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Solstice GXP turbo torque curve

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Old Jul 6, 2006 | 11:30 AM
  #1  
Z28x's Avatar
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Solstice GXP turbo torque curve

not much of a curve, more of a flat line, but check it out

How could the curve be so flat? Is there software keeping it under 260tq?

Old Jul 6, 2006 | 11:37 AM
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Re: Solstice GXP turbo torque curve

My 2.0T Audi is rated at 207 torque flat from 1800 up to about 5000 rpm where it finally starts to taper down to 200 at 5100.

Modern day turbo setups seem to be capable of producing some very drivable torque curves.
Old Jul 6, 2006 | 12:06 PM
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Re: Solstice GXP turbo torque curve

Now that is cool!

The GXP should be a fun car to drive
Old Jul 6, 2006 | 12:18 PM
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Re: Solstice GXP turbo torque curve

A turbo I4 making max HP at 5300 RPM... right
Old Jul 6, 2006 | 12:21 PM
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Re: Solstice GXP turbo torque curve

Originally Posted by Chuck!
A turbo I4 making max HP at 5300 RPM... right
Mine peaks at 5100. It's an I4 turbo of the same displacement.

Turbos often lower the peak power RPM of what is mostly, otherwise, the same motor.

The 1.8L I4 n/a in the MX5 miata (back when there was a turbo mazdaspeed varient) reached peak power at 7000 rpm. The turbo version? 6000rpm.
Not to say it couldn't rev further, but that's where peak power was reached.
Old Jul 6, 2006 | 01:17 PM
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Re: Solstice GXP turbo torque curve

Threxx, those 1.8T take to modding pretty well, don't they? Thats what I was getting at.

GM nuetered this motor, it'll be interesting to see how far a couple hundred bucks will go.
Old Jul 6, 2006 | 01:33 PM
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Re: Solstice GXP turbo torque curve

Originally Posted by Chuck!
Threxx, those 1.8T take to modding pretty well, don't they? Thats what I was getting at.
Mine is the 2.0T. A revo tune on 93 octane will boost it from 200hp to 260 and 207 tq to 290tq. Supposedly reliably, but I'll be damned if I'm gonna spent 600 bucks on a program on a car that I'll only be driving for 20k more miles. Then again in a way that could be a blessing so to speak if the potential reliability under the increased boost isn't actually so great- but I'd be afraid it would blow up on me during the lease and I'd end up having to buy this car due to breach of contract and I do NOT want to buy this car.
Old Jul 6, 2006 | 04:08 PM
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Re: Solstice GXP turbo torque curve

Wow, that's pretty sweet.
But yeah with THAT FLAT of a curve, you gotta think the computer is keeping it tamed a little.

Cars with this motor will be hitting 300whp easily.
Old Jul 6, 2006 | 04:23 PM
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Re: Solstice GXP turbo torque curve

That's definitely flat.

But what's the throttle response like? How much power does it make in part throttle conditions? Is it very linear? 260hp out of 2 litres is fairly high strung, it'll interesting to see how well GM handled the compromises.
Old Jul 6, 2006 | 06:44 PM
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Re: Solstice GXP turbo torque curve

Just from that curve it looks like the GXP will have a very tiny turbo like the T25. If it drive like a 2g with a T25 the throttle response with be right there with almost no lag, but it runs out of CFM right away too, thus the pathetic low RPM HP peak. but flat torque curve
I'm sure there will be lots of aftermarket turbos fro them though.
Just wonder if the engine can handle 25psi on a serious turbo like the DSM's
Old Jul 6, 2006 | 09:07 PM
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Re: Solstice GXP turbo torque curve

Pretty nice curve, i too bet its limited do to somthing.

OTOH, my buddy Will who may post in here later, has a 99 SS, hotcammed car, and his curve is almost as flat as that from say 3k-6k.
Old Jul 6, 2006 | 09:32 PM
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Re: Solstice GXP turbo torque curve

If I don't get a Camaro, I plan on getting one of these and putting a gnarlier turbo upgrade.
Old Jul 6, 2006 | 09:58 PM
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Re: Solstice GXP turbo torque curve

SWEET TQ curve. Reemember, the majority of these will NOT be heavily modded, so having a small turbo with very quick response will make for an awesome car off the showroom floor.

Dan
Old Jul 7, 2006 | 01:51 PM
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Re: Solstice GXP turbo torque curve

Originally Posted by jdhommert
Pretty nice curve, i too bet its limited do to somthing.

OTOH, my buddy Will who may post in here later, has a 99 SS, hotcammed car, and his curve is almost as flat as that from say 3k-6k.
Just for you, Jeff

http://img.photobucket.com/albums/v3...99_3/Dyno2.jpg
Old Jul 7, 2006 | 11:15 PM
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Re: Solstice GXP turbo torque curve

I feel bad for the 2.0 S/C Cobalt owners....they still think the LSJ will live on....right....



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