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I was at my typical parking lot swapping stories with other Vette owners telling the usual lies. When the subject of the Z06 for 2007 will be 550hp, 2008 will be 600!! Has anyone heard this rumour for themselves?
 

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I beleive the hp will continually rise as well.

The LS7 has a lot of capability beyond the 505 hp. Not sure if it will be the second or third year but the motor will be increasing its power as the years go on.

Just the nature of the beast I guess to keep people buying the latest and greatest.

I wonder when the Corvette team offers additional transmission technology as an option.

Rumors run 2nd or 3rd year.

Maybe never? Either way this car will be amazing both enthusiasts and the automotive press for years to come.

Going to be hard for any corvette enthusiast to resist opening up their checkbook and buy one thats for sure.
 

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I don't really think there is that much cheap HP left in the LS7, aside from forced induction, either supercharging, turbocharging or adding N0.
It's basically all there as Chevy has done a nice job.

The current LS7:
- Bore is siamesed and is maxed out using dry liners
- heads are basically CNC race heads (See pics thread above)
- valves are siamesed and are as large as possible
- 480 gram Forged Titanium rods
- high lift gun drilled cam
- dry sumped
- forged gun drilled crank

There are still some areas where the LS7 could be improved on:
- add Titanium wrist pins with Casidiam coating to lower weight
- forged pistons
- increase lift & duration of cam
- blueprinted & ported oil pump
- increase oil reservoir capacity/ dry sump from 8 qt to 10 qt
- shave heads to raise CR to 11.5-12:0:1 , and
- shave heads to reduce Combustion Chamber volume from 70 cc.
- polish Combustion Chamber
- 5 angle race prep valve job with back angle flowed valves
- better Titanium Intake valves
- Extrude Hone & Polish Intake port
- Extrude Hone & Polish Exhaust port
- Jesel shaft mount roller rockers with roller tips
- increase from 1.80:1 to 1.85:1 rockers
- better valve springs
- Rev kit
- better push rods
- roller lifters
- 100x90mm oval race Throttle body OR
- Kinsler or Harrop intake manifold with 8 individual port TB's
- Halltech Stinger intake Cobra
- Halltech Stinger Air Filter
- Halltech CAI mod.
- LT headers
- Race merge collectors
- highflow CATs or NO CATs
- Beru Silverstone race Plugs
- Magnecor KV85 race Wires OR
- Nology Capacitive Discharge HD Hot Wires
- Nology HD Grounding Straps
- higher output coils
- blueprinted and high out put water pump
- blueprinted and ported TStat
- racing non-H20 coolant
- LS7 tune
- coatings
 

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I think the pcm holds a lot of opportunity for the ls7.

Just a guess but I would bet there will power up grades from GM with a hotter cam and pcm.

Quite honestly 505 hp and the way this new Z06 is packaged. I'd probably throw an air box on it and enjoy it as it is.

Of course we all say that with each new iteration of Corvette yet it really is awesome right out of the box.

Leave it as it is would be my suggestion. (except a few bolt ons like an air box and ls7 tune.) Probably best to leave the car basically bolt on stock for the first year or so....

Keep that warranty intact would be my suggestion. fwiw

JB
 

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I'm going to guess that there is more in the engine, but the PCM is the weak link here in the package. The hardware is top-notch, and makes me think that there has to be something electronic that is holding it back.

Is it a P2 vs. P4 type performance change? (apologies to the Mac folks.)
 

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DJ,

Have you ever used the Harrop? I was wondering what the MAF solution is, or do you have the replace the ECU and use MAP and IAT?

David
 

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Personally, at 500 hp, 3.7 or less to 60 in 1 gear, and 1/4 miles too quick to be allowed to run at a drag strip, and acceleration at level professional road racing series have restrictions for safety, I would rather further development go into:
  1. Better shocks
  2. Improved steering feel
  3. Better seats
  4. Higher grade interior trim, maybe as an option (like Porsche's natural leather interior.)
David
 

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JBsZ06 said:
The LS7 has a lot of capability beyond the 505 hp.
JB,

Don't forget that while your statement is completely true, it
is also completely false, if you take it in the context of
(Jim adds) ... "keeping it emissions legal".

GM has to contend with pulling 505 net SAE hp out of this
motor, having it not need a "tune up" for 100k+ miles, while
meeting the SULEV emissions requirements, AND avoiding the
dreaded "gas guzzler" tax.

The aftermarket should easily get this motor to 600+hp simply
because they don't HAVE to meet the "100k+ mi w/o tuneup"
requirements nor the CAFE requirements.

A Cam, headers, and freer flowing cats would do it. Although
still not really "legal", they will meet the sniff tests, and if they
don't trip a MIL should also meet the "plug-in" tests.

Jim

PS: Anyone who can get me a memory image of the current
C6 Z06 PCM/ECM, I'd be happy to take a look at it.
 

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My C5R 427 engine is being built now.....goal is 750 BHP. :crazy:

There's potential HP beyond 505 BHP, as Don has stated.

On an LS1 rated at 350 BHP stock, my engine builder got 602 BHP. You can read about it in the August, 2005 edition of GM High Tech Magazine. By the way, the stock crank was used.....it's pretty damn strong :jawdrop:

:usa: :usa: :usa:

:thumb:
 

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Jim,

Right on :yeadog:

But, I can see some future gains on the LS7.....20 HP here, 35 HP there, as new technology rolls along more improvements will be made.....but it might take a couple of years :yeadog:

:coo:
 

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Jim is absolutely right. In addition, higher torques would but additional loads on the clutch, transmission, and rear end, which are also warrantied. I wonder if the tall first gear was used partly to limit torques in the rear end.
 

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David,

Good point!!

In my case everything has been beefed up from the tranny, clutch, flywheel, torque tube bearings and special billet coupler on the drive shaft, beefed up output shaft and 3.90 Motive Racing Gears, etc.....at considerable expense.

Perhaps GM will build a Super Sport Z06 with all the right parts for a price?!

Don't hold your breath :lol:
 

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DJWorm said:
I don't really think there is that much cheap HP left in the LS7, aside from forced induction, either supercharging, turbocharging or adding N0.
It's basically all there as Chevy has done a nice job.

The current LS7:
- Bore is siamesed and is maxed out using dry liners
- heads are basically CNC race heads (See pics thread above)
- valves are siamesed and are as large as possible
- 480 gram Forged Titanium rods
- high lift gun drilled cam
- dry sumped
- forged gun drilled crank

There are still some areas where the LS7 could be improved on:
- add Titanium wrist pins with Casidiam coating to lower weight
- forged pistons
- increase lift & duration of cam
- blueprinted & ported oil pump
- increase oil reservoir capacity/ dry sump from 8 qt to 10 qt
- shave heads to raise CR to 11.5-12:0:1 , and
- shave heads to reduce Combustion Chamber volume from 70 cc.
- polish Combustion Chamber
- 5 angle race prep valve job with back angle flowed valves
- better Titanium Intake valves
- Extrude Hone & Polish Intake port
- Extrude Hone & Polish Exhaust port
- Jesel shaft mount roller rockers with roller tips
- increase from 1.80:1 to 1.85:1 rockers
- better valve springs
- Rev kit
- better push rods
- roller lifters
- 100x90mm oval race Throttle body OR
- Kinsler or Harrop intake manifold with 8 individual port TB's
- Halltech Stinger intake Cobra
- Halltech Stinger Air Filter
- Halltech CAI mod.
- LT headers
- Race merge collectors
- highflow CATs or NO CATs
- Beru Silverstone race Plugs
- Magnecor KV85 race Wires OR
- Nology Capacitive Discharge HD Hot Wires
- Nology HD Grounding Straps
- higher output coils
- blueprinted and high out put water pump
- blueprinted and ported TStat
- racing non-H20 coolant
- LS7 tune
- coatings
Nice spec's DJ but if those pics of the heads you posted on another thread are the finished product, the whole unit has room for improvement!! The CNC marks are better than my AFR's but are far from optimum!! At least there is a good bottom end to start with!!! :thumb:

Ken
 

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I was wondering the same thing after looking at the shots of those heads. I wonder what a little smoothing and polishing might do.

But, I do have to say, we're close to the law of diminishing returns on a street car.
 
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