0-60 times super slow

[PerpetualSeanX]

Forced induction? I'm confused. I see people with 3.73 and 35'' tires doing 7.5's and 8's. Are they all full of it?

I guess what I really mean to say is, I was expecting that my 0-60 time would be better when I put in 4.56 gearing. Instead it literally hasn't changed at all. And to add insult to injury, my millage suffers slightly as well. So, did I waste 1300? What is everyone talking about saying that they get better performance or their low end grunt back by regearing.

Don't get me wrong, my 0-60 time is not really a big deal. It's more just something to help me gauge how my truck is doing power wise and how it stacks up compared to other trucks like and unlike my build.

As it stands, it doesn't seem to stack up well against other like builds, so that makes me think something is wrong.

With my tranny temps siting at 16X degrees and perhaps original spark plugs, and maybe even a torque converter issue, I'm praying that is the issue.

I'll have to respectfully disagree with you at this time that forced induction would be required to get the f150 to the 8's 0-60. Especially considering I've hit 9.1 seconds once.

I appreciate the input, perhaps you could explain to me a bit more on why you feel forced induction would really be needed to get me to where I want my truck to be. Not trying to be a sarcastic jerk, just genuinely curious.

Thanks again for your time and anyone else who may have an idea as to whats going on with my truck.

[PerpetualSeanX]

Also, someone suggest I obtain a datalog from my truck, I assume using my gryphon, insinuating that it may help in diagnosing a potential problem. Does anyone know about that? Perhaps someone could enlighten me on how to get it, how to use it, where to post it, etc...Thanks

[cleatus12r]

This one is based on calculations since I don't (and don't know anyone that does) own an 04-08 F150.

All else being equal, you're looking at an additional 18.5-22 HP above and beyond what you have now just to get into the 8.9xx range. Technically speaking, that means that you have to make more torque at the same RPM range in which you would normally be operating during those 9 seconds. I would say that you'd be VERY hard pressed to get that much power out of simple bolt-on parts. 0-60 times are largely based on how quickly the engine gets to maximum horsepower so things like head porting, cams, etc., aren't going to help you at all in that department. Sure, they MIGHT squeak out a COUPLE extra horsepower, but you won't see that until the 1-2 upshift point.......long past the time that it does any good for your 0-60 times.

[PerpetualSeanX]

Originally Posted by cleatus12r

This one is based on calculations since I don't (and don't know anyone that does) own an 04-08 F150.

All else being equal, you're looking at an additional 18.5-22 HP above and beyond what you have now just to get into the 8.9xx range. Technically speaking, that means that you have to make more torque at the same RPM range in which you would normally be operating during those 9 seconds. I would say that you'd be VERY hard pressed to get that much power out of simple bolt-on parts. 0-60 times are largely based on how quickly the engine gets to maximum horsepower so things like head porting, cams, etc., aren't going to help you at all in that department. Sure, they MIGHT squeak out a COUPLE extra horsepower, but you won't see that until the 1-2 upshift point.......long past the time that it does any good for your 0-60 times.

So, I'm getting that you feel 10 seconds is appropriate. Again, I don't mind 10 seconds, if I had been pulling 11 before the gear change. I'm just confused that there seems to have been no tangible improvement other than that for my engine and transmission wear. That lack of change in time makes me think something is wrong.

So, I'll ask this question directly: Do you feel it is normal to not see an improvement in 0-60 times when someone gears to 4.56 from 3.73 or lower?

[PerpetualSeanX]

I see. Thanks for the write up, longshot. I guess what I'll do since the gears are going to have to be replaced anyways (they're whinning) is go down to 4.10 since I don't tow much and I do a lot of highway driving. That'll bring it to its original powerband.

Maybe it'll give me better results. I'm also going to have the spark plugs replaced since I doubt they've ever been done. I'm seeing a huge gain from doIng the fuel filter and cleaning the maf sensor. Also have the transmission serviced.

Thanks for the help.

Are the data logging for the monochrome the same for the gryphon cs?

[Longshot270]

Look online for a gear chart. There are tons of them floating around. You compare tire size with gear ratio and inside the matrix is RPM. I think there is also a gear ratio calculator here on either the PHP website or the PHP forum. I just went through the Pegasus program (for my programmer), which has a gear ratio calculator. Using 235/70-17 as your stock tire size and 315/75-17 (approx. 35" diameter), the 4.10 would bring you similar to the 3.55 stock ratio. 4.46 would be ideal to get you to a 3.73 ratio but the next closest gear option would be the 4.56.

The CS/CTS do not have the datalogging. I was thinking you had the MC gryphon for some reason.

[PerpetualSeanX]

Originally Posted by Longshot270

Look online for a gear chart. There are tons of them floating around. You compare tire size with gear ratio and inside the matrix is RPM. I think there is also a gear ratio calculator here on either the PHP website or the PHP forum. I just went through the Pegasus program (for my programmer), which has a gear ratio calculator. Using 235/70-17 as your stock tire size and 315/75-17 (approx. 35" diameter), the 4.10 would bring you similar to the 3.55 stock ratio. 4.46 would be ideal to get you to a 3.73 ratio but the next closest gear option would be the 4.56.

The CS/CTS do not have the datalogging. I was thinking you had the MC gryphon for some reason.

Lol, no big deal on the MC thing, I kinda figured there wasn't datalog, I've gone through all the menus pretty thoroughly.

Well, I guess I'm in the right area for gearing if thats the case with my 4.56's considering I had the 3.73's to begin with stock.

I just called a couple places to do my spark plugs (I really don't have the time to deal with broken spark plugs) and these dealerships around me are out of their damn minds. . .One quoted me 360 something plus 115 if they broke one or more plugs, the other was $600!!!(Didn't even ask about broken plugs)

I may end up having to find time if I want them done, not sure I can stomach paying that much for a spark plug change. . .

I just pored a can of Seafoam into my gas tank to clean up my jets a bit, add that to the list of things I've done to get this truck running as well as it can.

[Longshot270]

Originally Posted by PerpetualSeanX

Also, someone suggest I obtain a datalog from my truck, I assume using my gryphon, insinuating that it may help in diagnosing a potential problem. Does anyone know about that? Perhaps someone could enlighten me on how to get it, how to use it, where to post it, etc...Thanks

See the link in my sig pic. Datalogging instructions for the monochrome gryphons.

Originally Posted by PerpetualSeanX

Forced induction? I'm confused. I see people with 3.73 and 35'' tires doing 7.5's and 8's. Are they all full of it?

I guess what I really mean to say is, I was expecting that my 0-60 time would be better when I put in 4.56 gearing. Instead it literally hasn't changed at all. And to add insult to injury, my millage suffers slightly as well. So, did I waste 1300? What is everyone talking about saying that they get better performance or their low end grunt back by regearing.

Don't get me wrong, my 0-60 time is not really a big deal. It's more just something to help me gauge how my truck is doing power wise and how it stacks up compared to other trucks like and unlike my build.

As it stands, it doesn't seem to stack up well against other like builds, so that makes me think something is wrong.

With my tranny temps siting at 16X degrees and perhaps original spark plugs, and maybe even a torque converter issue, I'm praying that is the issue.

I'll have to respectfully disagree with you at this time that forced induction would be required to get the f150 to the 8's 0-60. Especially considering I've hit 9.1 seconds once.

I appreciate the input, perhaps you could explain to me a bit more on why you feel forced induction would really be needed to get me to where I want my truck to be. Not trying to be a sarcastic jerk, just genuinely curious.

Thanks again for your time and anyone else who may have an idea as to whats going on with my truck.

1. Do not use the programmer. It is full of chit. Get your tire size dialed in and use a stopwatch. Any result from the programmer's "performance test" will be incorrect. I'm not sure why they are wrong but comparing to an official drag strip the 1/4 mile times are wrong. Also, I could make my truck have a 5 second 0-60 by regearing and not entering it into the tune. If you were to reprogram your truck and not change to the correct gearing the speedo would read faster, the 0-60 would improve dramatically as a consequence from an incorrect reading.

2. Based on what I've been seeing over the years the 4.56 gears are too low for regular driving. For 35" tires, most people go to the 4.10s unless they are doing a bunch of towing. Like the quote from Bill that Cody included, having the gears too low keeps the PCM from properly computing engine load. Your gearing is fitting for 37+ inch tires. I also would be happy that the mileage hasn't taken a nose dive. IMO, if you are going to be throwing on huge tires and lower gearing, you have to pay to play. You won't be improving mileage by making your truck less efficient at delivering power to the ground.

3. You are also battling physics, something that does not lose. By increasing tire size you increase the rotational inertia of the tires, making it harder to accelerate. You are also increasing the mass, which compounds the inertia. The lift probably doesn't help because if the truck rears back on acceleration, that is wasting energy.

Forced induction effectively gives you more power at a given RPM. Cody nailed it with his last post. In a 0-60 you need to generate as much power as quickly as possible.