Thoughts on Dynopack results?
 

I have been reading this forum for a while and I have had my z for just over a year now. Never really thought of modding it to begin with but after reading this forum it is impossible not to.

My coworker called Friday and said he was going to dyno his new camaro ss so I figured I would drive over with him and see what my Z could put down. When we showed up to this place that tunes GM vehicles exclusively, I see the dyno they have is a Dynopack. I had never really heard of one before but the dude said it reads just like the mainstream ones (i was assuming this meant dynojet).

So the camaro hooks up and pulls 405 hp after a few runs and it only has a CAI. I thought that was pretty good so I was hoping to see at least 280 out of my Z. I have the HPS tubes as well as berk HFC's installed. He does a few pulls and the best my Z gets is 270 hp. So I come home to start reading what the deal is and the general opinion on the internet is that these dynopacks read higher than dynojets because the rear wheels are off the car when doing a pull. When I search this forum I only find a few post regarding dynopack results, but they all show a little lower than the stock numbers from a dynojet that I see on here. It seems most Z's on here pull 275hp stock on a dynojet and what I see from searching here, stock Z's get around 265 or 268 on a dynopack. Either way, I was still pissed I didnt get some better numbers with what I have modded. Only thing that would have jumped higher than most dynopack results I am seeing is my torque numbers. I am including a dynopack result I found on here from a guy comparing his stock system to K&N filters, as well as my results from friday. Anybody have any thoughts on why I had such low numbers? I know all dynos are different and it was 108 in austin that day. I am wondering if the dude just didn't know what he was doing in configuring the software for a Z. Both of these graphs are SAE corrected and I did it in 5th gear. my oil temp was 205

Thanks

I did a Dynapack once ;)


http://farm5.static.flickr.com/4012/...43b_z.jpg?zz=1

I think you should have done it in 4th gear? :icon14:

you said yourself, "you understand all dyno's read differently"....that's the reason right there, nothing else to think about

a dyno is a tool, relative unto itself and nothing else

just like one torque wrench set to 80 ft/lbs may yeild a slightly different result than another brand torque wrench set to 80 ft/lbs, dyno's have variances for a myriad of reasons

instead of worrying why your car is 'missing' some arbitrary amount of power, take it as a starting point - you now have your baseline on that particular dyno location. As you mod, use the place again to see how your power changes

yeah dont worry about what those base line numbers are showing, use them as a tool to see how much you gain after some additional mods like Z1 posted. Another reason you shouldnt worry about those numbers is because that camaro with cai and those numbers would be running almost 500bhp. Pretty sure you are not going to jump from 422 to near 500bhp with a cai. Please correct me if I am wrong.

Here is my Dynapack run i did this weekend at the same place as KillerBee370.... seems to me to be higher then i thought it would be for just K&Ns, but like others have said; I'm just using it as a baseline to compare with other runs on the same machine.

http://www.the370z.com/attachment.ph...1&d=1313449368

I hate tossing these terms around, but it's well known that Church's dyno is very, very optimistic. Doesn't take away from them as tuners, as I've always heard very good things (have many customers who have been there). How it's setup, or why it's setup that way, who knows. Doesn't really matter in the end either. Again, use a dyno run such as this for what it is - a baseline, to measure future gains. Do not use it for what it's not - a definitive #.

Agreed. I got a nice boner with the Church's dyno but when dyno'd at Technosquare I got 315 whp. Probably a more accurate assessment.

:iagree:

We're pretty close
http://www.the370z.com/members/tripl...1-dscf0454.jpg

Damn almost twins Trips!! :eek:

:tup:

Trips why is your speed listed at 108 and mine is listed at 122?


Edit: it's possible that I'm hitting a higher speed since I'm tunes to 8k rpm?

I don't know, but maybe it didn't need to spin as hard on mph to reach its peak?? :shrug:

My rev max powah was at 7200

What modes do yall have (KillerBee, Triples)??

09 Touring/Sport 6mt