edlebrock intake manifold Q's

[1987cp]

plural- bad grammar had to be real quick in reading thread and to reply. my job doesnt like it when i use their palm pilots for recreational use...

making room- i thought since i have a 85 cfi 302 i thought i have limited clearance space for a better cam. maybe i was thinking of having the space bored for proper fitting?!?! i think thats what i was trying to say.

im still a noob my friend

Oh, I see. Nope, no space concerns whatever - a roller will stab right in place of your old cam. Only issues I know to worry about would be: 1) swap to a steel distributor gear to match the billet-steel roller cam (AutoZone offers you a choice when you buy a reman Duraspark distributor), and 2) obtain suitable roller lifters and retainers - selection will be strongly influenced by whether you have a roller block to work with (doubtful for '85, nonexistant for '79-'84). For nonroller blocks the typical choices are stock lifters and retainers (cheap if you buy used) with a Comp retrofit cam (~$265 new) and longer pushrods (~$50), or a stock-type cam (very cheap used - reusing cams is OK if it's a roller) with aftermarket link-bar lifters (~$400 new) and presumably shorter pushrods (~$50).

[1987cp]

cool, then when i get them ill most likely have to go to a machine shop to get that passage drilled out.

By the time you do that, it'd be lots easier and probably cheaper to get a ported E7 head that flows about as well or even better than a stock Explorer head. If you just have to have the Explorer heads, and your local smog-check guys absolutely insist you have a functioning air-injection system, I'd look into adapting an Explorer-style system way before making fancy mods to the heads.

[gadget73]

Indeed. I'm not 100% sure that the thermactor stuff can even be drilled into a P head. It may be possible, I just don't know. Physically I seem to recall there being holes you could bolt that air injection manifold thing up to on a P head, but it won't do jack squat. I don't know how picky your emissions testing is, but it would be fairly easy to make it visually appear intact. Functionally, thats a different story. The E7 heads do have that provision though, and the air injection will work as intended.

Explorers have no air injection or smog pump, so there isn't anything to adapt.

[Leo]

hmmm... damn... i guess gt40's are out then... damn california smog...DAMN YOU!!!

well how many horses could i achieve with:
ported E7 heads, comp retrofit cam, Ho cfi unit, lsc Ho ecm, electric fan, dual exhaust, and a edlebrock intake manifold w/ spacer?!?!

stupid q:
which engines have E7's (a really rediculously dumb q but i just want to make sure before i go to the junkyards)

Thanks Guys

[70torino429]

87-up stang/mark 7 ho motors have the e7 heads, as well as the 87- up 302 and 351 ford truck motors.

[1987cp]

Depends heavily on the particular head porter and which retrofit cam you choose.

http://store.summitracing.com/egnsea...=KeywordSearch

That said, the 35-412-8 is fairly small (206/206 degrees duration at .050") and is one obvious choice for a street 302. The Crane 444211 I have in one of my 302s is similar (208/216 duration) and I really like it. According to Desktop Dyno 2003 (generally considered as slightly optimistic), the Comp 35-412-8 may be good for up to 270hp at 4500-5000rpm and maybe 350 lb-ft from idle to 2500, given my flow file for one set of ported E7 flow numbers I have handy. For comparison, with stock E7 heads DD is showing more like 220hp at 4000rpm, which is all the RPM you'll turn with a stock shift governor anyway.

Explorers have no air injection or smog pump, so there isn't anything to adapt.

Oh, interesting information! So from what (very little) I know of California smog laws, he should be able to just in swap a complete Exploder top end and engine management system and not worry about the air pump - he can tell the goons it's exactly the same as on a lots-of-years-newer car and everything's present that was on the original application!

Although ........ if they consider an Exploder a "truck" .... hm, that might make that more complicated.

[Leo]

wow! this is great information. thanks for your guys input.

[Leo]

i have another question
regarding the govenors: do lopo engines have low rpm govenors b/c lopos have weak girly pistons that could possibly break at high rpms???
my question is: would i need a ho govenor and stronger pistons inorder to utilize the horse power at high rpms??

(i remember reading a thread about this a while ago but i cant seem to find it)

[1987cp]

I think it's entirely because with the (excruciatingly tiny) stock cam your peak horsepower is around 3500rpm. Toss a HO cam in an otherwise stock lowpo engine, and it suddenly becomes useful up to 4500 or 5000.

Stock cast pistons are fine for most foreseeable street performance mods as long as compression is around 9:1 or less and you don't plan to use boost or nitrous.

[gadget73]

lopo pistons can go 5000 rpm no problem, but the stock cam runs out of power way before that point.

[Leo]

coool! alright, that's good news. now ill get a pair of e7s.

now all im goning to need is a ho cfi unit and wiring harness.
thanks for your guys input.

[1987cp]

My dumb question of the day: what are the differences in the CFI unit between the "5.0 HO" and Vic versions? And won't the stock Vic wiring harness work fine with the different throttle body?

[Lincolnmania]

this is mostly unchartered territory......i know the ho cfi units have larger injectors and possibly a larger bore.....wiring plugs looked the same to me

[Leo]

shit.... couldnt get lsc ecm vin "M". online autoparts store had to back order and called me today saying they dont have the part but could rebuild one for me.... shit...
this upgrade might take longer than i thought

[gadget73]

Check corral.net. 85 automatic Mustangs had the same HO CFI motor and ecm. Maybe one of the guys has pulled his cfi stuff and will sell it to you.