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Old 01-19-2011, 12:14 AM   #1
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2003 cobra hp?

2.3l whipple
Jba headers
Catted x pipe
Bassani catback
60lb injectors
Sct maf
Jlt cai
3.55 gears
***3.500*** reichard racing pulley
And of course other stuff lol

This car was dyno tuned at Anderson Tuning solutions. Ive been told from the guy I got it from it had 603 rwhp. Only the best was put on this car but I've seen similar setups doing less hp or more with same size pulley ..is 600 at the wheels possible with a 3.5 pulley on that set up? Also if I got a 2.94 in pulley would I have to get it re-tuned for such a difference in pulley size. what kinda psi is a 2.94 pushing? What kinda psi is a 3.500 pushing?

Any answers would be highly appreciated..
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Old 01-19-2011, 08:59 AM   #2
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I've got almost the same set up u got. I have a 6lb lower and a 3.5in blower pulley. I have 19.9 psi. It dynoed at 593 in Wisconsin when I bought it. It got it tune in Louisiana summer heat and it went 574hp. Sounds like your tune is really pushing it. My tune seems pretty conservative but I'm satisfied with it.
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Old 01-19-2011, 09:22 AM   #3
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Re: 2003 cobra hp?

whats your A/F across the graph? Whats your fuel system modifications?
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Old 01-19-2011, 09:26 AM   #4
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Re: 2003 cobra hp?

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Originally Posted by 9303SVTdude View Post
2.3l whipple
Jba headers
Catted x pipe
Bassani catback
60lb injectors
Sct maf
Jlt cai
3.55 gears
***3.500*** reichard racing pulley
And of course other stuff lol

This car was dyno tuned at Anderson Tuning solutions. Ive been told from the guy I got it from it had 603 rwhp. Only the best was put on this car but I've seen similar setups doing less hp or more with same size pulley ..is 600 at the wheels possible with a 3.5 pulley on that set up? Also if I got a 2.94 in pulley would I have to get it re-tuned for such a difference in pulley size. what kinda psi is a 2.94 pushing? What kinda psi is a 3.500 pushing?

Any answers would be highly appreciated..
600 does seem a bit high for just a 3.5" upper pulley. However, every car is different and every dyno is different. You could take your car to 3 different dynos and get 3 drastically different numbers. I would expect around 575ish with that pulley setup...but, depending on the tuner, the dyno, the weather, anything is possible.

You would absolutely need a a tune update to change to a 2.94 pulley. You may also want to make sure your fuel system is up to it. If it is stock still, it may not be up to the task of supporting that much boost. I would hope the previous owner upgraded it anyhow.

You should be pushing around 17 psi with that pulley setup if it is a gen 2 blower. If it's a gen 1, it might be 15-16 psi.
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Old 01-19-2011, 09:39 AM   #5
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I've got 60lb injectors and a BAP. Air/fuel stays right at 12 3500-6500. 574hp 559tq. I've gotta 4 lb lower also wanna try that with a 3.0 or 3.25 bp just to see if that may change things up a bit.
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Old 01-19-2011, 12:19 PM   #6
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Re: 2003 cobra hp?

im just here drooln at your guys numbers...mmm 600hp...sounds tasty.
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Old 01-19-2011, 02:28 PM   #7
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Re: 2003 cobra hp?

yeah, my last mustang was a 92 notch. about 300 hp but just as much fun. really miss that car.
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Old 01-19-2011, 02:31 PM   #8
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Re: 2003 cobra hp?

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im just here drooln at your guys numbers...mmm 600hp...sounds tasty.
Lol same here. I'm over here with 110hp stock and these guys talking about 600hp
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Old 01-19-2011, 02:45 PM   #9
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Re: 2003 cobra hp?

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im just here drooln at your guys numbers...mmm 600hp...sounds tasty.
+1
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Old 01-19-2011, 03:49 PM   #10
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Re: 2003 cobra hp?

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im just here drooln at your guys numbers...mmm 600hp...sounds tasty.
+1000000 ...i would love that much hp... stupid v6
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Old 01-19-2011, 04:27 PM   #11
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Re: 2003 cobra hp?

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Lol same here. I'm over here with 110hp stock and these guys talking about 600hp
I have one of each...my 93 4 cyl hatch is a pavement pounding monster...well, at least it was. I just parked it in prep for the motor swap. lol
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Old 01-19-2011, 04:30 PM   #12
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Re: 2003 cobra hp?

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I have one of each...my 93 4 cyl hatch is a pavement pounding monster...well, at least it was. I just parked it in prep for the motor swap. lol
Me and my dad are looking for a donor 5.0 to do a swap with on my 2.3. So until then I'll save on gas
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Old 01-19-2011, 04:31 PM   #13
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Re: 2003 cobra hp?

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Me and my dad are looking for a donor 5.0 to do a swap with on my 2.3. So until then I'll save on gas
I got lucky and found a complete motor for $600 on ebay...verified running...I just need the other tidbits like the computer and a clutch and I'll be good to go.
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Old 01-19-2011, 04:32 PM   #14
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Re: 2003 cobra hp?

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I got lucky and found a complete motor for $600 on ebay...verified running...I just need the other tidbits like the computer and a clutch and I'll be good to go.
Nice, you can find computers on eBay as well.
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Old 01-19-2011, 05:48 PM   #15
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Re: 2003 cobra hp?

I'm with them, with just that upper it's pushing it.

I'll go ahead and tell you that when you approach the 650 mark you will run out of fuel with the stock pumps. At a minimum you will need supercar pumps and dual fpdm's.

Best thing I can say is see if you can get a copy of the dyno run with a/f ratio on it. Take a look for any issues and find out what timing it's running.
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Old 01-19-2011, 08:23 PM   #16
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Re: 2003 cobra hp?

I've got the same exhaust except I have bassani midlength headers. I hate the way my car sounds. Do u like yours?
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Old 01-19-2011, 08:39 PM   #17
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Re: 2003 cobra hp?

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I've got the same exhaust except I have bassani midlength headers. I hate the way my car sounds. Do u like yours?
What's your full setup? I have those miss, offroad h, and stingers. I love my setup.
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Old 01-19-2011, 09:16 PM   #18
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Bassani midlength headers, catted xpipe, mufflers back. All bassani. Too high pitched. Lots of popping on decel. Only sounds ok when I'm on it.
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Old 01-20-2011, 01:18 AM   #19
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I'm pretty sure fuel system is upgraded I'll have to look to see specs though. Also I love my setup. I consider somewhat of a sleeper If a cobra can be a sleeper..my exhaust is quiet and extremely mild till around the 4k mark and then it opens into thunder lol
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Old 01-20-2011, 01:36 AM   #20
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Mine is loud all of the time. Thinking about ultraflows. Our cars are pretty close to the same though. I got transmission problems right now but I'll take care of that soon.
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Old 01-20-2011, 01:19 PM   #21
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Re: 2003 cobra hp?

It must be your headers.

I have stock headers, bassani o/r x, bassani c/b and I love the sound. Nice and smooth, very little popping on decel, etc. I had single chamber flows and they sounded like junk.
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Old 01-20-2011, 01:23 PM   #22
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The problem is, the 4valve exhaust just won't sound as good as the 5.0 or the 2 valve gt's. No car sounds as good as a 5.0 fox.
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Old 01-20-2011, 01:29 PM   #23
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Re: 2003 cobra hp?

ive grown to like the 4v 4.6L DOHC over most other mustangs, the 5.0 sounds good but I guess i just got tired of hearing them everywhere.
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Old 01-20-2011, 01:42 PM   #24
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Re: 2003 cobra hp?

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The problem is, the 4valve exhaust just won't sound as good as the 5.0 or the 2 valve gt's. No car sounds as good as a 5.0 fox.
I'm the opposite. I love the 4v sound. We have all three at the house and to me it goes 4v,2v,5.0.
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Old 01-20-2011, 02:09 PM   #25
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The sound of the whipple screaming over everything else is pretty cool though.
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Old 01-20-2011, 02:10 PM   #26
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Re: 2003 cobra hp?

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The sound of the whipple screaming over everything else is pretty cool though.
So your whipple screams? Nice...I've heard some that do, some that don't. Seems to be hit or miss with them. I love hearing the KB scream as well....well, when I can hear it over the exhaust that is. lol
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Old 01-20-2011, 02:13 PM   #27
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It's quiet until about 8 psi or so. Guys at the track in the stands said all they could hear has that whine over exhaust and everything.
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Old 01-20-2011, 08:33 PM   #28
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Re: 2003 cobra hp?

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The sound of the whipple screaming over everything else is pretty cool though.
I prefer ported eaton around 17lbs...
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Old 01-20-2011, 08:38 PM   #29
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Yeah they sound pretty good too. Air filter and filter placement have a lot to do with it too.
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