[MR2] Dyno testing

Fri Aug 24 14:44:25 EDT 2007

Once again Mr Volkman hits the nail on the head.  If you put in a lighter or 
heavier weight (this is wet weight including you) you will get a result 
which deviates from the actual.  But, even so, if you make a mod and run the 
test with the same conditions (same road gradient, temperature, humidity, 
fuel, etc) you will get a good idea of the effect of your mod.  In the past, 
some list users have graphically shown the effect of adding those pretty 18" 
wheels and low profile tires.  If overall performance is your objective, put 
in a half tank of gas and go to the truck scales and get a read.  I don't 
know about where you live, but its free down here in MS.

" Mom, when I grow up, can I be a nerd?"
----- Original Message ----- 
From: "Ted Volkman" <tvolkman at gmail.com>
To: <marc at marcmedina.com>; "MR2 List" <mr2 at mr2.com>
Sent: Friday, August 24, 2007 12:52 PM
Subject: Re: [MR2] Dyno testing

>a unit like the gtech is only as accurate as the input information.
> however the repeatability is what you are actually interested in.
> that is if you are indeed looking for comparison of before and after
> modifications
>
> -- 
> ted
> 93na->3sgte, t3/t4 (sw21)->gen3, 264s
> 94T 6 speed, aem, etc...(jza80)
> 89na (aw11)
> 88sc (aw11)
> 98 honda vfr800
>
>
> On 8/24/07, Marc Medina <marc at marcmedina.com> wrote:
>> Probably easier to ask them these questions, or see if ther eis an FAQ on 
>> their site. I'd like to know too, as it would be cheaper in the long run 
>> than making a 200 mile round trip to the dyno and then having to pay on 
>> top of that. Although I think the chassis dyno is the most accurate.
>>  Marc
>>
>> waynearndt <waynearndt at waynearndt.com> wrote:
>>
>> And how does it know when you've gone 60 ft, or 100 ft? And differentiate
>> between horsepower & torque? Seems like it would need some type of data 
>> input.
>>
>>
>>
>> ---------- Original Message -----------
>> From: "Steve Meisner"
>> To: N/A
>> Cc:
>> Sent: Fri, 24 Aug 2007 12:59:20 -0400
>> Subject: Re: [MR2] Dyno testing
>>
>> > I believe it is based on the force measured by an accelerometer as
>> > you launch. Do you need to configure it for weight of the vehicle
>> > and nose drag? There is no cable for the OBD port.
>> >
>> > -----Original Message-----
>> > From: mr2-bounces at mr2.com [mailto:mr2-bounces at mr2.com] On Behalf Of 
>> > waynearndt
>> > Sent: Friday, August 24, 2007 12:43 PM
>> > Cc: mr2 at mr2.com
>> > Subject: Re: [MR2] Dyno testing
>> >
>> > Cool, thanks. I found them at http://www.gtechpro.com So how do
>> > these work? Do they just have a cable that plugs into your ODB1/ODB2
>> > port?
>> >
>> > -wayne
>> >
>> > ---------- Original Message -----------
>> > From: Joseph Obernberger
>> > To: Kevin Parker
>> > Cc: waynearndt , mr2 at mr2.com
>> > Sent: Fri, 24 Aug 2007 12:30:59 -0400
>> > Subject: Re: [MR2] Dyno testing
>> >
>> > > The new ones are very impressive - they can monitor RPM from the
>> noisesignal from the cig lighter. I'm very pleased with them - I have 
>> theold
>> model and one of the new ones. Here is some information on them:
>> > > http://www.lovehorsepower.com/MR2_Docs/GTech.htm
>> > >
>> > > You can pick them up at many places - including summit racing.
>> > >
>> > > Joe
>> > > http://videos.lovehorsepower.com
>> > >
>> > > Kevin Parker wrote:On 8/24/07, Joseph Obernbergerwrote:
>> > > Anotheroption to test before and after modifications is using the
>> > > GTech meter. It works very well, gives you a graph of HP and torque,
>> > > and is very consistent as long as you follow the directions (straight
>> > > flat road, repeat tests etc.).
>> > >
>> > > I borrowed one of the first generation GTech Pro's. I remember it
>> beingfairly accurate (at least compared to my estimations). Your
>> commentmotivated me to go look at them. WOW! I like that RR model. I plan
>> ongetting back into autocrossing when I get back home. I'm starting toget 
>> the
>> itch to drive hard again and that's the safest place to do it.That, and I
>> wouldn't mind attending a track day somewhere. Anyway,these things have 
>> gone
>> seriously high-speed. Matter of fact, for whatWayne is looking for, I'd
>> recommend it. You can do a run, thenadjust/modify at your leisure and do
>> another run. I like it. I put in apurchase request with Ginger. We'll see 
>> how
>> that works out. :) Ofcourse, I won't use it until November-ish, but 
>> that's cool.
>> > >
>> > > --
>> > > Sincerely,
>> > > Kevin Parker
>> > > ><>
>> > > "Look, these people, they have no jobs, no food,
>> noeducation, no future. I just figure that we have two things we can 
>> do.Help,
>> or we can sit back and watch a country destroy itself on CNN. "
>> > > -SSG Eversmann, Task Force Ranger
>> > > "Blackhawk Down"
>> >
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>> >
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