GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Should this set up get me 300 RWHP?

Thread Tools
 
Search this Thread
 
Old 7/31/07, 10:25 AM
  #21  
Bullitt Member
Thread Starter
 
bored out's Avatar
 
Join Date: May 25, 2007
Location: Robins AFB
Posts: 463
Likes: 0
Received 0 Likes on 0 Posts
300 RWHP seems like the first quest for a N/A motor. I hope to accomplish this with the mods listed above. Here is my math, lol

stock = 265 HP
Cai/tune = 285 HP
shorty headers = 293
O/R H pipe = 300-305

I tried to be conservative 300-310 would be nice

I guess it depends on the tune and how accurate it is.
Old 7/31/07, 11:25 AM
  #22  
GT Member
 
Mikes_BLK_GT's Avatar
 
Join Date: July 1, 2007
Location: Pacific NW
Posts: 153
Likes: 0
Received 0 Likes on 0 Posts
Wouldnt long tubes give more gain than the shorty's? What about high flow cats or the combination of high flow cats and long tubes? I have to keep cats for emissions so if I cant have cats with LT's I'll have to look into shorty's myself.
Old 7/31/07, 11:43 AM
  #23  
Mach 1 Member
 
Bullitt995's Avatar
 
Join Date: May 17, 2006
Posts: 939
Likes: 0
Received 0 Likes on 0 Posts
You won't see much (if any) HP gain with shorty headers.
Old 7/31/07, 01:52 PM
  #24  
Mach 1 Member
 
Lowe!'s Avatar
 
Join Date: December 18, 2004
Posts: 669
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Mikes_BLK_GT
Wouldnt long tubes give more gain than the shorty's? What about high flow cats or the combination of high flow cats and long tubes? I have to keep cats for emissions so if I cant have cats with LT's I'll have to look into shorty's myself.
Yes, you can get LT headers with high flow cats on an H or X pipe. That's what I did (Catted H), for the same reason.
Old 7/31/07, 06:58 PM
  #25  
GT Member
 
GoFaster's Avatar
 
Join Date: August 11, 2006
Posts: 107
Likes: 0
Received 0 Likes on 0 Posts
You can't just add up the individual claims. It doesn't work like that. Otherwise I'd be pushing 330 or so at the wheels with my setup. I picked up ~30 rwhp from LTs, UDPs and CMRC deletes installed all at the same time. By the individual method, I should have gotten 30, 10 and 10, respectively.

Shorties and an off road pipe may give you a nice sound, but it won't do much in the HP department. The stock ones by all accounts flow really well. Not like the 5.0s, where shorties were an instant 15-20 hp. Save money on the headers and exhaust and get the delete plates and UDPs. You'll be at an honest 290 or so, and better set up for adding longtubes next year when the mod bug strikes again.
Old 7/31/07, 07:11 PM
  #26  
THE RED FLASH ------ Master-Moderator
 
m05fastbackGT's Avatar
 
Join Date: May 11, 2006
Location: Carnegie, PA
Posts: 10,112
Received 2,125 Likes on 1,706 Posts
Originally Posted by Bullitt995
You won't see much (if any) HP gain with shorty headers.
+10
Old 7/31/07, 07:40 PM
  #27  
THE RED FLASH ------ Master-Moderator
 
m05fastbackGT's Avatar
 
Join Date: May 11, 2006
Location: Carnegie, PA
Posts: 10,112
Received 2,125 Likes on 1,706 Posts
Originally Posted by GoFaster
You can't just add up the individual claims. It doesn't work like that. Otherwise I'd be pushing 330 or so at the wheels with my setup. I picked up ~30 rwhp from LTs, UDPs and CMRC deletes installed all at the same time. By the individual method, I should have gotten 30, 10 and 10, respectively.

Shorties and an off road pipe may give you a nice sound, but it won't do much in the HP department. The stock ones by all accounts flow really well. Not like the 5.0s, where shorties were an instant 15-20 hp. Save money on the headers and exhaust and get the delete plates and UDPs. You'll be at an honest 290 or so, and better set up for adding longtubes next year when the mod bug strikes again.
I agree with you on everything you've mentioned, except for CMCV delete plates.. In which, according to Brenspeed's website, clearly state ! their recommened for vehicles running lower end gears, and for those who frequently race their cars. By removing the OEM tumble plates" you'll lose a little part throttle low end torque, but gain performance at WOT. Most cars see in the area of a 5 RWHP gain by using these plates at upper RPM's..However on the other hand ? Doug from Bamachip's, also did some dyno testing on them, and found them to produce 5-8 HP, in the mid to upper RPM ranges
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
09-gt/cs
GT Performance Mods
9
10/15/15 10:03 AM
austin101385
'10-14 Shelby Mustangs
3
10/2/15 01:00 PM
Kalel08
GT
2
9/29/15 03:06 PM



Quick Reply: Should this set up get me 300 RWHP?



All times are GMT -6. The time now is 11:18 PM.