4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

shorties?

Thread Tools
 
Search this Thread
 
Old Oct 4, 2009 | 09:25 PM
  #11  
Bman2000's Avatar
Bman2000
Thread Starter
4th Gear Member
 
Joined: Apr 2009
Posts: 1,501
From: oregon
Default

as far as i know they will bolt right up to factory stuff, which means if you have a normal aftermarket x pipe or whatever if it volted up to your manifolds it should allow the shorties to bolt right in.
Old Oct 4, 2009 | 09:27 PM
  #12  
01GT4.6's Avatar
01GT4.6
6th Gear Member
 
Joined: Mar 2007
Posts: 5,726
From: Slidell, Louisiana
Default

I said low compression in regards to a nice NA setup, you are correct 9.5:1 isn't "low" but I don't see 300rwhp with just heads, and what ever other bolt-ons you have. Most people thing that just b/c a motor is built (forged) it adds hp. This is wrong, all it does is allows it to handle more HP, but doesn't correct it. So that would be that same as taking a stock motor and adding ported heads. I just don't see it, but I could be wrong. I hope for your sake that I am.
Old Oct 4, 2009 | 09:49 PM
  #13  
Bman2000's Avatar
Bman2000
Thread Starter
4th Gear Member
 
Joined: Apr 2009
Posts: 1,501
From: oregon
Default

i know it doesnt add any power, it adds security, better parts that can take more abuse, and of course balancing which allows for a more stress free higher rpm motor. and if they are lighter parts you may pick up some power from less rotating mass, but yea i dont expect a huge number. I do plan on running windage thingy and of course the headers on top of my set up, with a light flywheel and driveshaft. It may not be 300 but i would think id be up around there anyway, maybe 270-280, i mean i put down 225 and 275 on a mustang dyno with with some of the stuff i have now, make that dyno jet numbers your looking around 245-250 and almost 300 torque? i would hope heads could bring me up 30-40 hp. course on a mustang dyno i may only put down 250 lol no clue.
Old Oct 4, 2009 | 09:52 PM
  #14  
01GT4.6's Avatar
01GT4.6
6th Gear Member
 
Joined: Mar 2007
Posts: 5,726
From: Slidell, Louisiana
Default

we all know the dyno numbers are the real #, I'm sure what ever it makes you'll run good times with it, just as you did with 225hp.
Old Oct 4, 2009 | 09:52 PM
  #15  
teej281's Avatar
teej281
4.6L Section Moderator
 
Joined: Nov 2007
Posts: 10,286
From: South Central PA
Default

Youre gonna see the same problem that most people are seeing using pi cams with trickflow heads...or the lower stages anyways. The cams are going to extremely limit what youre gonna make. I mean you have the airflow now but with the small stock cams are not going to do much of anything. Id be surprised if you saw 260-275rwhp on the dyno you dyno'd on previously with the hp being 225. Just saying cus your dyno reads low and stuff. But i dont think it will be much of a huge difference because youre not going to be able to fill those heads with the stock cams.
Old Oct 4, 2009 | 09:58 PM
  #16  
Bman2000's Avatar
Bman2000
Thread Starter
4th Gear Member
 
Joined: Apr 2009
Posts: 1,501
From: oregon
Default

meh maybe, not really building cureent set up for power anyway. It would be nice if i spent 5k and didnt end up with a slouch motor but its not ment to be NA so i guess it doesnt really matter, im not holding out high hopes, im happy with what i got, and it will be more than that so YAY!
Old Oct 4, 2009 | 10:20 PM
  #17  
teej281's Avatar
teej281
4.6L Section Moderator
 
Joined: Nov 2007
Posts: 10,286
From: South Central PA
Default

Why dont you get some turbo cams a while and put them in there. I mean they would probably benefit you some N/A.
Old Oct 4, 2009 | 10:24 PM
  #18  
mustangmancp's Avatar
mustangmancp
5th Gear Member
 
Joined: Apr 2006
Posts: 4,503
From: Missouri
Default

Originally Posted by teej281
Why dont you get some turbo cams a while and put them in there. I mean they would probably benefit you some N/A.
Yea i was thinking the same thing?
Old Oct 4, 2009 | 10:52 PM
  #19  
Bman2000's Avatar
Bman2000
Thread Starter
4th Gear Member
 
Joined: Apr 2009
Posts: 1,501
From: oregon
Default

good point. didnt think about that. altho i thought turbo cams werent a whole lot different than the regular cams our cars cam with? but i could be way off on that.
Old Oct 4, 2009 | 10:57 PM
  #20  
teej281's Avatar
teej281
4.6L Section Moderator
 
Joined: Nov 2007
Posts: 10,286
From: South Central PA
Default

Well look at CMS's turbo cams. Did you order your motor yet??? if you didnt, make sure you have the pistons notched for valve reliefs and then run a set of CMS stage 3 turbo cams. They say they have a rough idle which will make it sound a little meaner and has .560/.560 lift 238/238 duration with a 116LSA i think. Im sure that any cam would probably be a little bit better than stock anyways. Might not though considering that turbo cams wont have a lot, or any at all, valve overlap due to the fact that valve overlap would seriously increase spool time of the turbos and wouldnt allow for max power.



All times are GMT -5. The time now is 09:09 AM.