Just Recently Got The TST
I love it. I have an 04. 5 6 spd with a little over 6K on it so my clutch is relatively new. Yesterday was the first day I drove on pavement that wasn't wet. I had it installed at TST in Columbus In. Met Mark and some of the guys and gals I had talked to on the phone. They are great folks.
First thing I noticed was that I really had a turbo cable of spooling up. The power comes on in 4th, 5th, & 6th and when it does hold on. I had mine set on 4/4 from the factory so to speak. I had to put it in 4wd just to keep the tires from slipping. The truck sounds better, more like a diesel. Mark explained that the sound was because of advancing the timing. Cummins retards the timing on the 600.
I kept it around 65mph on the way home and watched my overhead, TST on 4/4. I couldn't believe some of the numbers I was seeing. Now I know better than to trust that thing but it showed an increase of about 4mpg. I know it is really more like 1 or 2 at best. Will have to hand calculate from a full tank.
Interms of power let me explain it by a situation I had driving home from TST. Again keep in mind it was raining. I was in the fast lane passing and beginning to climb a large hill. I was trying to stay pretty close to 65mph so I wasn't stomping on it to pass. Someone came up from behind pretty fast so I started into the peddle. As I cleared the car I was passing the turbo spooled up pretty good and at about 70mph the back end kicked out because the tires couldn't hold traction, UPHILL! Now that is some serious torque and power. When my racing heart recovered and I could wipe the silly grin off my face I put it in 4wd and continued my ride home.
The manual suggests going no higher than 5/5 on a 6spd. I use this guideline where the sum of torque and power = no more than 10. I have tried 6/4, 7/3, 8,2 etc. Power without torque to me is silly so I try to have some. I just mainly wanted to see what was available in terms of HP on the higer settings (smoke, seat of the pants feel etc. )
I mainly keep at 5/4. I figure this is the most performance I can get and keep the stock parts for a while. On the TST website they have some dyno stats that indicate a stock 600 to get around 295HP and 515LBFT. Taking this into account, setting 5/4 is getting me a around 405HP and 755LBFT. Stock clutchs vary. I haven't felt my give yet but I don't want to push it. They say that it will give out around 800LBFT. If I go above 405HP I can see a difference in EGT's. Mind you they're not bad, infact very manageable with no load. I haven't even come close to 1350 with some hard acceleration runs. In terms of EGT's and towing I would stay within the recommendations of the TST website.
You can't beat the digital gauges. It's nice to be able to make sure my EGT's are below 300 before I turn my engine off.
All in all I'm very satisfied. I had the same decision to make between TST and Edge. I went with TST because of the EGT limit defueling, more power from the stock parts, gonzo power with a new clutch and pusher pump, built in gauges, TST in Columbus In. is relatively close to my home, they do testing for Cummins which is right down the streetfrom TST. Mark the owner used to work for Cummins and really knows his stuff. The way I thought about it was that I could have saved a couple of hundred getting Di procol gauges and Edge EZ but I wouldn't have had nearly the amount of adjustability, HP and Torque from the stock parts with the capability of future expansion. The remote module doesn't take up nearly as much room as a triple or double gauge mount and is very easy to see in the day with sun on it or at night. If you want you don;t have to look at them at all with the auto defueling based on EGT temp.
In all fairness I have never driven a truck with an Edge EZ and I'm by no means an expert. I have spent countless hours researching and talking to folks and am very happy with my decision.
Hope this helps.
