Discussion in 'Wanted' started by Andrew, Aug 20, 2017.
anyone got one spare for sale or to swop for a diesel one?
I want to give a turbo motor more air
Sorry Andrew, it is for that same reason I can't let mine go.
I might just go with a Donaldson.
You know Leonard, that i was stunned by the difference in power when i changed the 50mm exhaust of a std 300 diesel, to a free flow 63 on my turbo cab. Alan then made me think about the airfilter when he was looking for the right thing for his 605.
I did not consider this change as the 290 turbo has the old 460 diesel sized thing, but according to Alans info this is not enough air for any turboed engine.
Btw the 290 turbo has not only the smaller airfilter, but also a 50mm exhaust. Makes me think.
Andrew, I must add that I never got an adequate air filter for my conversion. ie. the one I eventually used (Petrol cannister) has the little indicator on it which has never been activated.
Now either the filter is sufficient enough or it is not working. Since I can block the filter and the indicator starts showing blockage I am leaning towards the sufficient. And it has been tested to the max on the Namibia dunes trip.
I got my diesel one's inlet pipe widened at TNT Exhaust. Made a noticeable difference to my performance from the petrol motor.
So you did that Anthony? I was wondering whether it is an option.
I do know that the pertol one is physically bigger, with bigger inlet and outlets also
Yes, the actual 280ge canister is marginally larger than the 290GD one, but seeing as I couldn't find one in SA, I simply used the mint condition one I had.
TNT did a great job of redoing the pipes. They used 76mm tubes and the difference was actually quite startling in the power delivery. Although fuel consumption is a largely academic discussion when you drive a G, I seem to gained some extra mileage per liter as well.
Antony - please explain to the less experienced; which pipes exactly did you make 76mm?
Hi Gerhard, the air inlet pipe on the diesel airfilters is only 50mm in diameter. This is fine for a normally aspirated diesel but doesn't allow enough air for a petrol engine to perform optimally. that is the one that I replaced with a 76mm pipe. Inside the canister the L-bend is 76mm but then it narrows again to 50mm where it connects to the engine.
I just got the guys to give me a 76mm pipe all the way through. I'll take photos if you want
Thanks - I think I have it now.. I have attached a photo of mine, looks like inlet is 50mm and the connection (outlet) to engine could be 76mm - I will check when I get it back from the doctor.
If you do not mind, photos will be great.
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