This is topic What kind of cam. in forum Tech Talk at Northern California Ford Owners  .


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Posted by six 5.0 (Member # 3153) on :
 
Wsup guys, I have a 86 (Speed density) and I have no plans to convert to Mas-air (well I might). So does that mean that a cam is out of the question? Also what are some good HP gainers that WILL work on a S-D Stang, and are worth the $.

I already have

3.55
U/D Pullies
O/R H-pipe (for sale $60)
Flows
Centerforce clutch
and some other little things
 

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Posted by Black94 5.0 (Member # 655) on :
 
Do you still have the 86 intake?...

The upper intake manifolds are more restrictive than 87+ SEFI Mustangs...

If anything sucks on 86's it's the cylinder heads...A cam is kinda pointless on a 302 with heads like that...I know it's not the answer you wanna hear, but if you want more power change the heads...

[ May 23, 2004, 02:22 PM: Message edited by: Black94 5.0 ]
 

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Posted by Norgs (Member # 649) on :
 
if u want any more power u have to convery to mass air. its not a good idea to run a bigger cam without mass air or stock heads. no power and with speed density it probably wont run correctly
 

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Posted by JohnB (Member # 969) on :
 
You're not going to be able to run any kind of lift with that setup....86's have true flat tops..no valve reliefs. Nevermind the speed density..
 

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Posted by six 5.0 (Member # 3153) on :
 
Damn you guys know your shit. I will definitly change the upper intake. I will do the heads when I can save up enough $ to buy them and pay one of you guys to install em. Any thing else you think I should do?
 

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Posted by six 5.0 (Member # 3153) on :
 
Question, can I boil up an 87+ upper intake to my 86 lower, or do I have to change both? B/c I have just the 87+ upper.

What is the difference between the Intakes

RE: the upper intake instalation. Do the fuel lines come out with the upper intake? or do they stay in the lower.
 

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Posted by shade- (Member # 298) on :
 
swapping the heads on an '86 motor is a gamble with piston to valve clearance as the '86 pistons did not have valve reliefs. If you are open to notching your pistons then a headswap is definitely for you (especially if you want to run a cam)
 

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Posted by chosen1 (Member # 1906) on :
 
i faced this same problem with my 86 a few years back. you could notch the pistons in the block, they do make a tool for that. i think the smarter road is the way i went and found a super low buck 88-92 shortblock , a used set of heads (ie Gt-40's), a used intake, and a used cam. if you are patient and shop around you can get everything pretty cheap.
 

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Posted by MR GO FAST (Member # 2088) on :
 
I just did the swap to a newer intake last month on my 86. I felt a difference between 4500-5000. Dont forget the throttle body and egr plate as well. All I did was change over the manifold vacuum lines over and plug the one fitting on the rear underside of the 87-93 manifold. Good luck
 

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Posted by MR GO FAST (Member # 2088) on :
 

quote:

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Originally posted by six 5.0:
Wsup guys, I have a 86 (Speed density) and I have no plans to convert to Mas-air (well I might). So does that mean that a cam is out of the question? Also what are some good HP gainers that WILL work on a S-D Stang, and are worth the $.

I already have

3.55
U/D Pullies
O/R H-pipe (for sale $60)
Flows
Centerforce clutch
and some other little things

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this wouldnt be a white one that was for sale about a year ago is it?
 

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Posted by six 5.0 (Member # 3153) on :
 
No, I sold that one (fianally) I got a different white one off some old guy that had in storage for approx 4-7 years so the more I drive it, the more things start to leak (brake). I have to change my valve cover gaskets (leaking), and BLACK94 5.0 brought up the manifold swap. Now I'am not a mechanicly inclined as you guys, so I'm sure I will have some more Q's on how to do this. I do have some one who has some experince helping me.though.

RE: Heads what if I just bought a used motor off one of you guys and do the swap. Or is it a better idea to go off my block?

PS, Thanks for all the help guys
 

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Posted by Black94 5.0 (Member # 655) on :
 
Hey, there was a guy giving away a 87+ intake in our ford sale section...The intake swap is really easy...It's pretty straigh foward, just unbolt the intake tube and the "5.0HO" intake cover plate and then take off the six upper intake bolts...Remember it's only the upper 86 intake that is different the 86 lower intake is the same as 87+....BTW, don't look for 100 horse power when you do this, but a fre'er breathing intake will help out...

I recommend getting a different engine or rebuilding the one you have with better pistons...The flat top forged pistons really limits what kind of heads and cam you can use due to piston-to-valve clearence...

You could throw a set of 1.7rr's on the stock heads and be close on your PV clearence and gain some extra hp's, but not as much as you would with better heads....
 

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Posted by six 5.0 (Member # 3153) on :
 
I just got one, thanks anyways man. I'am going to do the swap tomorrow, i'll let you guys now how it goes. And when I start really digging in to the motor ill give you guys a hollar. Thanks again for all the guys.........
 

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Posted by six 5.0 (Member # 3153) on :
 
OOOOOOOOOOHHH MAN I F@#ked my up car tryin to do the swap, or at least I thought I did. Shaun came over an fixed it in about 2 min, looks like im not doing anything on my own any more,,,,,,,,,,,,, Thanks Shaun
 

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