There are only 4 inlet ports, then there are 4 exhaust ports.
Inlet ports at bottom of picture, nice n clean.
Exhaust at top of picture, dirty.
There are only 4 inlet ports, then there are 4 exhaust ports.
There are only 4 inlet ports, then there are 4 exhaust ports.
Inlet ports at bottom of picture, nice n clean.
Exhaust at top of picture, dirty.
Oops, thanks for that Nodge.There are 8 inlet ports. The 4 lower ports are the primary ports and the 4 upper ports are the swirl ports. The swirl ports are tangential to the primary ports which aids fuel mixing.
Interestingly the swirl ports do clog more than the primary ports. Presumably because of lower port velocity.
Not sure if it's been mentioned or not but does this mod put the engine management light on or go in to limp as a few other vehicles suffer this when blanking it thanks in advance
I had that noise too, It was the EGR controller which as it's no longer needed I just removed. It only started for me after I replaced the ropey vac hoses that go to the controller, one of them was worn through so it must have been bleeding any vacuum away. I just blanked off the hoses that were going to it.Odd, after having fitted the EGR bypass over a year ago the duck noise has just started on mine, though cant say it's an issue only there for a few seconds then goes after engine shut down
You sure you didn't fix something else while fitting it? I modded 2 cars and didn't really feel much difference. If your inlet manifold was very clogged then cleaning it might be what caused the improvement. Or maybe changing a dodgy vac hose.I've just fitted an EGR mod valve and the difference is quite staggering! It starts easier, runs smoother, is missing a lag when trying to accelerate from a STOP, feels smoother and is much more responsive to my foot on the accelerator pedal. All-in-all, if you do not fit this mod you are doing your car a great disatisfaction. Fuel consumption figures are yet to be ascertained, but my feeling is this will be better for me, the car & my wallet.
Not sure it's quite as simple as that, do some research on the topic and you'll find many folk on both sides of the argument. I'd like to think your right but the two cars I modified didn't feel much different. I did it to stop the inlet manifold from clogging up.Okay, I have studied chemistry, physics and most other sciences. I'm also a confirmed Petrol-Head - since my 14th birthday. By recycling exhaust gasses you are feeding a toxic & noxious mix of gasses and unburnt hydrocarbons into each of the cyclinders. This level of polutants and oxygen deficient gas will inhibit the burn capacity of your engine, thus reducing its power output as well as clogging up the working parts. As the fuel is injected into the cyclinder it requires oxygen to be present, to ensure a clean burn with the maximum amount of fuel disposed-of. The exhaust sould be cleaner and the amount of fuel used should be lesser. Use a less amount of oxygen and the output is, less power, greater fuel consumption, great toxic & noxious gasses from the exhaust and more harmful to the planet's atmosphere and its inhabitants. My car is running better, as I expected it to do. Let me put it another way... If you were to eat **** your body would feel like ****. lol Breath fresh air and live a healthy life. Here endeth my story. BSc.
Wot you grumping about Grumpy. He's just talking about wot most of us are doing anyway.Anything more we're all doing wrong?
Wot you grumping about Grumpy. He's just talking about wot most of us are doing anyway.
And he loves his Freelander thus proving he's a nutter.
Just like the rest of us,