Contour Enthusiasts Group Archives Forums General Dyno and Drag Look Quickly - A 13 Second NA Contour

Originally posted by Ronan:

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Not dissing the Cobra (want one,want one) but you've just highlighted that is has 2 extra cylinders and a blower! and its only 1 second quickler down the 1/4! It just hammers home the achievement of Demons car!
That just puts it all in perspective! Congrads again Demon, you must have created a monster.

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Well mmars just needs to learn how to drive his Cobra I ran a 04 Cobra with less mods than him last time out at the track. This guy busted a severely traction limited 12.4@119mph with a 2.2 60'. This was going into a full on 20mph headwind which was sucking out about .2 ET and 3mph in trap. I watched another 03 Cobra roll up to the line and make an amazing pass of ~11.3@125mph. What was different in this 03 Cobra? It had an aftermarket SC, full exhaust, LIVE axle rear, 26" slicks. On the outside the car looked stock except for the drag wheels, front and rear.

I know Demon's car is fast as balls, but the difference between a high 13 at 101mph vs a car pulling traction limited mid 12s@119mph is not even funny. I was side by side with the 04 Cobra till about the 660' because he was all over the place. Once he hooked up, it was like I was standing still.


Dave

Originally posted by livinsvt:

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Originally posted by Ronan:

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Not dissing the Cobra (want one,want one) but you've just highlighted that is has 2 extra cylinders and a blower! and its only 1 second quickler down the 1/4! It just hammers home the achievement of Demons car!
That just puts it all in perspective! Congrads again Demon, you must have created a monster.
Now please go get that sucka dyno'd?

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But the Cobra is stock(I'm guessing) with warranty.

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Nope, look at his sig. It's modded! Geez ur slow mmars J/K.

Originally posted by Dave B:

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Can you guys elaborate on the intake manifold work you guys are doing? I know Demon removed his butterfly valves to somehow gain topend performance. The intake manifold setup I have on my Maxima utilizes the same kind of intake runner tuning with butterfly valves. I actually have a manual override switch to make the valves open at any rpm I want. I've noticed that switching the valves on any earlier that 5000rpms results in a pretty severe loss of lowend power. Take a look at my dyno when I flipped the switch at 4500rpms vs 5100rpms.

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Well the 3L with oval port heads that he's sporting now doesn't have secondaries from the factory. It doesn't need them because of more displacement and tq. A few people have removed them from their 2.5. Makes them a total dog below 3800 though. Their argument is that they never drive down there anyway. They were engineered for a reason. To increase low end.

Originally posted by Dave B:

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Why does the lack of the butterfly valves help the CSVT? Is there a loss of power below 4000rpms, but a gain above because the valves and rod are removed to reduce high rpm power?

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Yes.

Originally posted by incubusjunkie614:

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now imagine how quick you would be if you were supercharged....*hint**hint*

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Sorry to burst your bubble but this project was designed "Specifically" to be the antithesis of the Vortec S/C.


Why is that you ask???

Because I did an entire car upgrade for just the cost of the S/C alone!!!

$1200 Engine (near bullet proof - bullet proof with a accusump!)
$1350 MTX (bullet proof)
$650 Bilstein struts & springs

$3200 total spent for a car that will likely hand any S/C beast it's ass on the track. (Okay so I had some mods to start with but so do most cars when they get a S/C )
Definitely on a road course since the midrange power of the 3L kills any S/C car. Throw in the fact I did LSD, flywheel, struts & springs among other things for the same cost it would not even be close!
Hell my 2.5L was fast on bald stock tires even! Just ask the guys I beat by over 5 seconds a lap.

Originally posted by DemonSVT:

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Originally posted by Swazo:

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Nice, and the first to use SVT induction and cams on mod'd oval port heads I was hoping to be the first I too would like to see your dyno run just to gawk at and drool over

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Nope I was the second.
Jiako was the first (but he used an adapter plate IIRC) and Tom (last engine) the third.
So I guess I was the first to port the heads to match the split LIM. No secondaries of course. I didn't miss them with the 2.5L and the 3L definitely doesn't need them.

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I meant using the SVT cams, didn't Tom use 3L cams? Did Jiako port the heads aswell?
I'll be using SVT cams aswell and I will be porting in the same way. There was no way I was sticking with a hybrid after seeing what Tom put down, and now you just made me feel a whole lot better about the ability of this route in NA form

Another good thing is that you'll be putting the SPEC stage I clutch to a good test.

Originally posted by bnoon:

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What kind of rubber are you running now? Stickier tires make all of the difference...

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225/50 G-Force KDW

They give good grip for a street tire actually.


I have a set of 225/50 Nittos on a set of E0 rims sitting on a shelf in my garage. As hind sight normally is I now wish I had tried them for my first time out. It's quite possible I could have hit the fastest Contour time ever much less best NA time.
The street tires planted 2.2's like it was nothing thanks to all the TQ but those are 2.2's coming from horrible wheel hop and wheel spin.
Now "I doubt the platform would have handled it" but if I had a little more traction sub 2 60' times were there for the taking.

It's bad when your best launch (2.17) comes from walking the car out at idle then shifting to 2nd. The 330' time slowed in comparisson though.