 in car dyno, how accurate |
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| r_towle |
 Oct 16 2005, 08:59 AM
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#1
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Custom Member  Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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does anyone have experience with the various in car dyno systems.
I would like to get something that measures but torque/hp and fuel ratio... Is there an in car solution that is not snake oil??? Rich |
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| Jake Raby |
Oct 16 2005, 11:25 AM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
www.race-technology.com
This is the datalogger that I use on the dyno AND in the test car....(IMG:http://www.aircooledtechnology.com/customers/bolsen/invitem24067.JPG) It uses a GPS based system and has internal accelerometers as well.. It IS VERY accurate, but its not cheap... It also logs lateral and straight line G forces.. Its not a "G tech pro" thats for damn sure. If you are serious this is a great system and you can log tons of things- the sky is the limit! |
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| Andyrew |
Oct 16 2005, 01:20 PM
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#3
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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G tech has been one of our faves...
THe old system seemed to be right on. If you know the weight of your car exactly, then it will work right on. We did some runs in the turbo with the g tech. 260 rear. then on the dyno was 255 rear hp. Old g tech doesnt record tq, new one does. I suggest getting the new one with a playback datalog... pretty sick.. Andrew |
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| 914werke |
Oct 16 2005, 02:17 PM
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#4
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"I got blisters on me fingers" Group: Members Posts: 10,140 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest
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Is that the "Pro" or standard ver . G-Tech?
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| Andyrew |
Oct 16 2005, 02:19 PM
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#5
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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I have the old standard version.
but the new one is just soooo much better... old version is 30 bucks on ebay... Not a bad bang for the buck... But if your going to do tuning with it, or really want to know more stuff, the competition (old one is pro) has much more features. |
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| Andyrew |
Oct 16 2005, 02:24 PM
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#6
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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(IMG:http://imagehost.vendio.com/bin/imageserver.x/00000000/mikemak88/GTECHPro1.jpg) Measures performance and safety characteristics of any vehicle. Measure 0-60 and quarter times, trap speed, 60-0 braking distance, horsepower, lateral/longitudinal G-Force, instantaneous and continuous G's. Arrives complete with instructions to show you how to input your vehicle's weight and get the results you want. It's like a portable Dyno and Drag Strip at your fingertips. Just plug it in and go! G tech pro, 30 bucks on ebay. BIN (IMG:http://i14.ebayimg.com/02/i/05/2b/4b/48_1.JPG) The new G-TECH/Pro Performance Meter COMPETITION is a very sophisticated, cutting edge automotive tuning instrument. Weather you want simple RPM recording or complete Data-Acquisition. As an automotive enthusiast you will find recording acceleration runs and analyzing shift points, delivered horsepower and reaction times extremely valuable. Just imagine, having all that power of knowledge right there under your fingertips any time you want it, that's the new G-TECH/Pro COMPETITION. So, no more confusion after making modifications now simply get the results "before and after". The new G Tech Pro SS Can do all these: Measurements: Horsepower Torque 60 Ft. Time 1/8th & 1/4 mile 0-60 & 0-100-0mph RPM & Shiftlights Handling Gs Record up to 30 runs 3 precision sensors 190 ebay The new G Tech Pro RR Can do everything the SS model can, and much more: Road Racing/Autocross PASS Software Multiple Vehicle Support 2hr data-acquisition PC Download Cable AC Adapter Permanent Mount 280 ebay |
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| TimT |
Oct 16 2005, 06:01 PM
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#7
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
The Race-Technology stuff is great. I have the DL90, which preceded the DL1 that Jake pictured. The amount of data that can be logged and processed is overwhelming.
I also have a Aim Mychron dashlogger this can store/analyze lots of info also. Both these units are more expensive then the Gtech, as with most things, you get what you pay for Attached image(s) 
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| Andyrew |
Oct 16 2005, 06:28 PM
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#8
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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And for A/F ratio
The LM1 unit from Innovate motorsportsis very nice and used widely. http://www.innovatemotorsports.com/xcart/c...ome.php?cat=248 If your just doing HP/TQ and a/f ratio, ie for tuning, then I think the Gtech and LM1 would be just fine.... |
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