How do these two boxes compare? Is there a hot version of the TST like the Comp?

 

Yes there is a hot version for the TST. I have it and do not like it.


Here goes the long story of my rig and my dislike for the TST......: When I first got my TST PM3 adjustable with the built in digital gauges, I felt that the box was entirely too lazy to add fuel. It made the engine very peaky. It added lots of fuel from about 2,000 RPM on, but almost none prior. Granted the box does not look at RPM, only boost, and in my case boost might have been a little lazy coming up, but you need to add fuel to make boost so this was a catch 22. The digital gauges are totally lame, they have a very very slow update which makes them useless for anything other than towing (for nice long steady pulls, the numbers will steady out and are readable, for blasting around the street, they lag so far behind the engine they are useless). And the small buttons to raise or lower the levels are so small and hard to push it takes literally a minute to get from 0 to 9. I really grew to hate the box, as I was constantly waiting for the fuel to hit and when it did, it whipped up to 3,000 and it was time to shift already. I didn’t get a Cummins powered pickup to have a 1,000 RPM usable RPM range. So then I did lots of reading and found out that I can stack an EZ with the TST and that it helps the bottom end dramatically. So I got an EZ on Ebay and installed it. WOW!!! WOW !!!! WOW (did I say WOW??). What an improvement, like night and day. So now life was good and I was very pleased with my combo. The fuel hit nice and early and stayed on to 3,000 RPM. So then, as always happens, after a few months I got bored, so I decided to send my PM3 in for the competition upgrade. It comes back, and now the only difference is that level 4 is like what 9 used to be and there is no noticeable difference between 4 through 9. Also, it can and does buck and shudder a bit at settings above 2.

After driving another guy's rig who has the Edge Comp, I have now drawn the conclusion, that the way to go is to buy an Edge Comp and real analog gauges. I could have done this cheaper than the TST and EZ . Plus the Edge comp has the benefit of buttons that you can actually depress and two different adjustments which control the rate of rise and total fuel added, separately. Plus by all accounts on here, the drag version of the comp is positively outrageous...

So, do you want to buy my TST PM 3 comp version cheap???????


KP

 

600...how cheap...id like to stack that with my van aaken as it a beast down low but doesnt have the top end i want

 

get the comp. great box, and i like mine

 

Thanks for the info. I already have a Drag Comp, I was just curious about how good the TST is? Is it really good for 180hp? that's insane.

 

I, and the rest of the world, will probably tell you get the comp, and move on. You'll never look back.

 

In my setup with everything else constant, the TST PM3 Comp added 188 hp and the Edge Drag Comp added 233 hp when switched on.

brandon.

 

As already said...stay with what you have.
I believe the TST Comp, stacked with an EZ might be as strong...but the TST Comp Model seems to overload the VP44 and shutters when used on full power.

If I had it to do over again...would probably go with Drag Comp....although I do like the dyno graph (HP) better for the TST box. It climbs to max HP and holds it very level all the way to 3100 rpm, where the box starts to defuel.
Every Comp Box dyno I have seen is irratic...with lots of peaks & valleys on the HP curve; and many seem to drop off some above 2600+/- rpm. But They sure do appear to drive soothly...with lots of power all the way up.

RJ

 

I always been puzzled why TST doesn't do what EDGE does in making the "drag" feature only on the highest possible setting.

It seems that the TST "comp" version loses all adjustability and is either off or on race mode.

However, a Drag Comp is just like a normal Comp on the lower levels, and behaves well. The animal only appears on 5x5.

jlh

 

I don't know where the Drag Comp fits into the equation, but a regular TST stacked with an EZ gives more more than a standard Comp.

 

Always wondered about that. You have had both?

RJ

 

For the money and the performance I wouldn't see why you wouldn't go with the COMP!!! Mine is freakin great, I love everything about it, especially the fact that I don't have to spend more money to buy other chips just to get it to perform. With the TST and the digital gauges running almost a GRAND and then having to stack it with an EZ which is what around $500?? to get in the same ballpark as the COMP or even the Drag COMP......................no thanks!! I'm not trying to dog TST, they make some cool stuff and I'm sure a TON of people love theirs, but for me I'll just stick with my COMP. It does exactly what I need and want it to do

 

Good point, and I agree...but your a little off on the money.
With the Comp or drag Comp...you will need gauges also....so add a few hundred!

I already had gauges and an EZ for 18 months...added a TST PM3 without gauges for $649.00 .

But starting from scratch today....and buying new.....Edge Comp Is less expensive way to go.

RJ

 

Well yeah I am off on the prices it was just a rough guesstimate, I was just using those #'s as an example. Also I was assuming that most people have gauges already seeing how that was the first mod most people do.

Another little thing on those chips, I guess I would rather have something a little more simple than the TST, it just has way to many settings to confuse me!!! I'm more of a simple kinda guy

 

I've not personally tried the TST/EZ combo but had the old 3 level Edge/EZ combo. Ran that combo for 3 years before having to convert to the Comp. Dynoed many times on Edge's Mustang dyno comparing the Comp to Edge/EZ combo, and the old way was 12-15 hp better, which would be even greater on a Dynojet. The Edge boys claimed the difference was in the way the old Edge boxed fueled, vs. the Comp - something in the programing, I think. Somebody over on the TDR compared the TST/EZ to the Comp and came up with the same results. As I understand it, the TST and old Edge are very close in power gains with maybe the TST a little better. The TST box sure used to have a very loyal following and I always wanted to try one.