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General Motors Performance - Forums, Tuning, Racing, Parts, News, and Motorsports
Published on 10-28-2019 03:43 PM
Part of the problem in the aftermarket is finding companies that truly deliver as promised. Unfortunately, the tuning scene is filled with crooks but also many reputable companies that stand the test of time. ECS Tuning certainly is one that stood the test of time. ...Published on 10-26-2019 03:03 PM
This is an interesting development from TurboSource. Now variable A/R (Aspect Ratio) in a turbocharger is nothing new as that is exactly the idea behind VTG (Variable Turbine Geometry) turbochargers which Porsche is well known to use in production cars. ...Published on 10-25-2019 12:54 PM
We wrote about XDI (Xtreme-DI) fuel injector upgrades for the Gen V direct injected GM small block before. Now we have the exact number the LT4 injectors will support on straight E85 and that number is 1200 rear wheel horsepower as tested by Katech and Lingenfelter. ...Published on 10-24-2019 01:27 PM
Blisteringly quick and fast 1/4 mile time here from a stock internal C7 Corvette ZR1 LT5 in street trim. This means a full weight weight car and technically the 18 inch drag radials are indeed street legal. Not to mention, this car has the ZTK aerodynamic package which generates quite a bit of drag. ...Published on 10-23-2019 03:04 PM
MotorTrend's 2019 Best Driver's Car competition is taking place at Laguna Seca and it is interesting to see the results on a track that is a good mix of technical application and power. The lineup is good but does not have any high performance standouts. ...Published on 10-21-2019 04:01 PM
This was to be expected but it certainly is nice to see. Congratulations to Advanced Modern Performance for pulling off and it seems they did it with the factory TVS2650 supercharger which just goes to show the headroom in that blower. ...Published on 10-21-2019 02:06 PM
MotorTrend, this is what you guys do for a living? Seriously? BoostAddict.com stated for some time now that World Motorsports sets their Mustang Dynamometer to read like a Dynojet or higher. It is not consistent at all. It is somewhat infuriating as it leads to nonsense like this from MotorTrend. ...Published on 10-21-2019 01:02 PM
This is a major win for farmers selling corn who lobbied the Trump administration regarding larger purchases of ethanol. What does this mean for car enthusiasts? It means more ethanol. You will see more ethanol in your gasoline and E15 will see greater adoption. ...Published on 10-19-2019 12:41 PM
The idea of a compressor powered by electricity is nothing new. Mass adoption of a turbo that uses electricity to instantly spin the compressor before having to wait for exhaust gases certainly would be new. That is what Garrett promises with the E-Turbo set to hit the market in 2021. ...Published on 10-18-2019 08:41 AM
The new C8.R is a big deal because for one it is a race car that will translate to the street and it is replacing the highly successful C7.R. Speaking of which, the C7.R is racing in the video below at the Petit Le Mans but you get to see and hear the C8.R get some test laps in. ...Published on 10-17-2019 11:21 AM
The idea of a Formula 1 Grand Prix in Miami is not anything new. It was on again then off again and now it appears it really is happening. The Formula 1 Grand Prix of Miami is expected to take place in 2021. ...Published on 10-17-2019 10:02 AM
Hennessey tuned this ZR1 to 1200+ horsepower and there is no reason to doubt it as they briefly held the LT5 1/4 mile record. Everyone is familiar with the beast that is the Mclaren 720S so how does it look going up against a highly tuned C7 ZR1 LT5? ...Published on 10-15-2019 11:01 AM
Here is the first set of independent test data for the new Corvette although it comes from MotorTrend who is often in bed with manufacturers. The numbers look about right considering Chevy's own internal figures said the car would do 0-60 in 2.9 and a 1/4 mile of 11.3 @ 121. ...Published on 10-11-2019 08:02 PM
One of the (few) good things Car and Driver does these days is the Lightning Lap which is possible thanks to their resources. This year has a good field but it is missing a few notables namely the C8 Corvette, Mustang GT500, and Ferrari 488 Pista. ...Published on 10-10-2019 05:14 PM
It looks like we may have a true 911 GT3 challenger. The recently debuted C8.R Corvette race car points toward a street version and we now know what is under the hood. How does a high revving 5.5 liter flat-plane crank naturally aspirated direct injected V8 sound? ...
Composite connecting rods spreading into the...
Remember back in 2018 when composite...
12-13-2019, 03:14 PM