join Date: Apr 2005
Location: Arlington TX
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Dyno'd Stillen Hi-Flow Airbox
The Stillen really roars above 3,500 RPM, feels like it pulls harder. I kept the windows up the first couple of time I drove the car. So I wouldn't perceive the sound of the exhaust as a gain in performance.
The dyno shows a gain that is very negligible
At this time I have to consider the Stillen Hi-Flow Airbox as sound mod for the exhaust
Before
Z-tube+K&N, 1/2" MD spacer with ISO Kit, Invidia G200
249.00 HP _ 229.91 FT-LB
After
Z-tube+Stillen Hi-Flow Airbox, 1/2" MD spacer with ISO Kit, Invidia G200
250.36 HP _ 229.12 FT-LB
I think I'll go over all my connections again. I did have some problems with the 4 bolts connecting the MAF tube to the air box. It might not be a flush connection.
The dyno shows a gain that is very negligible
At this time I have to consider the Stillen Hi-Flow Airbox as sound mod for the exhaust
Before
Z-tube+K&N, 1/2" MD spacer with ISO Kit, Invidia G200
249.00 HP _ 229.91 FT-LB
After
Z-tube+Stillen Hi-Flow Airbox, 1/2" MD spacer with ISO Kit, Invidia G200
250.36 HP _ 229.12 FT-LB
I think I'll go over all my connections again. I did have some problems with the 4 bolts connecting the MAF tube to the air box. It might not be a flush connection.
#2
#3
At least you posted the results therefore you get a big pat on the back. As for the bolts, I doubt it's your problem because if there was a leak there you'd see it on the graph because the MAF would get some erratic readings and the graph would be pretty jumpy, especially in the lower rpms.
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1) Was the car driven for a while for the ECU to learn the intake? Or was it a bolt on right after and dyno again? Because the ECU needs to learn.
Originally Posted by G35StrongMan
The Stillen really roars above 3,500 RPM, feels like it pulls harder. I kept the windows up the first couple of time I drove the car. So I wouldn't perceive the sound of the exhaust as a gain in performance.
The dyno shows a gain that is very negligible
At this time I have to consider the Stillen Hi-Flow Airbox as sound mod for the exhaust
Before
Z-tube+K&N, 1/2" MD spacer with ISO Kit, Invidia G200
249.00 HP _ 229.91 FT-LB
After
Z-tube+Stillen Hi-Flow Airbox, 1/2" MD spacer with ISO Kit, Invidia G200
250.36 HP _ 229.12 FT-LB
I think I'll go over all my connections again. I did have some problems with the 4 bolts connecting the MAF tube to the air box. It might not be a flush connection.
The dyno shows a gain that is very negligible
At this time I have to consider the Stillen Hi-Flow Airbox as sound mod for the exhaust
Before
Z-tube+K&N, 1/2" MD spacer with ISO Kit, Invidia G200
249.00 HP _ 229.91 FT-LB
After
Z-tube+Stillen Hi-Flow Airbox, 1/2" MD spacer with ISO Kit, Invidia G200
250.36 HP _ 229.12 FT-LB
I think I'll go over all my connections again. I did have some problems with the 4 bolts connecting the MAF tube to the air box. It might not be a flush connection.
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Hmmm interesting, this dynoed is flawed. We are missing everything before 4k of rpms for the stock intake. Not a good comparison IMHO.
We all know that there have been controlled enviroment dynos in the past and the CAI from Stillen showed a gain.
We all know that there have been controlled enviroment dynos in the past and the CAI from Stillen showed a gain.
Originally Posted by G35StrongMan
The Stillen really roars above 3,500 RPM, feels like it pulls harder. I kept the windows up the first couple of time I drove the car. So I wouldn't perceive the sound of the exhaust as a gain in performance.
The dyno shows a gain that is very negligible
At this time I have to consider the Stillen Hi-Flow Airbox as sound mod for the exhaust
Before
Z-tube+K&N, 1/2" MD spacer with ISO Kit, Invidia G200
249.00 HP _ 229.91 FT-LB
After
Z-tube+Stillen Hi-Flow Airbox, 1/2" MD spacer with ISO Kit, Invidia G200
250.36 HP _ 229.12 FT-LB
I think I'll go over all my connections again. I did have some problems with the 4 bolts connecting the MAF tube to the air box. It might not be a flush connection.
The dyno shows a gain that is very negligible
At this time I have to consider the Stillen Hi-Flow Airbox as sound mod for the exhaust
Before
Z-tube+K&N, 1/2" MD spacer with ISO Kit, Invidia G200
249.00 HP _ 229.91 FT-LB
After
Z-tube+Stillen Hi-Flow Airbox, 1/2" MD spacer with ISO Kit, Invidia G200
250.36 HP _ 229.12 FT-LB
I think I'll go over all my connections again. I did have some problems with the 4 bolts connecting the MAF tube to the air box. It might not be a flush connection.
#6
Originally Posted by G35_TX
1) Was the car driven for a while for the ECU to learn the intake? Or was it a bolt on right after and dyno again? Because the ECU needs to learn.
With the Stillen box, I would put my life savings on a gain. I will guarantee it. Something isn't right here........
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Join Date: Apr 2005
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I disconnected the negative battery cable and pumped the brake pedal to reset the ECU.
Then I drove it hard, the computer was shifting @ 6200 RPM. The car will break traction in 1st and 2nd .
If I manual shift, 6,500rpm, I‘ve broke traction shifting into 3rd.
I drove it Saturday after I installed the Stillen and on Sunday. The next day I was on Thursday to the dyno.
I’ve had 5 dyno’s done at the same shop. 3 different people have run the dyno and each have started the sampling at different RPM levels.
The Stillen is loud, but I can only compare it to having the K&N drop-in filter.
I honestly expected to see a gain on the dyno, since the car feels stronger. I wonder if it’s possible that I’m maxed out for bolt-ons. Intake, Z-tube, ˝”spacer and exhaust.
I have a KJR light weight pulley that I might have installed and dyno’d this week .
Then I drove it hard, the computer was shifting @ 6200 RPM. The car will break traction in 1st and 2nd .
If I manual shift, 6,500rpm, I‘ve broke traction shifting into 3rd.
I drove it Saturday after I installed the Stillen and on Sunday. The next day I was on Thursday to the dyno.
I’ve had 5 dyno’s done at the same shop. 3 different people have run the dyno and each have started the sampling at different RPM levels.
The Stillen is loud, but I can only compare it to having the K&N drop-in filter.
I honestly expected to see a gain on the dyno, since the car feels stronger. I wonder if it’s possible that I’m maxed out for bolt-ons. Intake, Z-tube, ˝”spacer and exhaust.
I have a KJR light weight pulley that I might have installed and dyno’d this week .
#11
Originally Posted by G35StrongMan
I disconnected the negative battery cable and pumped the brake pedal to reset the ECU.
Then I drove it hard, the computer was shifting @ 6200 RPM. The car will break traction in 1st and 2nd .
If I manual shift, 6,500rpm, I‘ve broke traction shifting into 3rd.
I drove it Saturday after I installed the Stillen and on Sunday. The next day I was on Thursday to the dyno.
I’ve had 5 dyno’s done at the same shop. 3 different people have run the dyno and each have started the sampling at different RPM levels.
The Stillen is loud, but I can only compare it to having the K&N drop-in filter.
I honestly expected to see a gain on the dyno, since the car feels stronger. I wonder if it’s possible that I’m maxed out for bolt-ons. Intake, Z-tube, ˝”spacer and exhaust.
I have a KJR light weight pulley that I might have installed and dyno’d this week .
Then I drove it hard, the computer was shifting @ 6200 RPM. The car will break traction in 1st and 2nd .
If I manual shift, 6,500rpm, I‘ve broke traction shifting into 3rd.
I drove it Saturday after I installed the Stillen and on Sunday. The next day I was on Thursday to the dyno.
I’ve had 5 dyno’s done at the same shop. 3 different people have run the dyno and each have started the sampling at different RPM levels.
The Stillen is loud, but I can only compare it to having the K&N drop-in filter.
I honestly expected to see a gain on the dyno, since the car feels stronger. I wonder if it’s possible that I’m maxed out for bolt-ons. Intake, Z-tube, ˝”spacer and exhaust.
I have a KJR light weight pulley that I might have installed and dyno’d this week .
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