? About dickmeyer mpg cam

[UglyEd]

Alright all i have a dickmeyer mpg cam i bought a while back anyone know how much mpg i will gain? Will it be worth the swap? And how does the car run with it, the same even doggier? Just wanting to make sure it is worth the time and effort. Mine is an 89 with a 1.3 carbed, no ecm, and a 5 spd now (yay). Thanks for any info y'all can give.

Uglyed and the Steve

[FestYboy]

The cam is designed for life under 4000 rpm. From what I've gathered from him, the lobes are ground to advance the curve of the intake closing point and thus add to the dynamic compression and increase the cylinder pressure. This should increase the available torque and decrease the BSFC within the usable RPM range. The rest is up to your right foot.

[mikemounlio]

IS the 5 speed working good for you?

[TominMO]

You should have better luck with your carby than I did with my EFI in my Aspire. Especially if you go to a non-feedback carb like a Weber, etc, and can jet it for less fuel intake. The EFI fought the cam lobe timing and lift, giving me constant CELs for a lean fuel condition. Which simply meant his cam was doing what it was supposed to do!

[UglyEd]

It is working great my other trans crapped on me no wonder they never ussd 5th gear but all worked out fine, the Steve is soo quiet in 5th its unreal thanks again!

Uglyed and the Steve

[UglyEd]

Yes i am running an 81 escort carb and is jetted for mpg i usually get between 44 and 46 and that was before my 5 spd swap dont have definitive numbers on the trans swap yet but preliminary results show about a 4 mpg gain, im hoping this cam will push me into the mid 50s! Lets hope.

Uglyed and the Steve

[FestYboy]

If you install the cam, you'll have to re-tune the carb and reset the ignition timing... Doing a direct A-B test without the above may do more harm than good.

[Sid_RallyX_82]

On top of that, what exhaust/intake manifolds are best for fuel efficiency? Has anyone made fuel efficiency headers?

[UglyEd]

Thanks all for the info i am going to do the swap will have to wait about 2 weeks or so until my mechanic gets freed up again

[UglyEd]

On top of that, what exhaust/intake manifolds are best for fuel efficiency? Has anyone made fuel efficiency headers?

That would be interesting to know about

Uglyed and the Steve

[FestYboy]

Typically, the longer the runners for either manifold, the lower the RPM torque peak. It's a function of air mass and pressure waves in conjunction with valve timing.

[UglyEd]

Typically, the longer the runners for either manifold, the lower the RPM torque peak. It's a function of air mass and pressure waves in conjunction with valve timing.

Very interesting ur on the virge of going above my head on the tech talk lol!

[TominMO]

Very interesting ur on the virge of going above my head on the tech talk lol!

He does that to me all the time. My eyes start to glaze over shortly after he gets into it.

[FestYboy]

Sorry...

Think of it like this: an engine is an air pump attached to a pipe organ. In order for that organ to make music, it needs to be tuned via different lengths of pipe. The better the tune is, the louder and more musical the organ becomes. And just as the organ has long and short pipes for different notes, an engine needs the same to "make music" for different RPMs. The better the music, the more power is made for the given "note" being produced.

[TominMO]

We're just yankin' your chain, Arty. :-) But thanks for the explanation.