6.7 power stroke versus duramax

superstroked90 · Sep 12, 2015

So raced against a 04 duramax 4 door 4 wheel drive like mine. He has a built trans and lift pump and turbo. Dyno made 540hp.
I have 64mm street max , s&b intake. 4 " downpipe and Morgans tunes.
We did a boosted launch at 30mph, I held him for first bit, but on the top end he pasted me... And he didn't just creep by either

Was hoping it would be closer . any thoughts ?

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dsmracing1 · Sep 12, 2015

pretty big weight advantage in favour for the DMAX... Ford's are Fat lol

johnp115 · Sep 12, 2015

What size turbo is he running. ^^^^^ as said above, they're significantly lighter.

Six_Sloww · Sep 12, 2015

Hpfp limitations, you're out of fuel

Weight advantage doesn't help

superstroked90 · Sep 12, 2015

I am don't know for sure what size it is, thinking its smaller than s366
Yea i guess I need to get stroked 15 pump and go for more HP ... Ha, there is know end to it lol

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ramonpowerstroker · Sep 12, 2015

Fuel is your limitation, bet if I would have ran him In my 2015 it would have been a different story lol

sledhead_24_7 · Sep 12, 2015

Plus, most of us may not want to admit, but the duramax is fast anyway, plus added power.

04redcrew · Sep 12, 2015

its like driving a tank vs a smart car lol jk not that big of a weight difference but there is a decent weight ratio

co04cobra · Sep 12, 2015

Similar power and you're at close to a 1500lb weight disadvantage.

Smart car VS Tank is a good comparison.

superstroked90 · Sep 12, 2015

Yea I think power levels are similar. .

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Coolbeans · Sep 12, 2015

The weight advantage as they say and also the duramax likely has 3:73's while you are likely 3:55. Not a game changer but it helps. Damn I wish ford would give us a better gear ratio from factory.

jcain · Sep 12, 2015

Our trans gearing offsets the rear gear difference.

They do weigh about a 1000lbs less.

Their cp3 has more Ass than our cp4.

Their tuning is far superior at this point.

Six_Sloww · Sep 12, 2015

Yep, it's just time for more upgrades lol.

TyCorr · Sep 12, 2015

Ive had duramaxes and I hate that their 15 year old tech is still relevant because the trucks weigh as much as a grand am

bigrpowr · Sep 13, 2015

intake upgrade couldnt hurt. your weight is definitely hurting you .

jcain · Sep 13, 2015

TyCorr said:
Ive had duramaxes and I hate that their 15 year old tech is still relevant because the trucks weigh as much as a grand am

You're kidding, right?

co04cobra · Sep 13, 2015

jcain said:
You're kidding, right?

No, he's serious. Smart car and grand am both good comparisons.

jcain · Sep 13, 2015

co04cobra said:
No, he's serious. Smart car and grand am both good comparisons.

Show me which smart car or grand am weighs anywhere near 6500lbs+.

dseitler · Sep 13, 2015

Don't feel bad at all. We have been building a LB7 which I am assuming he had. The truck was built with a Non-VGT Turbo with no ECM limitation and with a few hundred dollar bag of parts kit can dump massive amounts of fuel in that motor. He had at least a 1800 lb weight advantage on you and the LB7 lives for high RPM. He has the best piston rod combo that everyone is looking for. Also by building the Allison he took care of his biggest problem. Get with Mike and with a few adjustments you can have him scratching his head wondering what the Hell just happened.

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