Can Z28 be Supercharged

[Hennesseyrgv]

I have heard a lot of times that an Ls7 / 7.0 motor cant be or its not good to put a supercharger or procharged due to the motor been a high compression motor.
Is this true!!
But I do see supercharger kits for the Z06 vett.

[Nick S]

I would say the production LS7 is not well suited for a blower. The high compression means you can't run much boost without worrying about detonation. Sure you might be able to supercharge it and it might run well...for a short while before something breaks. So if you want a production LS7 to last...supercharging is probably not your best route to go.

Now if you build the motor appropriately and change out the pistons for lower compression pistons and swap a cam in that is better suited for a blower then the engine would likely live much longer. I'm sure there are other parts that should be changed out for a blower application but I'm not up to speed on what those parts would be.

I'm sure the Z06 corvette supercharger kits are only running somewhere between 5-8 psi.

[Hennesseyrgv]

But when changedd to lower compression. Will the LS7 motor loose the horse power and then gain it back with the blower!!!.
I am really interested on a Z28 but I dont want to feel like I am down grading on horse power. I am used to lots of power.
I know if I want another supercharged camaro why not get a Zl1,. Just the fact that the Z28 WILL BE limited production and its has lots of race components it makes it a nice car to collect.

[LOWDOWN]

There's a reason the LS7 is crafted with hypereutectic pistons: to discourage nitrous and forced induction. Why? Thinner cylinder walls, due to it's larger bore, than the LS3.

Edelbrock's E-Force LS7 blower, a low-pressure system, seems to work well for street use. Turn up the wick, boost-wise, with another system and mayhem may ensue without a VERY precise tune and forged pistons. Want 7.0L AND BIG boost? Try the C5R block, or shop the aftermarket.

Want BIG power from an LS7, on a budget? Naturally aspirated, the engine is well-capable of beyond 600 hp...for le$$ than the price of a blower kit - installed.

[Nick S]

Originally Posted by Hennesseyrgv

But when changedd to lower compression. Will the LS7 motor loose the horse power and then gain it back with the blower!!!.
I am really interested on a Z28 but I dont want to feel like I am down grading on horse power. I am used to lots of power.
I know if I want another supercharged camaro why not get a Zl1,. Just the fact that the Z28 WILL BE limited production and its has lots of race components it makes it a nice car to collect.

Well it seems to me that it's pointless to buy a "Limited Production" car that costs way more than the next model down if you are just going to end up modifying the limited production car to mirror the powertrain of the lower cost model anyhow. Plus unless you are going to track the car 90% of the time that you are driving it you would probably be much happier cruising in a ZL1 that will have creature comforts like a Radio with speakers and A/C. The Z/28 really is a car meant to be driven on the track. I think any prolonged period of time just cruising on the highway and people will soon wish they would have gone with the less expensive ZL1.

But I guess that's the great thing about this county is if you want it you can get. That's your choice and preference in the end.

[Bhobbs]

Can it be? Sure.

Should it be? No and for multiple reasons.

[Hennesseyrgv]

I guess bottom line the Z28 should be left naturally aspired ...... it would be nice to see one supercharged. ...

[Bhobbs]

Originally Posted by Hennesseyrgv

I guess bottom line the Z28 should be left naturally aspired ...... it would be nice to see one supercharged. ...

Why? That defeats the point of the Z/28.

[grocerygetter]

Yah...I would leave a ls7 NA...with a bottle of course for those need to shred moments.

[RLHMARINES]

This is my favorite of all time Z06 that's been given the Lingenfelter treatment, it belongs to a guy who did go by Grasshopper 106 on YouTube but his account has been closed. It is naturally aspirated with the 660 horsepower.

This (as my brother-inlaw likes to say) is what a grown man sounds like, Enjoy!

http://youtu.be/flUFM3LXjno

http://youtu.be/1uGpzMgFUUg

http://youtu.be/47g2_9WxrYM

http://youtu.be/HRImIsfe26g

[Col. Brain]

You can boost a LS7 and making 600whp even 700whp is not out of the question.

Some say you will need pistons, others will claim the sleeves will go first. You have to ask yourself what DO YOU want to do with the car?

If you are going to go nuts building some 1000whp Z/28 you will be much better off starting out with the LS3 or LSA over the LS7.

Hell - cam only LS7s are making 550ish whp!!!!

That is a lot of car on the street

to note - the hypercraptastic pistons with the proper tune have been over 700whp on boost.
A guy over in the corvette forums swapped pistons and hit his Z06 with a 200hp shot of juice and ran high 8s

The LS7 is a fine piece of machinery.

[DGthe3]

Originally Posted by Hennesseyrgv

I have heard a lot of times that an Ls7 / 7.0 motor cant be or its not good to put a supercharger or procharged due to the motor been a high compression motor.
Is this true!!
But I do see supercharger kits for the Z06 vett.

Its one of those things where 'just because you can, doesn't mean you should'

The problem is less the compression ratio (which isn't that high for a naturally aspirated engine) is that when you take a block with 4.4" bore centre, and then make a bunch of 4.125" holes in it (well, actually larger with the liners) you don't have a whole lot of material left over between adjacent cylinders. Thats the main reason why GM based the LSA & LS9 off of the 6.2L LS3 instead of the larger LS7. Can you supercharge is? Sure. Will it self destruct the instant you start it after installing the blower? Probably not. But if big power is your goal, you can go a long ways while staying naturally aspirated that put less stress on the engine. Side benefit: staying naturally aspirated keeps the weight down.

[62nalide]

Originally Posted by Bhobbs

Why? That defeats the point of the Z/28.

x2 I rather keep it NA, if you want boost get a ZL1

[brt3]

To each his own, but I'd never supercharge a Z/28. Mainly because I want the car for track-day usage, and heat is the enemy in that use scenario. I also prefer the sound of the non-blown engine.

To extract more output from the Z/28, I'd suggest a visit to THESE GUYS:

GEN 5 CAMARO Z28
2014- CAMARO Z28 LS7

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600hp*
565ft-lbs
Katech Torquer LS7 camshaft
C5-R timing chain
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Wideband O2 bung
Chassis dyno tuning
Serialized plaque
Price: Call

Stage 2
620hp*
580ft-lbs
Katech Torquer LS7 camshaft
C5-R timing chain
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CNC-ported heads
FAST LSXR 102mm intake manifold
Fuel rail/installation kit
Wideband O2 bung
Chassis dyno tuning
Serialized plaque
Price: Call

Street Attack Camaro Z/28
Katech Street Attack LS7 package
Bore: 4.125”
Stroke: 4.000”
Displacement: 427ci/7.0L
Horsepower: 630
Torque: 565
Redline: 7000RPM
CR: 11.4:1
Block: LS7 aluminum, billet main caps
Crankshaft: 4140 forged steel
Connecting rods: Powdered metal titanium, rebushed with bronze bushing
Pistons: 2618 or 4032 forged aluminum
Camshaft: Torquer LS7 110 or 116LA, high speed lifters, C5-R chain
Cylinder heads: CNC-ported LS7
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Induction: FAST LSXR 102mm
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Dewitts custom aluminum radiator
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AN oil cooler lines
Koolmat Tunnel heat shield
Katech aluminum or carbon fiber valve covers
Powdercoat or show prep paint (aluminum only)
Katech Performance engraved insert (aluminum only)
Katech coil relocation kit
Paint-to-match intake manifold
ARE Stage 1, 2, or 3 dry sump system
FAST LSXR 102mm intake manifold

Track Attack Camaro Z/28
For off-road race vehicles or export outside of the United States only
Katech Track Attack LS7 package
Bore: 4.125”
Stroke: 4.000”
Displacement: 427ci/7.0L
Horsepower: 650
Torque: 570
Redline: 7000RPM
CR: 12.0-14.0:1
Block: RHS aluminum with billet main caps, ARP studs, piston squirters
Crankshaft: 4340 forged steel with ATI damper
Connecting rods: Forged H-beam steel
Pistons: 2618 forged aluminum with DLC-coated pins
Camshaft: GM Stage 3
Cylinder heads: CNC-ported LS7 with bronze valve guides, ARP studs
Valves: LS7 titanium intake, hollow sodium-filled exhaust
Induction: FAST LSXR 102mm
Oiling system: ARE Stage 3 with Katech HCS/HCP (red) pump
Katech billet belt tensioner
Dewitts custom aluminum radiator
Integrated oil-to-water oil cooler
AN oil cooler lines
Katech aluminum or carbon fiber valve covers
Powdercoat or show prep paint (aluminum only)
Katech Performance engraved insert (aluminum only)
Katech coil relocation kit
Paint-to-match intake manifold
ARE Stage 1, 2, or 3 dry sump system, or Dailey 5 stage
FAST LSXR 102mm intake manifold
*assuming intake/exhaust already equipped