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Video: 94 Mark VIII vs 97 Park Ave Ultra

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Posted by: MediumD

Well I got a camera, so I figured I'd race my friend in his 97 Park Ave Ultra and record it. His car is 100% stock. Mine just has the mufflers and intake resonators removed, and some AR94 plugs for nitrous but it was agreed I wouldn't spray this time. It was also agreed the camera guy would be in my car and that I had a full tank.

Without the camera guy it was dead even until we shifted at which point I walked him pretty good. Keep in mind we're racing at 5500' ASL, and up a hill.

Anyway watch what happens when the instant torque of a blower meets the high end of the dohc 4.6:

http://www.500caddy.us/vids/MVP.wmv

Posted by: Dern Humpus

Ive always liked the supercharged buicks. Much more sleeperish than the Ponticrap.

Posted by: 04SSHD

I would take the GTP over the buick...

Posted by: MarkVIII93

your whip is slow man.

Posted by: NYC LS8

Was that a video of a Sunday night cruise or a drag race?

Posted by: 94m5

Quote:

Originally Posted by NYC LSC

Was that a video of a Sunday night cruise or a drag race?

LOL!!!!

Posted by: Frogman

lmao. zoing!

Posted by: Hotthedd

Quote:

Originally Posted by MarkVIII93

your whip is slow man.

I cant stop laughing at this

Posted by: vr4

wow that supercharger is quiet. maybe i should make a vid of my own. hahahahhaa

Posted by: Black87LSC

I've been in a Park Ave Ultra... They are def not to be taken lightly with a stock car. You could verrry well get owned by.....GRANDMA!!!

Posted by: MediumD

Up a hill a mile over sea level, morons.

Posted by: Frogman

Quote:

Originally Posted by vr4

wow that supercharger is quiet. maybe i should make a vid of my own. hahahahhaa

M90 Eatons are quiet. You've been hearing one too many Autorotor blowers.

Posted by: 98LSC32V

The Buick has the advantage since it's blown and it's high elevation. Those cars have a lot of torque but no top end stock. With a pulley and some bolt ons they can be fast though...

Posted by: 94m5

I live over a mile above sea level as well man. So I know what your talking about. BUT, your also talking with some guys who do have a bit faster cars than that.

SOOOOOO.....it does seem a bit porky to some.

No big deal.

Mike

Posted by: MediumD

It's stock so of course it's not gonna be the quickest thing on the road...

And if you think the Park Ave blower is quiet now you should've heard it with the engine cover on it, well actually you couldn't hear it at all.

But as for the people with their uberfast cars I'd love to invite them to come up and race my Cad500 powered Apollo when the track opens up.

Posted by: 94m5

Quote:

Originally Posted by MediumD

It's stock so of course it's not gonna be the quickest thing on the road...

And if you think the Park Ave blower is quiet now you should've heard it with the engine cover on it, well actually you couldn't hear it at all.

But as for the people with their uberfast cars I'd love to invite them to come up and race my Cad500 powered Apollo when the track opens up.

Let me finish my Stroker Terminator/T56 swap and I'll be there.

Posted by: segxr7

Quote:

Originally Posted by 94m5

I live over a mile above sea level as well man. So I know what your talking about. BUT, your also talking with some guys who do have a bit faster cars than that.

Keep in mind the Buick is basically unaffected by altitude. It's going to pressurize the intake air to 10 psi (or whatever) whether it's at sea level or 5500 feet above. Our naturally-aspirated engines just have to make do with whatever the atmospheric pressure happens to be.

Posted by: vr4

Quote:

Originally Posted by segxr7

not true. i saw this myslef with turbo cars and a manual boost controller. 10 psi at 3000 feet worked out to 12 psi at sea level. the blower will still pressurize the intake but it is lower because its being fed lower density air to begin with.

Posted by: turborich

Quote:

Originally Posted by MediumD

Up a hill a mile over sea level, morons.

Nice run, still cool to watch!

Posted by: segxr7

Quote:

Originally Posted by vr4

If the turbo is small and you crank up the boost to the point that it's maxed out at sea level, then you're right, you won't get that same level at higher elevations. It just can't work any harder to supply that additional boost. It's kinda if you were to raise your speed limiter from 130 to 200 mph-- it doesn't mean the car will actually hit 200.

In the case of stock-ish boost levels, the turbo/supercharger is almost always capable of delivering full boost regardless of altitude. It just ends up bleeding off more air at lower altitudes.

Posted by: vr4

Quote:

Originally Posted by segxr7

this was a B16G on a 1G dsm. i wont argue with your theories since i saw it myself on my friends car AND my own VR4 when i went to the crater (10k ft) 13 psi at sea level. 9.6 at the crater. dont be telling me my turbos were too small. they were capable of holding 23 psi to redline on that car.

Posted by: segxr7

Well I can't comment on your specific setup. But I owned a turbo Thunderbird for 3 years, and it had a manual boost controller set to 17 psi. It got 17 psi at just above sea level, and it got 17 psi at 5000+ feet.

Obviously something was different in your experiences, but *generally* speaking, a super/turbocharger is capable of making far more boost than is actually used. Manual boost controllers and wastegate actuators both almost always use spring-loaded valves that the intake air forces open at a given pressure. The spring tension doesn't change with altitude, so it takes the same air pressure to push the valve open no matter where you are.

Posted by: chickenviii

new to the sc game (MR2, stop laughing lol) dont know sh*t so im just throwing this out there, but vr4 said he droped ...... psi at 10k ft and segxr7 said no diff in elev/psi at 5k ft, maby vr4 noticed the drop due to twice the elev?

segxr7, turbo? v6, v8, sohc, or dohc?

Posted by: vr4

Quote:

Originally Posted by chickenviii

new to the sc game (MR2, stop laughing lol) dont know sh*t so im just throwing this out there, but vr4 said he droped ...... psi at 10k ft and segxr7 said no diff in elev/psi at 5k ft, maby vr4 noticed the drop due to twice the elev?

segxr7, turbo? v6, v8, sohc, or dohc?

im thinking turbo 4 from back in the day.

for the setups i referenced. DSM, B16g, 550s, AFC, ITC, full supporting mods and a joeP MBC.

vr4...DR650s (modified stock turbos), sbc-id, stillen downpipe, no cats.

Posted by: kustomizingkid

I watched a race between a supercharged Rivera and a 96 Mark VIII. The Rivera had the Mark off the line but the Rivera got passed right around 65-70 mph (I was in the Rivera) and the Mark pulled away from there. It was really a lot closer than I would have thought.