2005 6mt Sedan. Stock. I wanted a base line before I put on my Borla exhaust.

3 pulls all resulted in 238hp and 221-225tq. The numbers suggest a 20% loss which seems high to me with a stick. The air fuel above 5krpm was 10 or lower which tells me this thing is running pig rich. I know if it were at 12:1 I would probably gain ~12-15hp. How is everyone else running? Rich or lean? What are your numbers with the 05 or 06's?

Thanks.

 

What kind of dyno? Different dynos read different numbers...

 

Remind me is it the 2005 that get 298 hp? If so then your #'s are showing the 2005 have no more HP then the 2003... <shrug>

 

Dynojet Dyno.

 

1) What gear was it in for the pulls?
2) What kind of dyno system was it?

Your numbers are low for a stock 05-06 so that is why I am asking.

 

I've seen your numbers. That's what I was shooting for given a 15% loss.

2 in 4th gear. We tried 1 pull in 3rd. All were within ~1 hp and tq.
What were your A/F numbers? Like I stated above. I'm running really rich. If I were around 12 I think I would be at the 250 range.

Thanks.

 

I don't think your numbers are low at all, and should be nothing to worry about. People dyno anywhere from the mid 210's to low 250's on a dynojet. Don't worry about comparing your numbers against anyone else's.

However, are these SAE numbers? What was the correction factor? What was the smooting factor? Smoothing *shouldn't* affect your peak numbers, but on one of 14 or so runs I've had on my car, I saw a difference of 5hp at peak just by playing with the smoothing in the software.

Either way, smoothing and correction factor really should not have a big impact on the numbers. My point is to illustrate that dyno numbers are just a reference, or a tool. Don't flip out that your car is "slow" or anything.

My car dyno'd at 242/210 back in the summer. You dyno'd a bit lower on power, but quite a bit more in the torque department. However, I would be concerned about your a/f if it is indeed in the 10 range above 5k. That is *extremely* rich. My stock dyno showed somewhere in the mid 12's beyond 5k, and I believe russ's was in the high 12's/low 13's above 5k (that's just from memory russ, don't kill me if I'm wrong). What were the conditions like? Where do you live? Was it extremely hot? Did you have a fan running over the engine compartment during the runs? Did you let the car cool down before, or between, the runs?

Are you even sure that the a/f pickup was installed properly? Some people will respond saying that because it's a dynojet, there's really nothing for the operator to do, but that's incorrect. I've had 2 g sedans pull somewhere in the neighborhood of 30 runs on the same dyno. On some of the runs, the operator completely forgot to even insert the a/f pickup. On some others, it wasn't inserted very far into the tailpipe. On these runs, I registered a/f numbers well out of the ordinary. If I were you, before I'd start worrying that something weirds going on with the car, I would call the shop and ask them for *one* more run, complete with a/f, just to make sure that the readings were accurate. Just a suggestion.

 

Another example of someone irresponsibly posting false information.

The 05 revups make more power than the non revups. However, they make less torque. With the exception of your post, I believe this to be widely accepted.

Back in August of last year, my wife and I both attended a local dyno day. In addition to us, there was an 03 6MT Coupe, an 04 6MT Coupe, an 04 5AT Coupe, and an 05 5AT Coupe. Except for the 05 5AT Coupe, the other coupes(both manual and automatics) all had a decent amount of bolt-ons; ranging from full exhausts, to test pipes and intakes. My car(05 6MT sedan), with nothing more than the ztube at the time, was the 2nd strongest NA g there, less than 1hp peak off the leader. The 05 5AT coupe put down 225hp to my 242hp. Same dyno. Same operator. Same day. Do you still believe that the revups aren't making any more power than the non revups?

 

Trey's the Man. Listen to him.

I wouldn't worry about dyno numbers until your run at the track. If the car is pathetically slow, then worry.

 

Guy's

Here is some good reading. The writer here, does know what he's doing.
It might answer some of your questions about A/F ,,,, Dyno testing.
This guy can write way better than me.

http://www.dinancars.com/whitepapersFile.asp?ID=9

 

Here you go...

 

Don't worry, I had the same bullsh*t results. I had mine done in winter on a dynojet in 4th gear. G35_TX is the only one I've seen with respectable numbers.

 

Weather or air temperatures matter for dynos too... on a Mustang dyno (reads low), with only K&N filter and Z-Tube, I was getting 214-217hp on a really cold day, but I was getting only 204-207hp a few days ago...

 

I am not overly concerned that my car is not producing the 298 suggested hp rating. I'm confident it will with a tune. My biggest concern is mainly with the A/F, which I know was hooked up correctly. I'm trying to find out if everyone is running as rich as I am. From what I've seen, 12-13 is the norm, not 10. Could be a quark from the factory. Could be a faulty O2 sensor. Conditions during the dyno were appealing. 60 degrees. Fan blowing. Car cooled. Either way, this is my base line. I'm doing my Borla exhaust on Monday then a custom single turbo kit. This is my daily driver so it will probably take a few months.

This is my first import so please bear with me. I have always had mustangs. Currently have a streetable, built, turbo'd 1999 with 525rwhp and tq at 11psi. I won't get into what 18 psi gives. I do most of the work myself and have friends at a local shop that help and guide me when needed. This board is great. I have already learned a lot from reading endless posts. Thanks for everyones input.

 

Here is what SAE correcting and a little "smoothing" did. Check out the difference between G35 Tx and my A/F .