Custom built air intakes

[chrisbfrs]

Here's a couple air intakes I built for my FRS. Both work well. No idle issues or cel's. One is a super short intake like H.K.S racing suction ,and Agency Powers intake. It is a simple yet effective design.
The second is another one I built. Another simple yet effective setup.
Bot are not cai's but I have tried out a few aftermarket intakes and the ones I built feel better than the others I have used except for the TRD cai. The TRD cai feels the same as the ones I made. None of them have had any idle dips or cel.
Ive have idle issues in a Injen knock off on ebay....I compared it to a friends Injen intake and both were like twins, even has the small tube inside the intake tube where the mas is housed. By the way my friends Injen has come and go idle issues.
The Airaid intake, is currently on my cat being tested, so far its ok. No idle issues. Sounds really good after 5500 rpm! I dont notice any bogging but the mid range does not feel as responsive as even the stock intake. But low end and top are pretty good.

Modern Ink Tattoo

[FR-Sizzle]

IMO all intakes are worthless when you can just buy a drop in air filter and get the same gains. Drop in air filter, then spend what you would spend on other intakes like the TRD CAI or any intake that is 300-400 for a intake duct/silicone tube and they will outperform and breathe better than all intakes on the market.

All the intakes for this car are prone to heat soaking if they arent a true CAI. I dont even consider the TRD intake to be a CAI. Real CAI lead to outside the engine bay. Your intake that is similar to HKS suction reloaded and AP's will definitely suck in hot air and hurt performance in the long run.

Most intakes that stay in the engine bay dont offer any better performance than a drop in filter. The OEM air box is already well designed improving the stock design is the best route whether you just stick to a drop in and silicone tube or even adding those 2 with an intake duct.

Your 2nd intake looks like one of the intakes made by one of the companies posted on this forum and that intake only gained like 1-2 whp when dyno'd. People compared it to R2D2 bc of how it looked.

[chrisbfrs]

Originally Posted by FR-Sizzle

IMO all intakes are worthless when you can just buy a drop in air filter and get the same gains. Drop in air filter, then spend what you would spend on other intakes like the TRD CAI or any intake that is 300-400 for a intake duct/silicone tube and they will outperform and breathe better than all intakes on the market.

All the intakes for this car are prone to heat soaking if they arent a true CAI. I dont even consider the TRD intake to be a CAI. Real CAI lead to outside the engine bay. Your intake that is similar to HKS suction reloaded and AP's will definitely suck in hot air and hurt performance in the long run.

Most intakes that stay in the engine bay dont offer any better performance than a drop in filter. The OEM air box is already well designed improving the stock design is the best route whether you just stick to a drop in and silicone tube or even adding those 2 with an intake duct.

Your 2nd intake looks like one of the intakes made by one of the companies posted on this forum and that intake only gained like 1-2 whp when dyno'd. People compared it to R2D2 bc of how it looked.

I have the trd drop in filter and use my stock box for my main set up
These were just ones I made for the fun of it that dont have any idle issues like alot of production ones. Also wanted to share about how aftermarket intakes aren't always the best.
The TRD was slightly better than the stock box with trd drop in. Also the TRD is a CAI. It installs same as the stock box but deletes sound tube generator am and relocates the MAS. It hooks up to the snorkel that's behind the bumper just like stock...therefore it pulls in outside air not engine bay air. Only difference is the TRD has a huge filter and no 90° elbow so its almost a straight shot though the air box to tje T.B. but if that filter breaks which is unlikely unless mistreated, you cant buy just the filter. Toyota sells it as a whole unit amd no individual parts are available for order of a piece breaks. So that is another down side next to the crazy price for such little gains.
And I agree with you that the stock setup with a trs drop in filter is the best way to go and only cost 50 bucks and doing an elbow mod will help too. I've made a bunch of those for club members. And they are cheaper than buying the avo silicone tubes. Also super easy to build. I use a good German made 3 layer silicone elbow thays mabe for turbo plumbing thwn add a connect for the pcv.
But out of the production intakes I'd say the TRD is the best, although it's pricey, its the best one ive used, and was designed for the 86s MAS the right wayvunlike other setups. But like I said I use the stock box and drop in trd filter....cant go wrong with it.

Modern Ink Tattoo

[chrisbfrs]

@FR sizzle
I also know the intakes I made will suck in hot engine bay heat. I will as showing how of someone was wamting the HKS or AP hpw iys waste of moneu because thwy arw simple to make. And evem thoigh they suck hot air, i live in AZ where CAIs arw sucking air thays jist as hot as the engine bay air lol. Ive made plenty of night time canyon runs with the ones made and they out performed mu friends with CAIs. So they are working foe me in hot AZ. But my stock box with modded tube, trd filter, and front snorkel delete is awasome. I was running my cai intakes with the snorkel behind bumper for a while then deleted the snorkel and wow what a difference it made on all the CAIs i had. Its still pulling in air out side of engine bay in front of radiator even with snorkel deleted. Breaths better and has dyno proven results.

Modern Ink Tattoo

[chrisbfrs]

Heres my TRD CAI and my stock box modded with elbow and TRD drop in filter. I sold TRD CAI. I will also be selling the AIRAID intake.
Plus some elbows I made for club members. Ive made and installed dozens of them no issues at all just compliments. They are simple to make just need materials, tools, and measurements. Total cost in parts about $35 and I build and install for free

Modern Ink Tattoo

[FR-Sizzle]

Thats great if they work for you. I am sure you made them for a fraction of what AP and HKS charge as they charge way too much for those intakes with such a simple design anyone can make it. I just prefer the stock air box as it already is a great design.

But ya I dont consider the TRD intake a true CAI. It does pull air from outside but you can say the same with all the other intakes for this car but a lot of people agree that those intakes aren't true CAI's. A lot of intakes still make use of the snorkel but IMO a true CAI is like FA20 club or Perrins intakes as those are placed outside the engine to get cool air where as the snorkel IMO seems like it would be restrictive since its so small.

Intake ducts for the car get a slight gain when replacing the snorkel so IMO the TRD isnt really worth it just because you can make just as much gains out of buying an intake duct to replace the snorkel, drop in air filter for slightly more power for 150 dollars cheaper than the TRD intake. You can spend that 150 to buy a silicone tube too to even further improve it a little and in the end it costs just as much as the TRD intake. The TRD intake is nice but its too expensive for what it costs. If cost wasnt a factor though I would get the TRD intake and put the HKS air duct with it but that would be 600-700 just for an intake which is way too much as you could spend it on headers with that money.

If you show anyone the TRD intake who doesnt own a FR-S most people would just consider it a short ram as most CAI's have the filter outside the engine bay or at a spot like under the car with an opening depending on the make. There was a DIY in the DIY section on how to make an intake and it uses similar parts as yours. I believe the creator ended up buying an @AIRAID intake which is a shame because the Airaid sucks lol I think his old intake would of been better which was similar to yours. He refuses to believe the Airaid doesnt lose power because he trusts his butt dyno. The intake still gives better throttle response but it another thing to lose whp from heat soak as thats what people believe is the reason for it losing some ponies. Its funny because they dissipated after getting exposed. Just like @vividracing and there crap products by agency power

[chrisbfrs]

Originally Posted by FR-Sizzle

Thats great if they work for you. I am sure you made them for a fraction of what AP and HKS charge as they charge way too much for those intakes with such a simple design anyone can make it. I just prefer the stock air box as it already is a great design.

But ya I dont consider the TRD intake a true CAI. It does pull air from outside but you can say the same with all the other intakes for this car but a lot of people agree that those intakes aren't true CAI's. A lot of intakes still make use of the snorkel but IMO a true CAI is like FA20 club or Perrins intakes as those are placed outside the engine to get cool air where as the snorkel IMO seems like it would be restrictive since its so small.

Intake ducts for the car get a slight gain when replacing the snorkel so IMO the TRD isnt really worth it just because you can make just as much gains out of buying an intake duct to replace the snorkel, drop in air filter for slightly more power for 150 dollars cheaper than the TRD intake. You can spend that 150 to buy a silicone tube too to even further improve it a little and in the end it costs just as much as the TRD intake. The TRD intake is nice but its too expensive for what it costs. If cost wasnt a factor though I would get the TRD intake and put the HKS air duct with it but that would be 600-700 just for an intake which is way too much as you could spend it on headers with that money.

If you show anyone the TRD intake who doesnt own a FR-S most people would just consider it a short ram as most CAI's have the filter outside the engine bay or at a spot like under the car with an opening depending on the make. There was a DIY in the DIY section on how to make an intake and it uses similar parts as yours. I believe the creator ended up buying an Airaid intake which is a shame because the Airaid sucks lol I think his old intake would of been better which was similar to yours. He refuses to believe the Airaid doesnt lose power because he trusts his butt dyno @.@

I agree the stock box with drop on filter is best. That's what I use on my frs. But they are cold air intakes because they do pull air in front of bumper. The filter doesn't need to be im front as long as you have a snorkel pulling in cool air. But I also think a modded snorkel will improve this since the stock is restrictive, so I might fabricate my own to go with the stock box. I like Perrins design in theory, except I dont like foam filters and I don't like the fact that its not a covered filter and vulnerable to weather damage and getting wet in rain.
Im just going to keep my modded stock setup, like you said it is better than most aftermarkets. But if you haven't deleted the stock snorkel yet I suggest doing it asap. I noticed better gains removing it than the TRD drop in filter and elbow mod together.
Its easy too, just un button top of clip and snorkel held im by 2 12mm I think then just carefully finagle it out. Should be a 10 to 15 min project.

Modern Ink Tattoo

[FR-Sizzle]

Originally Posted by chrisbfrs

I agree the stock box with drop on filter is best. That's what I use on my frs. But they are cold air intakes because they do pull air in front of bumper. The filter doesn't need to be im front as long as you have a snorkel pulling in cool air. But I also think a modded snorkel will improve this since the stock is restrictive, so I might fabricate my own to go with the stock box. I like Perrins design in theory, except I dont like foam filters and I don't like the fact that its not a covered filter and vulnerable to weather damage and getting wet in rain.
Im just going to keep my modded stock setup, like you said it is better than most aftermarkets. But if you haven't deleted the stock snorkel yet I suggest doing it asap. I noticed better gains removing it than the TRD drop in filter and elbow mod together.
Its easy too, just un button top of clip and snorkel held im by 2 12mm I think then just carefully finagle it out. Should be a 10 to 15 min project.

Modern Ink Tattoo

I dont like foam filters either and the fact that there CAI only uses the stock orchodion tube is a huge turn off. You need to spend another 150 dollars just to have there silicone tube and they dont even give us a dyno with the silicone tube to show if it even has any improved performance. They claim the silicone tube w/ the CAI adds 3-4 whp when you have there cat back and front/over pipe w/ the deleted cat. But I dont see how that is possible with just a tube. I am sure it gets a little performance but saying 3-4 whp is kind of pushing it, it is still nice to know for peace of mind as it probably wont even be noticeable difference in power and probably only 1 whp or not even guagable since dynos vary already 1-3 whp run from run. The FA20 club CAI is literally the same for much cheaper and has a much better filter.

[chrisbfrs]

Im using an AIRAID right now for testing and then going to sell it. It does look nice under my hood lol but it's not as responsive as the stock box in bottom and mid range. The top end feels good but by that time the stock guy has passed you. Haha.
I do notice though im getting better mpg with the AIRAID than stock. But not much of a difference. But I meed to design and fab. My own snorkel scoop for better cold air induction to my stock box.

Modern Ink Tattoo

[chrisbfrs]

Originally Posted by FR-Sizzle

I dont like foam filters either and the fact that there CAI only uses the stock orchodion tube is a huge turn off. You need to spend another 150 dollars just to have there silicone tube and they dont even give us a dyno with the silicone tube to show if it even has any improved performance. They claim the silicone tube w/ the CAI adds 3-4 whp when you have there cat back and front/over pipe w/ the deleted cat. But I dont see how that is possible with just a tube. I am sure it gets a little performance but saying 3-4 whp is kind of pushing it, it is still nice to know for peace of mind as it probably wont even be noticeable difference in power and probably only 1 whp or not even guagable since dynos vary already 1-3 whp run from run. The FA20 club CAI is literally the same for much cheaper and has a much better filter.

I might even just fab my own setup like perrins and fa20s. I could do it at a fraction of price. I have most the parts just need more piping to route in front of radiator. I have a bunch pf tools in my garage but there's also Local Motors nearw they build the Rally Fighters....and they encourage local guys to bring projects t o do pn their cars. They have top of line equipment too....water jet cutters, all diff welders, 3d designing. Etc. They are a cool shop.

Modern Ink Tattoo

[FR-Sizzle]

If you fabricate something then fabricate something like the Syms intake duct.

If you just make one that fits the OEM air box out of plastic then I am sure a ton of people would be interested as the Syms is just over priced. for a a carbon fiber duct. the Air duct looks as if its twice as big as the HKS air duct.

[chrisbfrs]

Originally Posted by FR-Sizzle

If you fabricate something then fabricate something like the Syms intake duct.

If you just make one that fits the OEM air box out of plastic then I am sure a ton of people would be interested as the Syms is just over priced. for a a carbon fiber duct. the Air duct looks as if its twice as big as the HKS air duct.

Ya that's sick design.

Modern Ink Tattoo

[Turdinator]

Originally Posted by FR-Sizzle

If you fabricate something then fabricate something like the Syms intake duct.

If you just make one that fits the OEM air box out of plastic then I am sure a ton of people would be interested as the Syms is just over priced. for a a carbon fiber duct. the Air duct looks as if its twice as big as the HKS air duct.

I have been wondering if the syms has a larger opening in the replacement front half of the airbox where as the Maxracing and HKS ducts are limited to the stock airbox opening.

[FR-Sizzle]

Originally Posted by Turdinator

I have been wondering if the syms has a larger opening in the replacement front half of the airbox where as the Maxracing and HKS ducts are limited to the stock airbox opening.

Ya the Syms duct is HUGE compared to the HKS one.