Originally Posted by Deejay
Originally Posted by docock

This is the dyno trace done today on my 2013 Duratec Plus 4 which has had the Williams remap.

What is interesting is that as the engine bay warmed up the BHP fell dramatically. At the third run it had dropped to 136 BHP from 145.

BHP pretty much the same as standard (don't know what it was before remap;10 years wear and tear on engine etc) however post remap the torque curve is pretty flat with only marginal dipping at 2500 - 3250.

What is interesting is that as the engine bay warmed up the BHP fell dramatically. At the third run it had dropped to 136 BHP from 145.

Def going for a short air intake now on the inlet side.

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Thanks for posting that. Also await with baited breath what Monty will put out when all mods are complete.
Interestingly with yours, the 145 is, as you say much the same as standard. I also had the Williams remap a few years back and to be honest, did not feel the difference to any great degree when on the road. Maybe, a little more zip above 4k but hard to remember what it was like before.
Be interesting to hear what you think over the next few drives.


So far the remap has done exactly as I hoped. Much more responsive and and over 3500 it really flies. My main concern with the remap, is the tendency to inadvertently exceed the speed limit especially on Motorways.

I wrapped the manifold last night with a reflective header manifold blanket from Funk Motorsport. After a long spirited drive, I was pleasantly surprised that the first time ever that noticeably cold air was blown into the cabin when the fan was switched on and not somewhere between warm and hot as previously. Hopefully with this and a short air intake the "lost" Bhp will be recovered.

For interest and comparison with my Williams remap, wolf sent me this a few years ago. The accompanying comments were:

"The remap for the Duratec helps to improve overall drivability and is very much designed for the road and helps to improve torque and power. It improves est. 8 bhp and about est. 7 lbs ft but it all depends on your engine and what you “starting” power results are and whether you have the leads, plugs and air filter as these make a difference."

[Linked Image][quote=Deejay][quote=docock]