Z1 Motorsports: AAM TT Kit Installed & Evaluated

Super Werty · 02-15-2015, 08:05 PM

Quote:

Originally Posted by blackonorange

I'm wondering how they were able to extract thatch more power out of 9.5 psi when the other kits on the market are around 12-13 psi at that power level. Does Aam flow that much more air on the intake side? I guess there's a couple different factors when asking about psi including exhaust and tuning. Did I answer my own question?

Don't forget too we're talking about different dynos on different sides of the country with different conditions etc etc etc. As I have said before... Wait for a trap speed and then we'll see what this kit is made of...

thangcu35 · 02-16-2015, 08:22 AM

Quote:

Originally Posted by Super Werty

Don't forget too we're talking about different dynos on different sides of the country with different conditions etc etc etc. As I have said before... Wait for a trap speed and then we'll see what this kit is made of...

While I agree that trap speed does speak of power to weight, dont you think track conditions such as air temp, elevation and baro pressure play a factor in the trap speed for that particular day and setup? Hell even powershifting will add 2-3 more mph, so unless its the same driver its not even comparable. That's why even in stock form, there are varying trap speed and 1/4 times across the country. I tend to trust "Dynojet" more than trap speed or any other dyno simply because the operator has no control over the input of variables. I have tested 3 dynojets on previous cars that I tuned and they all read within 2-3% with temps and baro pressures varying from summer to winter.

Super Werty · 02-16-2015, 11:30 AM

Quote:

Originally Posted by thangcu35

While I agree that trap speed does speak of power to weight, dont you think track conditions such as air temp, elevation and baro pressure play a factor in the trap speed for that particular day and setup? Hell even powershifting will add 2-3 more mph, so unless its the same driver its not even comparable. That's why even in stock form, there are varying trap speed and 1/4 times across the country. I tend to trust "Dynojet" more than trap speed or any other dyno simply because the operator has no control over the input of variables. I have tested 3 dynojets on previous cars that I tuned and they all read within 2-3% with temps and baro pressures varying from summer to winter.

Well in a perfect world I would like to see turbo kits side by side in a 60 roll.

But a trap speed to me is more important than dyno numbers. I want my Z to trap 130+

phunk · 02-15-2015, 05:58 PM

There are 3 typical ways to make more power per PSI.

-Colder Air
-Improving natural airflow through the entire system as a whole (often referred to as Volumetric Efficiency)
-Tuning

Tuning is sort of obvious. More efficient & optimized tuning will produce greater power output given the same quantity of air and fuel. Being on pump gas, I would take a guess that it is not tuned very aggressive.

Airflow is most likely where most of this is coming from. A turbo that flows better on the exhaust side will cause less restriction of airflow through the engine system as a whole, in the same fashion a better flowing exhaust system will; therefore lowering boost pressure at the same airflow. Airflow is airflow, boost is the measurement of how much the airflow through the engine is being restricted between the turbocharger compressors and the engine cylinders. If you increase airflow through the engine, such as a higher flowing exhaust (or higher flowing turbo hot-side), boost pressure will go lower even though the airflow (thus power) remain just as high. Although if you want to be technical, a wastegate is regulating boost pressure not airflow, so you would have to turn down the boost to keep the power the same after improving airflow through the engine.

Temperature is a small factor here, since lower boost means less heat generated through compression, translating to lower intake temps, denser air, greater power. So this is basically a compounding effect of a turbocharger that flows better on its hot side... I would guess making a rather minor contribution since we are only looking at a few psi difference.

TerribleONE · 02-15-2015, 08:09 PM

ROBERT1183 · 02-15-2015, 09:06 PM

That dyno might read high. All the other cars Aam have built including mine are right around 550 depending on exhaust. I made 501whp with a 2.5 inch ark system. With a new custom 3 inch system from Aam I made about 540-550whp. And that was at the same psi

thangcu35 · 02-16-2015, 08:11 AM

Quote:

Originally Posted by ROBERT1183

That dyno might read high. All the other cars Aam have built including mine are right around 550 depending on exhaust. I made 501whp with a 2.5 inch ark system. With a new custom 3 inch system from Aam I made about 540-550whp. And that was at the same psi

Are you using their Borg Warner EFR turbos?

ROBERT1183 · 02-16-2015, 04:53 PM

Quote:

Originally Posted by thangcu35

Are you using their Borg Warner EFR turbos?

I have the exact same kit on mine just installed by Aam competition themselves. And with a new custom 3 inch system I'm making 540whp

John@Z1 · 02-17-2015, 11:45 AM

Quote:

Originally Posted by ROBERT1183

That dyno might read high. All the other cars Aam have built including mine are right around 550 depending on exhaust. I made 501whp with a 2.5 inch ark system. With a new custom 3 inch system from Aam I made about 540-550whp. And that was at the same psi

Robert,

Our dyno doesn't read high. It's actually lower than most local dynos. The car consistently makes 580+rwhp in 4th gear. The car is also dialed back a small tad in 5th gear to help with longevity.

TerribleONE · 02-18-2015, 10:59 AM

Quote:

Originally Posted by John@Z1

Robert,

Our dyno doesn't read high. It's actually lower than most local dynos. The car consistently makes 580+rwhp in 4th gear. The car is also dialed back a small tad in 5th gear to help with longevity.

Im sorry but I have to ask... how is the car "dialed back in 5th gear" Also, I haven't seen many NA Zs with as much WHP as the cars that leave your shop.. Anyways, hope to see a AAM car at the Forged Performance airstrip event.

FPenvy · 02-18-2015, 11:01 AM

Quote:

Originally Posted by TerribleONE

Im sorry but I have to ask... how is the car "dialed back in 5th gear" Also, I haven't seen many NA Zs with as much WHP as the cars that leave your shop.. Anyways, hope to see a AAM car at the Forged Performance airstrip event.

hmmmmm FI TT vs AAM TT.

that would be a fun race to watch. wonder if there will be one of each entering.

TerribleONE · 02-18-2015, 11:05 AM

Quote:

Originally Posted by FPenvy

hmmmmm FI TT vs AAM TT.

that would be a fun race to watch. wonder if there will be one of each entering.

I agree! I am all for some friendly competition.

Happy boosting my friends

Gregor12 · 02-18-2015, 11:38 AM

Quote:

Originally Posted by TerribleONE

Im sorry but I have to ask... how is the car "dialed back in 5th gear" Also, I haven't seen many NA Zs with as much WHP as the cars that leave your shop.. Anyways, hope to see a AAM car at the Forged Performance airstrip event.

you can tune by gear as well i believe. a lot of cars do this to avoid breaking parts or traction in low gears, or blowing up in the upper gears. so say he pulls out two lbs of boost and some timing in 5th gear so its not pushing its limits. For example, i had a sti before my z and in first gear the target boost was only set at 16 where 3rd was 18.5 and then 5th was 17.5. **** was still slow though lol

TerribleONE · 02-18-2015, 12:14 PM

Quote:

Originally Posted by Gregor12

you can tune by gear as well i believe. a lot of cars do this to avoid breaking parts or traction in low gears, or blowing up in the upper gears. so say he pulls out two lbs of boost and some timing in 5th gear so its not pushing its limits. For example, i had a sti before my z and in first gear the target boost was only set at 16 where 3rd was 18.5 and then 5th was 17.5. **** was still slow though lol

I am well aware of boost by gear setups however I do not think that is what's going on here.

What kind of boost controller is this car running?

Aviator44 · 02-18-2015, 07:30 PM

Quote:

Originally Posted by TerribleONE

Anyways, hope to see a AAM car at the Forged Performance airstrip event.

I should be present.

02-15-2015, 05:58 PM	#4 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	There are 3 typical ways to make more power per PSI. -Colder Air -Improving natural airflow through the entire system as a whole (often referred to as Volumetric Efficiency) -Tuning Tuning is sort of obvious. More efficient & optimized tuning will produce greater power output given the same quantity of air and fuel. Being on pump gas, I would take a guess that it is not tuned very aggressive. Airflow is most likely where most of this is coming from. A turbo that flows better on the exhaust side will cause less restriction of airflow through the engine system as a whole, in the same fashion a better flowing exhaust system will; therefore lowering boost pressure at the same airflow. Airflow is airflow, boost is the measurement of how much the airflow through the engine is being restricted between the turbocharger compressors and the engine cylinders. If you increase airflow through the engine, such as a higher flowing exhaust (or higher flowing turbo hot-side), boost pressure will go lower even though the airflow (thus power) remain just as high. Although if you want to be technical, a wastegate is regulating boost pressure not airflow, so you would have to turn down the boost to keep the power the same after improving airflow through the engine. Temperature is a small factor here, since lower boost means less heat generated through compression, translating to lower intake temps, denser air, greater power. So this is basically a compounding effect of a turbocharger that flows better on its hot side... I would guess making a rather minor contribution since we are only looking at a few psi difference. 1cleanZ, blackonorange, KN21283 and 6 others like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph Last edited by phunk; 02-15-2015 at 06:05 PM.

02-15-2015, 08:09 PM	#5 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5851	__________________ 638WHP 541WTQ @ 13.5PSI Build thread

02-15-2015, 09:06 PM	#6 (permalink)
ROBERT1183 Enthusiast Member Join Date: Feb 2013 Location: ROCKAWAY NJ Posts: 458 Drives: 2011 NISSAN 370Z Rep Power: 13	That dyno might read high. All the other cars Aam have built including mine are right around 550 depending on exhaust. I made 501whp with a 2.5 inch ark system. With a new custom 3 inch system from Aam I made about 540-550whp. And that was at the same psi __________________ Aam competition twin turbo 540whp @ 9psi

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