Custom Cold (?) Air Intake Build

[Sekred]

That's a good looking setup. I was hoping to find something cheaper, lol.

Planning on building your own intake?, you just buy the MAF flange and use your tubing.

http://www.treadstoneperformance.co...MAF+Mass+Air+Flow+Adapter+Flange,+FORD+and+GM

 

[Sourskittle]

http://www.j1automotive.co.uk/ourshop/prod_2943541-Fiesta-Mk7-ST-MAF-Tube-202054401.html

Wonder what this would be by the time it got to me... Prob about the same priced

 

[Sourskittle]

Planning on building your own intake?, you just buy the MAF flange and use your tubing.

http://www.treadstoneperformance.co...MAF+Mass+Air+Flow+Adapter+Flange,+FORD+and+GM

Awesome !! That's likely the route I'll go. That is sweet.

 

[SecretSquirlTuned]

http://www.j1automotive.co.uk/ourshop/prod_2943541-Fiesta-Mk7-ST-MAF-Tube-202054401.html

Wonder what this would be by the time it got to me... Prob about the same priced

that's the one I got it was like $50 and its perfect fit.

 

[iso100]

I ran some logs on Saturday and wasn't very pleased at speeds above 40. The IATs climbed up to 12-15? above ambient and this is with a much better heat shield than the current commercial offerings.

I think I now know why they all block off the downward facing hole where the airbox comes out of... At highway speeds I believe there is negative pressure that sucks air out that hole. I think despite the shield I created, warm engine air is headed in that direction and then out the bottom.

At slower speeds the pressure is neutral and the filter sees cool ambient air.

I'm not entirely sure what to do but I'm thinking I might need to block off the bottom.

 

[SecretSquirlTuned]

I made a 90deg turn and put my filter down where the bottom of the airbox was and my IATs were within 1deg of where they were with the stock airbox at cruising speeds above 40mph. At idle it is around 2-3deg warmer than the stock airbox. But I am very happy with my setup I used a BLOX Racing filter that bolts to a 5" velocity stack to smooth the air flow through the transition and the car runs great with this setup. Doing back2back test on my AP AT watching hp/tq #s I didn't see any peak hp gain but at 5500-7000rpm saw an increase of 5-8 hp which is where this car needs it.

 

[iso100]

I made a 90deg turn and put my filter down where the bottom of the airbox was and my IATs were within 1deg of where they were with the stock airbox at cruising speeds above 40mph. At idle it is around 2-3deg warmer than the stock airbox. But I am very happy with my setup I used a BLOX Racing filter that bolts to a 5" velocity stack to smooth the air flow through the transition and the car runs great with this setup. Doing back2back test on my AP AT watching hp/tq #s I didn't see any peak hp gain but at 5500-7000rpm saw an increase of 5-8 hp which is where this car needs it.

I feel the gains in the same place.

I guess my problem is I didn't run a log on the stock box comparing ambient to what I was seeing at various speed on the IAT value. It's entirely possible the stock box is also getting warmer air than what the exterior temperature sender is getting and I'm just overreacting.

How far down is the bottom of your filter? I measured that the bottom of my filter is about 5" off from the bottom IC hose.

Also, I didn't see any 2.75" BLOX filter setups. Are you running a 3" with another adapter to get it down to the 70mm/2.75" that the MAF tube is?

 

[Sekred]

I made a 90deg turn and put my filter down where the bottom of the airbox was and my IATs were within 1deg of where they were with the stock airbox at cruising speeds above 40mph. At idle it is around 2-3deg warmer than the stock airbox. But I am very happy with my setup I used a BLOX Racing filter that bolts to a 5" velocity stack to smooth the air flow through the transition and the car runs great with this setup. Doing back2back test on my AP AT watching hp/tq #s I didn't see any peak hp gain but at 5500-7000rpm saw an increase of 5-8 hp which is where this car needs it.

I like the bellmouth, worth doing when you can.

 

[SecretSquirlTuned]

Yes im running the 3" with a Samco 2.75-3.0 adapter coupler. the bottom of my filter is really low I haven't measured but I would say about 1-2" of lower intercooler hose.

I feel the gains in the same place.

I guess my problem is I didn't run a log on the stock box comparing ambient to what I was seeing at various speed on the IAT value. It's entirely possible the stock box is also getting warmer air than what the exterior temperature sender is getting and I'm just overreacting.

How far down is the bottom of your filter? I measured that the bottom of my filter is about 5" off from the bottom IC hose.

Also, I didn't see any 2.75" BLOX filter setups. Are you running a 3" with another adapter to get it down to the 70mm/2.75" that the MAF tube is?

 

[iso100]

Coated the heat shield in reflective tape: