The APS transmissions can be set up to take a beating
and with the right upgrades and a shift kit (which is really a reprogramming
of the transmissions valve body)
............
The 3.9 is rated at 175 HP ...and 225TQ......Typical dyno results are
between 125 and 137 depending on the transmissions used.......manuals are
slightly higher due to less power loss thu the driveline.
Rear differential gearing and tire size will have little to do with the
results of the dyno.......
Track testing will be effected by gearing and tire sizes due to better
leverage propelling the truck down the track....
Ron-
Co-owner: Muscletrucks.net
website: www.muscletrucks.net
e-mail: scsilverdak@hotmail.com
----- Original Message -----
From: "Josh Battles" <jbattles@bankfinancial.com>
To: <dakota-truck-moderator@bent.twistedbits.net>
Sent: Tuesday, May 06, 2003 5:34 PM
Subject: Re: DML: Dyno Results
>
> "Droo" <03dakotaCC4.7_4x4@comcast.net> wrote in message
> news:3EB822D8.8090203@comcast.net...
> > 130 hp? That sounds low to me. I took my 96 3.9 out to the track one
> > night. Did 17.2 in the 1/4 and scaled it at 3980 lbs. Run that through
> > some equations and I get about 154 hp at the wheels.
> >
> > --
> > -Droo
> > Email: 03dakotaCC4.7_4x4@comcast.net
>
> I was hoping more towards 140-150 myself, but I think my craptacular
> slushbox of a trans is eating more than it's should to be. If you do the
> math, 20% of 175 (at the crank advertised, right?) is 35hp. Subtract that
> and you end up with 140hp at the rear wheels. There's gotta be something
> else going on there b/c sometimes it pulls WAY harder than others. I
> checked the fluid level and it's golden, and does not smell funny at all.
>
> Leads me to believe that this trans (that was put in 10/2002 and has only
> seen about 18K miles) is just about toast. I've adjusted the TV cable a
few
> times and that makes a difference for a little while and then it's back to
> the same old tricks. If (when) it blows up, I'm either putting an auto
from
> APS Precision in there (built to take a 100 shot - at least) or just doing
> the switchover to a manual. If I go that route I'll probably put an
NV2500
> in there and swap the rear end to a 4:10 posi unit. It all depends on my
> financial status when it goes.
>
> How durable are the APS transmissions? Will it take the SEVERE beating
that
> I'll be handing it? The first trans managed to last about 34K miles and
it
> seems that the rebuild (which is signed/dated by the tech that built it)
> just isn't up to snuff performance wise. The truck gets used pretty
heavily
> for autoX racing, drag racing, and just crusing around town.
>
> --
> - Josh
> Lowered 2000 Dakota CC 3.9L
>
>
>
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