Zzzzzzzzzzzzzzzz.....you done yet?
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Bob Mankin
Sent: Friday, August 22, 2003 6:14 PM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: injectors
Bernd, your own info that you provided earlier is lower in this post.
You stated, I assume taken from your reference source, that '97-'04 were
12 +/- 1.2 ohms. Take your digital meter out and measure the impedance
on the design III you had tested(as Tony did) from the '01 R/T app or
whatever it is you pulled it from. See for yourself the ambiguous nature
of the published data.
Here's the rundown of the two injectors tested on Wednesday:
Part No. 53030778 injector for 5.9 and some 5.2L apps from '97-mid '00
flow tested at 234 cc/min @ 43.5 psi test pressure
Part No. 53031740AA injector for 5.9L apps from mid '00-'03 flow tested
right at 200 cc/min @ 43.5 psi test pressure.
For those that don't know, divde the cc/min number by 10.5 to get the
lb/hr. rating. That would give you 22.2 lb/hr and 19 lb/hr units,
respectively @ 3 bar or 43.5 psi test pressure.
Testing done at R.C. Engineering by Russ Collins himself. Call him if
you'd like to verify the data. He's forgotten more about injectors than
most of us will ever know. At a minimum you should visit his site at
http://www.rceng.com and read the technical section for some very good
formulas which come in handy.
If you used a later model red top injector with the above part number in
an earlier truck, by my calculations you effectively cut back the fuel
delivery in open loop by 16.8% Not an insignificant figure, IMO.
Still wondering why it was lean????
Bob
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net]On Behalf Of Bernd D.
Ratsch
Sent: Friday, August 22, 2003 3:37 AM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: injectors
Both you and I in this case (and now the books are wrong?!?). You have
your data, I have mine. Now which one is correct?
(BTW: Early 00 models came with Design-II, mid to late model 00 came
with Design-III)
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Bob Mankin
Sent: Thursday, August 21, 2003 7:47 PM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: injectors
Then I have to say the book numbers are wrong(won't be the first time).
This testing was done at a highly regarded shop. Name withheld to slow
down the snoops. LOL. Kinda like the earlier impedance data you posted:
> > >Factory Injectors: 12 +/-1.2ohms (Factory Spec - '97-'04)
> FMS "High
> > >Flow": 14.3-14.5ohms
> > >Design-III: 15.2-15.3
Design III -IS- the factory injector style for '00 and up.
Not sure where this thread was supposed to go, Bernd. Offered up a
suggestion as to why your deal might have been lean, but you refuse to
accept it. The powertrain guys say the impedance is not an issue, Tony's
experience says it's not an issue, but you're insisting it is an issue.
Dunno man. We're kickin a dead pony at this point.
Bob
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