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24,000 blower rpm at the shift point. 3.22 pulley ratio
I hate it when smart ppl give you the answer without writing it. Makes us stupid people hungry for info. Hahah

That’s a killer result non the less Matt. I don’t think my sphincter could handle 160+
 

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I hate it when smart ppl give you the answer without writing it. Makes us stupid people hungry for info. Hahah

That’s a killer result non the less Matt. I don’t think my sphincter could handle 160+
I’d imagine it’d be like the half mile and mile cars. If the setup is dialed in, it should feel pretty uneventful. That’s why our one and done for a little more power turns into built aftermarket block, big heads, WAY more boost with a 200 shot to carry out the top end 3 years after finishing the one and done stage. Hahahaha

I feel like road racing/AutoX May be the only motorsports for cars where you’re not treating your car like heroin and keep chasing that feeling the first time you felt 750+whp with traction.


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24,000 blower rpm at the shift point. 3.22 pulley ratio
And late last night, when I read your answer above, I thought I was going to have to resort to bribery..;)

So I am going to assume that the engine rpm is ~7500.

Quickly calculating the piston speed & depression across the
intake valve, I am thinking this is a pretty good 'Roots Blower',
as it is adding sufficient 'Mass Flow / Density', to make up for
the 'insufficient' piston speed 'required' to make that kind of NA HP.

I am 'Guessing' that the fwHP is as high as ~1125.
Pretty much sure it is making 'Over' 980 fwHP.

But don't really have sufficient info, or time to go through
all the required calculations today.

Again, just running some general numbers on my
Hand Held Calculator;

The cylinder pressures are very, very high at the
boost level they must be using.

So fuel and tuning are being held in check, I would think. . .

Take care Matt!

Cheers,
Bruce
 
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[QUOTE="Rubber Duck, post: 2509300, member: 1961"

The cylinder pressures are very, very high at the
boost level they must be using.

[/QUOTE]
He said 23psi I think. Which is for sure high for a roots blower.
 

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[QUOTE="Rubber Duck, post: 2509300, member: 1961"

The cylinder pressures are very, very high at the
boost level they must be using.
He said 23psi I think. Which is for sure high for a roots blower.
[/QUOTE]

Yes, when calculating the actual 'Cylinder Pressures' one of
the variables would be the 23 psi.

The higher the barometer, the higher the static compression
ratio, the higher will be the cylinder pressures.

Makes more HP, but also requires better fuel. . .

Take care Subie..lol

Cheers,
Bruce
 

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The car is running Ignite 114 and also has individual cylinder and spark tuning. This is not a street car that sees the track twice a year. This is a race car that is docile enough to be street driven without issue. It just happens that the engine combo is very basic and shows the potential of a combo like this in a properly set up car. Given the weight, trap speed and setup I'm sure it is making over 1100fwhp. ID1300x still holding on...
 

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The car is running Ignite 114 and also has individual cylinder and spark tuning. This is not a street car that sees the track twice a year. This is a race car that is docile enough to be street driven without issue. It just happens that the engine combo is very basic and shows the potential of a combo like this in a properly set up car. Given the weight, trap speed and setup I'm sure it is making over 1100fwhp. ID1300x still holding on...
You wrote:
"I'm sure it is making over 1100fwhp. ID1300x still holding on"
That info does tell one a lot..lol

Given the boost levels these 2650's are holding,
and assuming a reasonable efficiency / mass flow
recovery system, these blowers should be capable
of +1100 fwHP (JMHO)

The larger the engine volume, and the more ideal
the cylinder head and camshaft combo, matched
with the correct engine rpm / piston speed, as well
as quality fuel and proper tuning, I am convinced
they are good for +1100 fwHP.

Let's look at this from another perspective;
Stock heads, small cam, 6000 rpm shift points,
91 Octane, ain't going to make it..:mad:

Cheers
 

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Higher delta pressure ftw!!
 

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You wrote:
"I'm sure it is making over 1100fwhp. ID1300x still holding on"
That info does tell one a lot..lol
I would not expect those injectors to hold on at this level with most peoples setups but the fuel system on this car has a lot of pump and high base pressure before boost reference.
Very possibly your correct. . .
But to me it also means the engine is most likely an efficient engine.

Sometimes we get all the squares parts, into the square holes,
and the round ones, into the round holes also..lol

Cheers
 
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