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twin scroll sumps

Old 21 April 2019, 05:29 PM
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the shreksta
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Default twin scroll sumps

i see a few imprezas that have been rebuilt and alot of them list a twin scroll sump, what are the advantages of this?

mainly hawkeye i see with this.

cheers
Old 21 April 2019, 05:32 PM
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stockcar
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Your 2.5 uses the same basic sump as the equivalent T/scroll so no benefit at all

most likely simply people not understanding what they have or being led down the garden path......
Old 21 April 2019, 05:37 PM
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Originally Posted by stockcar
Your 2.5 uses the same basic sump as the equivalent T/scroll so no benefit at all

most likely simply people not understanding what they have or being led down the garden path......
thanks alyn
Old 21 April 2019, 11:38 PM
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Shreksta, I think the ones you see mentioning the TS / 2.5 sumps are 2.0/2.1 cars, no?

Mine's got a 2.5 sump in it, as I'm under the impression that they offer (slightly) better oil control on track.
Old 22 April 2019, 07:05 AM
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Originally Posted by Henrik
Shreksta, I think the ones you see mentioning the TS / 2.5 sumps are 2.0/2.1 cars, no?

Mine's got a 2.5 sump in it, as I'm under the impression that they offer (slightly) better oil control on track.
i think ive seen one 2.0 car with it but mostly 2.5. had a look through some of my quotes for my rebuild and a couple of companies have put twin scroll sump on aswell.
Old 22 April 2019, 08:37 AM
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semih
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Originally Posted by stockcar
Your 2.5 uses the same basic sump as the equivalent T/scroll so no benefit at all

most likely simply people not understanding what they have or being led down the garden path......


Sir,

i guess ts and 2.5 sumps are identical but not same

are 2.5 sumps better then ts sumps or are these changes because of material costs?

what do you think about ?

regards,

semih
Old 22 April 2019, 09:59 AM
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Don Clark
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They were standardised with the arrival the 2.5L engine MY06 onwards and the oil pickup was changed at the same time.

11099AA150/151



there was an earlier version 11109AA130/131





Last edited by Don Clark; 22 April 2019 at 10:13 AM.
Old 22 April 2019, 07:08 PM
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stockcar
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In theory the original TS sump is the 'best' std set-up but very little between them......
Old 22 April 2019, 07:18 PM
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Originally Posted by stockcar
In theory the original TS sump is the 'best' std set-up but very little between them......
whats the deal with the pick up pipes? are the 2.5 the ones prone to fracturing?
Old 22 April 2019, 09:08 PM
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Hope this helps.
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