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Home > A-Series EFI / Injection > Vmaxscart EFI SC on SPI crankcase breather

Turbo122s

4 Posts
Member #: 12043
Junior Member

Santa Rosa, California, USA

I have just installed a supercharger with EFI on my SPI and it is running great. Currently I have just a little filter on breather that mounts to the transfer case and venting to atmosphere. This is already very close to my air filter. I am thinking about just connecting that breather line to the air filter itself. The SC is already sucking in the fumes.

Any issues with doing this? This would all be pre fuel and pre forced induction.

I know that I can do a catch can. Being an SPI there is already a lot going on in the engine bay. There is no MAP. So no need to worry about getting that all junked up. Just trying to avoid adding 1 more thing to the engine bay


Steve220

181 Posts
Member #: 11017
Advanced Member

Shropshire

Oil, be it mist or fumes, will lower the octane rating of the fuel.


Turbo122s

4 Posts
Member #: 12043
Junior Member

Santa Rosa, California, USA




On 18th May, 2022 Steve220 said:
Oil, be it mist or fumes, will lower the octane rating of the fuel.


Understood on the octane issue. Other than that are there any other issues?


NDT

24 Posts
Member #: 11884
Member




On 18th May, 2022 Turbo122s said:



On 18th May, 2022 Steve220 said:
Oil, be it mist or fumes, will lower the octane rating of the fuel.


Understood on the octane issue. Other than that are there any other issues?


Can't think so. Isn't that how most modern cars are plumbed, blow by gases into the intake?
Incidentally, what ECu are you using to drive your injection?
Are you using the existing SPI throttle body?
Will it flow enough fuel?

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