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Old 08-28-2013, 02:10 PM
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Dyno results possible?

I have been wanting to c what my truck is pushing and I was a schied this past weekend and decided to let them test it. I have a ts chip that I know nothing about but it is pretty aggressive, 4" straight pipe exhaust, bigboost boost fooler wicked wheel 2 and kn 57 series cold air intake. The peak hp was 330 and peak torque was 963 ft-lbs. Does this seem like a really high tq number? it is nearly 1:3 ratio and i have never heard of that much. I was thinking somewhere in the 600 tq range, The truck has some kick but iv rode in a lot faster ones before and if thats nearly 1000 tq im kind of disapointed. it was a portable mustang dyno. Seem legit or a waste of $80?
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Old 08-28-2013, 07:12 PM
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Both Hp and Trq number seems high (hp not as much)....is there a spike on the dyno graph?

330 is possible on stock sticks and turbo but it requires some real good tuning.

I'd say hp is ballpark, maybe a little high, and trq is questionable (real high)

Was there a correction factor on the machine?
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Old 08-28-2013, 07:44 PM
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Id say hp is really close, but tq is way off. But every dyno will read different. A good way to get a pretty good idea of your numbers though. I bet there were a lot of dodge guys going home with huge heads on the amount of torque they produced....

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Old 08-29-2013, 05:42 AM
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TQ is way high, Hp is about right with the new compressor wheel.

290-300 is about normal for a stock truck with a chip, 310-320 with the new wheel...
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Old 08-29-2013, 06:52 AM
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Quote:
Originally Posted by HVAC SuperTech View Post
I bet there were a lot of dodge guys going home with huge heads on the amount of torque they produced....

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I bet their mirrors were up too
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Old 08-29-2013, 07:52 AM
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you get a dyno graph, i can easily tell you if the number are ****ed or not.

also you don't measure hp, you measure torque and calculate HP.
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Old 08-29-2013, 01:03 PM
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the dodges were making less torque than the v8s on that dyno, im trying to upload a pic of the dyno chart there definately was a spike at 62 on the 2nd run, it was throwing down about 650 tq from 56-61 and from 63-77mph. i dont know on the correction factor... I feel like the accuracy would go way up on a flywheel dyno since there is a whoping 4 speeds in the trans! STUPID!!! I wish allison made a bolt in 6 speed for the 7.3 they would have sold a few million of them. btw whats the stock hp and tq from a 7.3?
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Old 08-29-2013, 01:11 PM
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second dyno run chart
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Old 08-29-2013, 01:22 PM
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i wouldn't have bought a crappy Allison. they may be sweet cause of the name, but the duramaxes cant do more than a tuner and its already way past what the Allison can hold.
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Old 08-29-2013, 01:58 PM
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the 4r100 is far from being performance ready, my ts tore the original trans out in a very short time. Think of how many reman 4r100s ford sold, if i was in the market for a new auto trans I would definately go allison especially if that ment getting 6 speeds, these things are worthless in a heavy towing situation as far as accelerating, at a crusing speed of 60 mph i have no complaint, but when i haul hay im scared somethings going to snap when it shifts because it jerks so hard since the rpm changes so much. Our work trucks are chevy 6.0s and they accelerate under load just as good if not better than my truck just because of 6 gears. Why do you think most semis have 13 speeds? I have also towed with a duramax and by far superior to my truck ONLY because how smooth and esay it takes off it is just geared better. I have been seriously checking into a zf6 swap but college takes all my money right now.
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