Thanks! Your right about the torque down low I didn’t even notice that I was mainly looking at the peak tq and gains up top, I was originally worried it would loose total tq because of the shorter runners and being ported but Tony did an awesome job on it!I shift at 7400-7500 when I race so I was hoping this intake would pull better to redline and it does, I don’t have car back yet they’re still tuning on it so will see if tq loss down low will be noticeable during normal driving but I don’t think it will be a noticeable difference with my gears, the rest of build consists of, stock bottom end, 40 thousand miles, TEA ported TFS 215 heads w hollow stem valves and pm guides, 59cc .045 head gaskets, LG G5x3 cam, LG Pro headers, underdrive pulley

I’ve been following your build also on the z06 forum, your motor is a lot fresher than mine with the lower miles, looking forward to the results with the afr heads, most afr builds I see don’t make great numbers but it’s because they’re running them at 64-65cc for whatever reason, you having them cut to 59c and the lightweight valves will make a big difference along with Mamo doing his work on them can’t wait to see the results!

Smaller cams still make good power and torque, just fall off sooner at high rpm, I don’t have any SAE numbers I’m guessing they would be lower but previous dyno was STD also so mainly not really looking for a certain number just trying to compare the power curve to my fast 102 to see if intake would make gains up top for the track which it looks like it will

You’ll need the ls2 fuel rails for either the fast or msd, technically you shouldn’t need shorter mounts but every car is different, when I still had stock heads running the fast 102 it was a tight fit but still worked fine, with the milled tfs heads and thinner gasket it gives slightly more clearance, you will also need to grind the water pump and throttle body but nothing major

I drove it to work a couple times before having it tuned and it really didn’t feel any different, I’m picking it up tonight I’m going to go ahead and replace the valve springs then take it back to finish it out, hopefully it doesn’t feel slower than when I took it in hah! I think it’s a good intake if your going to turn the rpms since it carries it out, my rev limiter is at 7500 but we’re going to bump it up a little so I can shift at 7500, if you carry the lines out it looks like it will make roughly 25+ hp 10-15+ tq at 7500, will have to get to the track to see if it helps or not

Thanks Rob! I just need you to come to my track and make a pass in it to see what it will really do! It runs 6.90’s now in the 1/8 with roughly 2000 DA and my not so good 60ft times but I’m getting better but if I can get it down to 6.70’s which I think it will then I’ll be happy

Yes stock botttem end, stock rod bolts, stock lifters, stock rocker arms with trunion upgrade ect, I think you would be fine shifting at 7000, I drive mine a lot but it’s not a daily driver if it was I wouldn’t run it as hard as I do, when I was cam only I think we set limiter at 7100, your dyno sheet will give you a good indication of were to set it

Yes there are lots of variances between the 2 dynos since they are 2 yrs apart and things have been changed, the Mamo ls7 MSD is proven but there wasn’t much info on the cathedral port version. One of the reasons I wanted to try it was I was just curious how it would perform, another is I wanted something that would pull to 7500 and not drop off like the fast and this seems to do that, also when this motor goes I’m going to build a similar ls3 with tfs 235 heads and thought this intake would be good for that build, I think the biggest thing I’m happy about is the motor is still making good power with all the abuse I’ve put it through, I was expecting numbers in the 470+ range! I could probably do a custom cam that would maximize the intake but not going to pull the motor apart again there’s no telling how much life is left in it

It’s an 04, original motor, crank, rods, rod bolts, pistons, lifters, oil pump, rocker arms all original to car, had 13,000 miles when I purchased it several years ago, 16,000 when I cammed it and started racing it, has about 41,000 on it now, guessing anywhere from 300 - 400 drag strip passes but those are all 1/8 mile and not 1/4, I think the motor is strong and has a lot of life left in it the only thing I really worry about is the stock lifter(s) going out