Sorry to hear that. I wonder if locking out the VCT contributes to the problem
How about upping the idle speed by 50 or so and reflash the tune? Might be worth a try.stlwgn: Not sure, I just know that Doug said he found that the cams w/ phase adapters made the engine run lean and detonate at higher power/RPM's so he is only recommending the lockouts.
I only gained 22 HP. But my biggest concern is the personality change in the car. I and all the shop LOVE the sound and idle, but it is almost impossible to make a smooth/slow start and at 45 MPH in 5th, unless I am accelerating slightly or decelerating the car bucks or "jack-rabbits continuously. Even at freeway speeds of 60-65, I can feel the bucking, it's not as noticeable, but it can be felt.
Yep, exactly. My old Bronco had a high lift lunati cam in it and you could not just let out on the clutch and let it roll without giving it some gas. If you did, you would think it's one of those bounce cars with hydraulics lol.I'm not sure about these cams but my old time experance with High Performance cams is they won't smooth out utill you start getting into there designed rpm range. You could always up the rpms but that just makes it harder to pull out smoothly with a stick. With my old pushrod motors I spent a lot of time with the carbs to get them to run smooth at idle. If you know what to do with a Holley you can do it.
So I would try uping it 50 like Stl said and ever another 50 and try it, it can't heart. and you can alway go back with it. I would also talk to Doug and see what he says.
But thats not good for the drive train.I love that bucking. Reminds me of a thoroughbred trying to get out of the stable. It's great and even better at high RPM's!:gringreen
Why on earth would you be accelerating from 45mph in 5th??????but it is almost impossible to make a smooth/slow start and at 45 MPH in 5th
Why on earth would you be accelerating from 45mph in 5th??????
We are talking about a Mustang here right?:scratchchin
You changed the cam timing and duration dramatically and the exhaust sounds different…….strange.But now for part TWO: I have picked up an almost supercharger whine and the exhaust is DEFINITELY louder at cruise and idle. Did we "burn out the mufflers during the dyno pulls? More air thru the system? What?
It's definitely a learning experance. Like some say the cams are the heart of the engine. So if you change that it will effect it alot.hey there flyboy, a couple of things
there are definitely tradeoffs, when you
go to thumpers or hot rods. i think some
of us want it all, the heavy lope and
perfectly smooth, stocklike driveability.
i have the hot rods and the car is more
cold blooded now, but it's a tradeoff i'm
willing to make.
some of your 5th gear driveability will
get corrected in your tune (i believe), so
hang in there and give the cams time
to grow on you.