Topic: Dyno before exhaust + wester's "ss" tune and after

[Kelu]

Some months ago I went to dyno and pulled 2 runs with a result of 235hp (176.3KW) and 386Nm (284 lbs-ft) this result:
[attachment=1]

I did a run with AFR and boost, but because I had the stock exhaust I don't know if the AFR was concluded.
[attachment=2]

The dyno was a mustang, no fan !!!, around 30 degrees Celsius (86F) and no compensations.
At that time I had only Dejon IC, custom made throttle body elbow and Wester's Tune.

In this weekend went again on the same dyno, and around 22 degrees Celsius (71F) and a small pretty strong fan but still I rated not enough for real air flow.
To my car a Solo catless downpipe, mach exhaust and the tune was updated to latest public version of Wester's tune.
I didn't received the files yet but I have a picture and some videos.
The results are: 253hp (189KW) with 418 Nm (308 lbs-ft)
The difference speaks but don't forget about the dyno situation: 17hp and 24lbs-ft
[attachment=3]


http://www.vimeo.com/7283485

This is a pretty conservative dyno, a base car probably will not go above 220 hp, maybe less and judging based on that, I'm pretty happy about the results. I didn't do more runs because I don't very happy about that fan.

I did also a 1/4 mile simulation drag race and the result came very close of my personal best E/T from drag strip.
On drag strip: 13.30s
On dyno: 13.37s

[kennysabarese]

Always nice to see dyno results. Seems like a nice gain to me.

[LatinVenom]

The gain is what matters and basically it shows how the tuner took advantage of the improvements to the exhaust.

[lil goat]

Very nice gains for an already tuned car, keep the master busy he just updated my catless tune, it really helped down low, worked so much better on the auto x course last weekend.

[Kelu]

Sorry guys, "official mail" still didn't arrived from the dyno.
Lil goat: what are you saying there? You are working on a newer version of the SS Tune?
I have some logs (not with HPT) do you think should I sent them to Lyndon? Or let him alone to do other more important things?

[Kelu]

Updated first post with the files from the dyno.

Guys, maybe I did a mistake but I want to check with you. Converting kW to Hp I know I have to multiply kW by 1.36 to get Hp. Google and some other internet pages show I have to  multiply by 1.34:
http://www.google.com/search?hl=en&q=1+kW+to+hp&sourceid=navclient-ff&rlz=1B3GGGL_enRO308RO308&ie=UTF-8

I might be wrong and stated bigger values for Hp on my first post but I'm pretty confident I'm right, I can't convince the differences of the conversion, I think is related to mechanical horsepower but I couldn't clear myself up.

[baconbits]

1 horsepower = 745.699872 watts... (1 / 745.699872) * 1 000 = 1.34102209...

[Wester's Garage]

Looks about right on with our dyno, too !

[Kelu]

1 horsepower = 745.699872 watts... (1 / 745.699872) * 1 000 = 1.34102209...

I have updated the values in first topic, the difference remains same

Wester's Garage: I'm not aiming high numbers, I was always annoyed by the 240 whp showed by DynoJet on stock cars, that would mean only a 10% loss on drivetrain which I consider it too low. I'm glad I have same numbers as your dyno and same with the numbers showed by the conservative dyno when the guys did the dyno day.

[Kelu]

1 horsepower = 745.699872 watts... (1 / 745.699872) * 1 000 = 1.34102209...

British System:- 746W = 1 H.P.
1000W (1 kW) = (1000 / 746) H.P. = 1.34 H.P.

Metric System:- 735.5W = 1 H.P.
1000W (1kW) = (1000/735.5) H.P. = 1.36 H.P.

Both we were right