Horseman2475
New member
Intermezzo, what is the link to see and buy that air setup?
Can an intake be counterproductive?
- Thread starter imported_SlackerQX4
- Start date
I've got an open Injen setup on the Amigo, it helps when moving and in the Winter, but that's about it. When you're moving at speed, you're washing the hot air back and out, it's not just sitting at the intake in front of the engine (IMHO). In other words, the only benefit at take off is easier air flow, but when you're going I do think you get more benefit.
On the SC, I had more choice. I didn't want a setup with the filter in the wheel well, so I really like the way the one I got is setup:
That's before I had the fit adjusted right, but you get the idea. Just a case around the 9" filter, works great, no restriction and doesn't leave a big empty spot in the engine compartment like a fender filter setup.
On the SC, I had more choice. I didn't want a setup with the filter in the wheel well, so I really like the way the one I got is setup:
That's before I had the fit adjusted right, but you get the idea. Just a case around the 9" filter, works great, no restriction and doesn't leave a big empty spot in the engine compartment like a fender filter setup.
imported_Smoker
New member
Theres 3 main considerations when looking at intakes.
1) Cold air!!
Cold air is good, its denser, therefore contains more O2 .. the stuff that gasoline needs to mix with to go bang!
2) Restriction - The inlet/airbox needs a good air supply that'll let the engine have as much of the cold stuff as it needs.
A 2 litre engine will consume alot of air at 7500rpm.
A big V8 will consume even more!!
3) AirBox Volume - the engine intake will 'pulse' as each cylinder fires.
The stock airbox is of a carefully designed volume to still out these pulses so they dont interfere with the other cylinders intake operation. Anyone whos owned an old car with a big carb and long duration/high overlap cams will have seen the fuel standoff you can get at certain rpms.
Scary stuff.
1) Cold air!!
Cold air is good, its denser, therefore contains more O2 .. the stuff that gasoline needs to mix with to go bang!
2) Restriction - The inlet/airbox needs a good air supply that'll let the engine have as much of the cold stuff as it needs.
A 2 litre engine will consume alot of air at 7500rpm.
A big V8 will consume even more!!
3) AirBox Volume - the engine intake will 'pulse' as each cylinder fires.
The stock airbox is of a carefully designed volume to still out these pulses so they dont interfere with the other cylinders intake operation. Anyone whos owned an old car with a big carb and long duration/high overlap cams will have seen the fuel standoff you can get at certain rpms.
Scary stuff.
SickOfItAll
New member
If you really want to increase airflow to that piping, set it up under a NACA duct 
Probably a bit more than you need, but some of the more hardcore MR2 guys do those to route extra air to the ICs.
Probably a bit more than you need, but some of the more hardcore MR2 guys do those to route extra air to the ICs.IMO, intakes aren't really productive lol, nor are they really counter productive as far as power goes, sound maybe. My car only dynos about a 4 hp with it. They will be MORE productive if you open everything else up, exaust, headers, TB, etc. IMO the price you'd pay to do that isn't really isn't worth it when you look at hp per dollar. Unless your going FI or something.
Just my .02
Just my .02