ROFL - IJ, his ID is BSG LOL, not BHG...
Dave, do you have a link I can look at to see how the process of doing a cast goes?
Dave, do you have a link I can look at to see how the process of doing a cast goes?
I'm building an FFIM. What would be the ultimate design?
- Thread starter buckshotglass
- Start date
Actually it really is BHG.
I will post up the whole process in my thread, but it is just like they have cast stuff for thousands of years. Google lost wax.
http://en.wikipedia.org/wiki/Lost-wax_casting
I'm skipping steps 2,3,4 and 9.
I will post up the whole process in my thread, but it is just like they have cast stuff for thousands of years. Google lost wax.
http://en.wikipedia.org/wiki/Lost-wax_casting
I'm skipping steps 2,3,4 and 9.
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Nah, it's not that, I am only making one, so I don't need a mold, and it's a royal pain in the ass, and it will add tons of time.
#9 is just something we don't do. I will check the vents with air, and go directly from the burnout to the pour.
Thanks for the concern Jay.
#9 is just something we don't do. I will check the vents with air, and go directly from the burnout to the pour.
Thanks for the concern Jay.
I could pull a mold from the finished aluminum part, but as far as molds go, this one would be fairly complex.
I have access to a foundry to make one of these for me, but it is at the school where I work, and making lots of them is not an option.
I have access to a foundry to make one of these for me, but it is at the school where I work, and making lots of them is not an option.
Now and againMKIII-DRIFTKING said:
(I try NOT to be but sometimes I get it wrong and get educated say thanks and am happy)
I may get shot for suggesting this - but why not figure out how (and tell us how to do it!) to mount the 2JZ Upper Manifold to the 7M lower manifold?
it couldn't be too hard to weld the 2jz mani to the existing intake pipes... what do you guys think
Is there something wrong with tapering the plenum into the runners?
Most seem to have a plate, with a somewhat harsh entry into each runner.
Most seem to have a plate, with a somewhat harsh entry into each runner.
Dave: Can't see it making a lot of difference on boost as you have a pressurised Volume of Air in there waiting for each valve to open.
If it were NA there might be a benefit.
If it were NA there might be a benefit.
Good morning IJ. (9:45am yur time.)
Sounds like no negative, cool. I think as if pre boost is N/A.
Thanks IJ.
(9:45am yur time.)Sounds like no negative, cool. I think as if pre boost is N/A.
Thanks IJ.
Hey Buckshot,
IJ is obviously very on top of it. I built my first fully custom manifold which has not been tested yet but it has internal velocity stacks and I know that one of the professionally made ones does as well. I know it flowed better on bottom end but had a lot of disruption under high boost... Here are some pics of some different ones I have made. From personal experience on my own car I like the longer runner manifolds because of the torque!
Just a few ideas, I finally got the supra started again so I will tell you how the velocity stack manifold works soon!
My next one will be mandrel bend 90's leading up to to give me the volume and longer runners for the bottom end and then just my normal inlets no velocity stacks and tube design cause it is the only way it will fit! HTH
Thanks,
Seth
IJ is obviously very on top of it. I built my first fully custom manifold which has not been tested yet but it has internal velocity stacks and I know that one of the professionally made ones does as well. I know it flowed better on bottom end but had a lot of disruption under high boost... Here are some pics of some different ones I have made. From personal experience on my own car I like the longer runner manifolds because of the torque!
Just a few ideas, I finally got the supra started again so I will tell you how the velocity stack manifold works soon!
My next one will be mandrel bend 90's leading up to to give me the volume and longer runners for the bottom end and then just my normal inlets no velocity stacks and tube design cause it is the only way it will fit! HTH
Thanks,
Seth
Thank you sir. You truly are an icon.
I'm working on the wax right now. I'm going with lower + half of the upper as of right now.
My only concern on the nice taper into each runner is I heard the closing of the cylinder next to the open one 'could' cause a slight disruption. I think my runners are long enough that they will absorb that impact if it exists.
Thank you all.
I'm working on the wax right now. I'm going with lower + half of the upper as of right now.
My only concern on the nice taper into each runner is I heard the closing of the cylinder next to the open one 'could' cause a slight disruption. I think my runners are long enough that they will absorb that impact if it exists.
Thank you all.
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