If that number is LIKE a Hughes(Engle) Cam,
then PERHAPS, it is a 270/285/108 cam..
The events of the stock cam, in at 110 (4* advanced) are;
268/116 comp /104 Power /276 exh /44overlap /Ica of 64*.. The cam in question COULD be;
270/118.5 comp/108Power/285exh/61.5 overlap/ Ica of 61.5* If you have enough Scr, to pull that off, that could be a real nice cam, in every arena. If the lobes are still good, I'd run that in a heartbeat, installed at about 106.5. With headers, I'd probably shift it around 5600 max with a 4-speed, but with an auto, I'd rev it a couple hundred higher. Remember, I'm speculating.
Set up as above;
the Ica is only 2.5 degrees different from the stock 340 cam, so it will make similar CCP,
but the Power is 4* greater, which speaks to better fuel economy;
and the EFFECTIVE overlap is 57 compared to 40, so it's gonna make more absolute power, and idling at ~700 it will sound about 2 cam sizes bigger, which because it's all in the overlap, that's a good thing. But, because of all that overlap, for economy, that engine will want to cruize at a higher rpm; Ima thinking at least 2400, which translates to maybe 3.23s for 65=2614.
>I don't think that combo can touch my personal best of 32mpgUS, lol, but Ima thinking 20Plus mpg is doable, if the chassis is willing;
>but you'll have to run enough cruize rpm and TIMING to keep the intake clean.
>This cam NEEDS headers to get the best out of it. I wouldn't even think of running it with logs.
>Overdrive will not net you much better mpg, unless you get the rpm back up, lol..
I'm liking those imaginary cam specs.
BTW
if you retarded this imaginary cam to, in at 109, the new numbers are;
270/ 116/110.5/285/ Ica of 64, but the EFFECTIVE overlap is now 52*, so she's now sounding about a size and half hotter than the stock 340 cam, but the compression is now same as as the 340 cam, whereas the Power extraction is now a vastly better, 110.5. So it looks like the cam gave up a lil absolute power, and a few psi cylinder pressure, to get more mpgs.
Yes, at the price of gas today, I'd have no problem to run it at 109. if I had the cylinder pressure to spare.
This cam is like the Holy Grail of street cams; you can move it around quite a bit to target what you want it to do. I mean, If you had the pressure to spare, you could retard it another 2>4 degrees, and pick up even more fuel economy and still have a tad more Effective overlap than the Stock cam.
The more I play with this cam, the more I like it. Boy, where is an auto-cam-phaser when you need it.