Sandbagging on HP...MAYBE
#1
Safety Car
Thread Starter
Sandbagging on HP...MAYBE
Seeing how GM has been somewhat coy regarding certain aspects of the C7 do any of you guys think they may be reserving the real hp numbers? I think it's fair to say that if the car came out rated 480 plus an awful lot of folks would be real happy!
#3
Drifting
I'm very curious if the track mode enables a higher rev limit and associated power or something as well. The SAE paper had a graph showing over 7k, and numerous reports from the bash reported someone mentioned 7k in 4th. Contrasting that is all the official information from GM so far has said and shown 6600rpm. Either there is a pretty big surprise in store for the C7 /LT1 or something was slipped about future product.
As it sits now though, we were promised at least 450,I'm not expecting significantly more than that, but would love to be pleasantly surprised.
As it sits now though, we were promised at least 450,I'm not expecting significantly more than that, but would love to be pleasantly surprised.
Last edited by CPhelps; 05-03-2013 at 09:06 AM.
#5
Safety Car
Thread Starter
Well I could be wrong but with all of the anticipation GM has created not to mention the secretiveness maybe just maybe they will blow everyone's socks off with a big number. No doubt if they did that it would certainly stimulate more buzz and IMO more buyers!
#6
Safety Car
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St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14
well, maybe someone, like me, will take their C7 to their speed shop and have it dynoed. Then real numbers will be available.
Last edited by schilitj; 05-03-2013 at 09:58 AM.
#7
Le Mans Master
It just seems to me that this redesign was not centrally focused around creating more power. I believe the redesign was more about using this power more effectively.
#8
Le Mans Master
Actually, I was say less than the stated 450. If history proves itself on the newer model cars, they usually have less to the rear wheels than what they state. I would estimate 425 or in that area. However with the new design and new materials, what is lacking in HP will be made up in road efficiencies.
#9
Would anyone here mind it if GM purposely underrated the engine? Based on dyno results, the early GTRs were underrated by Nissan. Also, BMW is notorious for underrating their engines. From what I can tell they underrate their engines 10% across the board.
Last edited by OHV4LIFE; 05-03-2013 at 10:22 AM.
#10
Le Mans Master
Actually, I was say less than the stated 450. If history proves itself on the newer model cars, they usually have less to the rear wheels than what they state. I would estimate 425 or in that area. However with the new design and new materials, what is lacking in HP will be made up in road efficiencies.
#11
Melting Slicks
470 to 500.........Actual performance is more important than HP to me
If It will out run a C6 427 ( Awesome car) at 450 HP that's fine with me Dan
If It will out run a C6 427 ( Awesome car) at 450 HP that's fine with me Dan
Last edited by Hemi Dave; 05-03-2013 at 10:02 AM.
#12
Somba master
Well, GM has said they focused on a flat torque curve that makes great torque over a large rev band. Now, given that the hold over 6 speed autobox is only rated to about 435 lb/ft, there will very likely be torque management. So, overall, the numbers may mean rather less than the actual on road performance.
Still hoping for something closer to 475 hp/ 475 tq.
We will know soon enough, and even better, when the first tests in the magazines come out.
Still hoping for something closer to 475 hp/ 475 tq.
We will know soon enough, and even better, when the first tests in the magazines come out.
#13
Safety Car
I think 475 will be the final number. It accomplishes everything it needs to do. It guarantees the C7 base will be significantly faster than the C6 base.
And 475 approaches C6Z06 "competitive" territory.. while still leaving plenty of room for a 525+hp C7Z06 and 650+hp C7ZR1.
And 475 approaches C6Z06 "competitive" territory.. while still leaving plenty of room for a 525+hp C7Z06 and 650+hp C7ZR1.
#14
Le Mans Master
.Jinx
#15
Safety Car
Thread Starter
Thread is off to a good start, lots of excellent posts!
#16
Well, GM has said they focused on a flat torque curve that makes great torque over a large rev band. Now, given that the hold over 6 speed autobox is only rated to about 435 lb/ft, there will very likely be torque management. So, overall, the numbers may mean rather less than the actual on road performance.
Still hoping for something closer to 475 hp/ 475 tq.
We will know soon enough, and even better, when the first tests in the magazines come out.
Still hoping for something closer to 475 hp/ 475 tq.
We will know soon enough, and even better, when the first tests in the magazines come out.
#17
Le Mans Master
Slumpbusters can be fun in private
#18
Race Director
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2021 C6 of the Year Finalist - Modified
My guess ...
465 Advertised w/ NPP
M7 . . 420 RWHP SAE Corrected (DynoJet)
A6 . . 402 RWHP SAE Corrected (DynoJet)
465 Advertised w/ NPP
M7 . . 420 RWHP SAE Corrected (DynoJet)
A6 . . 402 RWHP SAE Corrected (DynoJet)
#19
I think that even if GM knows they can wring something like 500HP out of the LT1, it may be wise to take it easy and start it at 460 or so. Even with all the same components they can dial it down a bit.
That way they can sit back and see if the engine has any unknown issues before really leaning on the thing.
They can then step it up in later years if the engine proves reliable. They have done that with the LS series but with some minor changes in camshafts and such.
That way they can sit back and see if the engine has any unknown issues before really leaning on the thing.
They can then step it up in later years if the engine proves reliable. They have done that with the LS series but with some minor changes in camshafts and such.
#20
Team Owner