A few things to check if it's riceboy power or
accurate figures. Most numbers are rounded off.
500 hp at the wheels would require an airflow
about 2000 kg/hr. of air into the engine.
500 hp at the wheels would require minimum
of four 650 cc injectors.
500 hp at the wheels would require a Garret T04BB
with T76 trim running at ~30 psi or any other turbo
with equal flow capacity for 75% efficiency.
500 hp at the wheels at 6500 rpm is 540 Nm at the
same rpm. SR20DET peak torque with bolt-on
aftermarket parts is somewhere around 4000 rpm
where 2/3 of max. hp is reasonable to expect
for a daily driven car. 340 hp/4000 rpm is 598 Nm.
So I searched for engines with similar power
output.
Nissan R390 GT1 have a 3495 cc V8 with twin
turbos. 550 hp/6800 rpm and 637 Nm/4400 rpm
Let's say the drivetrain use 10% of the flywheel
power. That give us 495 hp and 573 Nm at the
wheels. This is the car Nissan built for the 24 hour
LeMans race 1998-99. 0-60 mph in 3.9 seconds
and 1/4 mile 11.9 seconds.
An SR20DE (non-turbo) touring car racing engine
makes 320 hp/8500 rpm. This engine can not
be driven on the street as it will die below 4000 rpm.
Last example. Nissan Skyline GT-R Blitz racing car.
2750 cc inline six. 850 hp/9300 rpm and 961 Nm
at 7500 rpm. Let's say the drivetrain use 10% of
the flywheel power on this too. That give us 765 hp
and 865 Nm at the wheels. I dont think this one can
be used as a daily driver by looking at the rpm where
the power is available.
Porsche 911 RS-2, 3600 cc with 462 hp/5700 rpm
and 620 Nm/3500 rpm with 28 psi boost pressure
is not close enough. Reduce the power with 10%
to compare with the others. 416 hp & 558 Nm.
So it's back to the drawing board for Porsche.
Thomas
DemonTSi@aol.com wrote:
> In a message dated 06/04/2001 6:29:48 PM Pacific Daylight Time,
> adfox@iprimus.com.au writes:
>
> > Although not
> > quite as capable of being worked for outright power, the SR20det would be a
> >
>
> Hmm, I'd have to argue with that point.. I've got a few friends putting out
> near 400hp to the wheels on their turbocharged SR20DEs (mind you, these
> started out as high-compression, non-turbo motors!!). This is with completely
> stock internals, and just bolt on upgrades. Folks with mildly-built (i.e.
> forged pistons, but everything else stock) SR20s are putting out around 500hp
> to the wheels. These are all daily driven cars too...still boggles my mind.
>
> \/ /\ /\/
> www.sr20parts.com - updated 5.28.01
> Ares Engineering - coming soon(er or later)
--
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Thomas in Sweden
Nissan Silvia #319
Nissan Silvia #293
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