Max Effort Tuning LB7 vs LLY
- Thread starter diesel53
- Start date
I would say rods on either LB7 or LLY are the limiting factor... At max effort your on borrowed time with both engines.
I think people are still scared from when efi live tuning was still in its infancy and it was common to see a 520 hp dmax throw rods...tuning has come a long way and I would be willing to bet just about anything that you will not see any 520-550 horse truck throwing rods now days. In all reality you just don't see it anymore. Now it seems trucks running high 11's are the ones bending/throwing rods.
I've made countless 12.0@113 passes at full weight 7000lbs in my truck which equates to 670 wheel horse and have probably 50 750+ horse dyno pulls on my stock engine lly. People don't give stock motors enough credit anymore.
I've made countless 12.0@113 passes at full weight 7000lbs in my truck which equates to 670 wheel horse and have probably 50 750+ horse dyno pulls on my stock engine lly. People don't give stock motors enough credit anymore.
Thanks for the hope mike :angel: i will need it haha.
And I think you are right from what I have seen.
Yep been hanging out at 625 rear wheel for a long time 40k miles and still kicking just fine. stock HG's and bolts too. but thats all going to change now.
Okay I got ya. I think it comes down to which one you like more. They both share a lot parts/tuning. I would give the LB7 the slightest of edge in the power department due to the before mentioned Injector differences...
The only part that confuses me is that air seems to be the limiting factor. So does the lly with the slightly larger vvt flow more air? If so I think there is more power potential.
Im kind of leaning towards the lly for a race truck since mpg sucks compared to my lb7. And i would be less worried about blowing up the lly.
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Fastest full bodied D-max is a Lilly, so eat it
bcdeutch731 C-10 8.810 (10-4-14) @ 158.33 (9-25-14) - 4540 lbs, LLY, T-400, 2x4 - DP
Fastest in an Allison crew cab= LB7 :woott::hug:
Ironically, the end result is the same between every year dmax.
30* timing 3000Us = 500-550rwhp depending on dyno. All the dmax turbines are the same size, LB7 is just smallest inducer with biggest injectors but lower rail pressure.
30* timing 3000Us = 500-550rwhp depending on dyno. All the dmax turbines are the same size, LB7 is just smallest inducer with biggest injectors but lower rail pressure.
That helps, still weird that less air on an lb7 makes the same power. thanks Brian.