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Dyno Forum Discuss Dyno Tuning, and Post those Graphs Here!

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Old 08-10-2016, 08:58 AM   #21
jlbayes
 
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Quote:
Originally Posted by jasonc View Post
What was the max rpm they were pulling to 2800, t3 is def better at that rpm range.
3200 but was falling off well before that.
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Old 08-10-2016, 01:17 PM   #22
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I need to make the power in the upper rpm ranges for sure, because the tallest slick I can get for my 17inch wheels is only 28 inches. So I'm already around 3200 RPM when I cross the line.
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Old 08-10-2016, 03:08 PM   #23
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You need a cam and ported head....
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Old 08-10-2016, 03:35 PM   #24
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How much does your truck weigh? 5500? 6000?
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Old 08-10-2016, 03:58 PM   #25
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How much does your truck weigh? 5500? 6000?
5340 with me sitting in it
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15 CCSB 20x12s, leveled, EZLYNK, deleted
03 RCSB 1500 12 valve 215 pump, built 47re, 5x18s, 4k gsk, sxe369, Fass 240, 7mm delivery valves, 11.71
08 RCSB 1500 06 CR swapped, built 48re, Sxe369, 3pc manifold, 50% overs, 10mm Cp3
99 ECSB Nv5600, powered by 6.7L CR
 
Old 08-10-2016, 04:00 PM   #26
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Quote:
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You need a cam and ported head....
I'm not opposed to it. I wonder how much power this 369 would make on a stock fueled 6.7 CR
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15 CCSB 20x12s, leveled, EZLYNK, deleted
03 RCSB 1500 12 valve 215 pump, built 47re, 5x18s, 4k gsk, sxe369, Fass 240, 7mm delivery valves, 11.71
08 RCSB 1500 06 CR swapped, built 48re, Sxe369, 3pc manifold, 50% overs, 10mm Cp3
99 ECSB Nv5600, powered by 6.7L CR
 
Old 08-10-2016, 04:21 PM   #27
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I'm curious about this. The numbers are too close to my junk truck without an SXE

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Old 08-10-2016, 04:30 PM   #28
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Quote:
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I'm not opposed to it. I wonder how much power this 369 would make on a stock fueled 6.7 CR
I'm pretty sure the most people are making right now with stock fueling is in the ~535hp range (backed up by track times).
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Old 08-10-2016, 04:56 PM   #29
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I'm curious about this. The numbers are too close to my junk truck without an SXE

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Details? I'm curious. I feel my truck makes more than what it showed. It runs extremely well... 11.82 is on a terrible 60ft and I don't lock up in second. Maybe I should dyno it somewhere else?
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15 CCSB 20x12s, leveled, EZLYNK, deleted
03 RCSB 1500 12 valve 215 pump, built 47re, 5x18s, 4k gsk, sxe369, Fass 240, 7mm delivery valves, 11.71
08 RCSB 1500 06 CR swapped, built 48re, Sxe369, 3pc manifold, 50% overs, 10mm Cp3
99 ECSB Nv5600, powered by 6.7L CR
 
Old 08-10-2016, 05:39 PM   #30
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Using the 114mph the calculator here says 537hp, pretty close to your best dyno run.
 
Old 08-10-2016, 05:49 PM   #31
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Quote:
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Using the 114mph the calculator here says 537hp, pretty close to your best dyno run.
Yeah trap speed said about 600.

Here's a completely stock fuel tuned 4th gen with a sxe369 T4 .91 with a g56. He never went above 2700ish rpm since it was at 45psi in no time and he has stock studs still...

https://www.youtube.com/watch?v=z7wREMEWs1o
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Old 08-10-2016, 05:54 PM   #32
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Honestly don't make any changes til you get a DP gauge. That'll show if its restricted on the manifold or if fueling is suffering.
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EFI by ATP in Idaho, s364.5sxe/FI ETR s488 with V2 cover, s&s 135% overs, Hamilton springs/ pushrods and 188/220, suncoast Comp68 getting it all to the ground.

2014 BMW X6 ///M factory 560hp twin turbo AWD
 
Old 08-10-2016, 06:17 PM   #33
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Dynoed Sxe369 Yesterday!

Were you able to make changes in the dyno try running with. Several different timing values. Record results. Then run what runs best. Repeat with timing. Fuel delivery and injectors
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Old 08-11-2016, 12:08 AM   #34
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This is a long video of a dyno session we did with a customer and his 06' 5.9 Mega Cab with 100% stock truck other than 369sxe w/.80ar wastegated T3 housing, Hardway tuning, and a PDD 850HP 48re transmission.

The short version, it did 537HP on it's best run. That's uncorrected raw HP, with the typical altitude correction the weather station calls for in Feburary when these runs were made, about 16%, it would be about 620 HP. We know correction factors are too high for boosted applications, but somewhere between 5% and 10% correction is what most trucks actually put down at the track vs. our uncorrected numbers.

Skip to 8:30 in the video for the first dyno pull.

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Old 08-11-2016, 12:17 AM   #35
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Quote:
Originally Posted by maxwedgehead View Post
5340 with me sitting in it
Quote:
Originally Posted by jasonc View Post
Using the 114mph the calculator here says 537hp, pretty close to your best dyno run.
It looks like the dyno jet numbers were pretty close to your track numbers, despite the 7% correction factor (SAE 1.07).

On pretty much every stock headed 12v cummins we've ran, the earlier we can make it come up to full boost, the better the power numbers. I'll bet if you would have ridden the brakes for a bit at 2000 RPM, built about 30 psi against the brakes, then released brakes and floored it around 2200 rpm, you would have made peak power closer to 3k RPM and probably picked up 25 to 30 more HP.

With the track average calculating to 537 HP, your peak power is probably close to 550 HP and your average power through the RPM window you run at the track ends up right at that 537 calculated number.

This is good news! It means it's got a ton more left in it with that turbo combination. First step is to lock the converter in 2nd gear so you have consistent back to back testing parameters. Then while at the track, make tuning changes and see if MPH improves, even if you get a bad launch that spins, MPH is generally consistent and a good indicator of power put to the track.

The first thing I'd try on your truck is more timing, bump it up 2 to 4 degrees and see if it picks up MPH!
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Old 08-11-2016, 11:35 PM   #36
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Originally Posted by Big Blue24 View Post
It looks like the dyno jet numbers were pretty close to your track numbers, despite the 7% correction factor (SAE 1.07).

On pretty much every stock headed 12v cummins we've ran, the earlier we can make it come up to full boost, the better the power numbers. I'll bet if you would have ridden the brakes for a bit at 2000 RPM, built about 30 psi against the brakes, then released brakes and floored it around 2200 rpm, you would have made peak power closer to 3k RPM and probably picked up 25 to 30 more HP.

With the track average calculating to 537 HP, your peak power is probably close to 550 HP and your average power through the RPM window you run at the track ends up right at that 537 calculated number.

This is good news! It means it's got a ton more left in it with that turbo combination. First step is to lock the converter in 2nd gear so you have consistent back to back testing parameters. Then while at the track, make tuning changes and see if MPH improves, even if you get a bad launch that spins, MPH is generally consistent and a good indicator of power put to the track.

The first thing I'd try on your truck is more timing, bump it up 2 to 4 degrees and see if it picks up MPH!
Interesting, thanks for that good info! I wish I would have known that. I talked myself into to it and will be removing the 12 valve and putting a 6.7 in my truck and I will retain the sxe369, will also modify trans while out for second gear lockup
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15 CCSB 20x12s, leveled, EZLYNK, deleted
03 RCSB 1500 12 valve 215 pump, built 47re, 5x18s, 4k gsk, sxe369, Fass 240, 7mm delivery valves, 11.71
08 RCSB 1500 06 CR swapped, built 48re, Sxe369, 3pc manifold, 50% overs, 10mm Cp3
99 ECSB Nv5600, powered by 6.7L CR
 
Old 08-11-2016, 11:42 PM   #37
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Interesting, thanks for that good info! I wish I would have known that. I talked myself into to it and will be removing the 12 valve and putting a 6.7 in my truck and I will retain the sxe369, will also modify trans while out for second gear lockup
Well.... that solves that.
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EFI by ATP in Idaho, s364.5sxe/FI ETR s488 with V2 cover, s&s 135% overs, Hamilton springs/ pushrods and 188/220, suncoast Comp68 getting it all to the ground.

2014 BMW X6 ///M factory 560hp twin turbo AWD
 
Old 08-12-2016, 12:35 AM   #38
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I know, honestly the 12 valve was a good idea and I'm glad I got to play with one for over a year, but I think it's time to get back to the electronic motors that I'm used to and prefer. May tweak the pump and timing a little bit more and go to the strip one more time on it and see what happens
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15 CCSB 20x12s, leveled, EZLYNK, deleted
03 RCSB 1500 12 valve 215 pump, built 47re, 5x18s, 4k gsk, sxe369, Fass 240, 7mm delivery valves, 11.71
08 RCSB 1500 06 CR swapped, built 48re, Sxe369, 3pc manifold, 50% overs, 10mm Cp3
99 ECSB Nv5600, powered by 6.7L CR
 
Old 08-22-2016, 12:31 AM   #39
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I would have thought that combo would be for 600-650 plus
 
Old 08-22-2016, 11:25 AM   #40
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I thought the same, some 5x18s should be here this week, going to give it a second chance. If it will go 11.50 something next time I go to the track, I won't swap it to a 6.7.
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15 CCSB 20x12s, leveled, EZLYNK, deleted
03 RCSB 1500 12 valve 215 pump, built 47re, 5x18s, 4k gsk, sxe369, Fass 240, 7mm delivery valves, 11.71
08 RCSB 1500 06 CR swapped, built 48re, Sxe369, 3pc manifold, 50% overs, 10mm Cp3
99 ECSB Nv5600, powered by 6.7L CR
 
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