2020 GT500 at 879rwhp first pulley swap

[Gabe]

Lund is at it playing with their new 2020 GT500.
First pulley swap has it at 879 rwhp
Car already has upgraded injectors, and Lethal race exhaust pipes.

 

[stkjock]

that's on E85 as well from what I saw

 

[JJ427R]

It appears all that power is good for sucking up your gas way faster. Watched this video of the Speed Phenom kid on the track at Button Willow, he burned up a tank of fuel in one 20 minute session. So if it was e85 he'd only make it about half a session on a tank is that correct? That gets to be a pretty expensive track day if you run 5-6 sessions. I usually get 2 sessions per tank running 91 on my Roush and got 2 per tank at Road America on the 2018 PP1 as well.

 

[stkjock]

they just posted 902 whp 2.65" pulley

 

[fdjizm]

Damn, putting down some serious #'s!

 

[Laga]

It appears all that power is good for sucking up your gas way faster. Watched this video of the Speed Phenom kid on the track at Button Willow, he burned up a tank of fuel in one 20 minute session. So if it was e85 he'd only make it about half a session on a tank is that correct? That gets to be a pretty expensive track day if you run 5-6 sessions. I usually get 2 sessions per tank running 91 on my Roush and got 2 per tank at Road America on the 2018 PP1 as well.

If you can afford the car, you can afford the gas.

 

[JJ427R]

If you can afford the car, you can afford the gas.

I get that, but damn that thing is just gulping it up, and the one I mentioned is stock. This Lund tuned one with the larger injectors, I'd like to know the mpg on that just on the street. Best mpg my Roush ever had was about 22, I avg. about 18 and I though that was bad. Think I paid $2.39 for 89 octane on my van a couple days ago here in MN, 91 would probably be $2.60 or so. Assuming the GT500 has a 16 gallon tank, at $2.60 it would cost me roughly $250 dollars in gas for one 6 session track day at BIR. Guess I won't be buying one of those anytime soon.
MPG on stock GT500 is listed at 12 city 18 hwy. Would be about 2.5 mpg on the track.

 

[Gabe]

Seems they stopped with the 2.65 pulley:

"Well....Success! Sort of.. ran into a TCM torque limit of some kind for now (the orange graph is 2.65 pulley and torque reduction happened around 3500 rpm). 2.85 pulley made 879 with a little slip up top. The 2.65 peaked at 902 with a little belt slip (need a shorter belt) and probably would have hit 740-750 torque with no torque limit from the TCM. Once the TCM access is unlocked this should hopefully be remedied! Fuel system still seems to be holding! Probably will need a BAP or pumps changed above this boost level."

 

[Laga]

I get that, but damn that thing is just gulping it up, and the one I mentioned is stock. This Lund tuned one with the larger injectors, I'd like to know the mpg on that just on the street. Best mpg my Roush ever had was about 22, I avg. about 18 and I though that was bad. Think I paid $2.39 for 89 octane on my van a couple days ago here in MN, 91 would probably be $2.60 or so. Assuming the GT500 has a 16 gallon tank, at $2.60 it would cost me roughly $250 dollars in gas for one 6 session track day at BIR. Guess I won't be buying one of those anytime soon.
MPG on stock GT500 is listed at 12 city 18 hwy. Would be about 2.5 mpg on the track.

My Edelbrock in a 2005 on E85 will get 15 mpg on the highway. E85 is about $1 a gallon less than 93 octane which I was running. 87 octane jumped to $2.95 today. E85 was $2.65. 2-3 mpg on the track seams about right.

 

[JJ427R]

My Edelbrock in a 2005 on E85 will get 15 mpg on the highway. E85 is about $1 a gallon less than 93 octane which I was running. 87 octane jumped to $2.95 today. E85 was $2.65. 2-3 mpg on the track seams about right.

I only checked my Roush 1 time at Road America and I got 5 mpg on 93. I can only assume from video and stats above the GT500 would get half of that on 93. E85 would be less than that, so you wouldn't even make it one session on a tank. You'd spend more time driving to the gas station than on track.

 

[Laga]

I only checked my Roush 1 time at Road America and I got 5 mpg on 93. I can only assume from video and stats above the GT500 would get half of that on 93. E85 would be less than that, so you wouldn't even make it one session on a tank. You'd spend more time driving to the gas station than on track.

Blackhawk has gas pumps next to track.

 

[JJ427R]

Blackhawk has gas pumps next to track.

Many tracks have pumps right at the track, but their prices are usually much higher than outside the track, and it's still added time you have to spend fueling. At BIR a couple years ago VP Racing Fuels opened a station literally right outside the gate which is very convenient, you don't even get on a road to get to it. Road America has pumps but it's 105 octane and it was $9.00 a gallon. I drive a couple miles to Elkhart Lake for gas, most others do as well.

I'm considering Blackhawk this year with Northwoods Shelby August 22-23 and pretty sure I'll do Road America again July 4th weekend.
http://www.nwshelbyclub.com/

 

[Laga]

$9.00 a gallon for 105 octane is cheap.
Anyway, if your car is producing 900 RWHP, all that energy has to come from someplace. Usually, copious amounts of fuel.
Do you have any knowledge of the LAPS track day events? They are going to RA twice and Autobahn 9 times in the coming year. I’m less than an hour away from Autobahn.https://lapstrackdays.com/

 

[JJ427R]

$9.00 a gallon for 105 octane is cheap.
Anyway, if your car is producing 900 RWHP, all that energy has to come from someplace. Usually, copious amounts of fuel.
Do you have any knowledge of the LAPS track day events? They are going to RA twice and Autobahn 9 times in the coming year. I’m less than an hour away from Autobahn.https://lapstrackdays.com/

I sent you a pm.

 

[stkjock]

 

[Laga]

Cool!

 

[JJ427R]

Almost to the point of having to put a parachute on it, couple years it may be a factory option!

 

[Rick Simons]

Are they still using the flat-plane crank? Sounds like it.

 

[drive_55_not]

Are they still using the flat-plane crank? Sounds like it.

No, the GT500 uses a standard cross plane crank ...

.

 

[Dino Dino Bambino]

No, the GT500 uses a standard cross plane crank ...

Yup, the same crank used in the 5.2 Aluminator.