As promised in the Z06 section I would provide dyno results for the Mamo v2 Throttle Body on my 2017 Z06. Mods are Borla catless Xpipe, GM Performance Intake and tuned by myself. As there are always doubters, which there should be, I will disclose as much information as possible. First, I purchased my Throttle Body for full price. No discount, no favors. Second, I was not paid to do this. It is pretty boring during lock down as we all know and I do this stuff as a hobby so I enjoy it and no one has provided any data like this that I have ever found. Third, I data logged all of the dyno pulls and just like my thread over in the Z06 section, the airmass changes did result in power changes. My method of testing here was to be as transparent as possible. I drove the car to the shop, pulled in on the rollers and let it cool off for about 45 minutes. Made two pulls back to back and was going to make a third but since both pulls were nearly identical I chose the best one to be the comparison. I then swapped on the Tony Mamo version 2 throttle body while the car was strapped to the dyno and then let the car cool off for 45 minutes. I got the car back up to temp and made a pull. I then made a subsequent pull with the nearly identical power as the first pull with the Mamo v2. There was no reason to make a third pull just like with the OEM TB.
I also wanted to give a positive word for the guys over at AMP (American Muscle Performance). They were a great bunch to work with on the Dyno. They were interested in what I was testing and were very accommodating to my requirements on how things were done on the dyno. They do all American cars but specialize in Dodge setups. There were some mean sounding Hellcats when I was there. It was a great experience. My next mod I will be right back on their dyno and if I don't want to install the parts myself I would easily let them do the work. Solid group of guys over there.
My car was tuned by me prior to the Mamo v2. The dyno charts below has the first pull made with the OEM TB then the first pull made with the Mamo v2 TB. NO TUNING CHANGES. This was done on a Mustang Dyno and the tech added "Estimated Dyno Jet HP" just so there was that option as well. I'm not concerned about the actual number other than the difference between the two. And I was quite surprised. Even the guys operating the dyno were impressed. One thing to note is since the Airmass went up with the Mamo v2, the ECU was referencing a higher part of the spark table which caused timing to be about 1/2 a degree lower with the Mamo TB. You can see the difference in the last two screenshots of the Datalog. If I would have re-tuned to bring the timing back up I probably would have picked up another 5rwhp.
Dotted Line: OEM TB
Solid Line: Mamo v2 TB
Notes: The dyno operator used my gear ratio of 3.42 and we ran everything in 4th gear which is 1:1. They did not use an induction pickup to monitor the tach signal. The Dyno charts RPMs seem to be slightly off which I assume is because they didn't have the tire height exactly right. This likely threw the RPM calculations off on the chart, but all pulls were from 3000-6600 RPM as you can see in my data logs.
As mentioned I also data logged the runs so that the information that I posted in the thread below could be confirmed. The data logs in this older thread actually show better peak boost numbers but that is to be expected when comparing to dyno pulls. But as you can see below the datalog comparison focusing on Airflow/Airmass/MAP/Pressure.
https://www.corvetteforum.com/forums...xperience.html
Now here you can compare datalogs. Here are a few things to notice.
#1) As you can see above, the airmass with the Mamo v2 is higher, meaning more air is moving through the engine. This causes the spark lookup table to move to the next higher cell which is half a degree lower to account for the extra boost. So the Mamo v2 pulls actually had 1/2 a degree less timing vs the OEM TB pulls
#2) No Knock Retard on either pull
#3) Long Term Fuel Trims were identical. When referencing on the dyno computer there was a .1 difference. The dyno chart even shows that(12.0 to 12.1 average). As expected the MAF added more fuel because it saw more airflow, but the AFR being .1 leaner means the car was using the extra fuel to make power. The dyno chart proves this.
OEM TB Dyno Pull Log
Mamo V2 Dyno Pull Log
In summary, I leave this for each to develop their own conclusion. I am very happy and the money is well spent. Car drives great and Tony is a great guy to do business with.
Enjoy...