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-   -   I gambled and maybe I (https://www.ford-trucks.com/forums/1503670-i-gambled-and-maybe-i.html)

fordman75 12-07-2018 09:05 AM

If you want a smoother idle, look for a cam with a wider LSA. I believe something in the 112-114 range would work for you.

Scndsin 12-07-2018 11:58 AM

It's not bad. Gives up a bit over stock from off idle to 1500 which is where it's advertised to come on.

It rumbles around my small town with ease & rarely sees 2k till I hit the highway

It idles before & after mass-air conversion at 750 & has a noticeable 3 second lope. You can literally count it off, but you have to pay attention to really notice.

It runs very hard up till fuel & tune cuts off before what I've learned here is about 5200 though I've never let it run long enough to get there.

It pegs the speedometer easily & WOT on ramps & passing are a blast.

I would suspect with your lighter truck & less hp eating transmission you might could do with more. Or less, but I don't know.

Conaski says my 512 is only slightly more aggressive than my stock 5.8 cam. (which I could give you maybe. New set of lifters & you'd be golden)

But in my warped filing system, I can't locate the actual numbers right now.

schoo 12-07-2018 02:50 PM


Originally Posted by Scndsin (Post 18347949)
It's not bad. Gives up a bit over stock from off idle to 1500 which is where it's advertised to come on.

It rumbles around my small town with ease & rarely sees 2k till I hit the highway

It idles before & after mass-air conversion at 750 & has a noticeable 3 second lope. You can literally count it off, but you have to pay attention to really notice.

It runs very hard up till fuel & tune cuts off before what I've learned here is about 5200 though I've never let it run long enough to get there.

It pegs the speedometer easily & WOT on ramps & passing are a blast.

I would suspect with your lighter truck & less hp eating transmission you might could do with more. Or less, but I don't know.

Conaski says my 512 is only slightly more aggressive than my stock 5.8 cam. (which I could give you maybe. New set of lifters & you'd be golden)

But in my warped filing system, I can't locate the actual numbers right now.

Dave I thank very much hoping for other in put guys

schoo 12-12-2018 05:26 PM

Main bearing
 
Was this caused by the TC
https://cimg7.ibsrv.net/gimg/www.for...84ab85f616.jpg
this end looks front


schoo 12-12-2018 05:28 PM

https://cimg3.ibsrv.net/gimg/www.for...8e952874ac.jpg
tranny side

Scndsin 12-12-2018 05:54 PM

First pic crank snout side & second trans side or vice/versa?

Hard to say either way. Doesn't look too excessive.

I'd ask your machine shop & maybe see if a trans shop would look at the torque converter for swelling/distortion.

schoo 12-12-2018 07:04 PM

Yes going to see the transmission builder. That’s 200k on it always hauling a E250 with construction tools so been used

baddad457 12-12-2018 07:44 PM

Probably normal for 200K, compare the wear to the other mains. If they're not in the copper, then you've got excess pressure in the converter. I went through one roller 5.0 that ate all the way through the thrust and had started rubbing the saddles with the counterweights.

Scndsin 12-13-2018 01:00 AM

OK I didn't see the notations. Looks like the chamfer on the trans side has some excessive thrust wear, but not totally eaten up.

200k seems good.

schoo 12-15-2018 10:27 AM


Originally Posted by Scndsin (Post 18358392)
OK I didn't see the notations. Looks like the chamfer on the trans side has some excessive thrust wear, but not totally eaten up.

200k seems good.

I edited that post Dave.
Iím thinking that same cam you used also why the 1.7 rocker versus 1.6?

schoo 12-15-2018 11:20 AM


https://cimg5.ibsrv.net/gimg/www.for...26e5f2c562.jpg
Got a hole in block don’t know what it’s for so didn’t paint it? It’s on the left side out side the oil pan

Scndsin 12-15-2018 12:07 PM

I think it's a dowel hole for when the block was machined at the factory.

schoo 12-15-2018 12:44 PM

Ok thanks on the hole info. so rockers 1.7 versus 1.6 what’s the difference

xlt4wd90 12-15-2018 02:29 PM

The 1.7:1 rocker ratio gives you about 6% more valve lift across the full range of valve lift. Depending on the rest of the intake, it can net some small power gains.

schoo 12-15-2018 02:34 PM


Originally Posted by xlt4wd90 (Post 18362805)
The 1.7:1 rocker ratio gives you about 6% more valve lift across the full range of valve lift. Depending on the rest of the intake, it can net some small power gains.

does the pcm/efi like them


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