http://www.gtechpro.com/

I see these things advertised during the Formula 1 races on the Speed channel and have wondered if they are worth a crap. Anyone have one of these?

If they suck don’t be afraid to speak up (SilverSteel?), as I don’t think you’re a sucker for buying one. It would help keep me from being one.

 

I know a fella on the 928 boards that has one installed in his supercharged 928 - he seems to like it and considers it to provide legit data.

ymmv

 

Cool thanks. Hopefully others will chime in.

BTW, not to be an idiot, but you mispelled Unknown in your sig!

 

 

I have one, I like it. So long as you dial it in and config correctly its a good way to measure mods. Im not sure how accurate it is (I ran a 13.2 at the track and the G-Tech showed 13 flat - different days, different conditions but still).

 

That's accurate enough in my book since different days can mean different temps, tire conditions, etc... so that a .2 diff is reasonable.

Thanks for chiming in!

 

I just updated the FIRMWARE on my G-Tech..

Many are aware of the original...



This little Baby started a revolution... It was simple and accurate, Most important. The Results were able to be duplicated over and over.

Alot of work went into it and then they came out with this...



Updated and full of cool features. This is the one I picked up last year.

Since then there have been two more..

The SS



The RR



The SS has less features than the RR and is alot cheaper...

The SS has even less features than the original black one that I picked up.

Here is the SUPER COOL THING...

I have the old one, but got a firmware update to make it current with ... Not the SS, but the silly expensive RR!

Here is a link for those who have the "Mid Old G-Tech"

G-Tech/Pro Support

I'll post more info soon...

 

Before the UPDATE. There was a basic mode. Dragstrip Mode

It gave all the regular info like on a Dragstrip.

60Ft
330Ft
1/8th Mi
1000Ft
1/4 Mi

Plus 0-60
Braking Distance
Horse Power
Torque
Engine RPM ETC...

The New Firmware has another mode called "Road Racer"

It gives you the chance to record

Maximum Lateral G
Maximum Acceleration
Maximum Braking Foce
and Peak RPM.

What a sweet upgrade...

Here is Standard Driving Mode...



Here is Road Racer Mode...

 

This is the level of detail it gives...



I had lent it to my bud Paul to play with, This run is a comparison of our two Cars..

Paul Black Zero PSI
MP5T Red Ten PSI

The HP numbers are low because the car was in motion and the loss to aerodynamic factors is calculated. Basically, the number represents the amount of work (HP) that was needed to move the weight of the car and driver to the G forces over time. It's a real easy concept to understand with some basic math. However, congrats to the guy who busted his ***** to make it work!

 

Very cool, I just skimmed through the manual on their website.

How do they determine RPM? It looks like you calibrate it at select RPMs, does it detect RPM after that by a combination of g-forces/speed?

 

I have the RR FYI. you calibrate the rpm, best done while cruising to get it right....take a passenger to assist you in hitting the buttons!

 

The RPM is calibrated from the "Whine" on the alternator. It's a noise in the electrical system.

You calibrate like this..

The unit will ask you to select an RPM and then Hold that RPM with the gas. Once there, you push the button, It will ask for a second RPM and then you will calibrate for that one... Once these two points are done, It can calcualte al lthe RPM Band..

It's rather accurate..

 

Pretty clever - thanks for all of the great info guys!

 

I have one and find it fun to play with.

I am not sure how accurate the results are but they are fairly repeatable so I suspect it would be useful for looking at before/after mod changes.

Marc

 

The are very accurate if the entered weight is dead on.

No Guessing....

Take it to a weighscale.