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My latest Dyno results, and an stock 03 Cobra!

  • Thread starter Thread starter UB2 SLOW
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UB2 SLOW

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My latest dispointment at the Dyno. I got the New opti on and the car is running alot better. I also installed the Vortex Ram Air. Last Dyno Results were 301 HP at 6000rpms and 300 TQ at 4500 rpms. This time I pulled a peak HP rating of 306 at 6100 rpms and 301 TQ at 4600 rpms. I did not have a big increase in peak, but I increased about 2-3 HP through out the power curve. The Torque stayed flat. On the second run I put a Leaf blower under the front of the car, blowing air into the Ram Air. I pulled a peak HP rating of 313 at 6200 rpms. I did not have any difference in Torque until 5400 rpms. I got an increase of about 2 tq across the power curve after 5400 rpms. I also got about 4-5 HP across the power curve with the Ram Air. The power curve was also alot smoother. The car shifted at 6200, but the HP curve was still going up. I may adjust the shift points up some. The Air/Fuel ratio was a constant 12.7-12.8.
Oh yea, there was also a stock 03 Cobra there. It only had 1700 miles on it. The Guy was really nice. He also had an SS. On his first pull he had 366 HP at 6000rpms. He had 358 TQ at 4000rpms. The Torque curve was flat from 4000-5500rpms. It started to drop off just a little until 6000rpms. On his second run he disconnected the silencer. It is the Housing around the air filter. This thing is incredibly restricted. It curves back about 170 degrees. On his second run with an open filter he pulled 381 HP at 6200 rpms and 359 TQ at 4000rpms. He has a pully off a Ford Lighting and some exhuast that he is going to put on it next. He will easily bust 400hp at the rear wheels with a pully and exhaust. The problem is the car weighs 3700lbs. This is 500 more than a C4. Its Goodyear 275/40/17's cant hook up worth a poopie either. You have to milk it good, or have a really good driver behind the wheel. The best track time was 12.8@108.
 
So is the leaf blower going to be the next mod?

( Sorry couldn't resist )

Still sounds like restricted breathing...

What have you done to the plenum & Down tubes?


MORE AIR!


But not Via throttle body

Vig!
 
vigman, I would strap a blender on the engine if it would give me more horse power! :J


I dont have a plenum or down tubes. I have a LT1/LT4. It started off as a LT1, but I have put on a LT4 Hotcam, LT4 intake, LT4 heads(stage II port & polish), hooker shorty headers(damn emissions). I have muffler eliminators also.
 
They don't make full headers for LT's do they? They only make the shorty's, which are basically exhaust manifolds right?

388 rwhp is some serious %#@!@##!@

Cobra is definitely a respectable car and a far cry from the dime a dozen Mustang you see running around with just the loud exhaust. It's a force to be reckoned with and I think that anyone who takes it lightly will be looking at it's rear lights.

I'm not a Ford fan, but you have to give them a thumbs up for this one.
 
Yes there are long headers for the LT's!

I'm running out to the garage to look for the info.
I'll post again soon.
 
Check out Dougrippie.com for the headers and Randomtechnologies.com for the cats. Looks like it will set you back $1500 and there may be some fabriation involved.
 
Wheelie said:
Check out Dougrippie.com for the headers and Randomtechnologies.com for the cats. Looks like it will set you back $1500 and there may be some fabriation involved.

If I actually typed out what I said out loud, I would've been banned from this forum!:L
 
My response was more like @@##$$$%%&&^**%$#@##$% thats alot of !@@#%$%$%!%^#^ money.
 

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