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Here is the new sideport lower version below. This unit is equal length, shortened by 45mm vs the OEM 20B lower, will be o-ringed at both flanges( not pictured), has an additional injector( 1 per port), no emissions components( for competition use only), and has nicely tapered slightly larger primary runners for increased velocity, and higher flowering secondary ports. This will work with the OEM upper, or our soon to be released upper( similar to our 13B unit). If one is using the OEM 20b upper, you will want to port match the ports. This unit will come with its own proprietary secondary fuel rail, no other units will fit this( we changed the injector location for better atomiziation, and power). Runner transitions and bends have been also improved over factory. We are starting the molds next week on them.
better perhaps if injectors were on outboard side of engine? So how much lower? Expected price?
Not ideal since the turbo/exhaust system is all over on that side. We aren't changing this model anymore, this is the finished unit. We already started on the mold too.
Very exciting to see a new performance cast LIM!!!
A few questions.
Do you have a cross section view of the runners in the cross car plane?
What are the runner taper angles?
What are the runner volumes?
Any chance you have run CFD on the design?
Very exciting to see a new performance cast LIM!!!
A few questions.
Do you have a cross section view of the runners in the cross car plane?
What are the runner taper angles?
What are the runner volumes?
Any chance you have run CFD on the design?
Thank you
The CFD testing in my experience never plays out in real life, there are too many variables that you never have all the correct inputs for. I've had intakes show ideal CFD & flow bench testing completely flop on the dyno.
I have all the above data, but its all proprietary.
Talking big dollars in software licensing for dynamic/transient chamber flow modelling capable software packages to go close to doing justice to dynamic operation.
The CFD testing in my experience never plays out in real life, there are too many variables that you never have all the correct inputs for. I've had intakes show ideal CFD & flow bench testing completely flop on the dyno.
I have all the above data, but its all proprietary.
Thanks for the reply. I have experienced useless and useful CFD, it depends on what you are expecting to get from it. I'll cut to the chase, it looks like your runners make a hard 90 at the flange that mates to the irons. Im hoping this is just the way it appears from the outside and it is not indicative of the flow path.
Please dont take this as criticism, this is an expensive intake manifold (rightly so as you need to cover tooling cost with a low volume) and I want convince myself to buy one! So please talk this thing up, tell us how you flowed the ports and they all flowed similary at various velocities or whatever it may be. Not asking for proprietary data, just looking for a little assurance that this is a top notch design.
Our first batch of these will be shipping out this week to customer, we are all sold out. We have started on 100 units ( first production batch), and also just started on the mold work on the semi pport version.
Both lowers will be in stock in a few more weeks, so we are moving on with the UIM. Here is our progress so far, this is still obviously in the works, and will be changing as we go...