Thread: EGR - Bypass or Ball Bearing?

Originally Posted by Wasa57

Having read many posts here on EGR bypass, I was wondering why people go to the trouble of fitting a bypass kit, when simply blocking the suction tube with a suitably sized ball bearing achieves the same result (assuming the valve is clean and seals well when deactivated).

Is my assumption correct? What are the thoughts of people who have used either method?

Cheers,
Wasa

Yes and no it also has a bit to do with reducing the restriction that the EGR causes aswell in my opinion

you assumption is correctish

the MY02 setup doesnt have a butterfly so just blocking the vac line assuming the EGR seals is the easy way...

But if you stop a non leaky EGR from working you wont notice anything other than eventually the top half of you motor will outlive someone elses and you wont get the EGR problem.

If you have a fouled EGR that wont seal then just blocking the tube wont sort the problem.

If you have an MY03 engine then you have butterfly in the system that provides a minor restriction to flow so a Full EGR bypass is on the cards if you want everything that there is to offer.

Thanks for that.
Just so I understand...blocking alone will increase longevity of the upper motor, and full bypass will do this as well as...increase power / torque output slightly?

-Wasa

under the assumption that the EGR is not faulty in anyway..

just blocking the tube on an MY02 (or earlier) will stop potential future problems
its 2 tubes for the MY03 (and later)

replacing the entire unit with the blanking plates and a straight through tube will solve any problems that have already developed in the EGR. It will prevent further degredation of the top half of the engine and (IMHO) hypothetically give you a slightly better flow from the intercooler into the inlet manifold. I personally suspect that the % will be nearly undectectable by seat of the pants testing unless your EGR was not working correctly before it was replaced.

I initially blocked mine off by pressing a piece of old shaft in there, but replaced the whole assembly with the blanking kit, as it came with my silicon hoses. Powerwise, removing the egr doesn't do anything...I couldn't notice any increase in power or torque, it was still exactly the same.
Engine life wise, yes it would make a difference, having done my head recently I having see first hand the amount of gunk in the inlet ports, it is definately worth blanking it. Unless you could be bothered constantly logging a stuck egr fault and then making it "unstuck".

i love talking about EGR kits

My valve was a bit sticky so fitted a welsh plug in the exhaust manifold end of the pipe.

Cheers

Originally Posted by Hendrik

I initially blocked mine off by pressing a piece of old shaft in there, but replaced the whole assembly with the blanking kit, as it came with my silicon hoses. Powerwise, removing the egr doesn't do anything...I couldn't notice any increase in power or torque, it was still exactly the same.
Engine life wise, yes it would make a difference, having done my head recently I having see first hand the amount of gunk in the inlet ports, it is definately worth blanking it. Unless you could be bothered constantly logging a stuck egr fault and then making it "unstuck".

Hendrik, where did you purchase the combined silicone hose / EGR blanking kit?
-Wasa