termi cobra 552 rwhp?
6th Gear Member
Joined: Dec 2005
Posts: 5,893
From: Florida
When talking about how the suspension it self would handle 100lbs more. It is worse to have more unsprung weight than sprung weight. When tuning suspension. the solid would have more weight under the springs than a irs.
this goes back to motocross. They found out in the early 90s that turning the forks up side down means that the weight of the springs ,oil, valving, housing etc.. would now be above the springs there fore less unsprung weight= better handling. The lighter everything below the springs the better. Not sure if 100 lbs would really matter in our cars unless you are on a pro level. But that is why all motorcycle race bikes now sport upside down forks.
I just wish ford would have put a 8.8 in the cobra or at least made the irs handle better.
this goes back to motocross. They found out in the early 90s that turning the forks up side down means that the weight of the springs ,oil, valving, housing etc.. would now be above the springs there fore less unsprung weight= better handling. The lighter everything below the springs the better. Not sure if 100 lbs would really matter in our cars unless you are on a pro level. But that is why all motorcycle race bikes now sport upside down forks.
I just wish ford would have put a 8.8 in the cobra or at least made the irs handle better.
But if the suspension is setup properly even though the SRA has more pressure on the suspension then the IRS it will still be ok..
The benefit of having the lighter vehicle weight when it's coming to the power to weight ratio... causes more benefit... now, if it's not properly setup; then the suspension tuning would have more issues...
6th Gear Member
Joined: Dec 2005
Posts: 5,893
From: Florida
2nd Gear Member
Joined: Feb 2007
Posts: 329
From:
I have DRIVEN lots of cobras with different setups. SRA, IRS(full built) all that good jazz to be honest they have to be drivent differently. People break crap in the irs because they drive them like a solid axle car. They don't launch like a solid axle car they will break their IRS. I drove mine in the 1/8th with the ported eaton and did 1.5 60' times all night and never had a problem with everything stock in the rear. Its all in the driver. Wheel hop is the problem.
5th Gear Member
Joined: Jun 2007
Posts: 3,748
From: Wheeling, IL
Some of the **** posted here is funny.
OP- Unless your buddy has a ported blower, with a Race tune, he does not have anywhere close to 550+ RWHP. He is a moron as you mentioned earlier.
Dude with the big block motor that wants to race the OP's friend- Go ahead, if he can drive, you will be surprised.
Guys arguing about the IRS. My cobra has a road-race setup. All of the bushings were changed out, I have front and rear Kenny Brown braces and no IRS brace. If you are thinking the durability of the IRS is so weak, that they suck, you are very wrong. Locally, there are guys with KB Cobra's cutting 1.5 60fts at the track with no IRS brace. Nothing. Yes, the SRA is approx. 100 lbs lighter than the IRS. That is a proven fact.
The IRS is just as good as the SRA, and it is awesome at a drag strip, a road course and daily driving. I own an 07 S/C GT as well, and trust me, the SRA daily driving is more rugged. My favorite are rail road tracks. It feels like the Rear end on the SRA is going to rip off.
Back on Topic. OP- Does your friend know the difference between flywheel HP, and RWHP? I hope. Even a Stage 5 Steggy ported blower, with a 2.76 Pulley, and all of the other supporting mods, will barely make over 500 RWHP, depending on the tune. It's all in the tune. Some make 500, others make 520. None have ever made close to 550 RWHP. You should check out SVTPERFORMANCE.COM and ask those guys. They are very knowledgeable about ported blowers and what not.
OP- Unless your buddy has a ported blower, with a Race tune, he does not have anywhere close to 550+ RWHP. He is a moron as you mentioned earlier.
Dude with the big block motor that wants to race the OP's friend- Go ahead, if he can drive, you will be surprised.
Guys arguing about the IRS. My cobra has a road-race setup. All of the bushings were changed out, I have front and rear Kenny Brown braces and no IRS brace. If you are thinking the durability of the IRS is so weak, that they suck, you are very wrong. Locally, there are guys with KB Cobra's cutting 1.5 60fts at the track with no IRS brace. Nothing. Yes, the SRA is approx. 100 lbs lighter than the IRS. That is a proven fact.
The IRS is just as good as the SRA, and it is awesome at a drag strip, a road course and daily driving. I own an 07 S/C GT as well, and trust me, the SRA daily driving is more rugged. My favorite are rail road tracks. It feels like the Rear end on the SRA is going to rip off.
Back on Topic. OP- Does your friend know the difference between flywheel HP, and RWHP? I hope. Even a Stage 5 Steggy ported blower, with a 2.76 Pulley, and all of the other supporting mods, will barely make over 500 RWHP, depending on the tune. It's all in the tune. Some make 500, others make 520. None have ever made close to 550 RWHP. You should check out SVTPERFORMANCE.COM and ask those guys. They are very knowledgeable about ported blowers and what not.
