2013 gt500 650hp running 15psi???

[casper sc/1ss/rs]

i dont know if there is a thread like this or not i wasnt really keeping up with the gt500 but i seen i magazine article this morning about the 2013 gt500 and said what the heck im going to read this to see what the big deal is,

about half way through they started talking about the specs and something blew my mind and i double looked and then triple looked, it said that the 650hp beast is running 15 psi?? no way?really? that is crazy numbers imo they were also talking about the zl1 was no match at all for this beast, i think i read on some article somewere that the zl1 was only running 6or7 psi and makeing 580hp. IF ford is really running 15psi imo ford hasent accomplished anything in my book but how to run a lot of boost to get the numbers they want! did gm know this and is that why they done so much to get 580hp on low boost so when the people buy the zl1 a simple pulley change and a tune and byby gt500?

like i said i havent been keeping up with these two cars that much so my facts are not facts they are questions so if im totally off course let me know the real specs

also in the article they were compareing the gt500 to the zr1 vette because it has bigger numbers the zr1 is not just numbers there is a LOT more to the zr1 as everybody knows imo that is a joke more hp or not!!

[evolve]

It was 650 at 6250rpm, with an "overrev" capability that will take it to 7k rpm with 670hp. 15psi will make the 670hp btw. Another thing, when we swap blowers (we ALL know this will happen) and start making real power, what happens to each car then? See where this is going? ZL1=AWESOME at the track while the GT500=AWESOME at the strip.

[casper sc/1ss/rs]

so they are running 15psi?

[evolve]

670hp @15psi, yes.

[casper sc/1ss/rs]

dang thats a lot of boost for a showroom car

so what is the zl1 running?

[evolve]

Originally Posted by casper sc/1ss/rs

dang thats a lot of boost for a showroom car

so what is the zl1 running?

Not really. 15psi??? lol. That engine can handle ~20-21psi with 93 octane. Don't know what the ZL1 is running. Does it really matter how much boost either car is running? I mean, it can be looked at either way. On one side you can say Ford upped the boost to get 670hp. On the other you can say the ZL1 makes 580hp on "xx" psi. Who cares?

[SRT8Tech]

The LSA CTS-V is running 8 PSI stock. +/- 1 pound. I guess the ZL1 would be making the same. All depends on the induction and exhaust the ZL1 has compared to the CTS-V.

[8cd03gro]

Originally Posted by casper sc/1ss/rs

dang thats a lot of boost for a showroom car

so what is the zl1 running?

The reciprocating assembly is forged, so 15psi isn't all that crazy. My car runs 22psi with cast hypereutectic pistons. 15psi on one engine does not equal 15psi on another. The 5.8 is probably running lower compression than the LSA and with forged internals can dance the fine line of detonation more safely. It's very, very unlikely that the zl1 with bolt ons will put down nearly the same power you'll see out of a 5.8 with bolt ons.

[casper sc/1ss/rs]

Originally Posted by SRT8Tech

The LSA CTS-V is running 8 PSI stock. +/- 1 pound. I guess the ZL1 would be making the same. All depends on the induction and exhaust the ZL1 has compared to the CTS-V.

thanks thats all i was looking for

Originally Posted by 8cd03gro

The reciprocating assembly is forged, so 15psi isn't all that crazy. My car runs 22psi with cast hypereutectic pistons. 15psi on one engine does not equal 15psi on another. The 5.8 is probably running lower compression than the LSA and with forged internals can dance the fine line of detonation more safely. It's very, very unlikely that the zl1 with bolt ons will put down nearly the same power you'll see out of a 5.8 with bolt ons.

i know 15psi isnt all that crazy on certain builds it just cought me off gaurd on a bone stock vehicle to be running 15psi but i see what you are saying

[BigDan]

Originally Posted by casper sc/1ss/rs

thanks thats all i was looking for

i know 15psi isnt all that crazy on certain builds it just cought me off gaurd on a bone stock vehicle to be running 15psi but i see what you are saying

Quite a few cars/ trucks are pushing around 15psi right off the show room floor and some of them like the 14 psi WRX's dont even have forged internals. The GT500 has a hand built forged 5.8L with a larger 2.3L TVS supercharger and the older 5.4 stock bottom ends can easily be taken to 21psi+ 1,000hp and 8 second 1/4's where as the LSA is stuck at low boost due to its fragile design and hypereutectic pistons. They are 2 completely different types of engines especially when you consider the 5.8L's ability to make 650hp at 6,250rpm and 670hp at 7,000rpm, its gonna pull like an exotic on the top end. The LS9 is a better comparison because its hand built and forged high revving engine can handle the addition boost and abuse a larger twin screw blower like a 3.4L Whipple or 3.6L Kenne Bell. If they would of put the LS9 in the ZL1 and the 2013 GT500 never was released I would seriously be looking to find a dealer to take my 2011 GT500 on trade.

I'm now just thinking about waiting to see what the new gen 2015 GT500 will be, hopefully with IRS, Ti-VCT, DI, e85 before I get a archaic 13-14.

[GMRULZ]

Unfortuantely, you will not be running 15psi on a LSA engine w/ out race gas, meth or something, maybe a LS9, but not a LSA, However I think the LSA could do 11-12psi safely on 93 and would put down similar numbers to a stock 2013 5.8 GT-500, larger displacement makes up the diff in 3lbs of boost. However, thats where you stop and the GT-500 guys w/ the forged internals can go to 22lbs if they want... I do think an auto ZL-1 running 12lbs of boost, exhaust and a nice stall converter, sticky tires would give a modded 22lb boosted 2013GT-500 a run for its money on the dragstrip.

[motorhead]

Hell my ecoboost f150 runs at 13PSI. What's PSI matter anyways when the engine is designed to run under those conditions.

[newmoon]

[QUOTE=BigDan;4334950]Quite a few cars/ trucks are pushing around 15psi right off the show room floor and some of them like the 14 psi WRX's dont even have forged internals. The GT500 has a hand built forged 5.8L with a larger 2.3L TVS supercharger and the older 5.4 stock bottom ends can easily be taken to 21psi+ 1,000hp and 8 second 1/4's where as the LSA is stuck at low boost due to its fragile design and hypereutectic pistons. They are 2 completely different types of engines especially when you consider the 5.8L's ability to make 650hp at 6,250rpm and 670hp at 7,000rpm, its gonna pull like an exotic on the top end. The LS9 is a better comparison because its hand built and forged high revving engine can handle the addition boost and abuse a larger twin screw blower like a 3.4L Whipple or 3.6L Kenne Bell. If they would of put the LS9 in the ZL1 and the 2013 GT500 never was released I would seriously be looking to find a dealer to take my 2011 GT500 on trade.


15 PSI should not be a problem with the GT500 motor as many of the older models and the 03/04 Cobras are running that boost level, considering it is beginning at that level though I do not think there is a whole lot to gain by upping the boost and the IATs. THe car should have 560-570 at the wheels which is plenty stout.

The problem for it is the ZL1s may have a superior launch control and an automatic version bone stock may give the higher hp GT500 more than it can handle on the 1/4. We see this problem all the time with the 500s in my area, they can not hook until 3rd gear on stock rubber and by then they are playing catch-up and running mid to high 12s. Now you are adding over a 100hp and 50 lbs of torque, to a manual car with limited rubber on the ground. Now Ford says they have solved this problem, we shall see. We do know thay Chevy knows how to get it done as ZR1s running low 11s to high 10s on bone stock rubber. Should be interesting!!

[sasquash1984]

I think it's amazing how when back in 07 the shebly had 500 then went to 550 now 650 at the crank of course.