Well after a long 8 hour day with David and harman here is my official results... BTW I want to thank David for hanging out with me most of the day and keep me cool while I was confused about some of my results

We had 2 cars, one of them was mine with 5k miles, revo, milltek dp, milltek res and hyperflow. The other car was my cousins which was bone stock and had 13k miles on it. Both of them are 04's and both are Tips. We let the cars cool down for an hour between the dyno runs. Anyways here are the results


This one is my cousins car stock vs revo. Very nice results. It gained almost 20lbs of torque and 12 hp under the curve. what was surprising to me was not much of a peak hp gain just about 2 hp. I think the reason behind that is because the tips shift right around 6800rpm or lower and that's right around where the peak hp is and climbing. If the Tips rev'd up higher I think we could have seen more improved peak hp.
<img src="http://www.crazyz06.com/images/joe_stock_vs_revo.jpg">


This one is my cousins stock run vs my run with revo, milltek dp, milltek res and hyperflow.
<img src="http://www.crazyz06.com/images/joe_stock_vs_ara.jpg">


This one is with all 3 runs, my cousins stock run vs my cousins revo run vs my run with all the mods. The blue is the stock run, the green is just revo, and the red is my run with all the mods. What really shocked me is that most of my gains was from the revo, the hyperflow and milltek setup did not give me a huge advantage over just the revo. I only gained 7 hp above 5500rpm with the addition of the milltek dp, milltek res and hyperflow. The only defense I have for that is that I don't have a baseline for my car when it was stock. it could have made less power to begin with but that's just a speculation. I was really expecting to see more gains over my cousins car with all the mods I had on it. I also wonder if having more miles on the car would make it dyno more?
<img src="http://www.crazyz06.com/images/ara_vs_joe_stock_vs_joe_revo.jpg">


Anything thoughts or comments?

 

revo alone. I've got gtimer runs on the same patch of road, same conditions etc...as well as dyno pulls and BUTT dyno that prove that my fullback actually makes considerably more power than with revo alone. Just remember that you can't expect mods to add up on each other (although that would be awesome).

Thanks for your post.

 

<ul><li><a href="http://www.crazyz06.com/movies/mvi_2084.avi">http://www.crazyz06.com/movies/mvi_2084.avi</a</li></ul>

 

$3,000+ for the gains you get on this car is most likely not worth it.

 

Either way it's worth the way it sounds now

 

I'm sure it does sound nice. How is the sound compared to a stock Z06?

 

My Z06 sounds louder and better because I have the Borla Stingers and long tube headers but again I wouldn't want the S4 any louder, it is a 4 door sedan !!! It's just perfect the way it is right now.

 

So with tip you will not see much gain unless you can get the tip to shift at higher point. I believe my setup peaked at 6900 for hp.

 

Do you have a dyno graph you can post on your results?

Thanks,

 

Looks like the exhaust didn't really start paying dividends until ~6000rpm