wax

Ok how is this Its a bit darker but you get the idea more

ahh the photos look real bad because of the reflection of the shiny surfaces I will take some better ones tomorrow

Ok well got in there with the porting tools when i started i couldnt fit a 32mm ball bearing down there now i can roll a 35mm one straight down there I also cleaned out the short turn alot so that its a more direct flow Im very happy with the result the pictures dont show it as well as it should, but you get the idea I have started to clean up around the outside of the manifold , the casting marks will all come off then i will take it down and get it sandblasted to give it that sand cast look again. My goal is to make it look like an aftermarket manifold and not a hand fab job

Im looking around for information for the best ecu for my car at the moment i am thinking of haltech or autronic Was just wondering if the megasquirt is sequential or only batch fire

Im waing for my long burr to come in so i can get into the middle of the runner on this manifold should be here in a couple of days

Yeah i can clearly seem some differences. I think its a very simillar casting with some added holes for the pressure relief valve etc Like my one thats an egr intake , a pain really as you have to grind it all off If you go to a hardware shop you can buy wheels for your grinder that cut alloy and man do they cut alloy I was going to take some more pics but i havent finished the porting so i will wait until then to put some more pics up On a side note buffing compound for an buffer makes a great thing to stop the cutting tip from clogging

I didnt think there was a difference. But im just new to the l6 series engine Can you tell me what the differences are please

Yeah thats what u have in mind,to come in it on an angle. Im just making the top and the bottom at the moment and then i will band saw the front flat and at an angle with a plate on it to bolt a throttle body too.

Not sure how much i can enlarge them but have een porting it this morning and i agree with you, the 1 and 2 runners are badly obstructed. BY widening the front of the plenum i am hoping to get a much better approach on them. Because my manifold started of as an egr manifold it has a nasty kick on the bottom of the runners. I spent alot of time there getting rid of that.

Thanks just working on throttle bodies at the moment Im looking for about a 65-70mm I will just get the manifold sorted before i buy one Tomorrow its in the runners with a die grinder getting there flow up Just bring out the runners 3mm in diameter will bring up the area by 20% as well the cleaning up is going to help the flow alot as well

these panels will be welded in and will increase the size of the plenum as well as give a better approach to the front runner

Ok well i have been looking around and to be honest none of those manifolds i see out seem to have much put in in the way of thought And they are down right ugly if you ask me So here is my take on the manifold situation Its just starting out so easy on me As you know or should know the general of thumb is plenum at 1.5 time engine capacity So 2.8 = 4.2 on the plenum Well we all know the std one is unlikely to be even 2.8 litres So its out with the alloy cutoff wheel and here we go

Excellent thread good pics and info In my experience with jetski porting and other two stroke engine porting i have found that running in the carbide in a buffing stick stops the alloy sticking to the teeth