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[drewmin]

Originally Posted by SRT8/BMW

correct! And as I said, I was/am skeptical too, except the 300C handled the STS-V, where the srt8 just hung with it. only the track will tell, but hear is a recent 1/4 mile run with the dashhawk:

Holy Sh!t I stand corrected Gunslinger - sorry! That is some wild stuff SRT8/BMW!!!!!

[The Gunslinger]

Sub-13s drag in a 5.7! Mate you have one awesome car there!
You ah... you didn't happen to be stealing tricks from Meister, did you?
I'm doing similar mods to my 5.7 when I get it, maybe one day get it cammed and PP, but I'm hoping to pull mid-to-high 5s 0-100kph times. JBA Short-tube headers, high-flow cats, Badlanz cutouts, AIRHAMMER and a B&G II.

[TheCar]

Originally Posted by stevesrt8

well, I guess your mod money was well spent.

I am curious though as to how accurate the dashawk is. I have not been able to find any independent reviews on it.

Anyone?

The dashawk is overpriced and inaccurate.

Read here as to why:

http://www.gtechpro.com/obdii.html

GTECH PRO is the only dash based numbers I will trust and the same is true with most of the magazines.

Good Luck...

[SRT8/BMW]

Originally Posted by TheCar

The dashawk is overpriced and inaccurate.

Read here as to why:

GTech-Pro OBDII

GTECH PRO is the only dash based numbers I will trust and the same is true with most of the magazines.

Good Luck...

I tend to think that is probably true..for acceleration the GTECH is very likely more acurate, since it was designed for that specific purpose. The dashhawk, after all, was a multipurpose device designed to measure critical engine data (which is the reason I got it- - all the new mods so I want to monitor engine characteristics) and not to measure 0-60s or 1/4 mile times. Those features are just an added bonus to me.

I have learned from doing a search on this forum, and both the Charger forum and LX forum, that the dashhawk measure trap speed differently than at the track, for example. It captures actual speed at a point in time, while track is measured as an average ot the last few feet of the track. Even in the dashhawk's own literature, it claims to be accurate in the 1/4 to within 2/10s if I remember correctly- - but thats a big margin for error. Thats why the track is the only true measure I would view as official.

DashHawk FAQ

That being said, in my searches where owners are posting times with the dashhawk, I am not seeing too much that makes me think its off. A viper posting a 3.9 0-60, and most stock 5.7s in the low 5s up to low 6s. So from a relativity standpoint, my times are "interesting." But, as I said, when I raced this 300C against my sts-v, it was CLEARLY faster and quicker than my srt8 by comparison to the Caddy. The sts-v is timed consistently in the 4.6-4.8 range in zero to 60, and I can launch it very consistently, and the 300C is beating it. So my conclusion....my 300C moves along nicely!


Lastly, that link you posted, is an advertisement for the GTECH after all...so I would take some of it with a grain of salt.

[stevesrt8]

Originally Posted by TheCar

The dashawk is overpriced and inaccurate.

Read here as to why:

GTech-Pro OBDII

GTECH PRO is the only dash based numbers I will trust and the same is true with most of the magazines.

Good Luck...

Absolutely agreed. When Car and Driver did a huge test of performance meters they rated it highly. Extremely accurate IF CALIBRATED PROPERLY! Most people do not take the time to get it leveled up.

[SRT8/BMW]

the other thing I would add, if I compare my car to cars with similar mods, also using Dasshawk, there seems to be some consistency in the measurements.

0 to 60 mph Time, Whats Good - Dodge Charger Forums

[JMone]

SRT8/BMW - when do you plan on getting a fan mod? This will be huge for you! Heat soak destroys my HP. Case in point: I drove about 25 miles at a considerable speed to a speed shop, had the car on the dyno. After two runs, we let the car sit, put the giant fan up to it, and cooled it off. The result of the third run, +50 rwhp. In your case it has to be at least 20-25hp that you're losing when it's warmed up. Good luck, and get that mod!!

[SRT8/BMW]

Originally Posted by JMone

SRT8/BMW - when do you plan on getting a fan mod? This will be huge for you! Heat soak destroys my HP. Case in point: I drove about 25 miles at a considerable speed to a speed shop, had the car on the dyno. After two runs, we let the car sit, put the giant fan up to it, and cooled it off. The result of the third run, +50 rwhp. In your case it has to be at least 20-25hp that you're losing when it's warmed up. Good luck, and get that mod!!

you are so right. I ordered the GSM mod several days ago and it has shipped..should be here today. The difference in the perfromance is so stark its almost hard to believe.

when we went out to the freeway to run my C versus my sts-v, and the temp on the C was below 195, it HANDLED the sts-v (remember-thats a 469 hp car that runs 13.2 stock-all day long). As soon as the temp got above 200, the V HANDLED the C...amazing.

When they dyno'd my car, they literally added the mods, pulled it down from the rack and put it on the dyno. No opprtunity for the flash to "learn" or no breakin or anything...plus a very HOT/Humid day. Thats why I am having it re-dyno'd soon--they thought (as do I) the 370 rwhp is understated as much as 10-15 hp.

[TheCar]

Originally Posted by SRT8/BMW

Lastly, that link you posted, is an advertisement for the GTECH after all...so I would take some of it with a grain of salt.

I didn't post that link to advertise for the GTECH PRO, buying one is up to the reader, people are smart enough to think for themselves. I posted the link to let people know OBDII based performance meters are INACCURATE, period.

For NON-PERFORMANCE based data retrieval (Engine data), they're great. However, for measuring horsepower, 0-60, 1/8th mile, 1/4 mile, etc, it is an inaccurate device and I believe the information in the link I posted explains this.

IMO, no matter how inaccurate the device is for determining performance based metrics, since people shoveled out the big bucks to buy the device in the first place, very few folks on the boards would admit the device derives inaccurate performance numbers even IF they knew it did. People saying the device is accurate with their track times, this applies to what I wrote above TO SOME DEGREE.

Inaccurate is relative isn't it, inaccurate by exactly how much? inaccurate in what ways? etc, etc, etc,.

For those with DASHAWKS, I'm simply saying that I wouldn't put my faith in the performance numbers the device computes.

The GTECH PRO has been proven to be the most accurate performance meter ever created. The majority of all the major car mags use it to derive their performance numbers. For $200 it's an awesome little piece of gear.

I have used them for years and they are dead on with my track times.

[TheCar]

Originally Posted by stevesrt8

Absolutely agreed. When Car and Driver did a huge test of performance meters they rated it highly. Extremely accurate IF CALIBRATED PROPERLY! Most people do not take the time to get it leveled up.

Car and Driver also rated the 2005 Chrysler 300c at 5.3 0-60.

This tells me that C&D is more than likely a mag that will "Polish" the numbers for a few extra advertising bucks.

Many mags do this with "incentives" from product manufactures and car makers.

As far as CALIBRATED, IMO the device should be designed in such a way that it doesn't depend on user calibration for accurate performance monitoring.