you can make a dyno read whatever you want. some read higher some read lower no matter if it is a dynojet or mustang dyno or whatever. i dont see that being the normal ratings we will see on the GS
Location: In the woods, searching for my thrown putter....
Quote:
Originally Posted by AlphaBravo
Can someone please explain to me how the results shown in that video are interpreted?
It's a simple graph. Horsepower at the rear wheels is shown at different RPM's. X being the RPM and Y being horsepower. The max horsepower is shown at the top of the graph @ 394.XX.
Several LS3's have dynoed in the low 390's at the wheels.
Katech will tell you that EVERY LS-7 they tested on their engine dyno was within a couple of HP of each other. I would expect the same with the Wixom-built LS-3s.
aww... come on... that motor was built early tuesday morning by 4 little old ladies who had just the right amount of coffee, had just finished going potty..and were fired up to do their best...........
Have a look at the video. Are they under rating the hand built LS3 engines? Didn't Chevy under rate the C5 Z06 by about 20 HP?
No and No. And there is currently a lot of excitement (read hype) about the Grand Sport, amongst the hype is that it is "underrated" power wise.
It is right in line with the rest of the LS3 equipped C6 Vettes if one wishes to compare chassis dynographs.
Quote:
Originally Posted by 01whtss
you can make a dyno read whatever you want. some read higher some read lower no matter if it is a dynojet or mustang dyno or whatever. i dont see that being the normal ratings we will see on the GS
I think your dyno above shows 394.27 peak rear wheel horsepower.
Hopefully the following will put to rest, some of the myth about the "hand built" "Dry Sump equipped" LS3s for the Grand Sports being "underrated" and more powerful than the other LS3 engines.
There is no indication that the LS3 engine in the Grand Sport is any more powerful than the LS3 engines in any other LS3 equipped C6.
So do only the manual GS's w/dry sump get the hotter cam? Automatic GS's don't have a dry sump and I would guess get the "weaker" cam with all the other 2008-2010 LS3's
Boy I thought LS2 guys had it bad when the LS3 was introduced.....but now you have "cammed" LS3 GS's (only in manual cars w/dry sump option) from factory.
So do only the manual GS's w/dry sump get the hotter cam? Automatic GS's don't have a dry sump and I would guess get the "weaker" cam with all the other 2008-2010 LS3's
Boy I thought LS2 guys had it bad when the LS3 was introduced.....but now you have "cammed" LS3 GS's (only in manual cars w/dry sump option) from factory.
Often times when something new comes out, there will be a lot of exaggeration and hype surrounding it, due to it being "new".
What we are seeing here with the Grand Sport, is no different.
Already we have heard tales of "hotter cams", dry sumps adding 20-30 horsepower, "cold air intakes/vent in the front fascia" adding horsepower, "being hand built" adding horsepower, lots of myths. All rooted in natural excitement and resulting hype.
But really nothing indicating that the car makes any more power than any other LS3 based Vette.
Where is the "hotter cam" talk coming from? Was there a press release or something?
The hotter cam claim is from the same idiots that are claiming 30HP from a dry sump,better acceleration from different gears, and "more" HP from a "factory" CAI and "hand assembly". NONE of these give more HP except in the posters minds. The cam, gears,and factory CAI don't exist and the "hand assembled" only means that one person assembled the motor instead of a number of people on an assembly line. There are no special balanced or "picked" parts for the Wixom LS#'s.
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GS LS3 under rated?
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