Are the guys modifying their 6.7's? I'm sure there are people on here that do it! Let's see what ya got!
That's what I'm saying. My 07 5.9 with just a bullydog, intake, 5" exhaust, and stock turbo went 13.9 on the 37's. The tuning options available for the 5.9 made it easy to build a fast truck. The 4th gens have been out for 2 years now, and there is only 1 truck on a forum with thousands of cummins guys that has broke into the 12's. With a 5.9, it was as easy as a tune, 64mm turbo, and some 90hp nozzles and you were well into the 12's. Also, built transmissions could be made to handle over 600hp for about $3k whereas now it is going to cost no less than $7k or you end up having to take the route that you took and put a different tranny in there.I know one, on Cummins Forum. Also know a guy with 37's on his 4th gen and running high 13's with turbo, stock sticks and CP3.
The MCC software will be out soon for the 6.4Besides EFI-Live, you can do a ton to them! Turbo, injectors, billet rods, cam, head work, main studs, head studs, modified or twin CP3's, 47/48RE swaps or built 68RFE's, intercooler upgrades, water meth, nitrous, etc.
H&S just ran a 9.80 @ 14x in their 6.7 with triples, 4 link, 4R100 and their MCC software. That's not far behind Pro Street 5.9's in RCSB trim.
Sorry to burst bubbles but EFILive is moving to SCI 03-05 trucks instead of working on the 4th gen Cummins. I think they realized the demand for the SCI crowd over the 4th gen.Just wait for EFI-Live buddy =)
It made a world of difference on my truck. The two things 6.7's have going for them is 1) they can spool MUCH larger singles than a 5.9 could dream of and 2) the pistons and head handle head much better, so the issue of melted pistons aren't as prevalent as on the 04.5-07's.
My point exactly!I don't know. I've seen over 1600 degrees probably several hundred times, between drag racing, dyno and tuning. Haven't melted a piston yet. And I know quite a few 6.7's in that same ballpark.
Where I have seen them melt (can think of several off the top of my head) is with a stock turbo and tons of fuel. But data logging my runs at the track, going through the traps I'm about 1800 degrees pre-turbo.