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Author Topic: Air filter on Turbo motors  (Read 3754 times)
runningmonkey
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Posts: 85



« on: February 07, 2019, 14:27:23 pm »


I was wondering where everyone mounted their air filters on hide away turbo systems?

Am having trouble placing it where CB performance recommends as it keeps fouling the rear valance 

 20190115_220826 by John Mills, on Flickr

Usually the pipe runs from the turbo to the right and up so the filter sets near the oil fill cap, but I just can't make it fit and have already tried cutting the valance. Is its possible to connect the air filter straight to the turbo? or is this not recommended? I guess it will suck in a lot of hot air and dirt in the area?

Any suggestion and pictures on set up would help greatly

Cheers in advance John
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Erlend / bug66
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« Reply #1 on: February 07, 2019, 14:36:57 pm »

I had an angled KN filter straight on my turbo.

A 45degree bent pipe up into the engine compartment works also.
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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
spoolin70
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Posts: 602



« Reply #2 on: February 07, 2019, 21:24:08 pm »

Here is a picture of my old engine bay.

I paid close attention to the physical sizes vs the flow/performance rating and this was one of the few that fitted both criteria.

I had ducting to the engine bay (opposite the fan housing inlet) and the number plate was on spacers with the area behind cut out for extra air flow. Would routinely blow out the filter with an air line and re-oil. I thought this was preferable to mounting it under the car.

Good luck
Darren

[ Attachment: You are not allowed to view attachments ]
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brewsy
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Posts: 357



« Reply #3 on: February 07, 2019, 21:44:14 pm »

John,
Have you got a bypass/popoff valve fitted anywhere on the high pressure side?

Cheers
Marc
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runningmonkey
Jr. Member
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Posts: 85



« Reply #4 on: February 08, 2019, 14:07:37 pm »

Thanks for the reply's

John,
Have you got a bypass/popoff valve fitted anywhere on the high pressure side?

Cheers
Marc

No dude there no dump valve on the CB setup, not sure if its worth fitting one?

I think I came up with a solution last night, I had an 70mm elbow bend which I cut down to size and it now fit's (Just) I like to change the filter to a rubber top style as the metal top CB one will scratch the hell out of the tinwear.   

20190207_191748 by John Mills, on Flickr

 
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Erlend / bug66
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« Reply #5 on: February 08, 2019, 14:48:30 pm »

Make a new piece (longer) so that you can get tinware between the filter and the hot turbo. Sealing of the engine bay helps alot.



Without a pop off, where do you think the pressure will go? Straight out the turbo again.. It's not good..
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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
brewsy
Sr. Member
****
Posts: 357



« Reply #6 on: February 09, 2019, 18:07:57 pm »


No dude there no dump valve on the CB setup, not sure if its worth fitting one?


Suggest that you do look into it mate:
https://en.wikipedia.org/wiki/Blowoff_valve

Not saying that system wont work but turbo life and also performance 'might' be affected BUT as you're only running this as a drag car (I assume?) maybe it wont matter?
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mikko k
Full Member
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Posts: 163


« Reply #7 on: February 09, 2019, 19:56:24 pm »

Pop off valve is even more important at drag race car..
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Martin S.
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Posts: 990



« Reply #8 on: February 23, 2019, 17:30:05 pm »

I asked my builder about it for my street turbo and he said it didn’t need one. I don’t remember why not but it could be that it’s fairly low boost? On the other hand the boost was low but he had planned to raise it once the trans could stand over 200hp. The target was 300+ but the development sadly ended.  Sad
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Cal Look white 68 Bug with AJ Sims EFI Turbo 2332. 194hp 240tq @ 5500 rpm 3psi boost.
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