gatti-man

Huh so a mustang dyno allows for better tuning?

SnapperDragon

Did you buy my 82 Camaro with the 2.8L engine? It's lost a few HP from the stock 102...

Velocity2008

2008 C6 LS3 M6

387.5 rwhp / 380 torque base run on a dynojet. Bone stock

405/395 with ported TB and upper intake & AiRaid intake with Jeremy Formato HP tune.

415/404 with 07 ZO6 full exhaust system and tune by Jeremy same dyno.

Btw with the ZO6 / NPP valve closed rwhp was 402 - opened 411 rwhp.

BOB EAGAN

Your numbers are a prime example of what we've be discussing here. Base 380-390(m6), ported intake 10, ported t/b 1-2, cai 10, tune 5-10, z06 exaust 10-15. Add them up and 415 in right in the ballpark. The one dude claims 419 stock, you didn't get there with all those mods.The way I estimate numbers, if you are intrested, is base 380, cai 10, t/b 0, ported intake 10, z06 exaust 10, tune 5. Add em up, 415. It's not exact, but it comes within 5-10 hp every time. You picked up close to 30 hp, should give you a nice boost. I assumed you used the z06 headers, what did they do for the exaust note?

BAIN

I figured a M6 would be in the 390's since my 08 A6 put down 380hp stock on a dynojet.

gatti-man

different dyno, different day, different temp. Dynos are not exact.

Velocity2008

Hi Bob

Have Zo6 headers - Cats - H-pipe and mufflers off 07 ZO6. Purchased the NPP in a box from Ed. Open position has a nice deep h-pipe growl to it when you get on it. Closed wisper quite. With the 3" dia pipe I have less popping when de-accelerating However, I had Corsa Sports prior and they were louder.

So, I'm having the ZO6 muffler mod done tomorrow. i.e. seals up the perforated center pipe with in the muffler where the valve is and gives ~40 % deeper exhaust note when the valve is wide open.

Btw - when Jeremy did my ported TB and Upper he cut the shroud just under the AiRaid filter so it's completly open beneath the filter area. So, I have cold air coming into the motor. He ran 8-9 pulls each time and then road tuning after the dyno time to tweak it more. Air temp on both tunes was ~ 92-93* It's a blast to drive now, but I'm looking forward to when the temps are in the 60*

BOB EAGAN

gatti-man has it right. Dynojets do vary 5-10 from place to place, temp, alt. gas. Our drive trains lose approx 55 hp manual, 65 auto, so the math is quite simple.

BOB EAGAN

Nice dyno , 350 tq. at 3000 increasing at 3500-4500. Must pull really good ?
Glad it worked out well for you. I have Kook LTH, X-pipe and Corsa Sports so you know what they sound like. Let us know how you like the sound with the z06 muffler mod.

glass slipper

I must have really pissed you off some time in the past or you've fallen off you're medication again. You sound bipolar/schizo with your latest diatribe here so I'm guessing it's the meds.

You contradict your post from above where you said the Mustang dyno doesn't control RPM...now you're saying you knew about the eddy current absorber that controls RPM. So which time were you lying???

OK, enough funny stuff. I don't think you've been reading my posts with comprehension because I've never knocked the Mustang dyno and have noted it's superior for tuning a car...look at my post you just quoted and you'll see it clearly. What I've had an issue with is when people post about the "loading" feature of a Mustang dyno versus an inertia type Dynojet or how it is more accurate because it accounts for aero/weight (both of which are blatant lies) in an attempt to discredit the numbers from a Dynojet. The Dynojet inertia type loads the engine also, the Mustang combines a power absorber with the inertia part but they both provide a load to the engine. The aero/weight "feature" is a gimmick and means nothing in the overall scheme of things...HP is HP and a chassis dyno is only interested in measuring the HP at the rear wheels, no fudge factors are needed. I think you're taking this personally because your car was done on a Mustang dyno. The reality is it doesn't matter as long as you understand a chassis dyno is just a tool to gauge improvements via mods or for tuning...the numbers and how the numbers were achieved mean nothing, you can use any dyno you want as far as I'm concerned. Hell, use a prony brake dyno for all I care. But the "my dyno is better than your dyno" statement is as ridiculous as the "my car is faster than your car" statement...different dynos/cars have advantages/disadvantages, no one dyno or car is the best in the universe. I only knock people that say things like that and in no way did I mean to discredit a particular dyno when pointing out advantages/disadvantages.

Your last paragraph sounds like you're a 10 year old kid saying "my daddy can beat up your daddy" with your comment about TJWong. Just because I know a few things about cars you don't is no excuse for you to act like this...grow up. TJ Wong was well known in the C4 ZR-1 section before there was even a C6 section and has done a lot for the ZR-1 community and is very deserving of all the respect he has. Why in the world you felt the need to associate a quality name in your rant I have no idea, you owe him an apology. Actually, he does come on here and play expert because he is one and he's a very valuable asset to the Corvette Forum.

Look, if I actually thought I knew it all, I'd be on every single thread absolutely dominating every one of them. In reality, I'm not even on one in 1000 threads. I do have a few specific areas of knowledge that I share occasionally and most people appreciate it as evidenced by posts/PMs thanking me. I've gained a lot of knowledge on the Corvette Forum over the years and am only trying to give a little back. If you can't appreciate that or don't like reading my posts, the solution is too easy...put me on your ignore list. This is a free country and I'll continue posting here IAW forum rules.

gunnerrun

Take it to the track and then run your mouth.

///DarkSide\\\