Magnum Jet Air

[skuttadawg]

This item claims to improve air flow by creating a vortex, which seems plausible .

Is it legit or a scam ?
www.magnumtuning.com/en/detail/jet-air-high-flow-cold-intake-up-to-od-2-3-4-70-mm-id63

I am really interested in this www.magnumtuning.com/en/detail/evo-tech-motorcycle-performance-chip

My RPMs are limited by the ECU ( no cdi ) and I have to reprogram the ECU versus a simple CDI exchange . Granted I know unlimited RPMs can damage the engine like when screaming downhill . I do not want unlimited but I am sure I could go up a thousand or 2 and be safe , but no more . I can hit 70 MPH then it kicks in and brakes me . I know I could hit 80 without being too risky . Not that I am obsessed with speeding , but here there is plenty of long country highways with megahills that are a blast . One in particular everybody speeds and if you go under 60 cars will ride your tail . I can easily hit 60 to 65 uphill with my speed already up , but downhilling I think the limiter poses danger with the electronic braking effect instead of simply allowing me to zoom .

I know an exhaust upgrade is required and I am looking at airfilters and thinking of a K&N style with a uni cover .

I plan on going with sliders , muffler and tires for sure but other is up in the air .

Everyone wants their scooter to go faster and I am no exception and I realize that 152cc has limits . I can cruise at 60 easy without stressing the engine and know theres room for a bit more within reason . I did want to hotrod my scooter but since its not a GY6 I figured a few upgrades and it will be perfect and last longer than a fully tweaked scooter thats running beyond its ability .

My scooter is a daily driver and I think buying a used 2T to be a pocket rocket toy is my best option and keep my Echarm intact and under warranty , as far as the engine as it runs great , starts instantly and runs cool .

[mainepeace]

I've seen many infommercials about the "vortec" intake insert that is supposed to increase fuel efficiency by creating a "tornado" of air.

There is a basis for the theory. It worked on engines in the late '70's pre EFI. I forget the engine, but I think it was on some 351's where they had a specific "tunnel" intake that was supposed to swirl the intake charge and create a more efficient burn.

Basically, that's also what every intake is trying to do. Mix up the air and fuel for a uniform mix for the ignition. My opinion is that a properly ported intake DOES that and a cheap piece of plastic won't help out, especially when it has to go past the intake port and the valves anyway, messing up any "swirl" that the insert would do. If it really worked you would see that in the normal intake design. Until you deal with ultra high RPM's you don't have to deal with getting that much air through that little a tube. Just make the tube larger to flow more air. The valves are always the choke point anyway. Just my thought.

As for the chip, I would take any claims of improvement with a grain of salt. A generically programmed chip will almost never deliver the promises. Removing the rev limiter or reprogramming it is one thing... simple to do... but remapping the fuel and spark curves isn't and takes lots of tweaking for your specific setup. It's unlikely that it will actually improve on any factory programming, unless the programming is designed to be a limit.

Greg