Thinking about a built shortblock

[Stymee]

Van Voris is running 16psi

According to his record setting pass

Cars legit but it ain’t no street car

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[aleccesarenriquez]

Ok

Of course I'm talking about turbo boost

Obviously would take a few more psi with a supercharger

 

[80FoxCoupe]

Stock engine traps 162 on 16psi. Got it.

 

[nobgob]

Stock engine traps 162 on 16psi. Got it.

I know, right?

Someone help me with this math. I always thought you double the manifold pressure you roughly double the horsepower? So a stock coyote at 460 hp is about 920 hp on 14.7 psi of boost. So 16 psi would be somewhere around 960 hp at the crank right? So then that would be something like 815 rwhp (going through a th400). So if all that is reasonably accurate, then just 815 rwhp is putting a 3,800 lb car through the traps at 8.2x and 160+ mph? Is my math wrong? I'm just not used to seeing 3,800 lb cars e.t. and mph like that on only 815 rwhp. Seems like it should take a lot more power to do that?

Anyways, if the stock motor is capable of this then there's no reason to go built. Unless it's just a unicorn living on borrowed time.

 

[Stymee]

I know, right? If the stock motor is capable of this then there's no reason to go built. Unless it's a unicorn living on borrowed time.

He has a very smart build, but if u took 10 stock engines it would be interesting to see if they would survive 50 runs and repeated street miles

50 runs isn’t exactly a whole lot, I had 100’s of runs on a mid 10 SEC stock NA build with no failures (LS) and mid 10’s are no where near the STRESS an 8.20 ET puts on a short block

By the way he 8.22 was on 17-18 psi

 

[nobgob]

He has a very smart build, but if u took 10 stock engines it would be interesting to see if they would survive 50 runs and repeated street miles

50 runs isn’t exactly a whole lot, I had 100’s of runs on a mid 10 SEC stock NA build with no failures (LS) and mid 10’s are no where near the STRESS an 8.20 ET puts on a short block

By the way he 8.22 was on 17-18 psi

Thanks for the correction. I'll re-do my math...

So a stock coyote at 460 hp is about 920 hp on 14.7 psi of boost. So 18 psi would be somewhere around 1,020 hp at the crank right? So then that would be something like 870 rwhp (going through a th400). So if all that is reasonably accurate, then just 870 rwhp is putting a 3,800 lb car through the traps at 8.22 and 162 mph? I'm just not used to seeing 3,800 lb cars e.t. and mph like that on only 870 rwhp. Seems like it should take a lot more power to do that.

 

[Stymee]

Bet even through an efficient converter it’s a 25 % loss

So 870RW is very close to 1100

You could also look at his fueling to figure out HP

David Van Voris from his you tube video’s seems like a very nice guy, I would just ask him

 

[80FoxCoupe]

Thanks for the correction. I'll re-do my math...

So a stock coyote at 460 hp is about 920 hp on 14.7 psi of boost. So 18 psi would be somewhere around 1,020 hp at the crank right? So then that would be something like 870 rwhp (going through a th400). So if all that is reasonably accurate, then just 870 rwhp is putting a 3,800 lb car through the traps at 8.22 and 162 mph? I'm just not used to seeing 3,800 lb cars e.t. and mph like that on only 870 rwhp. Seems like it should take a lot more power to do that.

Car is making over 1k whp. Guaranteed.

 

[nobgob]

Bet even through an efficient converter it’s a 25 % loss

So 870RW is very close to 1100

You could also look at his fueling to figure out HP

David Van Voris from him you tube video’s seems like a very nice guy, I would just ask him

I was figuring 1,020 hp at the crank with 15% loss through the trans (typical for a th400).
If the drivetrain loss was even higher, as you say 25%, then the rwhp would be even lower... (1020 x 0.75) = 765 rwhp.
To be at 1,100 rwhp would require 1,300 at the crank with a typical 15% loss through the trans.

I agree with 80FoxCoupe that car has to be making well over 1K at the wheels. Which seems unlikely on only 18 psi and a completely stock motor. Yes, it's a truly bad-ass car.... and yes debatable whether it's a street car anymore (has no overdrive that I'm aware of). Anyways, replicating this performance with a stock motor seems nigh impossible and I can't imagine that engine is long for this world.

 

[gimmie11s]

Car is making over 1k whp. Guaranteed.

Absolutely 100% over 1000.

I saw 18.xx+ psi on the gauge in one of his videos a few months back.. im sure he's running higher boost now.

18 psi is nearing 1100 wheel..

I made 913 on 12-13 psi.

 

[80FoxCoupe]

Either way guys. It's fast!

OP, get u a built engine and send it.

 

[Drsmith33]

Car is making over 1k whp. Guaranteed.

Making very well over 1000whp. I’m right at 900whp with 16psi on my gen 5 Whipple and trapping nowhere near 162 in the quarter. As far as everyone on here saying that a gen3 coyote motor is a ticking time bomb at that power.... you can’t say that when the guy has made multiple 8 second passes and even more 9 second passes with 0 issues. Could the motor go at any point? Yes. Many people blew their motor on stock power and stock tune. That doesn’t justify anything. I myself have made many passes at the power level I’m at and I drive the car very very hard on the street when I see an opening. Calling someone stupid because they didn’t build their motor with their power level is stupid in itself. You have no idea what the motor is capable of and David Von Voris can attest to that. These cars love boost. Good fuel (e85) and a good tuner (Lund) will make these motors last.

 

[Stymee]

A TH400 Is not a 15% loss, no way, more

 

[aleccesarenriquez]

Thanks for the correction. I'll re-do my math...

So a stock coyote at 460 hp is about 920 hp on 14.7 psi of boost. So 18 psi would be somewhere around 1,020 hp at the crank right? So then that would be something like 870 rwhp (going through a th400). So if all that is reasonably accurate, then just 870 rwhp is putting a 3,800 lb car through the traps at 8.22 and 162 mph? I'm just not used to seeing 3,800 lb cars e.t. and mph like that on only 870 rwhp. Seems like it should take a lot more power to do that.

I was using wheel numbers earlier btw
Like 80fox said, definitely over 1k
I would say at 18 psi he’s pretty much for sure over 1100 actually

 

[Stymee]

Making very well about 1kwhp. I’m right at 900whp with 16psi on my gen 5 Whipple and trapping nowhere near 162 in the quarter. As far as everyone on here saying that a gen3 coyote motor is a ticking time bomb at that power.... you can’t say that when the guy has made multiple 8 second passes and even more 9 second passes with 0 issues. Could the motor go at any point? Yes. Many people blew their motor on stock power and stock tune. That doesn’t justify anything. I myself have made many passes at the power level I’m at and I drive the car very very hard on the street when I see an opening. Calling someone stupid because they didn’t build their motor with their power level is stupid in itself. You have no idea what the motor is capable of and David Von Voris can attest to that. These cars love boost. Good fuel (e85) and a good tuner (Lund) will make these motors last.

Making very well over 1whp. I’m right at 900whp with 16psi on my gen 5 Whipple and trapping nowhere near 162 in the quarter. As far as everyone on here saying that a gen3 coyote motor is a ticking time bomb at that power.... you can’t say that when the guy has made multiple 8 second passes and even more 9 second passes with 0 issues. Could the motor go at any point? Yes. Many people blew their motor on stock power and stock tune. That doesn’t justify anything. I myself have made many passes at the power level I’m at and I drive the car very very hard on the street when I see an opening. Calling someone stupid because they didn’t build their motor with their power level is stupid in itself. You have no idea what the motor is capable of and David Von Voris can attest to that. These cars love boost. Good fuel (e85) and a good tuner (Lund) will make these motors last.

I was using wheel numbers earlier btw
Like 80fox said, definitely over 1k
I would say at 18 psi he’s pretty much for sure over 1100 actually

.

Yep

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