jlbayes
New member
- Joined
- Mar 15, 2011
- Messages
- 2,399
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.
What was the max rpm they were pulling to 2800, t3 is def better at that rpm range.
How much does your truck weigh? 5500? 6000?
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
I'm curious about this. The numbers are too close to my junk truck without an SXE
Alpha Beta Test Monkey
Guang-Zoo Turbo Systems
Using the 114mph the calculator here says 537hp, pretty close to your best dyno run.
5340 with me sitting in it
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!
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