Cam install question

mudchucker · 02-21-2005, 08:49 AM

Ok guys, i have asked a couple questions before, but now i am getting down to the install. I am putting in an E303 cam into my stock 5.0 lincoln Motor. If i keep it Speed Density what all do i have to do? Do i need to do new valve springs? I have a Mustang ECM and Stock Mustang Heads, a stock upper and lower GT intake and a 70mm throttle body and spacer.. Is there anything that i need to have done in order to have this thing run correctly?

Thanks for the help,

Aaron

Zack87GT · 02-21-2005, 09:13 AM

How many miles on the motor? It might be a good idea to change them just so you don't float the valves.

mudchucker · 02-21-2005, 09:42 AM

about 60k on 70 k on the motor itself, however i believe the heads have abot 90k.

mudchucker · 02-21-2005, 10:42 AM

I also would like anybodies opinion on whether i should keep Speed Density or go to MAF. i have read many of the search results here and there are strong opinions both ways. I would love to hear your thoughts. Also, what about porting and polishing intake and heads? is it needed , will it improve much?

Thanks for your help

Aaron

Dark_5.0 · 02-21-2005, 12:11 PM

Speed density will easily do the job. Get an adjustable Fuel pressure regulator so you can manually add or remove fuel from the mixture and your good to go.

I was running speed density with big aluminum heads and a Lunati cam that was way more radical than the E-cam.

rwhite65 · 02-22-2005, 01:33 AM

As for porting and polishing, porting will be a good idea. If nothing else, removing the exhaust bumps will help a good deal. I would replace the springs. Not sure on which ones to tell you to use with that cam, but if the heads had 90,000 on them the stockers are getting up there.
Ryan

procharge94 · 02-22-2005, 04:31 AM

Stick with speed density unless you plan on running some boost, which will then add another factor into the tuning equation. Speed density has produced some pretty mean cars in the mustang world.

82 GT · 02-22-2005, 10:21 PM

Wait a minute...I thought speed density computers did not like changes done to the engine???
Don't you have to switch to MAF?

mudchucker · 02-23-2005, 10:29 AM

Quote:

Originally Posted by 82 GT

Wait a minute...I thought speed density computers did not like changes done to the engine???
Don't you have to switch to MAF?

This is what i had been told also. I have done quite a bit of research and with the help of the great people on this board, i have come to find out that keeping with Speed Density is just fine and many upgrades can be done with good results.

Dark_5.0 · 02-23-2005, 12:09 PM

Quote:

Originally Posted by mudchucker

This is what i had been told also. I have done quite a bit of research and with the help of the great people on this board, i have come to find out that keeping with Speed Density is just fine and many upgrades can be done with good results.

You just have to be careful with your cam selection. The E and B cam both work good with speed density.

Hell a friend of mine ran a mid 11 with a 347 stroker with ported edelbrock victor junior heads a F-303 cam and a Trick flow R intake on speed density. He changeed to a carb shortly after but it was cool to see.

drudis · 02-23-2005, 02:30 PM

I would do:
New timing chain
New valve springs
Look into roller 1.6 rockers

And put a degree wheel on it and dial in the cam.

Porting the exhaust ports is always a good idea.

02-21-2005, 08:49 AM	#1
mudchucker Registered Member Join Date: Mar 2004 Posts: 73	Cam install question Ok guys, i have asked a couple questions before, but now i am getting down to the install. I am putting in an E303 cam into my stock 5.0 lincoln Motor. If i keep it Speed Density what all do i have to do? Do i need to do new valve springs? I have a Mustang ECM and Stock Mustang Heads, a stock upper and lower GT intake and a 70mm throttle body and spacer.. Is there anything that i need to have done in order to have this thing run correctly? Thanks for the help, Aaron

02-21-2005, 09:13 AM	#2
Zack87GT Registered Member Join Date: Jan 2005 Posts: 33	Re: Cam install question How many miles on the motor? It might be a good idea to change them just so you don't float the valves.

02-21-2005, 09:42 AM	#3
mudchucker Registered Member Join Date: Mar 2004 Posts: 73	Re: Cam install question about 60k on 70 k on the motor itself, however i believe the heads have abot 90k.

02-21-2005, 10:42 AM	#4
mudchucker Registered Member Join Date: Mar 2004 Posts: 73	Re: Cam install question I also would like anybodies opinion on whether i should keep Speed Density or go to MAF. i have read many of the search results here and there are strong opinions both ways. I would love to hear your thoughts. Also, what about porting and polishing intake and heads? is it needed , will it improve much? Thanks for your help Aaron

02-21-2005, 12:11 PM	#5
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: Cam install question Speed density will easily do the job. Get an adjustable Fuel pressure regulator so you can manually add or remove fuel from the mixture and your good to go. I was running speed density with big aluminum heads and a Lunati cam that was way more radical than the E-cam. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

02-22-2005, 01:33 AM	#6
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	Re: Cam install question As for porting and polishing, porting will be a good idea. If nothing else, removing the exhaust bumps will help a good deal. I would replace the springs. Not sure on which ones to tell you to use with that cam, but if the heads had 90,000 on them the stockers are getting up there. Ryan __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

02-22-2005, 04:31 AM	#7
procharge94 Registered Member Join Date: Oct 2004 Location: Gainesville, FL Posts: 103	Re: Cam install question Stick with speed density unless you plan on running some boost, which will then add another factor into the tuning equation. Speed density has produced some pretty mean cars in the mustang world.

02-22-2005, 10:21 PM	#8
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: Cam install question Wait a minute...I thought speed density computers did not like changes done to the engine??? Don't you have to switch to MAF? __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

02-23-2005, 02:30 PM	#11
drudis Moderator Join Date: Dec 1999 Location: Livonia, MI, USA Posts: 1,194	Re: Cam install question I would do: New timing chain New valve springs Look into roller 1.6 rockers And put a degree wheel on it and dial in the cam. Porting the exhaust ports is always a good idea. __________________ Darius Rudis, Moderator Corner Carvers Delight 1989 Mustang LX - Open Track Car http://www.dariusrudis.com

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