GT Performance Mods 2005+ Mustang GT Performance and Technical Information

300 RWHP possible

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Old Mar 23, 2008 | 02:42 PM
  #1  
j0eyabs's Avatar
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From: San Lorenzo, CA
300 RWHP possible

I have a 2008 Bullitt and am wondering if I can get 300 RWHP with these mods.

62mm twin throttle body with steeda spacer
SCT tune
UDP
set of Crane street cams

also i have seen some people run a 13.20 1/4 mile stock on the Bullitt could I get down to a 12.50 with these mods and adding

Ford Racing suspension kit like on shelby GT
better street tires
aluminum driveshaft
alluminum lower radiator support
two piece brake rotors all around to loose 14lbs
and better rear control arms and panhard rod

is the 300 RWHP and 12.50 time un realistict on street tires with these mods?

Last edited by j0eyabs; Mar 23, 2008 at 05:48 PM.
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Old Mar 23, 2008 | 02:44 PM
  #2  
mark221's Avatar
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I would say no problem with the HP. I have 310 @ the rear wheels with the mods listed below. 12.50 might be a stretch though
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Old Mar 23, 2008 | 02:51 PM
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tom281's Avatar
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From: Medina county, OH
With my '06 before I went to forced induction, I had a JLT cai, Brenspeed tune, delete plates, pullies, and offroad midpipe and pulled 303/318. You should be able to hit comparable numbers fairly easily.

As far as 12.5 ET, 99% of that possibility depends on your driving skill. I don't get to the track much and will be the first to admit that ETs all depends on skill. I've seen a back to back run by a GT500, with the only difference being the drivers...... first time was like 13.2, second time was 11.9.
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Old Mar 23, 2008 | 03:03 PM
  #4  
70MACH1OWNER's Avatar
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From: New Carlisle, Ohio (20 miles north of Dayton)
I would think you could make it there especially after the cams. I have an auto trans and I made it finally. But it took the cams for me. As far as a 12.50....that seems a little out of range with only 300 rwhp. I believe if you are a good driver under great conditions you might go 12.8-12.90 at best.
Scott
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Old Mar 23, 2008 | 04:10 PM
  #5  
karman's Avatar
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300 RWHP probably.
Throttle body and spacer are a waste of money on that set-up IMO.
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Old Mar 23, 2008 | 05:47 PM
  #6  
j0eyabs's Avatar
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From: San Lorenzo, CA
so the throttle body and spacer will have no effect on HP gains?
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Old Mar 23, 2008 | 06:04 PM
  #7  
Hatchman's Avatar
Shelby GT350 Member
 
Joined: May 17, 2005
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From: Chesapeake, VA
Originally Posted by j0eyabs
so the throttle body and spacer will have no effect on HP gains?
I've heard enough stories about tb's popping codes, breaking gears, and leaving people stranded on the side of the road for me not to get one. I dyno'd one on my car, a whole entire 1 rwhp difference.

Now, the throttle body space, I could swear I could tell a difference in throttle response when I put one on an automatic, but once again, on the dyno, a big fat 0 rwhp gain.

Money can be spent better elsewhere. If you really want to get to 12.5, going to need some stickies.
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Old Mar 24, 2008 | 05:58 AM
  #8  
05YellowGT's Avatar
Shelby GT350 Member
 
Joined: February 24, 2005
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From: Delray Beach , FL
Before I was S/C'd , I had Steeda CAI , CMDP, pulleys and axial back exhaust. With these mod's I got 311 RWHP and 320 RWTQ ...
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Old Mar 24, 2008 | 06:17 PM
  #9  
Cowtown's Avatar
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From: Victoria, BC
I think if you skipped the driveshaft and put in some gears and got some drag radials you'd be at 12.50 if you're a decent drivers with the mods you list.
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Old Mar 24, 2008 | 11:34 PM
  #10  
j0eyabs's Avatar
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From: San Lorenzo, CA
i dont wanna go higher than the factory 3.73's since it is a daily driver. But I guess I will just do all the mods except for the TB and hope I can get intot he 12's and be happy. 12.99 is fine by me.
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Old Mar 25, 2008 | 08:57 AM
  #11  
traffic142's Avatar
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I am at 310 RWHP with basically JLT CAI, Bama Chips 93 octane torq tune, Steeda UDP and SLP LT headers with X pipe and flowmasters. This will keep you from cracking your heads open to swap cams and pay for a custom tune. Tell Doug at Bama and he will mod your tune to fit all your mods.
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Old Mar 25, 2008 | 10:38 AM
  #12  
dustindu4's Avatar
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If you're going to spend the money for cams, spend the other 1600 to get ported heads. You'll be 350 at the wheels with that alone


I have over 300 rwhp with just UDPs, offroad H, mezeiere pump, and JLT intake. It doesn't take much. With 4.10s and tires I can rip 12.7s all day. With a driveshaft I could get a 12.5. The cams are a waste of money unless you port the heads and get longtubes

Last edited by dustindu4; Mar 25, 2008 at 10:44 AM.
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