HP and TQ numbers

[bluestang98]

I have an f-150 with basically a lightning drivetrain and many extras. My question is why is it that I see other lightnings not as modified as mine put down tq numbers not that far from me. I am still running the stock eaton blower but it has been ported to a stage 4 steiggy. Is the blower limiting my torque numbers? Dyno numbers 495 rwhp 518 rwtq. Thanks.

[Rich@MD]

Originally Posted by bluestang98

I have an f-150 with basically a lightning drivetrain and many extras. My question is why is it that I see other lightnings not as modified as mine put down tq numbers not that far from me. I am still running the stock eaton blower but it has been ported to a stage 4 steiggy. Is the blower limiting my torque numbers? Dyno numbers 495 rwhp 518 rwtq. Thanks.

Do you have bigger rims/tires? Who tuned your truck vs. who tuned "other" like lightnings....

If you can list your mods to your truck that would be a good start.

There are a TON of things that can effect with dyno #'s you see. Different types of dyno's, anything from the tune, to plugs, plug-gap, how everything was installed, leaks, port/no porting/was it done correctly, engine internals(good compression...etc).... 100's of variables.

Post up some details and we'll take a look.

[kdanner]

A lot of idiots dyno them with the converter unlocked, thus showing torque multiplication from the converter. If they have torque like you do with significantly less horsepower than you, this is a good indicator that this is happening. They will swear up and down that they are right and you are wrong. But this is typical, most Lightning owners are lemmings that just swallow BS spewed from ilk such as JDM.

[bluestang98]

5.4L Sohc engine
Manley internals
Bored .030 over with 8.9-9.0 compression
Crower Stage 3 blower cams
stage 4 steiggy port lower intake port matched to heads
Race port heads with oversized stainless valves
Bassani equal length headers
high flow cats
Magnaflow Magnapacks dumped
2600-2800 stall converter
built 4r100 with upgraded valve body and accumulators
aluminum driveshaft
9.75 rear end with 3.73s and locker.
18 inch roush wheels
6lb lower pulley, ? on the upper, 2.9 if I recall
42lb injectors
water pump driven fan
accufab single blade t-body
CAI
15lbs of boost

I think that is about it. I am not for sure about the converter being locked, but I know that when he tuned my car he had the converter unlocked. How huge of a difference would that have made just by looking at the numbers if it were unlocked on the truck? The truck is an F-150 extended cab. Thanks for the help.