egts with tst???

[Prairie Dog]

Remember that levels 6 through 9 are for drag racing so the exhaust temps won't be around that long anyway. I've only gotten it up to 4/4 and at that level it touched 1100 for a short time and then dropped slightly. It's real impressive there, (s/b about 80 HP and 160ft lbs) pulls HARD with very little smoke. I do have a Bully dog intake setup for whatever it's worth. Still have stock exhaust. No codes (yet?).

 

[Prairie Dog]

By the way Tomey and 98slushbox, how have your stock clutches held up?



Scotty



P. S. Tomey, don't feel bad about the 7/7 limit - I havent had the nerve to go beyond 4/4!

 

[XcumminsX]

You huys should try a Scotty III.



Nick

 

[machinemover]

I am running mine at 6 with tq at 8. I do have the AFE filter and a 4" auroturbine exhaust. I am pulling a 40' utility trailer and about 22,000 lbs. I am not even nearing high exhaust. 1200 is about tops, I can't believe it. I am scared to try any more power. I notice considerable power but a 7% upgrade the other day brought me to about 35 mph. Why? don't really understand. I don't have a fuel pressure guarge and I am wondering if I am peaking this thing out. What do you guys think?

 

[Tomeygun]

i think something is wrong with your gauge...



I can peg 1300 with in 5 seconds on the highway, wierd thing with the turbo though, it pegs to 35 psi, and then falls to 25 and then climbs, I think the wastgate is slapping open, then closing, and so on, and so on... i will try the Edge EZ boost elbow, I dont like the TST one very much, to much guessing

 

[chessie-system]

Originally posted by Lonestar

I had a lot of major concerns with the PMCR. After trying two modules I have since sent them both back for a refund. My problems arised mostly from my own lack of preparing for the module. I am still running a stock turbo/manifold.



When accelerating hard, my egts would reach 1800 in minimal time.



1800 degrees????? I can promise you that if this were the case you would be pulling the top of the pistons out of the exhaust side of the turbo. Gas turbine engines do not run that high under normal load conditions.

Running AFE drop in, 5" straight pipe and power on 3/7 I barely touched 1300 with no boost elbow installed and that was flooring it above 2000 RPM. You can't run these super high EGT's empty for long. You run out of RPM or you run out of Speedo.

Jeff

 

[Tomeygun]

jeff, have to tried levels 7/7 or 6/6... Any reason you are running a low HP level, I would think that would be wierd... , like the power would come on supper strong, but then back off... (because of low HP setting)



does it do that? AND could it be you EGTS are in check because your high rpm fueling is low (setting 3)??



hmm...

 

[SRadke]

I interpreted that at 3 torque and 7 hp. This would make more sense. Not wanting to smoke the clutch with torque but still have the high end.



-Scott

 

[Tomeygun]

that certainly does make more sense, scott



I would see how after the 7torq level is over and the higher RPMS come on, and then you are in the 3level HP, the EGTS would be controlable, heck, you are only on level 3 hp. .



So which is it jeff ??

 

[mgonske]

Originally posted by tomeygun

... i will try the Edge EZ boost elbow, I dont like the TST one very much, to much guessing

tomeygun,



I have both elbows on the shelf (not installed) yet, but haven't looked at them closely--what is the differenced you've noticed?

 

[BillGotthelf]

With my stock turbo I see 40 lbs of boost briefly at 4/4 but have not seen anything higher than 1050 evan towing. 6 spd might make a difference.

 

[kbond]

pre or post temps?

Originally posted by machinemover

I am running mine at 6 with tq at 8. I do have the AFE filter and a 4" auroturbine exhaust. I am pulling a 40' utility trailer and about 22,000 lbs. I am not even nearing high exhaust. 1200 is about tops, I can't believe it. I am scared to try any more power. I notice considerable power but a 7% upgrade the other day brought me to about 35 mph. Why? don't really understand. I don't have a fuel pressure guarge and I am wondering if I am peaking this thing out. What do you guys think?

where are you capturing your egt's? before or after the turbo?

 

[kbond]

pre or post temps?

Originally posted by machinemover

I am running mine at 6 with tq at 8. I do have the AFE filter and a 4" auroturbine exhaust. I am pulling a 40' utility trailer and about 22,000 lbs. I am not even nearing high exhaust. 1200 is about tops, I can't believe it. I am scared to try any more power. I notice considerable power but a 7% upgrade the other day brought me to about 35 mph. Why? don't really understand. I don't have a fuel pressure guarge and I am wondering if I am peaking this thing out. What do you guys think?

where are you capturing your egt's? before or after the turbo?

 

[Lonestar]

Originally posted by chessie-system

1800 degrees????? I can promise you that if this were the case you would be pulling the top of the pistons out of the exhaust side of the turbo. Gas turbine engines do not run that high under normal load conditions.

Running AFE drop in, 5" straight pipe and power on 3/7 I barely touched 1300 with no boost elbow installed and that was flooring it above 2000 RPM. You can't run these super high EGT's empty for long. You run out of RPM or you run out of Speedo.

Jeff

Well, I can only tell you what my gauge said. I don't blow smoke. Perhaps I exagerated slightly, it was 1789* as pulled from the tattle-tale function on my gauge.

Now that was level 9/9 WITH Diesel Dynamics stage 3 injectors. I didn't pull this number from no where.



I think if you ask around, you will find several people pegging 1500* gauges with ease.



KEEP ON TRUCKIN'

Lonestar

 

[kbond]

Originally posted by BillGotthelf

With my stock turbo I see 40 lbs of boost briefly at 4/4 but have not seen anything higher than 1050 evan towing. 6 spd might make a difference.

40lbs and way out of the map of that turbo.

 

[kbond]

Originally posted by machinemover

I am running mine at 6 with tq at 8. I do have the AFE filter and a 4" auroturbine exhaust. I am pulling a 40' utility trailer and about 22,000 lbs. I am not even nearing high exhaust. 1200 is about tops, I can't believe it. I am scared to try any more power. I notice considerable power but a 7% upgrade the other day brought me to about 35 mph. Why? don't really understand. I don't have a fuel pressure guarge and I am wondering if I am peaking this thing out. What do you guys think?

22000lbs is alot. What would you expect speed wise?

 

[BillGotthelf]

KBond-I understand that and I am only saying what I see on the gauges. I got one of the first boxes and have over 4,000 miles on it now.

 

[Tomeygun]

Originally posted by mgonske

tomeygun,



I have both elbows on the shelf (not installed) yet, but haven't looked at them closely--what is the differenced you've noticed?

Well, i think the EZ elbow more accuratly hits 35 lbs - AND STAYS, where as my TST elbow, I turned back down a bit and I do not want to guess at to how much boost I will make, the EZ elbow should be a a perfect 35 lbs... . I am having some wastgate problems now, like the TST box comes on SOOO fast, it slaps the gate open late , like AT 35 lbs... then the boost is lost to like 25 lbs, then climbs. . I will let you know how the EZ eblow works



Cya

 

[MCummings]

I'm teraing into my 12V at teh end of this month, and hopefully I wil have picturs for yall so yall can see what 90PSI, and 1800++ EGT does to these motors.



My 24V I just pulled apart had very pretty pistons,, albeit shrunk a little, they were very pretty and that truck saw 1500+ Everyday, and cruised at 1,000*



Merrick

 

[chessie-system]

Originally posted by tomeygun

that certainly does make more sense, scott



I would see how after the 7torq level is over and the higher RPMS come on, and then you are in the 3level HP, the EGTS would be controlable, heck, you are only on level 3 hp. .



So which is it jeff ??

Yes it will do that. Things you have to keep in mind are where to pour on the coal in the rpm band. Our engines were originally designed for 2500 RPM max and operated really nice in the 1400-2300 RPM range. The idea with all diesels is keep your operating range as close to peak torque as possible for power and economy. That's why just about all the time I have the torque up in the 6-7-8 range and the HP in the 2-3 range. With a setting of 2/7 I have really upset a 5 series BMW, brand new RX-8 and many rice rockets on the freeway



As far as high temps are concerned the Navy has always said that even brief excursions into the over 1200 degree area are going to adversely temper pistons, cylinder walls and valve seats as well as subject the exhaust side of the turbo to be more brittle and subject to breaking. There is just a lot of future problems to be had by going into the part liquification temperature range.



You can operate on the street with the setting on 9/9. If you bring on the power a little at a time you can even do it with a stock drive train. If you floor it from a dead stop of course the temps are going to go ballistic in a microsecond and if you have another box ponied up with the CR set up as well as injectors you can go to melt down even quicker. I just don't like going through the entire RPM range in a couple of seconds and try to power shift the 6 speed up a gear. What's nice about the box is that the brute force horsepower-torque more than makes up for the lack of shift ability of the manual transmission



Finally I never said that anybody was blowing smoke about high temps. One thing you have to keep in mind is that type K thermocouples loose accuracy in the above 1000 degree temp area. I just can't see those super high temps being accurate. You can push 1300 and tread near the 1400 range but above that with stock components (for the most part) is about it before something gets upset big time.



Jeff