If you are looking for the Sprintex Blower Calculator, it is attached here. This handy Excel spreadsheet document lets you play with different pulley ratios, blower sizes, engine sizes, and boost levels to determine the right Sprintex supercharger for your needs.
The short answer is “No”.
“Why not?” you might ask.
All of our systems come with what is called a “recirculation valve”. This valve functions as the opposite of a blow off valve (“BOV” for short).
A recirculation valve is open under vacuum and closes under boost. This is to mitigate intake heat when under cruise conditions. It has to close completely for the supercharger to supply positive pressure. Superchargers do not have boost spikes like turbos because they have a constant drive mechanism.
A blow off valve is the opposite of a recirc valve. It is closed under vacuum and opens at a preset pressure. These valves exist to control the overboost condition of a turbocharger.
While you may be looking for a “cool sound” or trying to “prevent overboosting”, these turbo-specific valves are harmful to your Sprintex supercharger kit. Installing one anyway will void your warranty.
An OBD scan tool can be handy to have with your high performance tool arsenal. If you have any check engine codes or are just curious what your engine’s computer is up to, grab one of these global scanners from your local parts store.
Basics of scanning
More in depth video
One of the powerful functions inside the Diablosport tuners are the ability to datalog several data channels inside your factory PCM (called a “PID”, in the datalogging screen.) You can use datalogs to monitor performance as well as helping to diagnose issues.
This user’s video shows the basics of datalogging.
There are channels to log in the factory PCM that are more helpful than others. Select these PIDS in the “PID Select” screen.
- Throttle Position
- Engine RPM
- Coolant Temperature
- Vehicle Speed
- Knock control (for sensing fuel ping events)
- MAP/Baro (This is the MAP sensor, for sensing vacuum + boost)
- Short term fuel trim
- Long term fuel trim
The more PIDS you add, the less resolution you get from the log. There is no need to overload the screen and log absolutely everything for basic diagnosis.
If you find a problem that is repeatable, then you can “catch it in the act”. If you have a particular road or time that a check engine light occurs every time, then you can be prepared to catch it with a datalog.
The most common issue we see with tech support on the tuner box is that the user simply fails to load the tune correctly. If your dash lights up with the throttle control, ESP, check engine light, and can barely get out of its own way—then the tune probably is not installed correctly. You will see a P0129 engine code, too.
The number one rule of working with your tuner box is to not get impatient with it. Modern OBD ports still have baud rates slower than dial-up modems from the 90s. Every tune goes in and out of the vehicle 1 byte at a time, and must be allowed time to do so. That being said, make sure you have a good battery and good connections. If your voltage drops too far during the install, then the PCM tuning will be incomplete. It can take 20-30 minutes to upload a tune.
Thank you for checking our our blog in more detail. We will be putting up more information in the coming days and weeks regarding the ins-and outs of maintaining your Sprintex Supercharger system.
We will start with the most common user installation mistake we deal with–the torn map sensor o-ring. This is very easy to miss because the error is very hard to see or feel. Experienced mechanics know to lubricate o-rings with a little bit of oil or petroleum jelly. For the first timer, this can be a frustrating part of the learning curve that is easy to fix.
This is Jon Schaefer’s video from RPM Extreme on how to diagnose the map sensor o-ring quickly and easily. Start up the vehicle and let it idle. Spray some carb cleaner or brake clean at the base of the sensor and listen for a change in the idle. If the idle fluctuates, then you have a torn o-ring OR a little bit of dirt on the hole. This can cause P0300 (cylinder misfire) as well as P0108 (map sensor high input.)
That hole is chamfered so as not to tear that o-ring. However, not lubing the o-ring and pressing it straight in makes the tear. Lube the o-ring and gently turn it counter-clock wise until you feel it “pulled” into the hole.
Stay tuned as we add more information to help you get the most out of your Sprintex Supercharger System.
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