Just picked up my new 250SD supercab. Have about 200 miles on it so far. Is it my engine alone, or does this motor seem to not have much power? I have a 350SD turbo deisel thats got a lot more power than the V10, I also think that my 97 Yukon with a 5.7L (350) has more power than the V10.

 

That's kind of a subjective question, isn't it? My much heavier Excursion will get up and move! Maybe my feeling of power is different that yours?

By the numbers, the V10 is more powerful than both of the engines you compared it to (assuming they are both in stock form, although the PSD has more TRQ.)

Maybe something's wrong with it???

 

Both the engines i compared it to, were bone stock...The GM Block would just about spin the tires on acceleration, the Diesel will definately chirp on acceleration, The V10 just doesn't have any low end torque. Granted, the engine has only 2oo miles on it, but I would think it has more power than what I'm feeling...It just doesn't push you back into the seat like the other two blocks. I bought a Diablo Chip for it, but I don't want to put it in till i know ther's nothing wrong with this V10.

 

dude... the largest mistake of my life was my last truck... a chevy with a 350..... it was a HELL of a lot more powerful "feeling." I think what that feeling was was a MUCH more responsive throttle.... ur diablo chip will put some of that throttle feeling into your superduty. turning off the overdrive will help in this area too.

 

[updated:LAST EDITED ON 10-May-02 AT 10:50 PM (EST)]Give it some time to loosen up,it will wake up within 3000 mi.I had a 4.6 Ford a while back and it had absolutely no low end torque and only felt somewhat strong at higher rpms when it was new.Within 3500 miles it had a lot more low end torque than the 300 six cylinder it replaced and simply hauled a$$ in the upper rpm range.

In time it should become more responsive,more powerful and the gas mileage will increase.

 

Before you add the chip, read pages 7 and 8 of your warranty book concerning aftermarket chips. If you suspect a problem with the engine, Ford should make it right. Don't give them a good excuse to void the warranty.

 

My 93 E-150 w/the 302/E40D would spin the tires, my V-10 w/the 3.73 won't. My 95 F-250 PSD/E40D would, my 93 F-150 with the 5.0 and 5 speed would, my 86 with the 6.9 diesel/C-6 auto and ATS turbo would, my 89 F-250 w/the 460 and A40D would. But my V-10 E-350 would run away and hide from all those trucks that could spin the tires. Personally, I'd rather walk the walk (go fast) than talk the talk (chirp the tires).

 

4V's tend to make the power up higher. The "butt dyno" is not
calibrated to feel the power up there as much as that big
impulse spike you get at launch in a huffer (2V) engine.

But that does not mean the power is missing, just shifted up
a bit in RPMs. Switching gear ratios can compensate for a
lot if you want to get to the off the dime a bit quicker.

I wonder if a gear splitter would comfuse the computer. Nothing
like lots of gears with a high revving engine. Honda s2000
being a prime example.

-Jim

 

>>I wonder if a gear splitter would confuse the computer.

I tend to doubt it. Why would you think that they would? They do not interfere with any of the sensors that gather information for the computer.

They run about $3K but would probably be the best for your motohome's performance in the long run. With a splitter you can keep your engine stock (for reliabilty) but be able to "use" the powerband more efficiently and effectively. I had considered one until I realized that I really don't NEED one. I just WANT one.

 

>4V's tend to make the power up higher. The "butt dyno" is
>not
>calibrated to feel the power up there as much as that big
>impulse spike you get at launch in a huffer (2V) engine.
>
>But that does not mean the power is missing, just shifted up
>a bit in RPMs. Switching gear ratios can compensate for a
>lot if you want to get to the off the dime a bit quicker.
>
>I wonder if a gear splitter would comfuse the computer.
>Nothing
>like lots of gears with a high revving engine. Honda s2000
>being a prime example.
>
>-Jim




Whose got a 4V V10????

 

OO OO I didn't even catch that! But can I have one too!!?

 

Hey 4x4x4x4....regarding your post on 5/10....is there a technical reason that one would expect better performance after the vehicle has been driven a few 1000 miles? What happens during "break in" that will
improve performance? I am waiting impatiently for my V10 to come in..
and frankly, I expect some serious performance from the V10...

I've heard varying opinions of "break in" periods. Miles per gallon isn't a real concern..but out and out performance is. Is it a given that I won't be able to walk the talk until several 1000 miles have been racked up? In the old days, I heard that you should drive a new vehicle hard from the beginning..i.e. quick acceleration and high
speeds (where safe)...what are everyones' thoughts on if/what "break in" stands for.
Thanks again,
Lisa

 

Think you maybe got a bad one or something. I brought my truck home dropped the camper on (almost literaly)and took of on 3000 odd mile trip and she never missed a beat. Pulled all the hills with ease. There is a pass in BC on the Kokahaula highway that is murder on anything that isn't in good cond and I pulled the grade at 65 with out any trouble. The truck had 200 miles on it when I got it.
Had the camper of the other day and punched it (well almost)from a stop and the tires were more than ready break loose
had I kept on the gas I'm certain I would of been in a cloud of smoke.
As for breakin them in, drive it like your going to use it.

 

[updated:LAST EDITED ON 14-May-02 AT 07:17 PM (EST)]My mistake - the v-10 revs a lot like a 4V and acts like
one 2 the way it makes power up high. I was confusing the
thread on the prototype with the stocker.

So why does the V-10 make it's power up high? Could you
make it into a grunt engine with low end cam and a chip?
It sure seems to have the characteristics of a 4v.

-Jim

Oops - as for break in, I believe in reving the engine all
through the power band, but not over stressing it the first
500 or 1000 miles. Only way to do this is on an auto is
to manually run it through different gears.

The racing school of thought says drive it like you stole
it on break in. I have seen some good results doing it this
way as well

Worst thing you can do is run one RPM for a big portion
of break in period.

 

>Hey 4x4x4x4....regarding your post on 5/10....is there a
>technical reason that one would expect better performance
>after the vehicle has been driven a few 1000 miles? What
>happens during "break in" that will
>improve performance?

A new engine doesn't spin as freely as a worn in engine.There is more friction in a new engine due to new parts,especially piston rings,not worn in yet.Internal engine parts these days have better machining finishes on them and break in isn't as critical as it once was.Ford warns against towing the first 500mi.and I believe the reason is because of extra heat and stress placed on a new engine isn't good in the long run.It is also commonly understood that gas mileage in a new vehicle is lower than an identical vehicle that has a few thousand miles on it.Why?I'd guess that it's because the engine and other drivetrain parts have more friction when new and it takes more fuel to overcome these frictional losses.

Someone mentioned about race car drivers running new engines hard at the get go.Race engine builders build engines on the loose side of allowable tolerances.Makes them spin free'er and make more horsepower,but they don't expect to go 100,000 plus miles on their engines either.

In my opinion it is best not to rush the break in period.I don't believe a few rpms are all that bad on a new engine.Full throttle and long hard pulls at full throttle are taxing on an engine,ESPECIALLY a NEW ENGINE!Lugging an engine also isn't good either.Varying engine rpms and cycling the gas pedal a bit has been advised for years by many people.

I didn't wind my V-10 up until I had 1000mi.on it and I'm not one to baby an engine once it's broken in.

I don't believe a person can go wrong being a little conservative with a new engine for about 1000mi.

Just my .02