Throttle response?!?!

[RobbyMartin]

Originally Posted by 88Racing

Yes good answer!
Forgot about that one!
Also check the fuel pressure regulator and pressure at the fuel rail.
Being you own a 97-03 you have a cable TB and when I had mine I never had any lag.

Lars

I forgot to mention that I replaced the fuel filter as well and that didn't cure the problem.
A few years ago I replaced the fuel pump and that didn't change anything either but what I did notice was the fuel gauge reading would change. I used to get about 200 miles or more at half tank and now I'm lucky to get 175. At empty, i am lucky to get 290-300 when i used to get 325-335. What could be the problem?

As far as the Gryphon, I use my truck as a daily driver and I want throttle response and fuel economy. I rarely tow but if I do it's about 2500 lbs. or less. I never have a need to race it since its lifted with 35" tires. With that being said, what tunes should be purchased with a Gryphon?

[Jackpine]

You probably need only the 87 octane performance/economy tune. You've pretty much defined what you're looking for in the tune with your post. It's probably pretty close to what I asked for: Good highway passing performance and any improvement possible on gas mileage.

However, since you've got the big tires, you've effectively reduced your gear ratio. I wonder if Bill could write a custom tow tune that would help you even when you're towing THOSE loads? Since tunes are only $30, seems like maybe a reasonable question to ask him.

- Jack

[88Racing]

Originally Posted by RobbyMartin

I forgot to mention that I replaced the fuel filter as well and that didn't cure the problem.
A few years ago I replaced the fuel pump and that didn't change anything either but what I did notice was the fuel gauge reading would change. I used to get about 200 miles or more at half tank and now I'm lucky to get 175. At empty, i am lucky to get 290-300 when i used to get 325-335. What could be the problem?

As far as the Gryphon, I use my truck as a daily driver and I want throttle response and fuel economy. I rarely tow but if I do it's about 2500 lbs. or less. I never have a need to race it since its lifted with 35" tires. With that being said, what tunes should be purchased with a Gryphon?

When you lifted the truck and put the big rubbers on is that when you noticed the decrease in mpg's?
Big tires=-mpgs
Regearing can get some of the mpgs back, but not all of them.
What the gearing on the truck now?
And definately a custom tune will help.

Lars

[RobbyMartin]

Originally Posted by 88Racing

When you lifted the truck and put the big rubbers on is that when you noticed the decrease in mpg's?
Big tires=-mpgs
Regearing can get some of the mpgs back, but not all of them.
What the gearing on the truck now?
And definately a custom tune will help.

Lars

Lars,
I have 4.56 gears in the truck now and I recovered a little mileage but it seems as though I am losing more miles to the tank since I replaced the fuel pump.

I have the Hypertech PP III that has taken the tire size and gears into account to adjust the speedo. I have noticed the difference with and without the programmer but from what I'm hearing, the Hypertech can't even touch the coat tails of the Gryphon.

Should I use the canned tunes or what other tunes should I get?

[Jackpine]

Originally Posted by RobbyMartin

Lars,
I have 4.56 gears in the truck now and I recovered a little mileage but it seems as though I am losing more miles to the tank since I replaced the fuel pump.

I have the Hypertech PP III that has taken the tire size and gears into account to adjust the speedo. I have noticed the difference with and without the programmer but from what I'm hearing, the Hypertech can't even touch the coat tails of the Gryphon.

Should I use the canned tunes or what other tunes should I get?

I'm not Lars, but I take back what I said about the tow tune. The gearing you've got on your truck has made towing your loads easy, even with the big tires.

I think all you need is an 87 performance/economy tune. I think you'll probably see better mileage and performance compared to the Hypertech.

- Jack

[fordkindaguy]

sooo did taking the hypertech off do anything lol, i didnt see if you did or didnt

[88Racing]

Originally Posted by fordkindaguy

sooo did taking the hypertech off do anything lol, i didnt see if you did or didnt

We will need to know this also!

Thanx

Lars

[RobbyMartin]

Originally Posted by fordkindaguy

sooo did taking the hypertech off do anything lol, i didnt see if you did or didnt

I hope this will give us all an answer...About 4 weeks back I took the battery out for well over an hour to have it tested because I was having a different issue and I re-installed a new one. Being that the battery was out for over an hour, wouldn't that reset the computer and put the Hypertech tune back to stock? If yes, then the truck still had the lag/pause issue. If not, then I have to literally remove the tune and give it a shot. I guess it wouldn't hurt to try it anyway but the Hypertech takes an eternity to program.

How long does it take to re-program with the Gryphon?

[88Racing]

Originally Posted by RobbyMartin

I hope this will give us all an answer...About 4 weeks back I took the battery out for well over an hour to have it tested because I was having a different issue and I re-installed a new one. Being that the battery was out for over an hour, wouldn't that reset the computer and put the Hypertech tune back to stock? If not, then I have to literally remove the tune and give it a shot. I guess it wouldn't hurt to try it anyway but the Hypertech takes an eternity to program. How long does it take to re-program with the Gryphon?

Ok
From my understanding of tuners/programmers is this.
Once the pcm is flashed with a new tune it cannot be removed unless reflashed.
I assume the Hypertech has the same proceedure as the gryphon.
So by removing the battery, the pcm's memory has not been altered due to the pcm's flash memory.
However the Keep Alive Memory resets and sends a p1000 code and the only way to get rid of this is by the drive cycle reset. This takes 50-100 miles.

The gryphon only takes about 5-10 min to program initially for canned tunes with custom options. The canned tunes are kinda similar to the hypertech tunes, they fit a lot of trucks. But when you get one with custom tunes only about 2 minutes.
Custom tunes are for you and your truck only. They don't work on other trucks that are the same as yours.

Lars

[88Racing]

Read this also:
http://dygytalworld.ehost-services13...read.php?t=288

Lars