My Cat is a Dog- N/A 3.8 mods - TCCoA Forums
 
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post #1 of 6 (permalink) Old 11-11-2002, 01:01 AM Thread Starter
 
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My Cat is a Dog- N/A 3.8 mods

Hey fellow Cougars, just joined up. I'll get right to the point. Just picked up a 91' Cougar LS V-6. Wanting to know what mods are available to get this anaemic 3.8 cat to move it's tail a little. I've owned a 5.0 Mustang up until this point and know my stuff when it comes to mods on it, but I am very unfamiliar with the 3.8. I know basic mods like air filter silencer and timing, but what I really want to know are there any reasonably inexpensive mods that I can do to pull another honest 25hp or so out of this engine. (Head/intake porting, exhaust, etc) I have access to all machinery needed and am fairly capable when it comes to using it. I'm really just concerned that if I spend 20+ hrs porting and polishing a set of heads, am I gonna see any noticeable difference. What about even little things, (plugs, TPS adjust).

Also, anyone have anything that I need to know about this particular year as far as recalls and such goes?

Whatever you've got would be appreciated?
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post #2 of 6 (permalink) Old 11-11-2002, 07:02 AM
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head and intake porting, a new cam, and an underdrive pulley got me 45 more RWHP over stock and 20ft-lbs over stock
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post #3 of 6 (permalink) Old 11-11-2002, 03:53 PM
 
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now I can't realy mess with the head, bt I do plan on p&P the intake a little since I have to replace my head gaskets anywys...But is there any wa that I could P&P the head, just enough to get a little more power...Just don't anna ruin it...Thanx for any help

Wes
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post #4 of 6 (permalink) Old 11-12-2002, 02:27 PM Thread Starter
 
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Quote:
Originally posted by rancherlee
head and intake porting, a new cam, and an underdrive pulley got me 45 more RWHP over stock and 20ft-lbs over stock
Not to piss and moan over your suggestions, but how did your gas mileage suffer with the above mods. I know that you can't have it both ways, but I'm hoping to retain some fuel economy. Also, what cam did you use (Make/manufacturer, specs).
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post #5 of 6 (permalink) Old 11-12-2002, 04:38 PM
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MPG is the SAME as it was when my car was stock still maintain a 21mpg average 50/50 highway/town.
I got "Thunder Jr." cam from rpm-mustangs.com
205 intake 216 exhaust @ .050 lift
.477 intake .495 exhaust lift
Uses stock pushrods but needs new valve springs
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post #6 of 6 (permalink) Old 11-12-2002, 04:57 PM Thread Starter
 
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Hmmmm, now you’ve got my salivary glands working. What’s the deal with the stock heads, can they handle a little bit of milling to up the compression ration. I only know that the 3.8’s are famed for being weak in the head gasket dept and worry that a bump in compression would compromise durability. No idea what it is stock. Did you mill yours at all, or just stick with the port and polish?
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