tst and turbos

[PGoble]

Guys,



If you have any additional fueling mechanisms, you will lose hp/tq above level 5 or 6, as BRayls stated in his previous post. If you are a stock truck and add a TST, you can run the TST up to level 9 and not lose Fuel Pressure (You will lose your turbo if you are not careful though). My best dyno numbers came at level 5x5 (575 hp/1125 tq). The numbers dropped a little on 6x6 (550 hp/975 tq), and once I hit level 7/6, the numbers had fallen significantly (475 hp/860/tq).



This was not because the TST was not doing its job, it was in fact just the opposite. As the TST levels went up, the TST called for more fuel. With DD3 injectors and a pusher pump, the pressure began to drop obove level 5. Pressure went from 26,000 psi down to 17,000 on level 7/6. On level 5/5, fuel pressure stayed right at 26,000 psi. With my EDGE EZ stacked, the torque came in earlier, and the truck seemed like it was somewhat easier to spool, but the top number went down to 545 hp (on level 4/4) from 575 hp (on level 5x5). This makes sense because with the added demand for fuel from the EZ, one has to lower the setting on the TST to maintain rail pressure, but the lower TST setting keeps max HP/TQ down.



I did the same thing as many here on the TDR and blew my single turbo on the first test ride with the TST. I was running a DD Jammer with DD3 injectors and EDGE EZ. First time I tried level 7, I sent the exhaust side of the turbo down the exhaust pipe. I quickly replaced the turbo the next day and promptly twisted the shaft on level 6. I attribute this to the injector/TST combo, which adds to the amount of fuel being delivered at low RPM and the single turbo's simply cannot handle being loaded like that.



Since the installation of twins, I have had no issues with the TST, and actually like running it without the EZ. Even though my EZ has the "secret settings", it runs better with the EZ off.



My . 02



Peter

 

[Tomeygun]

and most SO's respond very well to stacked chips, As you can see

 

[PGoble]

and most SO's respond very well to stacked chips, As you can see

I noticed in your sig that you are running your EZ on level 1, not level 4, while stacked with the TST. I'm not saying that stacked boxes don't respond well, in fact I said just the opposite.

With my EDGE EZ stacked, the torque came in earlier, and the truck seemed like it was somewhat easier to spool,

What I am saying is that if you dyno your truck, it will post a higher hp/tq number without the EZ.



Peter

 

[Tomeygun]

I noticed in your sig that you are running your EZ on level 1, not level 4, while stacked with the TST. I'm not saying that stacked boxes don't respond well, in fact I said just the opposite.



What I am saying is that if you dyno your truck, it will post a higher hp/tq number without the EZ.



Peter

BTW - my comment (about the SO's and stacking) was a not directed to anyone impeticular, but to just those S. O. people out there



And I will find out about your last statement at the gateway srping break out event, I plan on running the TST on 9/9 and then adding the EZ... My thought is that the SO have such a low HP start, I think I can max out the TST (singles program, not twins) -- and still get HP from the EZ



Reason - Mark @ TST has found low-to-mid 400's to be the limit of the CP3 to keep the rail supplied with fuel... Well I make 198hp at the wheel stock, add 150hp from the TST box, and I have 350 -- That means i have another 75 to go before I max out my CP3 (which is where the EZ comes in)



Does that sounds correct?



PS - I run on EZ level 1 upon recommendation of EDGE

 

[SRadke]

Give me through the weekend Tom, I'll try to get some answers. All I can say right now is the TST's great, add a little pressure and it's spectacular. We'll see what the dyno says... ... ... .



-Scott

 

[Tomeygun]

Give me through the weekend Tom, I'll try to get some answers. All I can say right now is the TST's great, add a little pressure and it's spectacular. We'll see what the dyno says... ... ... .



-Scott

You with those Flux Injectors, and your Killer B2 - You should break 500 like cake (pressure on top of the TST)



You better post some graphs after you dyno, LUCKY!!!!

 

[SRadke]

What?..... I thought you said low to mid 400's was the CP3 limit... ... . I was just waiting for the graphs so I could proove you wrong I shouldn't be so cocky, it's hard to tell what she'll put down. Sure feels strong though Oo.



-Scott

 

[Tomeygun]

What?..... I thought you said low to mid 400's was the CP3 limit... ... . I was just waiting for the graphs so I could proove you wrong I shouldn't be so cocky, it's hard to tell what she'll put down. Sure feels strong though Oo.



-Scott

Honestly, I think you'll slip the heck out of the clutch (unless you upgraded and did not fill in your sig) before you'll break 500



Did I hear Dual Disk? what?

 

[SRadke]

I have a renewed faith in this little stock clutch. I've only smelled it once and that was my fault. It really holds pretty good considering, and all I'm asking for is one day of dyno pulls. Besides, it's a Dynojet. If it holds on the street it'll hold on a Dynojet.



As for a dual disk..... if one's good two's gotta be better, right



-Scott

 

[J.Davy]

Gypsyman,I finally called t. s. t and there is 3 different progams for the Power max cr. ,more if you count the small changes and improvments along the way. There is the twin turbo program,then they had the next one what is very close to the t. t. program the difference being the bottom end fueling is not quite as aggressive. The second program is the one I have and Greg told me that it is just about maxed out by level 5 . Then in sept or october they came out with the softer one where everything was supposed to be spread out more evenly.

 

[SRadke]

Give me through the weekend Tom, I'll try to get some answers. All I can say right now is the TST's great, add a little pressure and it's spectacular. We'll see what the dyno says... ... ... .



-Scott

In case anyone's interested here's my results with the setup in my sig:



TST 5/5 + a little pressure... ... 417hp/793tq

TST 8/5 + a little pressure... ... 503hp/841tq



I'm happy with that



-Scott

 

[Gypsyman]

J. Davy,



Wow, the different stories that people get from TST are just amazing. Too bad we can't all get the same answers from them. I tried another program two days ago and didn't like it at all with the twins. I have the twins program and had sent it back to Greg for some tweaking on the TE levels. I had asked him to just cut the TE levels by 50% to allow more adjustability with the VA stack. With the twins program I can lay down some serious smoke with the TE as low as 2 and the pressure on. With the modified version he sent back to me I can run the TE all the way up to 9 and no low end smoke at all. Problem being that my low end power went bye-bye along with the smoke. Feels like he sent me the slightly softer aggressive version that he told you about instead of just doing what I asked. For now I'm sticking with the twins flash.



Here's another item that they have been dancing around. FWIW, I ran the new, softer version for 6 months code and CEL free. Bought a second box with the aggressive flash and set the CEL and cam code on the third start. Put my original soft version back on and no codes. So I tried an experiment. I sent my original box back in and had it flashed to the twins program. Guess what, cam codes and CEL on the 3rd start again and they come back just as fast as they self clear. That tells me that the program is causing my codes and not the boxes. Greg was telling me that it was the box and not the program that was the problem. Proved that wrong.



Richard

 

[Digger]

On the same '03 truck that we did all our initial testing, we ran the stock turbo at many different engine speeds turning the fuel up until we hit 1400 F steady exhaust temperature. The single we tested, an S-300 Schwitzer to date got about 15 more horsepower to the ground before it hit the same 1400 F point. If we ignored temperature all together it made the same max power as the stock turbo. The stock turbo pulled strong from 1200 rpm while the Schwitzer could not be used at full power below 1600 rpm as it would surge continuously.

I came away from these tests feeling the stock turbo was best suited for the Ram. We are still going to test other turbos looking for one we would be willing to put our name on.



This is the response I got from Mark, when I asked him about dynoing the his truck with a different turbo.



FWIW

digger

 

[Tomeygun]

On the same '03 truck that we did all our initial testing, we ran the stock turbo at many different engine speeds turning the fuel up until we hit 1400 F steady exhaust temperature. The single we tested, an S-300 Schwitzer to date got about 15 more horsepower to the ground before it hit the same 1400 F point. If we ignored temperature all together it made the same max power as the stock turbo. The stock turbo pulled strong from 1200 rpm while the Schwitzer could not be used at full power below 1600 rpm as it would surge continuously.

I came away from these tests feeling the stock turbo was best suited for the Ram. We are still going to test other turbos looking for one we would be willing to put our name on.



This is the response I got from Mark, when I asked him about dynoing the his truck with a different turbo.



FWIW

digger

I am glad to see that Mark is jumping on the just any turbo... I will wait to see what he says is good, He seems to be pretty hard on turbos (on that mustang dyno) - So if it lasts with him, It'll work for me

 

[J.Davy]

Richard,mine definatley has been setting codes on my 2005 but never in my 2003 so I thought it might the stacking that was doing it. I have not run it very much on its own but soon as I get my flexplate in I will do some tests. Digger I got the exact same story from Mark as you ,which is good to know. I am waiting to see what Piers twins are going to do, they say they should have them dynoed by next week. I wish someone would send Mark a full b1-04 or another bigger single just to see if you actually gain any top end power.