I have made a few custom intake manifolds for the TII recently. And im thinking of designing one to be a bolt on piece for anyone to use. I could easily jig one up and produce them for people who wanted them.

But i would like feedback on what people would like to have in it. as in, what is more important to you. the use of stock TB, aftermarket TB, FD TB, able to use stock top mount, ect... there are a lot of things i can change and improve on. I would like it to appeal to the masses.

also, i know the production time cost it is to me to make these... but, what would you yourself be willing to pay for a bolt on custom UIM for the TII?

Thanks, all comments are taken into consideration. even the negative ones.

 

I would like to see some dyno runs showing improvement over the stocker. Maybe some pics too.

 

Im working on that now. I have someone with a TII thats all factory minus intake and exhaust to do a good comparison on. but before i do it, theres one thing that has to be worked out. Placing the TB in the exact location of where it sits now for use of stock top mount if wanted. The stock TB is placed very low due to the top mount fitment wich hurts the desing and flow. I would like to have the manifold still bolt up stock location, but placing the stock TB slightly different. this would produce a better flowing manifold among other things. but also would have the effect of some work to be done as in, front mount intercooler since the top mount would no longer fit. and depending on how your harness lays, maybe lengthen the TPS wires and AIT wires. they might fit no problem, but i know from the motors i have worked on, the harness is rarely laying in the same place as another car after 20 years of use and people working on them.

so, would the masses rather it be COMPLETELY stock replacement with the use of stock top mount. Or for the use of an aftermarket intercooler.

After i make a decision on this (with the help from the rotary community), i can jig one up, test it and make alterations if needed, take some pics, and post results.

 

I'm pretty sure no one with a stock intercooler/turbo setup would be interested in an upgraded intake manifold, out of all things; unless it provides a huge gain (unlikely). They're more interested in getting a standalone or upgrading their turbo setup.

The people with front mounts would probably be interested, given that it provides a justifiable HP gain over the stock manifold and the commonly used FD manifold.

 

yes, can you make it so the stock intake manifold has a 65 mm or 70 mm TB bolted right on it?

or... heres what i would want

2 more spots for 2ndary injectors. a big plenum, and a single TB. that would be about it.

 

The original idea was to design it with the commonly used Mustang 75mm-90mm TB. but this would require a different TPS meaning new wiring and possibly a standalone. wich would cut off a great amount of people who might want it. I also gave the FD TB some thought, but that still gave the problem of people having to locate an FD TB with elbow and still wire in the TPS. so using the stock TB flange i believe is best for the masses...

and after giving it some thought and looking into my design. Its better to make it without the use of the stock intercooler. This allows a much larger and better designed plenum along with smoother flowing runners. and additional injector bungs can be added at the request of the purchaser.

Keep posting ideas and what you would like to see on these manifolds. I will post pics and numbers when its complete. I have material on the way, and waiting for some things from the machine shop.

 

plenum volume?

 

i have a stand alone so im 100% open to whatever.

must a 75 mm mustang tb on it, and sell it.

 

For me, like to see a better LIM for S4 & S5 applications. UIM gains by itself are sketchy. Of course they warrant numbers as seen on some dyno results for an FD UIM, but to deviate from the overall design to your custom one to get more significant gains by itself IMO is something that would require some more research and proper measurements. I don't know your credentials or your education background, but if your just someone that's really good with metal fabrication its something to consider.

CAD it up and lets see what you come up with, if you find yourself with a workable prototype id put it on the flow bench, i hope you have access to one.

 

+1

 

I would say setup for aftermarket fmic. As i'm one of them.

 

Make an upper and lower manifold for my s4 tII, that uses Honda throttle body's. Oem Mazda gaskets, and oem Honda t/b gaskets. Must be for fmic only.

If it makes proven power that is worth obtaining. I'd pay $500+ for something like this.

 

I have it completely drawn up. but i dont want to post numbers up on such a large forum. this will keep people from copying my set up before i finish it myself. but i will post pics of the finished product.

besides, back to back dyno comparisons are what people really look for... thats what i will be posting.

the manifold will use the stock TB for ease of installation since most people will not have a standale ECU and might not have the skill to wire a new TPS... but a Mustang TB flange could easily be adapter at request. and it will need an after market intercooler. As some of you stated, the people who will want this, most likely will have one already.

I am working on a better lower intake manifold to go with this upper manifold. But this will take some time giving the tight space the stock turbo creates. I wouldnt want to put some half assed part out. i have to do more R&D on the lower still...

 

people that want to run a custom manifold wont care about stock intercooler,wiring,sensor ect.
People that want a custom manifold have high horse powered cars that have being modified beyond any stock levels meaning that running a couple of new wires of doing some changes are not a big deal,If you want to offer a custom manifold you need to decide between a unit for a stock car or a unit for a modified car because that will affect the whole manifold desing.A top end manifold like a HOGANS or a GATO PERFORMANCE wont do anything more than hurt power on a stock motor,plenum volume,intake runner,size,Tbody location is all different and designed for the application.So i think that you should decide between the 2 of them.Now for me i want a big plenum,single T-Body,shorter runners for the primaries(torque)longer runners for my secondaries(top end)a vacuum manifold build in to the unit and better injector placement.