The 2011+ Mustang Thread

[1bad65]

Originally Posted by KungFuHamster

also, i think the GT is meant to be run on 87 octane (like the "old" 3valves) which is why the dealer would add it to the car.

I thought this too.

What octane is recommended for the Camaro SS?

[UT-Engineer]

Lookin forward to your results, thx for the post!
Nice cars BTW! All you need is an Orange Challenger SRT8 and youll have all 3 muscle cars

[mrray13]

Originally Posted by Sax1031

The Mustang has the advantage on paper.

Nearly identical torque and more power, of course when compared to weight.

Lol, we'll agree to kinda disagree and see what the car runs! I still think because the Camaro carries it power advantage throughout the curve, especially the torque, it should make up for the weight.

In short, the cars, IMHO, will be within a tenth or two of each other. Fall asleep at the line, miss a shift, spin too much, the other guy wins!

[wbt]

Originally Posted by KungFuHamster

awesome. this is what i think everyone is looking for....true apples to apples comparisons.

also, i think the GT is meant to be run on 87 octane (like the "old" 3valves) which is why the dealer would add it to the car. but like you said, it should pick up a few hp with the 93.

im looking forward to seeing what you guys come out with!

11:1 compression ratio on the Mustang would equal 93 octane recommended. The 4.6 had a much lower CR hence the 87 recommended.

Both the Camaro and Mustang will run on 87, just not going to get optimal power as timing is retarded.

[alab32]

Originally Posted by 1bad65

I thought this too.

What octane is recommended for the Camaro SS?

I am pretty sure it is 91+

[IPSjeff]

Originally Posted by UT-Enginner

Nice cars BTW! All you need is an Orange Challenger SRT8 and youll have all 3 muscle cars

I can add one in there if you want
Jeff

[IPSjeff]

Originally Posted by KungFuHamster

also, i think the GT is meant to be run on 87 octane (like the "old" 3valves) which is why the dealer would add it to the car. but like you said, it should pick up a few hp with the 93.

im looking forward to seeing what you guys come out with!

The dealer says the 412hp rating is based on 91-octane but the car "Can run" on 87-octane safely but at less power. Makes sense due to the higher compression. How much less we will soon find out
Jeff

[Black GT]

Should be intresting, good luck.

[Maurdib]

By the pictures they appear to be the same size, is the IRS causing the majority of the weight diff?

[Bob Cosby]

Nice info. Based on info from other forums, going from 87 to 93 octane *should* net about 10 RWHP. That would put the GT around 370-375 RWHP, which seems to be about average for a new 5.0.

For drag racing, pay a lot more attention to the HP curve than the torque curve. You spend virtually no time at all under 4000 rpm (4500 for the 5.0), and thus the power down there is simply irrelevant. And so that I don't start a HP vs Torque war, I will remind all that HP = torque * rpm ( divided by 5252, if you wish to get technical).

That said, the LS3 does have a nicer HP curve, given that the 5.0 has its nuts cut off (so to speak) by a rev limiter that begins to kill it only 250 rpm above peak power.

[PoorMansCamaro]

Gonna be different drivers?

[1bad65]

Originally Posted by Bob Cosby

That said, the LS3 does have a nicer HP curve, given that the 5.0 has its nuts cut off (so to speak) by a rev limiter that begins to kill it only 250 rpm above peak power.

That should be able to be fixed with a tune.

[Viral]

I didn't see this mentioned, but these dyno pulls were done with the ss in 4th and the gt in 5th, is that correct? Isn't that 1:1 for each car?

[IPSjeff]

Originally Posted by Viral

I didn't see this mentioned, but these dyno pulls were done with the ss in 4th and the gt in 5th, is that correct? Isn't that 1:1 for each car?

Yes they were. We were going to a 4th-gear pull in the Mustang for giggles but we will save that for when there is better gas in the car.
Jeff