69redmach1

Hi guys, I'm new to this forum. I purchased my truck last week, it has about 250 miles on it. It's a SCREW Lauriat 4x4 with 3.55 gears. Without going into any details I own a Dynojet Chassis dyno at my shop. I decided to put my truck on the rollers today just to see how it would do stock with 87 octane. This is a third gear pull so I could stay off that speed limiter. Enjoy.
Pete

Deerhunter4

Nice. Those are some good numbers.

pfbz

Corrected or raw numbers?

GRWolverineFan

If I am not mistaken it says CF:SAE in the top right corner so my guess is those are corrected.

ajrothm

Thanks for posting....

Good "HONEST" numbers..... aside from all the Magazine BS or Ford BS...

HP holds on longer up top then a lot of other reports....good to see.

Do you think it would have made more power in 4th (ie. 1-1) ? I am sure any difference would have been marginal at best...

Did you wideband it as well? I am curious to see the AFR with the stock Ford tuning.... I am sure its quite rich...

11screw50

I dont believe 4th is a 1:1 either.

69redmach1

The lower section of the graph is the a/f. The reference line is at 13:1. The a/f is actually pretty good, just above 12:1 at the top, I've seen worse. We did a 4th gear pull up to the speed limiter and there was only about 5hp difference. It would have surpassed 300 anyway. I've got the 20" wheels as well which is a little more rotating weight which will affect the numbers.

ajrothm

Lol...my phone must have cut the bottom of the chart off because I damn sure didn't see the afr graph.....the fuel tuning looks pretty damn good for stock...you could probably pull some fuel a gain a few hp on the dyno but it will likely run more mph with the afr in the 12s as it sits... Probably could use some timing though if you wanna run 93. Still damn good numbers for bone stock.....full bolt ons and headers would be 350rwhp no problem...

jonbar87

Thanks for the graph! Very nice power curve. Anyone else dyno'd their 5.0L yet? I hate how the ecoboost get's all the attention and everyone leaves the 5.0 out of the picture...

I plan on dynoing mine in the near future and will post results.

NOLAGT

Here is mine before the roush blower and after. Before was in 3rd after was in 3rd as well since roush keeps the 95 spd limit in there craptastic tune. I will be getting a better tune once my Itsx acts right and shoot for 500rwhp and some better tq.

12 fx4 screw with 20's and 3.73.

also the gear ratios are:

1st: 4.17:1
2nd: 2.34:1
3rd: 1.52:1
4th: 1.14:1
5th: .86:1
6th: .69:1