mark chandler
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| posted on 2/3/08 at 05:41 PM |
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Volvo 940 turbo charger, what's this lump?
Just picked up a turbo for my blade car, its off a 940 Volvo.
All is as I expect except it has an extra lump on it, it looks like an integral BOV as it has ducts to both before and after the fan. The waste gate
is completely separate and looks normal.
Can anyone help.
Also what PSI do these run at?
Type is: TD04H-13C
Part no. 3547658
Cheers Mark
 
Rescued attachment Turbo_top_lump.JPG
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stevec
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| posted on 2/3/08 at 05:54 PM |
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It looks like a internal dump valve. I have a similar thing on my turbo.
See
This picture.
Steve
[Edited on 2/3/08 by stevec]
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mark chandler
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| posted on 2/3/08 at 06:01 PM |
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Looks like the same thing, have you bothered to add anything else to spill air on shutdown?
This had a small bore tube running to the inlet so I assume on overpressure it dumps the air (nice and quietly).
Cheers Mark
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hobbsy
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| posted on 2/3/08 at 06:03 PM |
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Yeah its an integral re-circ dump valve.
If you look down the compressor inducer you'll see where the air comes back in.
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mark chandler
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| posted on 2/3/08 at 06:08 PM |
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Good
So no need for anything else off Ebay, my £1 turbo feels nice and tight so locost all the way.
Just need to start welding up the manifold now.
wooooosh
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stevec
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| posted on 2/3/08 at 06:35 PM |
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When you close the throttle Vacuum opens the valve and helps stop turbine stalling.
I left mine disconnected and replaced ot with the one in the boost pipe in the picture
Here
Steve
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matt_claydon
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| posted on 2/3/08 at 07:31 PM |
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Sorry to hijack the thread, but Steve, do you have any airflow in and out of your intercooler or does it work enough without?
[Edited on 2/3/08 by matt_claydon]
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Volvorsport
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| posted on 2/3/08 at 07:52 PM |
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CBV , compressor bypass valve .
fit a blanking plate , and use a proper dump valve .
is that a 13c turbo ?
too small , need a 15g from a T5 .
www.dbsmotorsport.co.uk
getting dirty under a bus
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Volvorsport
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| posted on 2/3/08 at 07:58 PM |
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oh 4 or 7-8 ish psi dpending on the model you got it from
B230FT 8 psi
B230FK 4 psi
www.dbsmotorsport.co.uk
getting dirty under a bus
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locoR1
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| posted on 2/3/08 at 07:59 PM |
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^^^^^^^^^^As he said Blanking plate on mine with a proper bump valve
And my turbo’s a 16g from a T5r a 15g should be about spot on for a blade if it’s a 13 I would agree to small.
 
Description
Check out my CB500T Cafe Racer build diary
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mark chandler
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| posted on 2/3/08 at 08:35 PM |
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Its going on a 893 blade, I do not want something huge on there, just want to up the power a bit + I,m bored so want to develop.
893's have smaller clutches than any of the later variants + gearboxes will be a little weaker, max power destroys evetything else down line.
That aside if it will push say 7psi then I,m more than happy
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stevec
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| posted on 2/3/08 at 08:36 PM |
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quote:
Originally posted by matt_claydon
Sorry to hijack the thread, but Steve, do you have any airflow in and out of your intercooler or does it work enough without?
[Edited on 2/3/08 by matt_claydon]
My air into the turbo comes in from the passenger footwell so is quite cool to start with, I have some louvres in my bonnet to let some of the hot air
out, the turbo does not produce massive boost so all in all I dont have a heat issue.
Steve.
[Edited on 2/3/08 by stevec]
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mark chandler
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| posted on 2/3/08 at 08:44 PM |
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Engine was FT, so 8psi... disco
Only £1 for the whole engine complete, unbolted this and put the rest in a skip!
Cheers Mark
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Volvorsport
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| posted on 2/3/08 at 10:47 PM |
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you put the rest in the skip - mileage year - would of got £50 for it - im looking for one too .
tbh ive put 5 blocks in the skip before xmas
www.dbsmotorsport.co.uk
getting dirty under a bus
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mark chandler
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| posted on 3/3/08 at 05:54 PM |
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Not quite skip, it had receipts for recondiioning a few years ago, £1,600 and the chap I purchased from said it was really good, he removed to keep
then sold his car.
If you want it and can arrange carriage its yours.
Its a 2litre
Regards Mark
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Volvorsport
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| posted on 3/3/08 at 08:42 PM |
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ahhh , 2 litre , hmm need a 2.3 .
www.dbsmotorsport.co.uk
getting dirty under a bus
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