Does anyone know the E-mail address to Art at JET so I can ask him
something?
Thanks
-----Original Message-----
From: Holloway,Frank T <Frank.T.Holloway@KP.ORG>
To: 'dakota-truck@buffnet.net' <dakota-truck@buffnet.net>
Date: Monday, August 10, 1998 8:33 AM
Subject: DML: RE: Re: Dyno Results on the R/T with Jet Chip
>Mike,
>
>All of my work is on a dyno, we measure fuel, ignition, monitor the
>outputs of all sensors
>(O2, throttle position, egt, etc, etc, etc), we log all inputs and
>transfer to a PC for analysis,
>we even plot BSFC (Brake Specific Fuel Consumption), on a lot of the
>pulls. I am really
>pleased with the results I have seen from the Jet chips (I & II), given
>the fact that we must
>work with these "black boxes). You must have a faulty chip. I'd really
>be interested in what
>they tell you the problem is, so keep me informed.
>
>> -----Original Message-----
>> From: Mike Catlin [SMTP:Catlin@erols.com]
>> Sent: Monday, August 10, 1998 5:01 AM
>> To: dakota-truck@buffnet.net
>> Subject: DML: Re: Dyno Results on the R/T with Jet Chip
>>
>> >Frank wrote:
>> >I just read your post on the Jet chip & I am really confused on the
>> >numbers. A couple of questions and suggestions for you because even
>> >with the Stage I chip you should see better results.
>>
>> >1) Are you running a Stage I or a Stage II chip, with the TB Mods
>> > you should be running a stage II.
>>
>> I was running the stage II chip.
>>
>> >2) Were you running premium grade fuel, both chips are sensative
>> > to fuel (advanced timing).
>>
>> I have run premium in it since the day I got it.
>>
>> >3) What were the torque and horsepower figures from 2,000 RPM and
>> > up (hopefully they gave you the plots so you can compare them).
>>
>> They have to start from 3,000 RPM since the trans kicks down out of
>> 3rd gear on the dyno when you do full throttle any lower than
>> 3,000 RPM.
>>
>> >4) Were the torque and horsepower numbers (raw numbers), or were
>> > they adjusted to standard temp, barometric pressure and humidity.
>> > I know this might be a stretch, given the pulls were so close
>> > together but it still might explain the low numbers on the Jet.
>>
>> Raw numbers no adjustments. As far as low numbers for Jet the 2 pulls
>> were done in identical conditions about 5 minutes apart so the jet
>> chip still had lower HP numbers even though I did the first pulls with
>> the Jet chip on a cooler engine. The guys at the dyno said my first
>> pull numbers should of been higher since the engine was cooler.
>>
>> >5) Did the torque and horsepower peeks change in RPM between the
>> > pulls with and without the chip. If they didn't change the
>> > chip might be faulty.
>>
>> No real change.
>>
>> >6) Did they give you ignition plots from the pulls, (you should see
>> > a more aggressive ignition curve with the Jet chip). If you don't
>> > see a difference in the ignition curve, send the chip back
>> > to Jet for replacement.
>>
>> No, and Yes I am sending it back. I will be calling Jet this morning
>> to find out what the deal with this chip is. I may be willing to try
>> a replacement chip if they say this one is faulty. I will be asking
>> to
>> see their dyno printout on the chip since they told me in an E-Mail
>> that I should expect to see a 20-22 HP increase not a HP loss.
>>
>> >I have seen an increase in both torque and horsepower from approx.
>> >2,000 and up generally in the range of 10-20 horsepower and 15 ft/lbs
>> >torque.
>>
>> Was this on a dyno or G-tec? If so maybe I do have a bad chip. I can
>> tell you one thing I have for sure right now is a bad attitude. This
>> is beginning to feel like my $700 ignition fiasco. I'll post to the
>> list what Jet chip has to say after I contact them this morning.
>>
>> Mike (My blood pressure is rising) Catlin
>
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