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Domestic Car Performance - Forums, Tuning, Racing, Parts, News, and Motorsports
Published on 04-19-2019 05:44 PM
Ecoboost 2.3 liter inline-4 fans have some upgraded HPFP (high pressure fuel pump) options courtesy of Xtreme-DI. There are two pumps, the XDI-HPFP35 and the XDI-HPFP60. The HPFP35 is in stock and shipping for the Focus RS. ...Published on 04-18-2019 07:03 PM
Finally we are getting some ECU tuned C7 Chevrolet Corvette ZR1 dyno numbers. HP Tuners is going to make a killing exclusively having the only ECU crack solution for now. Yes, there is plenty to pick up on the ZR1 and the cars are making monster power. ...Published on 04-15-2019 07:53 PM
The Ecoboost 2.3 liter four-cylinder in the base Mustang and the Ford Focus RS are not the same. Actually, the Mustang's Ecoboost is quite weak. Just look at at a dyno and the stock torque curve. The powerband is ugly to put it mildly. ...Published on 04-13-2019 11:22 PM
HP Tuners is advertising the C7 Corvette ZR1 LT5 ECU as cracked and tuneable. They also offer an unlocking service. Houston House of Power posted what it would cost to tune a ZR1 and looking at the invoice here the price is $5,206.02. ...Published on 04-11-2019 05:31 PM
You would think 6.2 liters of displacement and a 2.4 liter twin screw blower would be enough to run impressive times but this owner opted for a second power adder. It is hard to deny the results as the 9.039 @ 154.50 1/4 mile sprint is a new Charger Hellcat record. ...Published on 04-10-2019 11:06 PM
If you were wondering how much displacement GM has to play with in their Gen V V8 blocks, the answer is plenty. They created a new L8T V8 with the same bore as the 6.2 liter LT motors but with a stroke increase of 98mm. ...Published on 04-10-2019 04:05 PM
As you know the Hellcat Challenger Redeye is essentially a Demon Light. It is very cool FCA gave it the green light and frankly it is a much better value than the Demon which let's face it was built mostly for marketing but it did quite well in that respect. ...Published on 04-09-2019 11:02 PM
We all saw the C7 Corvette ZR1 testing on the Nurburgring but GM never released an official laptime. Maybe they did not hit their target or they just wanted internal testing numbers but their former test driver Jim Mero kept track of his laptimes and released them. ...Published on 04-09-2019 08:08 PM
How cool would a Hellcat powered Jeep Wrangler be? The good news, it fits. It fits 'like a glove' according to Jeep. The even better news is that Jeep themselves produced several Wranglers with Hellcat motors under the hood for various shows. ...Published on 04-09-2019 12:32 AM
Quick KIA's? Yep. It just goes to show in the turbo era anything can be made fast in a straight line. The KIA Stinger GT with its 3.3 liter twin turbo V6, 8-speed automatic, and optional all wheel drive can certainly surprise especially once tuned. ...Published on 04-08-2019 10:23 PM
Advanced Fuel Dynamics produces the ProFlex Command E85 flex fuel system. It is pretty trick with how it integrates a mobile phone app which tells you your ethanol % and the system adjusts on the fly accordingly. ...Published on 04-08-2019 08:02 PM
The Eaton TVS2650 just continues to impress. Speed Engineering was able to top 1000 rear wheel horsepower on their Mustang dyno with the big blower on a stock internal LT4 V8. This was done with direct injection but methanol is helping as well. ...Published on 04-05-2019 04:02 PM
Finally after numerous teasers and an extensive waiting period Magnuson released their TVS2650 supercharger kit for GM LS3 and LSA engine applications. This will likely be a popular upgrade as the TVS2650 is proving to be an incredible powerful and efficient blower. ...Published on 04-03-2019 02:52 PM
Stretching out a platform a bit or profit is one thing but this sounds absurdly long. The next generation S650 Mustang will not appear until 2026 or later if Automobile Magazine is to believe (and they should not be believed). ...Published on 04-02-2019 08:11 PM
The Viper in the video belongs to man that goes by the name SneakySnakes. His gen V Viper is sneaky in the sense that it tends to surprise more powerful cars. It is making 661 rear wheel horsepower, all motor. Watch the Viper go up against 1000+ whp competition in a past article. ...
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