Boost & EGT readings

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I have been driving "blind" (guage-less) for a while, so I don't know what my baseline boost and EGT were when stock. I installed a TST #6 to take the 160 hp up to 230 hp; then I slid it and the AFC housing all the way forward and spun the star wheel all the way toward the engine. Smoke is not a problem, and is only thick from a standing start with heavy pedal. I rarely go nuts with my right foot, but sometimes a bottleneck in the road before the next stoplight will force me to. Anyway, I figured that I had better get some guages to monitor the engine functions. My questions: After a "temporary" guage installation to make sure it works and before permanent mounting, I'm seeing 4# of boost at 65 mph (1750 rpm in O/D lockup) on flat highway. That seems kind of low to me. Normal or not? Also, I did floor it once just to see if the boost would get higher than the stock 18#-20# and to see what the EGT max would be. The max boost was about 32# and blew the hose off the barbed connector in the manifold. EGT (post-turbo) was never more than 700 degrees F and was usually about 450 to 500 at 65 mph cruise. Is this too cool? Should I worry about guage accuracy? It's a Westach dual unit 0#-30# boost and 400 - 1800 degrees. Any input from Rammers experienced with these things will be greatly appreciated.
Phil

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95 2500 SLT, clubcab, 2wd, longbed, a/t, 3. 54, 129K miles, "all the usual refinements"

 

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#ad
Hey, our trucks are just about twins! Your readings sound just about exacly as mine are. I never heard of anyone being worried about the egt's being too COOL, though #ad
Everything sounds about normal to me. I do hope "the usual refinements" means the cat's gone. If you pull something you will see those egt's climb pretty fast, solo's no problem.

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95 2500 SLT Laramie 3. 54, automatic,Herculiner bed liner, JVC cd out of factory infinity system, southwest grill gaurd (a favorite amongst the deer population), K&N, AFC adjusted, dual straight exhaust out of "gutless" cat, Geno's dual EGT/boost gauge, TST #6 plate slid all the way forward, AFC housing slid all the way forward, silencer ring removed
"Layin' the 'SMOKEDOWN' on their ROOdy Poo CANDY GASSERS!"

[This message has been edited by danandme (edited 07-28-2000). ]

 

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Just got back from a trip to Charleston, SC. The cruise EGT (post-turbo) was around 500 o F at all speeds, about 50-100 more if accelerating to a higher speed. 65 mph boost was 4#. 70 mph boost was 6#. 75 mph boost was 8#. Hard charging saw the boost run up to 32#, but the EGT never exceeded 700 o F. Pretty much the same readings as when I first installed the guage temporarily. I made the same trip last year without benefit of TST mods and got 22 mpg (loaded up full, but not towing anything). This year, I took 300 miles of stop/go/sit side trips in addition to the highway travel. I also put my foot into it a little bit to see how the guages work. All told, the mileage was 20 mpg this trip, so there isn't much of a penalty to pay for the extra power. I think more judicious use of the right pedal would give me the same mileage as stock. How cool is that? BTW, danandme, my cat was replaced with a 3" to 4" reducer and 48" of 4" pipe that runs straight into the muffler.

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95 2500 SLT, clubcab, 2wd, longbed, a/t, 3. 54, 130K miles, "all the usual refinements"

 

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I put in the big TST torque plate (10)? and now have great power and better mileage (gained 2 mpg on average! but still only getting about 15). My boost doesn't go much over 30 ever, I do get smoke at low rpm and foot buried and my Pyrometer reads 750 at 65 mph empty but rarely goes above 1100.

 

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Just a thought which you may be aware of. Post turbo you need to add 300 deg. to your figure if your towing. 950 post relates to 1250 degrees. Just my $. 02 Mike

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92 Std cab. LE. 215 P-pump reman cummins motor. 5-speed, 3. 54, 105 gal Aux tank in bed. Borgeson shaft, Banks Power pack. 12cm Hot end housing w/wastegate. 4" Exh, Pyro & boost guage, oil temp guage. E-brake. Galaxy DX99V, Used as a Hotshot/express Reg. at 36,000 lbs in 48 states. http://hometown. aol.com/hotshothauler/myhomepage/business.html

 

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Well yall got me kinda of worried. My boost/etg reading are:

70mph fairly level road - 6/hi700s-800s
Accelerating moderately -13/1000-1200
I can bust 1000 easily without even trying.

The temps are pre-turbo. I was told not to worry, unless your temps go to 1400.

What do yall think??? These are running empty.

Steve

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Y2K 3500 SLT+,4x2,Black/Camel,leather,LSD,Auto,3. 55,towing,rhino-liner,eagle series 58 alum wheels,JRE 4" exhaust,VA CPC,SPA gauges,Mag-Hytec Trans Cover

98 20. 1'Viper Coral/200 Merc EFI