Just Dynoed the TS 6.4 with SCT and MP-8 stacked

new guy here but i have an 08 6.4L with the spartan 275 and i dynoed 510hp and 1050tq with the water meth i dynoes 576hp and 1276tq u should be putting down better numbers with stacked chips imo.
 
travis87 said:
new guy here but i have an 08 6.4L with the spartan 275 and i dynoed 510hp and 1050tq with the water meth i dynoes 576hp and 1276tq u should be putting down better numbers with stacked chips imo.
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Are you still running the dpf? If not that is probably why your numbers are better. They still have to dpf intact.
 
Spartan's 310 tune is something like 550rwhp, while River city has tunes they claim will hit 585, and I believe some have dynoed higher. 600hp on just a tune/exhaust/intake is right at the fingertips...
 
Its all about power under the curve where spartan currently shines, i did however see someone stacked a pressure box with spartan 310, the peak wasnt higher but the curve was smoother ill see if i can find it.



moremph said:
Ok been meaning to do this post for a few weeks now just been on the road racing and aint had time. As many of you know i have been doing some freelance race support for some diffrent teams this summer and one of em happend to be Dr.Performance, In doing so i learned about thier pressure box for the 6.4 diesel and decided to try one on Cassie's 2008 6.4.

Now this is not the standard off the shelf Dr.P pressure box it has been calibrated with a special stack tune specifically for the Spartan Tuner, You must ask for this tune but Kevin at Dr.P will be happy to set the box up for you.

First impressions on street manors the truck fuels much harder down low, driveability increased as well as turbo response down low, smoke did increase across the board.

Attached is the dyno graph of her truck on Dave Dunbars Dyno at the schied event the first two pulls are with the box on at 100% the last pull was with the Dr. performance module off. Now as expected peak hp was affected very little, but where the pressure box really shined was mid range power on the graph around the 2300 rpm mark the box was adding over 100hp to the truck and 150+ lbft of torque which was very impressive to me, I wish we had started the dyno pull a little lower now to see the gains, This is where you drive the truck at every day your cruising rpm and where power is the most important in my opinion. This also looks like a very good power gain for a sled puller someone who is going to be shifting alot of gears.

it was some very intresting results and the dyno sheet doesnt lie, pull 4 was with the box off
Travis
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I've dyno'd with and without the MP8. You need to fine tune it a little(adjust the knob), but it does flatten out the curve and bring the power on quicker. Drivability and throttle response is great. I definitely recommend it for a little adjustability.
 
If you say its cool than it must be good, i thought about getting on and going to the track just to see if the power under the curve helps at all. The throttle response would be cool, just hope it dont melt pistons like a CR
 
Big r power dynoed a 7 something on fuel and 8 some thing on nitrous thats what was on socaps time slip to
 
i will dyno with and w/o mp8...just to see the difference..as well run down the track.
 
dzchey21 said:
If you say its cool than it must be good, i thought about getting on and going to the track just to see if the power under the curve helps at all. The throttle response would be cool, just hope it dont melt pistons like a CR
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No, you won't melt a piston. In the 6.4L, there's a hard limit(a few of them) for rail pressure in the tuning, which we modify. It won't go above that limit.

In a common rail dodge, you can crank the RP as high as you want, but tricking the rail pressure sensor. I've seen rail pressure at 35k with some aggressive boxes, which is way to much for the injector. It's all about finding that balance.

I don't think you'll see much of a change in peak hp or tq, but you can dial in the low end and part throttle pressure for your specific setup. Every truck is a little different, so it's nice to have some adjustability. You can't just crank it all the way up with tuning though, with the changes in the rp in the tuning and the MP8, it's simply too much.
 
I think for sled pulling it might be nice though, just to have a little more grunt off the bottom, but i might be wrong, whats an MP8 go for?
 
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