Boost pressure poll

[jbolt]

I'm looking for some feedback form everyone on their average boost pressure at 55mph on the flats in 3rd gear (1:1). I also need the details of your setup as best you know.



1. Boost pressure

2. Load on truck (empty, towing, camper etc. )

3. Full power screw setting

4. AFC control cone setting (min, max, 1/2 turn, etc. ) If modified or after market breifly explain.

5. Smoke screw setting

6. Star wheel setting

7. Injectors

8. Turbo compressor (H1C, HX35 etc. )

9. Turbo exhaust housing (12, 14, 16, etc. )

10. Inter cooled (yes/ no)

11. D or W model

12. Exhaust (stock, aftermarket)

13. RPM @ 55

14. Transmision Type (Std or auto) If auto please specify if stock or upgraded

15. Air filter

16. Rear diff ratio



Thanks,



Jay

 

[formula]

Jay,



1. Boost pressure - about 5 psi

2. Load on truck - empty

3. Full power screw setting - set on "kill" but this setting doesn't matter for light throttle usage

4. AFC control cone setting - original control cone set to deepest profile

5. Smoke screw setting - backed out all the way

6. Star wheel setting - up about 1 turn from bottom

7. Injectors - PODs

8. Turbo compressor - PDR HX35

9. Turbo exhaust housing - wastegated 14cm (too small)

10. Inter cooled - yes, Bank$ intercooler

11. W model

12. Exhaust - straight piped into twin 4" stacks

13. RPM @ 55 - about 2000

14. Transmision Type - DTT auto

15. Air filter - BHAF



A couple of other things to consider about my setup... .



16. 3. 54 gears

17. Max boost is 36psi with wastegate fully opened.

18. EGTs will get out of control on a long WOT run

19. I don't tow very often, but when I do, it's an 8k boat trailer

20. Everything else I forgot...



Any more questions, I'd be happy to answer.

BTW, what are you gathering this information for?



Sean

 

[farmall]

1. Boost pressure: 5-6

2. Load on truck (empty, towing, camper etc. ): empty

3. Full power screw setting: factory

4. AFC control cone setting (min, max, 1/2 turn, etc. ) If modified or after market breifly explain: factory

5. Smoke screw setting: turned in almost all the way

6. Star wheel setting: factory

7. Injectors: factory

8. Turbo compressor (H1C, HX35 etc. ): factory

9. Turbo exhaust housing (12, 14, 16, etc. ): factory 21. 5

10. Inter cooled (yes/ no): yes

11. D or W model: D

12. Exhaust (stock, aftermarket): Custom, no muffler. Staright pipe all the way

13. RPM @ 55: Don't know, no tach

14. Transmision Type (Std or auto) If auto please specify if stock or upgraded: Auto, stock

15. Air filter: factory Purolator replacement

 

[jbolt]

Sean- I'm not exactly sure where I'm going with this. Depends on how much feedback I get. We talk a lot about WOT, max fueling, max boost etc. Thats all fine but thats not where I drive 99% of the time so I want to take a closer look at where I do drive.



I'm hoping to get enough information that all has a common denominator I can put into a spread sheet for comparison.



If I can come up with some extra AFC parts I'm going to make a mock-up to measure the AFC pin travel vs spring, spring preload setting and psi.



Depending on the out come possibly come up with a tuning chart or use the info to tailor a setup to a particular application or collect a lot of useless information about everyones truck just to humor me



Jay

 

[Philip]

1. 4 psi at 60 in OD

2. empty

3. factory

4. set at 75% of depth

5. factory

6. one turn from bottom

7. factory

8. H1C

9. 18cm

10. intercooled

11. W

12. stock

13. no tach

14. auto stock

15. full factory air filter. NAPA filter installed.

16. 3:08's

 

[Midnite]

1. Boost pressure: 7 - 8psi

2. Load on truck: 1200 lb. camper

3. Full power screw setting: turned in all the way up to the shim

4. AFC control cone setting: about 1/2 turn

5. Smoke screw setting: 1 full turn in

6. Star wheel setting: stock

7. Injectors: Bosch 185 (Power Wagons)

8. Turbo compressor: stock H1C

9. Turbo exhaust housing: 16

10. Inter cooled: yes

11. D or W model: W

12. Exhaust: stock, but muffler replaced w/ 3" id. glass pack

13. RPM @ 55: 2000

14. Transmision Type: auto (A518/46RH)

15. Air filter: MHAF

16. Rear Diff Ratio: 3. 54

 

[formula]

Originally posted by jbolt

Sean- I'm not exactly sure where I'm going with this. Depends on how much feedback I get. We talk a lot about WOT, max fueling, max boost etc. Thats all fine but thats not where I drive 99% of the time so I want to take a closer look at where I do drive.



I'm hoping to get enough information that all has a common denominator I can put into a spread sheet for comparison.



If I can come up with some extra AFC parts I'm going to make a mock-up to measure the AFC pin travel vs spring, spring preload setting and psi.



Depending on the out come possibly come up with a tuning chart or use the info to tailor a setup to a particular application or collect a lot of useless information about everyones truck just to humor me



Jay

Jay,



You're up against many varibales. I'm quite interested to see what you come up with. This stuff is fun eh?



Sean

 

[farmerzo]

1. Boost pressure- 2psi

2. Load on truck- empty

3. Full power screw setting - in 4 turns

4. AFC control cone setting- max

5. Smoke screw setting- factory

6. Star wheel setting- turned in all the way

7. Injectors-stock

8. Turbo compressor -H1C

9. Turbo exhaust housing-18

10. Inter cooled- non

11. D or W model -W

12. Exhaust straight pipe

13. RPM @ 55 no tach

14. Transmision Type stock 727

15. Air filter K&N

16. Rear diff ratio 3. 07

 

[JLEONARD]

Jay,

1. Boost pressure 3 to 4

2. Load on truck (empty, towing, camper etc. ) 200# weight for traction), fglass shell,

3. Full power screw setting virgin

4. AFC control cone setting (min, max, 1/2 turn, etc. ) If modified or after market breifly explain. turned CW90 deg

5. Smoke screw setting CW 1/2 turn

6. Star wheel setting CW1/2 turn

7. Injectors Stock

8. Turbo compressor (H1C, HX35 etc. ) H1C

9. Turbo exhaust housing (12, 14, 16, etc. ) 16

10. Inter cooled (yes/ no) NO

11. D or W model D

12. Exhaust (stock, aftermarket) Stock

13. RPM @ 55 1950

14. Transmision Type (Std or auto) If auto please specify if stock or upgraded Std (gutbag)

15. Air filter K&N with opened up airbox

16. Rear diff ratio 3. 54

17. EGT = 500+* F



Add 1 psi, and 75 deg for performance at 70 in 5th gear

Jay

 

[Dfeland]

1. Boost pressure - about 5 psi

2. Load on truck - empty

3. Full power screw setting - to the lock collar

4. AFC control cone setting - original control cone set to deepest profile

5. Smoke screw setting - out about 2 turns

6. Star wheel setting - two turns from the top

7. Injectors - PODs

8. Turbo compressor - PDR HX35

9. Turbo exhaust housing - 16cm

10. Inter cooled - yes

11. W model

12. Exhaust - rip rook 4"

13. RPM @ 55 - no tack yet... .

14. Transmision Type -auto

15. Air filter - k@n

16. 3. 54 gears

17. Max boost is 32psi

18. EGTs max out at 1250@50degrees outside

19. Tow jeep on flatbed as often as possible, Tough to do from middle east right now though.

 

[wxman]

1. Boost pressure - ~ 4 psi (23 psi max)

2. Load on truck - empty (~ 5200 pounds per truck scales)

3. Full power screw setting - ~ 2 turns

4. AFC control cone setting - ~ 90 degree turn

5. Smoke screw setting - turned in nearly all the way

6. Star wheel setting - stock

7. Injectors - PODs

8. Turbo compressor - H1C

9. Turbo exhaust housing - 16

10. Inter cooled - yes

11. D or W model - D

12. Exhaust - aftermarket

13. RPM @ 55 - ~ 1950

14. Transmision Type - stock auto

15. Air filter - K&N

16. Rear diff ratio - 3. 07

 

[JFitzgerald]

Data

1. Boost pressure - 4-1/2 PSI @ 55 mph in 4th gear on flat

2. Load on truck (empty, towing, camper etc. ) - empty

3. Full power screw setting - two turns

4. AFC control cone setting - stock cone, at deepest setting

5. Smoke screw setting - half turn

6. Star wheel setting - two turns

7. Injectors - stock

8. Turbo compressor (H1C, HX35 etc. ) - H1C

9. Turbo exhaust housing (12, 14, 16, etc. ) - 16

10. Inter cooled (yes/ no) - yes

11. D or W model - W

12. Exhaust (stock, aftermarket) straight pipe

13. RPM @ 55 - ?? no tach

14. Transmision Type (Std or auto) - std.

15. Air filter - K & N in stock housing

16. Rear diff ratio - 3. 54



extra stuff

17. timing - ~3/16" between marks

18. EGT @ 55mph in 4th gear - 600

19. EGT @ full throttle in 5th - empty ~1200, with trailer - can push beyond 1250 easily.

20. pull 12,000 lb. trailer regularly

21. max boost - 24 PSI empty

 

[JLEONARD]

JBOLT,

Where are your numbers?

Jay

 

[Case500D]

Here are my numbers

1. Boost pressure - 6 psi @ 55mph, 3rd gear, 4-5 psi @ 55mph in OD

2. Load on truck (empty, towing, camper etc. ) - empty

3. Full power screw setting - stock

4. AFC control cone setting - stock setting

5. Smoke screw setting - three turns in

6. Star wheel setting - stock

7. Injectors - Bosch 185 aka Power Wagons

8. Turbo compressor (H1C, HX35 etc. ) - H1C

9. Turbo exhaust housing (12, 14, 16, etc. ) - 16

10. Inter cooled (yes/ no) - yes

11. D or W model - W

12. Exhaust (stock, aftermarket)mandrel bent 3. 5" straight pipe

13. RPM @ 55 - 2250 rpm 3rd gear, 1725 in OD

14. Transmision Type (Std or auto) - stock auto

15. Air filter - K & N in stock housing

16. Rear diff ratio - 3. 54



extra stuff

17. timing - ~ 1. 45 mm

18. EGT @ 55mph in 3rd gear - 600 *F

19. EGT @ full throttle in OD - empty ~1000*F, with trailer 1050*F

20. I pull up to 16,000 lb. trailer at times, but usually around 12K

21. Max boost - 23 PSI empty, 24 with a full load



Jeremy

 

[paccool]

1)Boost- Less than 2 @ 55MPH

2)Empty

3,4,5,6 -set by shop, not sure where they are at. They are not stock settings

7)PW's

8)H1C

9)exhaust housing-16

10)yes

11)D

12)3"banks Mandrel bent

13)Don't have the tach in yet

14)Auto, some mods such as extra discs in packs, shift kit, pressure turned up a little

15)Smokey BHAF

16)3. 54



Extra

17)pump timing @ 1. 7, TDC pin @ proper location. Was 2. 5 degrees off

18)EGT @ 55-500 degrees

19)Max EGT POST turbo, loaded, 950 degrees

20)Max boost 25 PSI



Stan

 

[Bob Beauchaine]

1. 2-4 PSI

2. Empty

3, 4, 5, & 6. Pump is 230hp "Built"

7. PW (Cummins 185's)

8. Stock ?

9. 14cm wastegated

10. Yes

11. W

12. 3. 5" Custom exhaust

13. 2000

14. NV4500HD

15. Old Smokey BHAF with K&N

16. 3. 54

 

[rlyons]

1. Boost, 2PSI or less

2. About 400 Lbs

3. Against stop collar

4. Max

5. All the way out

6. Appox. two turns from bottom

7. Factory (PWs next week)

8. Factory

9. 16

10. Yes

11. D

12. Jannette Racing team aftermarket

13. 2,000

14. Standard

15. K&N

 

[boatpuller]

1. Boost pressure 4psi

EGT approx 400degrees

2. Load on truck empty

3. Full power screw setting 3/4 turn past lock collar

4. AFC control cone setting (min, max, 1/2 turn, etc. ) If modified or after market breifly explain. MAXIMUM

5. Smoke screw setting backed off all the way

6. Star wheel setting stock

7. Injectors powerwagons

8. Turbo compressor H1C

9. Turbo exhaust housing 16

10. Inter cooled yes

11. D or W model W

12. Exhaust (stock, aftermarket) 3 1/2"B+D

13. RPM @ 55 no tach

14. Transmision Type auto DTT torque converter mod valve body

15. Air filter KN in modified factory airbox

16. Rear diff ratio 3. 54 w/305/70-16s

 

[SnoDawg]

1) 3 psi

2) Empty

3) Stock

4) Stock

5) In 1/2 turn

6) Stock

7) Stock

8) Stock

9) Stock for now

10) Yes

11) W-250

12) Stock for now

13) No tach yet

14) Auto / Stock

15) K&N Stock airbox

16) 3:54



other notes: Hubs locked in, EGT 650 Deg, 55MPH in O/D



There are too many stocks above but I am working on that aspect.

 

[Rick Comenzo]

1)Boost Pressure=12psi 2)Load=empty 3)screw setting=factory 4)AFC setting=factory ,5)smoke screw=2 turns in,6)star wheel=factory,7) POD injectors,8)H1C compressor, 9)12 cm non gated housing, 10)intercooled,11)D350,12)Rip Rook 4 inch exhaust except downpipe13)2000rpm@55 mph. ,14)518 trans ,with trans-go shift kit and deep pan15)K+N 4" inlet with custom inlet pipe,16)3. 54 rear,have banks twin ram intake, 600 degrees EGT no load, 900 degrees with 10K trailer in tow@ 55 mph flat ground in third. Rick.