3.2 KB Mammoth Dyno #s

[HausCobra]

I had my 2004 cobra dyno tuned for 93 octane. Car has all supporting mods including Fore Innovation level 4 return style fuel system, ID 1000 injectors. Car made corrected 601 rwhp and 505 rwtq at 20 pounds at 7k. What are ur thoughts on these numbers? Car made 693 on MS 109 at 22 #s at 6500 and 595 torque standard numbers. The blower was on the car when I purchased and I hope it will work for 93 octane tune. It has 3.5 pulley with Metco underdrive 6.5 crank to get boost down for 93.


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[Bdubbs]

I would think torque will suffer down low. If you never plan on running anything higher than 93, I'd look for a smaller blower. I also wouldn't run 20 lbs on 93. People should really start doing things right. If you want big power, have the right fuel to do so safely.

Bigger isn't always better.

 

[s351]

That's a big blower for pump 93, I think the only way I would run a big blower like that would be on e85 or race fuel that blower needs to be spun hard.

I mean If it makes you happy thats all that matters, but don't be upset if a little 2.3 puts a few lengths on you, Your set up is more of a race application.

 

[ctgreddy]

You have the blower, injectors, fuel system for a good e85 setup why isn't that what you're on? I'm assuming it's not available by you?

20lbs on 93 it must have like no timing in it. My 2.8 mammoth made 19lbs on 93 and made 650whp with 16 degrees of timing.

If e85 isn't an option just sell the blower and get a 2.3 tvs or 2.9 whipple. those should easily make 630-650whp on 93 and have a better midrange than your setup has now.

 

[03' White Snake]

That sounds very low. With my regular 2.8h KB, I made 611hp and 604 tq on 18lbs on 93 and 694hp and 674tq on corn at 20psi. You need to get on corn and spin that blower to 22+ psi to make it shine.

 

[jtkz13]

Yeah I echo these guys, I would go E85 if at all possible. I am making 630/565 on a 2.8H (non mammoth), 20psi and 15* of timing.

I dont think 20psi is TOO much for 93 octane, as mine still makes great power even at only a safe 15*. I do mix in a gallon or two of 110 octane in the hot months for a little cushion.

 

[Bdubbs]

Yeah I echo these guys, I would go E85 if at all possible. I am making 630/565 on a 2.8H (non mammoth), 20psi and 15* of timing.

I dont think 20psi is TOO much for 93 octane, as mine still makes great power even at only a safe 15*. I do mix in a gallon or two of 110 octane in the hot months for a little cushion.

I personally think it's too much. My last tuner and current one would rather stay at 17lbs. Heck I'm only running 1 psi more than you and I'm on e85. You run some 110 during the hot months? You should do it the other way around. Colder temps bring in more hp. Last fall I hit 22 psi because of colder weather.

 

[cj428mach]

I wouldn't run that much boost on 93 but thats just me. Its not worth the risk for the minimal gains.

 

[jtkz13]

I know its on the edge, but its a safe tune with a very safe AFR and only 15* timing. E85 will happen at some point soon.

If it was gonna blow it wouldve, 5k miles at this tune, TONS of WOT and like 20 passes.

 

[Bdubbs]

I know its on the edge, but its a safe tune with a very safe AFR and only 15* timing. E85 will happen at some point soon.

If it was gonna blow it wouldve, 5k miles at this tune, TONS of WOT and like 20 passes.

Not necessarily. One tank of bad gas is all it takes. No one ever tests there 93 octane. Not trying to be an ass, it is your car.

 

[MG0h3]

I know its on the edge, but its a safe tune with a very safe AFR and only 15* timing. E85 will happen at some point soon.

If it was gonna blow it wouldve, 5k miles at this tune, TONS of WOT and like 20 passes.

My 2.9l at 15 psi made 590/540 with 17-19* timing.

Youd probably be better off lowering the boost and adding timing back in.

 

[jtkz13]

Probably, but its just motivating me to go E85 sooner. I cant imagine what a 3" pulley, 20* of timing, and 23psi would be like.

 

[c6zhombre]

Probably, but its just motivating me to go E85 sooner. I cant imagine what a 3" pulley, 20* of timing, and 23psi would be like.

You'll never worry about that pump gas tune again....only use it for emergencies so you might as well keep it REAL safe on boost and timing. All the fun is with the corn tune. I've been running 22psi, 23 deg timing and E85 for years and it's a sad day when I'm forced to run the pump gas for whatever reason (i.e. Like traveling to areas with no E85). My pump gas tune makes 560/550....the E85 tune makes 714/680

 

[HausCobra]

UPDATE made 613 hp 515 tq SAE and 637 hp 535 tq Standard Correction. 17-18* peak tq and 20* peak hp. Gonna bring down timing a little bit to be conservative


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[Zemedici]

Fwiw my lil 2.3 at 17-18lbs makes 620. Id definitely trade the 3.2 for a 2.2/2.3/2.8/2.9 and put some money in your pocket while making more power

 

[HausCobra]

Fwiw my lil 2.3 at 17-18lbs makes 620. Id definitely trade the 3.2 for a 2.2/2.3/2.8/2.9 and put some money in your pocket while making more power

Easier said then done haha. Blower was on car when I purchased with only 100 miles on it. Plenty of power for me for a weekend cruiser. Car will not see the drag strip. Perfect world yeah not blower I would have gone with but couldn't pass on the car with all the work that was already done and 20k miles on the clock


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[03cobra#694]

That blower deserves to be on a all out cammed beast. I'm on the same page as the other guys.

 

[HausCobra]

What am I gonna do. Gonna enjoy and drive the car. Not gonna go buy a different blower spend all that money and when the one on my car is brand new. And trying to sell it or trade somebody that isn't gonna be easy


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[MG0h3]

Id just stay open to a trade with cash on their end. Not as much because youre blower is bad; those numbers arent too far off from a smaller one.

but because you could do just as good with a little more torque and get some cash back!

 

[sicvnum]

Run some better fuel. My 2.6kb made 656 and 632 torque on 17lbs with 100 octane. 3.5 upper and a 4lb lower. Those big blowers love to be spun harder.