blackdiesel

have i seen a tst pm3 comp? What is it rated at? is it that much of a increase on a HO engine? is it worth the extra $$??

cummnz4x4pwr

My tst pm3 comp was rated at 160hp I have a buddy (yeah its one of those) that says his is rated at 200hp....on the tst web site it says that they will custom program it to your needs, and yes it is definately worth the extra cash,IMO, but Im not so sure on the ho engine, mine was an SO.

Jake

CTD2001

I just talked to TST yesterday to order the right Map sensor harness for my truck, they said the Comp box is rated at 180hp and 450 ftlbs, but that was on an S.O. motor, they said about 90hp or so on a H.O. motor

graphitecumnz

sounds like the regular PM3, not the competition version.

CTD2001

It is possible that he was talking about the no comp version when he said 90hp

600 Megawatts

I have the TST PM3 adjustable unit. I sent it in to get converted to the competition version (you have to sign a waiver). In my case, it did absolutely JACK except make setting 4 like setting 9 used to be and now there is no difference at all between setting 4 all the way up through 9. Now, that being said, I have an HO, and it is the original VP44 with 116k miles on it. It is probably the case that my pump simply will not put out any additional fuel regardless of what the computer is telling it and the comp version is so hot that by setting 4 my pump is maxed out. I have heard that on a hotrod VP44 truck, the comp version is worth a bunch and continues to make more power as you increase up to setting 9.



Kp

Sea Bass

That sounds about right from what I've read. HO's won't have the gain with boxes that SO's will with the stock injection pump. I've heard others say that 90 is about max.. even if you're at max power for your vp on not.

NoSeeUm

Have you tested the settings 5-9 on a dyno or SOP? For me, I don't feel much improvement on settings 6-9, but that is just SOP. I am not sure what RPM you need to be at to get the 120 Hp improvement. I generally run it on 5.

BTW, I'm good for about 600MW on a good day!

Jim

95ram

All depends on what you want to do with the truck. If you want to run it over 3 grand then you'll need the comp as the regular PM3 doesn't fuel over 3. I'd say for about 90% of people with HO trucks the standard PM3 is just fine. You wont gain much of anything with the comp on an HO except for a few FPTQ.

possum67

i no my truck is a so so i dont no how mutch diffrence you will get on the ho but there was a large difference in my truck it made my current level 2 like my old level 4 and mad level six mean i havent went higher than 6 cause stock turbo wont keep is cool but i now it was well worth the 50buck plus shipping to me

RowJ

Both these #'s make no sense to me???
The TST PM3 is rated at 120 hp... a little less on an automatic.

Anyway... I get a noticable difference from the PM3 Comp on my SO from #5 (which is #9 on reg PM3) up to #9. Can definately feel it.... and it dynos 20-30 hp more on my automatic!

My reg PM3 fueled over 3000 rpm.... but that may be due to the reprogramed ECM from the Smarty??

For the $50.00 Comp upgrade price it's cheap...but not real usable...due to the shudder (cavitation) after letting off the throttle. Can't be the best thing for the VP-44.

The regular PM3 is set up for the max fuel available from the VP-44!

RJ

blackdiesel

thats what i needed to know rj! thanks alot

BigBlue

The HO's don't respond as well to wire tap boxes as the SO's do because of their injection pump. They do however respond better to injectors than an SO does.

CTD2001

If you go to TST website and go to their FAQ section it says this


"The PMCE (Competition) adds 180 HP and 450 lb-ft Torque (on level 9) for the standard engine. The HO (High Output) engine (2001-2002) already has 245 HP and the PMCE (Competition) does not make as much of a difference and adds 80HP and 310 lb-ft of Torque."

possum67

For the $50.00 Comp upgrade price it's cheap...but not real usable...due to the shudder (cavitation) after letting off the throttle. Can't be the best thing for the VP-44.



havent noticed mine shuddering when i let of the throttle is that a normal thing with the tst comps ran mine for 35000 miles now with nothin but grins from it with no shudders (but i dont like the way the cruise control acts with it set higher than #3)