Hey sorry guys I didnt really know where to post this but im just wondering how are the 2003 Cobra's getting so much hp out of such simple modifications?

 

I thought this was the best place because the 2003 Cobra is Supercharged.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by RamAir02TA:
<strong> Hey sorry guys I didnt really know where to post this but im just wondering how are the 2003 Cobra's getting so much hp out of such simple modifications? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I would probably have to say that it would be because of their multi-cam engines. I was a Mustang guy for a long time, but I got really tired of the cars always being second fiddle to everything. You had to rebuild the whole car to, just to find a good starting point.
That's what I'd go with as the reason they getting that kinda' power with just basic mods. 4 valves breathes better. Bang for the buck would definitely go to our cars. They're like brass knuckles in a fist fight.

 

.They have good heads and when you take away all the restrictions that ford gave them they wake up big time.Have you ever seen a car that came from the factory with boost that didn't respond well to minor mods.GN,Supra,syclone,wrx,

My friend has a 96 cobra and on motor it is at best a mid 13 second car but with a "t" trim on it it runs mid tens at 135 mph. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> Them motors respond well to boost.Just remember every 14.7 pounds of boost is like doubling the cubic inches of the motor.

 

Thanks for the info guys...

 

Hmmm. The equivalency of a 692cid motor sounds good to me. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

Guy locally with pulley, chip, exhaust, and a lil spray made over 500 to the wheels. He's itching for the kenne belle replacement blower though <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
They're nutso, its those damned 4 valve engines. Same reason the ferrari's and what not make so damned much power for a small motor. 5 valves per cyl on an 8 cyl engine is easy to make 375 horse out of <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

recent 5.0 mag. shows 616rwhp with new blower a k&n and open stock cat h-pipe <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> (19.5lb's boost)

it is pretty sick,but we have yet to see any killer times out of these cars?

time will tell

Larry

 

This sucks for us, Now I have to do my motor very soon!!! damn stangs. they cost some big $$$ once you do major mods, like the lightning. OH WELL 20 psi we would kill them!! Matter of fact I'll do it in 12-15psi <img border="0" alt="[pimp]" title="" src="graemlins/gr_pimp.gif" />

 

They are boosting the crap out of them.

Impressively the blocks are reliable.

Locally someone did 580rwhp with 22 lbs of boost (8 is stock for them).

I don't see that motor lasting or the person successfully racing the car with the factory IRS but it's neat.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Pro Stock John:
<strong> They are boosting the crap out of them.

Impressively the blocks are reliable.

Locally someone did 580rwhp with 22 lbs of boost (8 is stock for them).

I don't see that motor lasting or the person successfully racing the car with the factory IRS but it's neat. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If Ford put them together correctly they will last. They threw the kitchen sink at those motors as far as reliability goes. Switched to Iron Block, Forged bottom end, Forged Manley "H-Beam" coinnecting rods, 8:1 compression ratio. On paper with adequite fuel these motors should be able to handle 15-20 LBS of boost. To do this reliably I think you would have to switch blowers though. The stockers seem to have heat problems if you boostem too much.

 

[ </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Pro Stock John:
They are boosting the crap out of them.

Impressively the blocks are reliable.</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I hate to bring up the discussion again, but they changed to an iron block for the boosted Cobra, didn't they? That's gotta help when you're running high boost. That 6.0 block keeps looking better and better for a high boost setup.

-Geoff

 

If you have read some of the publications they had to cork up the engine because of insurance reasons. Just a few mods seems to just uncork them, the power was always there to be had.

Now you are really starting to see people push the envelope with these engines, how long they will last only time will tell but being prepped from the factory makes it a lot easier!!!

Dumping the roots for the screw is a much better mod in the long run. The adiabatic efficiency difference between the two alone makes it a plus, let alone the numbers people are starting to put down with them.

But I also have to agree, I have not seen numbers at the tracks that are impressive for the power at the wheels they are putting out. The lowest I personally have seen have been with two power adders.

 

any factory power adder car car can be made faster easily, look at the GN's, GTP's, WRX, Supras, ect...

The Iron block was not done entirely for durability, but also for cost, the 6 bolt main aluminum block would have no trouble standing up to 600 hp reliable.

With the 03 and the GT's sharing the same block, less parts, lower manufacturing costs, ect....


Ryan.

Ryan.

<small>[ February 03, 2003, 03:56 PM: Message edited by: slow ]</small>

 

With simple bolt-ons on our '03 Cobra, and 15psi of boost, we made 507rwhp/614rwtq.

I haven't 1/4 miled it yet with the current rwhp(local 1/4 mile tracks closed for the season), but I did run it 1/8 mile. Seems to me that the HP does show up well on a timeslip: 7.07 @ 99 w/1.59 60ft. Full weight (3740lbs), ET Streets, pump gas. That should be about a 10.9-11.0 @ 125-127. I'm basing that on our previous best of 7.38 @ 95 and 11.61 @ 121.

 

There is one local to me running 11.2's@126, he dynoed 543rwhp one time, but took off the pully, but ran that 11.2 with 460 something rwhp..

 

You can see how driver makes a difference!!

Damn Rob, nice run. Now thats the lowest I have seen on just boost. Congrats!!

 

Yea, Ford finally did something right. Those cars can handle monster boost. Almost 600RWHP can be made with stock injs and fuel pump. I think the reason why we see so many slow ones is the driver. I've personally took a stock one with my 12.60/113 bolt-on 98Z. A friend of mine has a X-Pipe, cat-back, lightning pulley, and chip. He went 11.7/120 on DRs granny shifting with a 1.90 60ft. He put on a 100shot and ran a 11.26/128 again granny shifting with a 1.89 60ft. Car is full weight, and he isn't a good driver. Car was sprayed statring at the top of 2nd.

 

I saw a 03 go 11.90 at M.I.R. with the litning pully and nittos. I forgot the mph bot it was also about 85 degrees outside.

 

i personally think the new cobras are pretty awesome, but its not even close to the potential of an ls1. i think its great that factory performance is finally raising the standard, instead of always doing cleaner air stuff. But its just sad that ford had to supercharge their car to have it compete at a big boys level. i mean even here in GA at the crappy tracks my friends ls1 m6 with only exhaust did a 13.2 at a bad track, (2.19 60'). and factory the cobra does a 12.96 on street tires. if i spend 35K and bought a blown "muscle car" and got beat by a nearly stock camaro/TA that you can pick-up used for like 15K, i'd be pissed. just my .02 though
but in fords defense, the car is made to take a lot more boost, and this sure beats the 15 second Gt's were used to seeing. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

<small>[ February 03, 2003, 10:06 AM: Message edited by: DJ ]</small>