6.4 Tune Results

baderic03 · Jun 18, 2012

If anyone local to me and whants to put there truck on the dyno we can do back to back hits and get some numbers on all the tunes

and i have dyno alot of trucks and 6.4s with inovative,vivian looney tunes,H&S,Spartan,Gearhead and i cant belive the feed back i get from transmission drivabilty with Matts tunes I have also got good feed back froom Vivians tunes

3brorce · Aug 13, 2012

Have any new numbers for these tunes or havent they been dynoed again?

Derek@Vision Diesel · Aug 14, 2012

I dyno'd Race at 569 and ran a 13.3 at 101 on a 100* day, 60psi in my stock BALD tires.

No puking and its been ran VERY hard

3brorce · Aug 14, 2012

Derek@Vision Diesel said:
I dyno'd Race at 569 and ran a 13.3 at 101 on a 100* day, 60psi in my stock BALD tires.

No puking and its been ran VERY hard

Nice to know. How is the trans holding?

jdgleason · Aug 14, 2012

I have been running the gearhead race tune in my truck, and I love it! I did a write up on it a couple weeks ago.

http://powerstrokearmy.com/forums/showthread.php?t=20789

Derek@Vision Diesel · Aug 14, 2012

3brorce said:
Nice to know. How is the trans holding?

Shifts like a dream. The only thing that is hard to get used to after owning a BTS in my 7.3 is the learning process.

I drive it easy most of the time and if I just random stab it, it will slam and shift funny. Then its fine

OUTLAW_6.4 · Nov 15, 2012

Any new updates?

Gearhead · Jan 8, 2013

Digging up an old thread, but has anyone dynoed lately with the latest tunes?

OUTLAW_6.4 · Jan 8, 2013

Gearhead said:
Digging up an old thread, but has anyone dynoed lately with the latest tunes?

I think last night I saw someone say they put down 618hp in TN on a DynoJet on the race tune with just Intake, tune, and 5"

I plan to dyno mine after the egr, elbow, and cac on hot st. Will post it up. Hope to have traction bars by then but shifts are good 90% of the time.

The pedal seems very touchy!:swordfight:

6.4psd916 · Jan 8, 2013

Gearhead said:
Digging up an old thread, but has anyone dynoed lately with the latest tunes?

Have you changed them recently?

Gearhead · Jan 8, 2013

6.4psd916 said:
Have you changed them recently?

Some of the early street tunes only made 40 less hp than the race....lol

OUTLAW_6.4 · Jan 8, 2013

Gearhead said:
Some of the early street tunes only made 40 less hp than the race....lol

Matt is the Street less touchy (pedal wise) then the hot street? Every little bump or anything in gears 1-2 maybe 3 just seems really jumpy or to responsive, with my 7.3 i had to push the pedal 1/2 way down to do anything.

pog · Jan 8, 2013

OUTLAW_6.4 said:
Matt is the Street less touchy (pedal wise) then the hot street? Every little bump or anything in gears 1-2 maybe 3 just seems really jumpy or to responsive, with my 7.3 i had to push the pedal 1/2 way down to do anything.

if you think matts tune are touchy you havent seen anything compared to spartan, kem and erics lol. matts tunes are the best ive ran since stock and now single turbo.

OUTLAW_6.4 · Jan 8, 2013

pog said:
if you think matts tune are touchy you havent seen anything compared to spartan, kem and erics lol. matts tunes are the best ive ran since stock and now single turbo.

I have always like Matts tunes and really have never heard anything bad about them. Smile every time i drive the 6.4, but its really had to even try to drive normal or smooth from 1-3 after that its sweet, the canned SCT tunes seem to just have more power but still drive like stock (not real touchy). the hot st feels like a really touchy race tune, maybe i will try the street and see what happens

Derek@Vision Diesel · Jan 8, 2013

OUTLAW_6.4 said:
I have always like Matts tunes and really have never heard anything bad about them. Smile every time i drive the 6.4, but its really had to even try to drive normal or smooth from 1-3 after that its sweet, the canned SCT tunes seem to just have more power but still drive like stock (not real touchy). the hot st feels like a really touchy race tune, maybe i will try the street and see what happens

Try race

6.4psd916 · Jan 8, 2013

Gearhead said:
Some of the early street tunes only made 40 less hp than the race....lol

Ah, okay. Going to see what kind of milage I can get out of the race. Going to drive about 2000 miles this weekend.

3brorce · Mar 1, 2013

Single Injection??

Gearhead said:
Some of the early street tunes only made 40 less hp than the race....lol

Matt, have you ever thought about building a pure single injection event tune? Or could you even with the 6.4? Be a rattly son of a gun but may see cooler engine temps, egts, coolant temp increase faster, less injector wear, and a slight increase in mileage. Only downside may be increased cylinder pressures I think. May just have to mess with timing to get her to fire off. Possible or no?

Gearhead · Mar 1, 2013

3brorce said:
Matt, have you ever thought about building a pure single injection event tune? Or could you even with the 6.4? Be a rattly son of a gun but may see cooler engine temps, egts, coolant temp increase faster, less injector wear, and a slight increase in mileage. Only downside may be increased cylinder pressures I think. May just have to mess with timing to get her to fire off. Possible or no?

To do it right, there needs to be more parameters that sct gives us... I've done it the wrong way and it really doesn't gain anything other than noise.... my tunes pretty much go to a single injection event at WOT anyway.

3brorce · Mar 1, 2013

Gearhead said:
To do it right, there needs to be more parameters that sct gives us... I've done it the wrong way and it really doesn't gain anything other than noise.... my tunes pretty much go to a single injection event at WOT anyway.

Damn it EFI Live jk. But then with EFI you probably would not have any TCM functionality. H&S have any of those parameters compared to SCT? Just seeing as where in the cummins world they are seeing some improvements in the single event tunes. Ya, I can tell when the pilot shuts off in the tuning now. Thanks