Is the Ripp Mods supercharger adjustable?
Is the Ripp Mods supercharger adjustable?
Does anyone know if the boost level is controlable on the Ripp Mods supercharger. I know the stage 2 sds says 11 psi but does that mean you can adjust it between 1 - 11 psi or boost level adjus6tment only specific to turbo?
Originally Posted by sykou
awe... oh well thats okay. maximum boost all the time!!!
EDIT: Just for reference, turbochargers are a type of supercharger.
Last edited by HobieKopek; Aug 10, 2004 at 07:21 AM.
oh i get it... so the boost level increases in relation to the increase in engine rpm. so lower rpm means less boost right? and higher rpm means higher boost..i think..
Precisely. As the engine moves faster it turns the belt faster. In turn the belt turns the compressor in the supercharger which compresses the intake air. So the faster the compressor is spinning the more it compresses your intake charge.
Similarly turbochargers spool is determined by exhaust output, so the more exhaust you flow (and the quicker that flow is moving) the faster the turbine spins. And the faster the turbine spins the faster the compressor spins. And the faster the compressor spins the more compressed your intake air becomes.
Superchargers are naturally limited by RPMs and belt/pully configurations as well as the design of the supercharger itself. In the case of turbochargers max boost is controlled by exhaust output and, more importantly, a wastegate which bleeds off extra exhaust from the turbine housing to prevent overspinning the turbine wheel.
Hope that helps everyone. If you couldn't guess I know a lot more about turbochargers than superchargers (but I'm always eager to learn).
Similarly turbochargers spool is determined by exhaust output, so the more exhaust you flow (and the quicker that flow is moving) the faster the turbine spins. And the faster the turbine spins the faster the compressor spins. And the faster the compressor spins the more compressed your intake air becomes.
Superchargers are naturally limited by RPMs and belt/pully configurations as well as the design of the supercharger itself. In the case of turbochargers max boost is controlled by exhaust output and, more importantly, a wastegate which bleeds off extra exhaust from the turbine housing to prevent overspinning the turbine wheel.
Hope that helps everyone. If you couldn't guess I know a lot more about turbochargers than superchargers (but I'm always eager to learn).
If anyone has the Ripp Modds SDS system can you tell me how the system adjusts the a/f ratios. I know it comes with a MAP Sensor but i dunno what it does or if it takes the place of an ECU...
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Good info Hobie...
The AF and timing is basically exactly what fkrzo has stated. Once your in boost the pre-programmed "black box," rippmods engine management, is designed to pull timing(retard) and increase fuel. It changes the injector cycle percentage to accomodate for the increased demand... that along with increasing fuel pressure, due to a rising rate FPR, they are able to supply the right amount of fuel to keep things safe and sound.
If i remember correctly the box sees boost and will force the car into an open loop condition... this make controlling fuel easy and quiet precise as the stock ecu is now operating off a predefined map and not a stochiometric principle map.
The AF and timing is basically exactly what fkrzo has stated. Once your in boost the pre-programmed "black box," rippmods engine management, is designed to pull timing(retard) and increase fuel. It changes the injector cycle percentage to accomodate for the increased demand... that along with increasing fuel pressure, due to a rising rate FPR, they are able to supply the right amount of fuel to keep things safe and sound.
If i remember correctly the box sees boost and will force the car into an open loop condition... this make controlling fuel easy and quiet precise as the stock ecu is now operating off a predefined map and not a stochiometric principle map.
Originally Posted by HobieKopek
In the case of turbochargers max boost is controlled by exhaust output and, more importantly, a wastegate which bleeds off extra exhaust from the turbine housing to prevent overspinning the turbine wheel.
Originally Posted by fkrzo
The map sensor tells the black box when your in boost, the black box in turn munipulates the ECU into retarding your timing and adding fuel.
blaze... the supercharger has a bypass valve(some would say BOV or blow off vlv but it's not the same). The bypass vlv keeps things where they need to be while not boosting and the pulley system of the supercharger ensures there is no overboosting... since the SC is dependant upon rpms you can't overboost unless you over rev. The rev limiter keeps that under control. The bypass vlv bypasses boost out while your driving normally and shuts to provide the motor with boost when you get on it.
bigvinx... what's going on?? Did you wire something wrong??
sykou... the map sensor in the car isn't designed for boost accuracy... thus RIPP provides one that is which splices into the ecu's wiring and becomes the map sensor for the car. Then the "black box," ripp's fuel management system, takes its readings and calibrates it to what the stock ecu wants to see while allowing the box to know where the car truly is at all times.
bigvinx... what's going on?? Did you wire something wrong??
sykou... the map sensor in the car isn't designed for boost accuracy... thus RIPP provides one that is which splices into the ecu's wiring and becomes the map sensor for the car. Then the "black box," ripp's fuel management system, takes its readings and calibrates it to what the stock ecu wants to see while allowing the box to know where the car truly is at all times.
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no way man i went over it like 10 x i just cant figure it out !i runs great till i get heat in the motor and them it spudders and misses and is so rich it isnt funny ! so in turn it falls on its face, cant even boost it ! can i run a 02 sim beacuse i keep blowin 02's the rear !