For the install look here >> J37 Intake Manifold Install
So for a while, I have had my eyes on the J37 ZDX/MDX Throttle body and Intake Manifold as everyone over at Acurazine and Facebook seem to be drooling over it. I had the opportunity to take a plunge and I did. Over the Holiday break, I was able to get it installed and do some testing tonight.
Experience
Off idle response is about on-par with my '19 Odyssey. The truck does jump off the line fast and it is noticeable. The response from 3500rpm to 5000rpm is evident as typically that is about the range the engine is in, when you are passing another vehicle. The acceleration is smooth and the Vtec engagement is, oddly enough, not as apparent when compared to stock. Interestingly enough the transmission shifts much smoother (nothing has been changed since my previous test) and really feels like you have a different transmission. I would even go on to say that, more than the engine characteristics, I felt like I had a different/new transmission. The downshifts are smooth and the high engine-rpm shifts are not as abrupt as before.
The difference in acceleration is evident and the way it gathers speed is interestingly satisfying. Under partial throttle, the response is night & day compared to stock. Driving my '19 Odyssey and my G1, it feels like the G1 produces about 10hp more that stock (that's from my very accurate butt dyno). *The Odyssey still trumps in 0-60mph with a 6.6s!!! -C&D)
Overall, I am pleased with it and for almost $370 into this modification, one would have to take a step back and see if KTuner V1.2 for $450 is an option (however, you need to learn to tune it to save some $$$).
Observation.
I did some basic driving and acceleration tests. Same routes and roadway as my earlier test after the KW suspension modification. I did a total of 5 acceleration tests and reporting the best. Airbox is stock with the same K&N replacement filter element as prior test. Replaced the intake air hose to custom 3.5" to 3.25" to accommodate this modification.
The IAT was much lower and the highest temp that the ATF reached was 141.8F, coolant was comparable between the tests. One thing to note is that the difference between ambient temp and the IAT was lower in the J37 setup, than the stock setup.
Traveling around 60mph, hitting the D3 button the shifter stalk to drop the transmission gear and accelerating is insane......... just saying.
. Advice not to do that often, but tried it today and got scared looking at the speedometer.
Road temperature was 36.8F and the Tire temperature was 63.6F. And yes, I have Grabber AT2s; sweet All Terrain Tire for both the tests.
Below is the data and the vehicle was quicker by 1.195s from 0-60mph. With some performance all season and premium fuel, I truly believe you get it below 8.0s for the 0-60mph.
Acceleration
Stock J35 setup
J37 Throttle body & Intake Manifold
Fuel Economy
Stock J35 setup
J37 Throttle body & Intake Manifold
Pictures for the jolly of it. (LEFT: Stock | RIGHT: J37 IM & TB)
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So for a while, I have had my eyes on the J37 ZDX/MDX Throttle body and Intake Manifold as everyone over at Acurazine and Facebook seem to be drooling over it. I had the opportunity to take a plunge and I did. Over the Holiday break, I was able to get it installed and do some testing tonight.
Experience
Off idle response is about on-par with my '19 Odyssey. The truck does jump off the line fast and it is noticeable. The response from 3500rpm to 5000rpm is evident as typically that is about the range the engine is in, when you are passing another vehicle. The acceleration is smooth and the Vtec engagement is, oddly enough, not as apparent when compared to stock. Interestingly enough the transmission shifts much smoother (nothing has been changed since my previous test) and really feels like you have a different transmission. I would even go on to say that, more than the engine characteristics, I felt like I had a different/new transmission. The downshifts are smooth and the high engine-rpm shifts are not as abrupt as before.
The difference in acceleration is evident and the way it gathers speed is interestingly satisfying. Under partial throttle, the response is night & day compared to stock. Driving my '19 Odyssey and my G1, it feels like the G1 produces about 10hp more that stock (that's from my very accurate butt dyno). *The Odyssey still trumps in 0-60mph with a 6.6s!!! -C&D)
Overall, I am pleased with it and for almost $370 into this modification, one would have to take a step back and see if KTuner V1.2 for $450 is an option (however, you need to learn to tune it to save some $$$).
Observation.
I did some basic driving and acceleration tests. Same routes and roadway as my earlier test after the KW suspension modification. I did a total of 5 acceleration tests and reporting the best. Airbox is stock with the same K&N replacement filter element as prior test. Replaced the intake air hose to custom 3.5" to 3.25" to accommodate this modification.
The IAT was much lower and the highest temp that the ATF reached was 141.8F, coolant was comparable between the tests. One thing to note is that the difference between ambient temp and the IAT was lower in the J37 setup, than the stock setup.
Traveling around 60mph, hitting the D3 button the shifter stalk to drop the transmission gear and accelerating is insane......... just saying.
. Advice not to do that often, but tried it today and got scared looking at the speedometer.Road temperature was 36.8F and the Tire temperature was 63.6F. And yes, I have Grabber AT2s; sweet All Terrain Tire for both the tests.
Below is the data and the vehicle was quicker by 1.195s from 0-60mph. With some performance all season and premium fuel, I truly believe you get it below 8.0s for the 0-60mph.
Acceleration
Stock J35 setup
0-60mph: 9.69s (8.0s by C&D for a 2006 model on stock tires)
Acc G: 0.56G
IAT: 71.6F
Ambient Temp: 59F
Humidity: 59%
Wind: 5mph SSW
Vehicle Travel: SW
J37 Throttle body & Intake Manifold
0-60mph: 8.495s
Acc G: NA
IAT: 44.6F
Ambient Temp: 41F
Humidity: 87%
Wind: 3mph NNW
Vehicle Travel: SW
Fuel Economy
Stock J35 setup
Test Loop: 55.1mi (City: 21.1mi | Hwy: 34.0mi)
City/Urban: 14.8mpg (14.2mpg max on OEM)
Highway @ 65mph: 25.8mpg (19.2mpg max on OEM)
Vehicle Travel: NNE
Wind: 5mph SSW
Humidity: 59%
Pressure: 30.15in
Ambient: 59F
IAT: 69.8F
Coolant: 174.2F
ATF: 167.0F
J37 Throttle body & Intake Manifold
Test Loop: 47.4mi (City: 26.3mi | Hwy: 21.1mi)
City/Urban: 14.7mpg
Highway @ 65mph: 23.5mpg
Vehicle Travel: SE
Wind: 3mph NNW
Humidity: 87%
Pressure: 29.92in
Ambient: 41F
IAT: 46.4F
Coolant: 174.2F
ATF: 116.6F
Pictures for the jolly of it. (LEFT: Stock | RIGHT: J37 IM & TB)
