Some bad news our tuners here at ZZP stumbled on - and it explains some issues we've been seeing first hand. Unfortunately, do to the worldwide pandemic, the EPA has loosened their regulation on the fuel grades being shipped to our stations.
Recently I have seen a lot of chatter about fuel injectors and who’s are better, up to and including a tuner that refuses to tune vehicles unless the customer buys specific injectors from the tuner. After stumbling on a post about this, I found it interesting that the tuner was making claims that, while having some technically correct parts, made it very clear that he didn’t understand what he was saying, claiming that unless people buy his injectors, the fuel will lose it’s atomization and pool in the port and on the valve, and be bad for performance....
How to use our HP Tuners interface rentals/remote tunes. While we offer many different types of tuning, our favorite and most preferred is remote tuning (and logging) your individual car. This is a checklist of all the steps of how to upload a file, scan, and make revisions all through the HP Tuners software that we use.
ZZPerformance’s Slingshot Turbo Kit will bring your Polaris Slingshot to a whole new level of performance and power. The kit itself includes the following parts: ZZP Ecotec turbo manifold ZZP ball bearing turbo Tial MVS 38mm waste gate ZZP custom turbo muffler with recirc waste gate Charge pipes ZZP Intercooler specifically designed for the Slingshot … Continue reading Slingshot Turbo Kit Upgrade→
The first mod is usually our ZZP 1.0 pcm file. It will adjust many things to improve the cars performance and should not have any effect on fuel economy or emissions. The next thing would be a cold air intake. We have a couple options: ZZP Cold Air Intake, Wizair Cold Air Intake, and of … Continue reading How to Mod your Naturally Aspirated L36/L26→
The Ecotec 2.0 liter turbocharged LNF engine has proven to be nothing short of amazing. In stock form, it produces 130 horsepower per liter of displacement, making it the highest output motor that GM has ever put into production. And that’s just the start. Add a handful of bolt-on modifications and you can add close … Continue reading LNF Fueling Article→
Move your passenger seat all the way forward and lock it into position. Buy or make a fan switch that will allow you to run your fans on low, cooling the car down between runs. Clean your air filter before going to the track. Race gas with an l/8th of a tank at the most … Continue reading Drag Racing Tips→
By removing the brackets shown in the picture below, you can drop 4 pounds 2 ounces. In addition to weight savings, the removal of these brackets makes it much easier to change spark plugs. You can remove all of these with a 13 mm socket. The brackets are used for removing the engine. Save … Continue reading FREE MOD: Removing the Engine Brackets→
This tech article is to clear up false information being presented by companies in order to save you from thousands of dollars of un-necessary damage to many engines. We apologize to those whom find out they probably need to change the setup on their engines, but due to our research and desire to help customers … Continue reading Valve Springs and Retainers→
Think of exhaust gases as a piston moving down through the tubular system. As each pulse travels down the system, it creates a vacuum behind itself. The negative pressure behind each is the scavenging effect. As the velocity of the pulse increase, the negative pressures also increase. As you increase in velocity, the length of … Continue reading Ported Exhaust Manifold Tech Info.→
No IC Grand Prix 3.8 (Stock): 667 3.2-3.6: 660 2.85-3.1: 650 2.7-2.85: 642 Bonneville Stock: 721 3.4: 716 With ZZP Stage 2 IC (2.25″ tall Core) 6 Rib 3.3-3.8: 685 2.7-3.2: 680 (Note that the NAPA 680 may be too long for 2.8″ and smaller. Try a NAPA 672) 2.5-2.6: 672 8 Rib NOTE: For these … Continue reading Belt Sizes – Routing and Pulley Diagram→
Tuning your fuel trims with HPTuners will not only reduce your idle surge but can help to make your car run a lot more consistent. To do so, you want to get the car to running temperature. Open HPTuners scanner and hit the space bar. Let the car idle for about 2 minutes with the … Continue reading How to Tune In Your Fuel Trims with HPTuners→
The third graph below (Graph 3) shows what the PCM believes to be real knock (not just engine noise). This knock is indicated by the spikes in the signal along the graph. The largest spike by far is the one on the far left. Note the scales on BOTH axes. This is significant signal strength … Continue reading KR – Graph 3: What the PCM Believes to be Real Knock→
Did you ever wonder how 2 people with the seemingly exact same car could run such different ¼ mile times? Here’s a peek into why that happens and what you can do to turn your GP into a factory freak. There are many reasons that some people with similar mods run much faster than others … Continue reading What is a Factory Freak?→
For quite some time, there have been many claims and conjectures about the performance impact from removing the factory U-Bend in the exhaust system on the GM 3800 Liter V6 (Naturally Aspirated L36 and Supercharged L67). For those who are not familiar with the U-Bend, it is a bend that GM designed into the exhaust … Continue reading U-Bend Replacement Test→
There are many performance mods available for our cars that take different approaches to making hp but they all have one thing in common: Airflow. To make hp you have to have airflow and lots of it. Since the SC forces everything into the motor I have found that no matter what I do … Continue reading Eliminating KR→
It is a common misconception that spark plugs create heat. Well, they do not. A heat range refers to how much heat a spark plug is capable of removing from the combustion chamber. Selecting a spark plug with the proper heat range will insure that the tip will maintain a temperature high enough to prevent … Continue reading Spark Plugs→
The stock gasket between the supercharger and the throttle body is made conservatively from the factory to seal properly on every car. The problem with this is that you get an ever-so-slight overhang of the gasket into the airflow path. To fix this simply remove your Throttle Body, being careful enough to reuse the old … Continue reading Free Mod: Improving the Throttle Body Airflow→
Here is a complete list of what is needed (cores included): Highly recommended: ZZP downpipe (pretty much required) Stock or Ported stage 1 L67 throttle body. (better performance than using a L36 TB, but must be programmed into the PCM) 180 thermostat Possibly a bigger fuel pump, if needed. (Scanning or dynoing the car when done is … Continue reading How To: Superchage a NA L36 Car (ZZP ssm90 Kit)→
The following is a build up for a stock supercharged car that will bolt on about 50hp and add around 2+ MPG. You must add a bolt in the ZZP downpipe or UBend Delete to make the list below safe. If you have a 04+ Supercharged Monte Carlo or Impala, then you would want to … Continue reading Build Sheet For a L67 Series II Supercharged Car→
The graph below shows what the knock sensor signal looks like at WOT with no KR. Notice again the scaling on the Y axis, this time it is VERY high. I was, of course, careful to ensure that there would be no knock during this run. This is simply engine noise at high RPM.
Machinist’s workshop magazine ran a study, back in April of 2007, that compared the most widely used penetrating oils on the market, and the amount of torque it took to free rusted bolts after application. They ran the test by arranging a subjective test of the most popular penetrates, with the control being the torque … Continue reading Penetrating Oils Compared→
One – 3/8 Drive Ratchet One – 3/8 Drive Small Extension One – 3/8 Drive 10mm Universal Socket Instructions: Step 1: Locate hood release in driver side foot well. Step 2: Pull hood release toward you to pop the hood open. Step 3: Open hood by placing your hand between the hood and front bumper cover, making a … Continue reading FREE MOD: Boost Bypass Mod→
With all the different stall speeds available, many customers in our market will ask which stall speed is “the best.” In short, there is no better stall speed; it’s about matching your needs to the right unit. The other question we often get is what does that stall speed number even mean? Specifically to our … Continue reading Torque Converter Stall Speed→