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Re: Individual Throttle Bodies and Improved Airflow
Quote:
Originally Posted by oab_au
The air volume will only be a bit more than the engine consumes now, it is still only a 3.3 lt. The rate of flow will increase with the rpm, but I don't believe it is too small. Are you going to fit an air cleaner?
Use one large one, the air box has to be large enough to allow the sound waves to completely expand, as if the ram pipe opened into the atmosphere. If it is too small the wave will not deliver the same intense pressure wave to the cylinder.
Harvey.
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You would go and give me a good reason to change my direction. Your point about 1 big air box is right on the mark. I didn't consider sound waves. I can buy 3 mm thick carbon fibre sheet (cost a small fortune) this will enable me to build up a strong base for the air box.
I have measured the restriction in the air box and its pretty bad at higher revs, so I will change it. Yes I will run a air cleaner my guess 2 of the current ones side by side. The other plus side of the bigger air box is if I have to install the injectors at the top of the pipes I can use the air box frame to do it.
Does anyone know of any road cars with injectors at the top of the intake pipe?
Tony
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1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX.
1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC)
1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car.
1995 - SVX Green low k mint condiation.
1995 - SVX Rally car, ex Matts car. Now to be used on track.
1992 - SVX red & Black being converted to Mid Engine.
1995 - SVX Red 143,000 bit rough.
Owned 5 others Subaru back to a 1974 1400 GSR.
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