LLT MACE Cams - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

MagnumForceGB · 04-08-2018, 12:53 PM

The weather is going to be complete crap so I can't go to the track anytime soon and I want to get my supercharger build back going. I'm probably just going to put the car on the dyno, see what numbers and how the torque curve looks. By the time the weather cooperates the DA will be high so there will be little point in taking it down the track since most don't understand how hard DA affects NA builds.

A rough estimate right now though is that if GM managed to get 280 ft-lb of torque at 100% VE (most likely 90% due to stock cats, but I went with a number that will give me lower), I am at 310 ft-lb @ 4900 RPM, 390 HP @ 7400 RPM. At peak torque I'm achieving a little over 110% Volumetric Efficiency, at 7400 RPM it is 99%. Volumetric Efficiency is how much air the engine is pulling in vs. the volume of the cylinder, which on my engine is 0.73 grams. Now these numbers are based on if I am getting a 100% combustion, my AFR is spot on and the timing is at MBT.

The problem with the LLT though is that at 7400 RPM the cam phasers reset to zero, so I can't control VVT after that. Right before though the engine is still making power, so I think the engine could make power all the way to 8500 RPM, the bearings and rods holding that stress is a different story though.

MagnumForceGB · 04-21-2018, 03:32 PM

I finally got the car to do 0-60 MPH in 5.0 seconds, which is near what I need to be to run 12's. Right now I need to work on 1 more part of the tune, which is the initial hit. I moved the cam timing around, if I go lower or higher I lose power, so they are in the perfect position for my setup. The cam timing is just weird compared to what I run on my 5.0 and 3.7 engines, but they are port injected engines, this direct injection engine might just like it different.

Still trying to get to the track, weather is not really cooperating. Hopefully soon.

Marklar · 04-23-2018, 09:09 AM

Quote:

Originally Posted by MagnumForceGB

Still trying to get to the track, weather is not really cooperating. Hopefully soon.

Sweet, keep us update. I enjoy following your build.

MagnumForceGB · 04-23-2018, 05:11 PM

Was going to go Friday but I'm broke down. Transmission isn't getting power from the engine.

MagnumForceGB · 04-23-2018, 06:50 PM

Looks like the car wheel hopped and broke the input shaft of the transmission.

fnhowe84 · 10-25-2018, 02:36 PM

Hey Mag, I sent you a PM about Mace parts and to get your input and advice on a few things

Thanks

MagnumForceGB · 10-25-2018, 03:17 PM

Quote:

Originally Posted by fnhowe84

Hey Mag, I sent you a PM about Mace parts and to get your input and advice on a few things

Thanks

I don't have any PM's in my inbox. What did you need to know?

fnhowe84 · 10-25-2018, 03:27 PM

Quote:

Originally Posted by MagnumForceGB

I don't have any PM's in my inbox. What did you need to know?

I just posted a new thread above this one (below now) talking about my plan. Id like to pick your brain on everything!

NYstreetguru · 05-18-2022, 01:57 AM

Hey mag. Going to PM you. I am doing a Mace cam setup as well.

robrocketanski · 05-19-2022, 01:55 PM

I just got a set of the cams. But they are for my Acadia. There won't be any dyno numbers we'll see how it goes

04-08-2018, 12:53 PM	#43
MagnumForceGB Drives: Fastest 2010 Camaro V6 Join Date: Apr 2010 Location: Newcastle, OK Posts: 3,571 View My Garage	The weather is going to be complete crap so I can't go to the track anytime soon and I want to get my supercharger build back going. I'm probably just going to put the car on the dyno, see what numbers and how the torque curve looks. By the time the weather cooperates the DA will be high so there will be little point in taking it down the track since most don't understand how hard DA affects NA builds. A rough estimate right now though is that if GM managed to get 280 ft-lb of torque at 100% VE (most likely 90% due to stock cats, but I went with a number that will give me lower), I am at 310 ft-lb @ 4900 RPM, 390 HP @ 7400 RPM. At peak torque I'm achieving a little over 110% Volumetric Efficiency, at 7400 RPM it is 99%. Volumetric Efficiency is how much air the engine is pulling in vs. the volume of the cylinder, which on my engine is 0.73 grams. Now these numbers are based on if I am getting a 100% combustion, my AFR is spot on and the timing is at MBT. The problem with the LLT though is that at 7400 RPM the cam phasers reset to zero, so I can't control VVT after that. Right before though the engine is still making power, so I think the engine could make power all the way to 8500 RPM, the bearings and rods holding that stress is a different story though. __________________ Camaro V6 = 11.268 @ 120.11

04-21-2018, 03:32 PM	#44
MagnumForceGB Drives: Fastest 2010 Camaro V6 Join Date: Apr 2010 Location: Newcastle, OK Posts: 3,571 View My Garage	I finally got the car to do 0-60 MPH in 5.0 seconds, which is near what I need to be to run 12's. Right now I need to work on 1 more part of the tune, which is the initial hit. I moved the cam timing around, if I go lower or higher I lose power, so they are in the perfect position for my setup. The cam timing is just weird compared to what I run on my 5.0 and 3.7 engines, but they are port injected engines, this direct injection engine might just like it different. Still trying to get to the track, weather is not really cooperating. Hopefully soon. __________________ Camaro V6 = 11.268 @ 120.11

04-23-2018, 05:11 PM	#46
MagnumForceGB Drives: Fastest 2010 Camaro V6 Join Date: Apr 2010 Location: Newcastle, OK Posts: 3,571 View My Garage	Was going to go Friday but I'm broke down. Transmission isn't getting power from the engine. __________________ Camaro V6 = 11.268 @ 120.11

04-23-2018, 06:50 PM	#47
MagnumForceGB Drives: Fastest 2010 Camaro V6 Join Date: Apr 2010 Location: Newcastle, OK Posts: 3,571 View My Garage	Looks like the car wheel hopped and broke the input shaft of the transmission. __________________ Camaro V6 = 11.268 @ 120.11

10-25-2018, 02:36 PM	#48
fnhowe84 Drives: 2018 Hotwheels M6 & 2010 1LE V6 M6 Join Date: Dec 2016 Location: VA Posts: 309 View My Garage	Hey Mag, I sent you a PM about Mace parts and to get your input and advice on a few things Thanks __________________ CamaroLIFE

05-18-2022, 01:57 AM	#51
NYstreetguru Drives: 2012 2LT RS Join Date: Dec 2020 Location: Binghamton, NY Posts: 32	Hey mag. Going to PM you. I am doing a Mace cam setup as well.

05-19-2022, 01:55 PM	#52
robrocketanski Drives: ZL1 Convertible Auto Join Date: Apr 2015 Location: Macomb, Michigan Posts: 330	I just got a set of the cams. But they are for my Acadia. There won't be any dyno numbers we'll see how it goes __________________ LS3 intake and throttle body, Huron Speed Products twin turbo with 6265 oil less turbos, and 3" header back, JRE smooth cam, ID1300, Fore dual 450lph pumps with MSD voltage booster, A6, 305/45/17 MT Street R