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I just had AEM install their new Brute Force intake system i my Armada. This is the same kit used on the Titan. Dyno gains on the Titan show the largest gain of 17.9 whp around 3750 rpm and 25lbs of torque around 3750 rpm. THe kit comes chrome with a heat shield and a large filter. I will have pics soon. http://trucks.aempower.com/product_intake.asp
 

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My Armada was used as a test vehicle so it was free. The cost MSRP is like $360 but I'm sure you can get for alot less than that.
 

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Now -- if only we could get side-by-side dyno runs to compare the available intakes. I'm waiting for conclusive evidence of which provides the best performance gains before pulling the trigger. I'd like to see the same exercise done with the available exhausts... :cool:
 

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Notice no data below 3000 rpm. Wonder if that is because there is a power loss at lower rpms? And, where do you spend most of your time? Above or below 3000 rpm? Especially when you tow!

Keith
 

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morpheus said:
Thanks -- couple of comments. Would like to see this same plot with other manufacturers overlaid on top.

Keith has a great point -- where are the figures at the low rpms -- worried about losing torque there -- although I think this problem has occurred mostly with aftermarket exhausts.

More importantly, and maybe I'm missing something why aren't we hitting even the quoted numbers from Nissan?? What am I forgetting?
 

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EightmanVT said:
More importantly, and maybe I'm missing something why aren't we hitting even the quoted numbers from Nissan?? What am I forgetting?
I think it is showing the HP at the rear wheels and not the crank....you are seeing the drive train losses. I'm not much of a gear head but that's how I've explained it to myself :)
 

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Pics?

How about those pics?

Also, how has your performance been? Any problems with the ECU, or anything else for that matter?

Thanks!
 

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I will have pics by this weekend.
No CEL. performance seems really good,better throttle response.
Keep in mind that the dyno is from a titan and not an armada, although the share the same power train the exhaust sytem may differ enough to make a differense and the ECU may be programmed a little different (different shift points etc.)
 

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Low RPM watch

Good info here. On the pdf that shows OEM vs. AEM, the 3100 rpm concerns me.
Even cruising on the freeway at 80mph, Armada is barely running at 2,000rpm. Plenty of Torque.

My fear is to lose any of this low end torque where we spent 90% of our time there. There is very little data on intake and exhaust below 3,000rpm.

WHY????

THis is probably the most important rpm's we need to see.
 

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I'm also interested in why we see that anomaly in the region between 2950 and 3150 rpms?? That seems odd to have a drop in hp and torque like that?? Any experts here that can offer an explanation to this??? This doesn't seem like a good thing.
 

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Thought I'd bump this -- since we should be hearing about performance from the Volant install soon. Any further feedback -- satisfied or not ?? with the AEM??
 

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EightmanVT said:
I'm also interested in why we see that anomaly in the region between 2950 and 3150 rpms?? That seems odd to have a drop in hp and torque like that?? Any experts here that can offer an explanation to this??? This doesn't seem like a good thing.
I am the engineer responsible for designing this kit. As for that dip early in the curve, there is a simple explanation. The Titan dyno'ed had, of course, an automatic transmission. ATs can cause some problems at the begining of a dyno run. Before the run, the throttle is closed, as soon as the run starts, the throttle is punched and sometimes the torque converter slips or locks at the begining of the run. This causes inconsistencies in the begining of the dyno chart. That is what happened when the AEM intake was dyno'ed. I have driven the Titan with the intake installed, and believe me, you have not lost any low end power with it installed. Ask morpheus if you don't believe me. I would have prefered to dyno a manual Titan, but those don't exist. An MT offers more consistant dyno charts.

Hope this helps.

Thanks guys!!!
 

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AEMTech said:
I am the engineer responsible for designing this kit. As for that dip early in the curve, there is a simple explanation. The Titan dyno'ed had, of course, an automatic transmission. ATs can cause some problems at the begining of a dyno run. Before the run, the throttle is closed, as soon as the run starts, the throttle is punched and sometimes the torque converter slips or locks at the begining of the run. This causes inconsistencies in the begining of the dyno chart. That is what happened when the AEM intake was dyno'ed. I have driven the Titan with the intake installed, and believe me, you have not lost any low end power with it installed. Ask morpheus if you don't believe me. I would have prefered to dyno a manual Titan, but those don't exist. An MT offers more consistant dyno charts.

Hope this helps.

Thanks guys!!!

I agree with AEMTech, there is no loss in the lower RPMs according to the old "butt dyno". When I got on the the freeway for the first time after the intake was installed, I was able to really feel the difference and I love growl it make when you get on the accelerator.
 

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AEMTech said:
I am the engineer responsible for designing this kit. As for that dip early in the curve, there is a simple explanation. The Titan dyno'ed had, of course, an automatic transmission. ATs can cause some problems at the begining of a dyno run. Before the run, the throttle is closed, as soon as the run starts, the throttle is punched and sometimes the torque converter slips or locks at the begining of the run. This causes inconsistencies in the begining of the dyno chart. That is what happened when the AEM intake was dyno'ed. I have driven the Titan with the intake installed, and believe me, you have not lost any low end power with it installed. Ask morpheus if you don't believe me. I would have prefered to dyno a manual Titan, but those don't exist. An MT offers more consistant dyno charts.

Hope this helps.

Thanks guys!!!
Why no data below 3000 rpm?

Keith
 

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AEMTech said:
I am the engineer responsible for designing this kit. As for that dip early in the curve, there is a simple explanation. The Titan dyno'ed had, of course, an automatic transmission. ATs can cause some problems at the begining of a dyno run. Before the run, the throttle is closed, as soon as the run starts, the throttle is punched and sometimes the torque converter slips or locks at the begining of the run. This causes inconsistencies in the begining of the dyno chart. That is what happened when the AEM intake was dyno'ed. I have driven the Titan with the intake installed, and believe me, you have not lost any low end power with it installed. Ask morpheus if you don't believe me. I would have prefered to dyno a manual Titan, but those don't exist. An MT offers more consistant dyno charts.

Hope this helps.

Thanks guys!!!


Thanks for taking the time to respond Damon -- it's great to be able to get some info directly from the engineers. Would love to see more of that.
 
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