Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: Quietleaf on April 15, 2008, 12:39:59 AM

Title: Any point in using this on a stock engine?
Post by: Quietleaf on April 15, 2008, 12:39:59 AM
http://cgi.ebay.com/ebaymotors/1986-96-MUSTANG-5-0-COBRA-HO-INTAKE-THROTTLE-BODY_W0QQcmdZViewItemQQcategoryZ33558QQihZ009QQitemZ190214611978QQrdZ1QQsspagenameZWDVW

Ran across this in my normal ebay surfing. Aside from 19# injectors and Edelbrock 65mm TB, my 1987 SD 5.0 is basically stock. If there is any conceivable benefit, is it hard to swap? My stock plenum was ground out to match the inner diameter of my TB but it must be pretty rough inside.
Title: Any point in using this on a stock engine?
Post by: ivygreen on April 15, 2008, 12:47:08 AM
I know what it says on the plate, but that doesn't look like a Cobra intake to me.  The Cobras had staggered ports and wouldn't work with your lower intake.  That looks like a stock 5.0 upper with a Cobra name badge.
Title: Any point in using this on a stock engine?
Post by: Quietleaf on April 15, 2008, 12:52:45 AM
Hmmm, yeah. I did a search on cobra intake and they're all staggered. Something fishy here.
Title: Any point in using this on a stock engine?
Post by: V8Demon on April 15, 2008, 08:44:07 AM
$5 dollar intake emblem, $10 dollar intake from JY, and some elbow grease make for eBay gold....What, you guys didn't know that?!:hick:

Scammers everywhere.
Title: Any point in using this on a stock engine?
Post by: TurboCoupe50 on April 15, 2008, 09:41:48 AM
Quote from: Quietleaf;214036
Aside from 19# injectors and Edelbrock 65mm TB, my 1987 SD 5.0 is basically stock.


And running rich if your firing those 19s with a SO computer...
Title: Any point in using this on a stock engine?
Post by: vinnietbird on April 15, 2008, 01:30:33 PM
For that $99.00,you can get an H.O cam and H.O speed density computer (and even have a little money left over),and do some good.
Title: Any point in using this on a stock engine?
Post by: Quietleaf on April 15, 2008, 04:14:17 PM
Quote from: TurboCoupe50;214069
And running rich if your firing those 19s with a SO computer...


Yeah, there's an adjustable fuel pressure regulator that the mechanic put in to get the mix right. I don't know how that works (the stuff I do to the car is all electrical), but he said it was necessary.


Vin: I wouldn't mind going with an HO cam, but it's not something I can/know how to do. I also don't know if anything else has to change (pistons, etc.)
Title: Any point in using this on a stock engine?
Post by: vinnietbird on April 15, 2008, 04:23:32 PM
You can swap the cam and the computer and call it a day.You already have the 19# injectors.I had E6 heads (the stock ones for your engine) for quite a while with the H.O cam and all,ran awesome.yes,E-7 heads and GT40 and whatever are better,but the difference you would feel is a major difference.The cam swap really isn't very hard at all.It's more intimidating than anything.The factory pistons and everything else is fine.You may want to upgrade to a higher volume fuel pump someday,but that really isn't a "Have to" thing for you.
Title: Any point in using this on a stock engine?
Post by: TurboCoupe50 on April 15, 2008, 04:44:02 PM
Quote from: Quietleaf;214125
Yeah, there's an adjustable fuel pressure regulator that the mechanic put in to get the mix right. I don't know how that works


Basically it turns your HO injectors into SO units...
Title: Any point in using this on a stock engine?
Post by: V8Demon on April 15, 2008, 05:10:39 PM
Yup, since the ECU and HEGO systems can't trim the AFR at stock pressure with the 19's, the pressure is turned down enough so that they will flow less and the system can operate smoothly.
Title: Any point in using this on a stock engine?
Post by: Quietleaf on April 17, 2008, 10:19:56 PM
Quote from: TurboCoupe50;214136
Basically it turns your HO injectors into SO units...


Hmmm. Sounds like I would have been better off with just 14# injectors then, maybe it wouldn't idle like . Too bad I don't have the knowledge to swap to an HO cam+computer and deal with any gotchas that are likely to arise.
Title: Any point in using this on a stock engine?
Post by: Beau on April 20, 2008, 11:01:58 AM
The computer would be easy, a coupla small bolts, and unplug the harness, and swap the two...

The cam IS more involved, but if you had something like a haynes manual, or something of the like, you could do it with decent tools.
Title: Any point in using this on a stock engine?
Post by: daboss351 on April 20, 2008, 11:46:25 AM
Yea honestly, motor work isnt hard, I have, myself, rebuild a motor (everything but the bottom end). Its not that bad as long as you take your time, separate and label the bolts, and a manual and/or digital camera helps. Taking pictures as you remove parts makes assembly easier!