CBRD BIG O2 housing/downpipe vs Map recirc wastegate eliminator
Mar 24, 2013, 07:19 PM
#1
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CBRD BIG O2 housing/downpipe vs Map recirc wastegate eliminator
hi, i dont like external dumps and these 2 seem to be the best options on the market as far as O2 housings are concerned.
$925 for the MAP piece
$895 for the CBRD piece
since i dont often see results for either of these (probably because of STEEP price)
which do you think would give me most power?
http://cbrd.mybigcommerce.com/cbrd-b...ownpipe-combo/
http://www.maperformance.com/map-sta...l#.UU-y6Fda8vs
or should i just suck it up and run an external because of the additional 10-20whp?
$925 for the MAP piece
$895 for the CBRD piece
since i dont often see results for either of these (probably because of STEEP price)
which do you think would give me most power?
http://cbrd.mybigcommerce.com/cbrd-b...ownpipe-combo/
http://www.maperformance.com/map-sta...l#.UU-y6Fda8vs
or should i just suck it up and run an external because of the additional 10-20whp?
Mar 24, 2013, 07:34 PM
#2
Why not this one instead? It is $560 vs $925. You have to select recirculate as one of the options in the drop down menu.
http://www.maperformance.com/map-sta...l#.UU-3IhevWLU
http://www.maperformance.com/map-sta...l#.UU-3IhevWLU
Mar 24, 2013, 08:27 PM
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thanks, i didnt think there was an option on that one for recirculating.
$609 sure is alot cheaper. would there be any boost creep issues since there is no external wastegate?
$609 sure is alot cheaper. would there be any boost creep issues since there is no external wastegate?
Mar 24, 2013, 10:17 PM
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I think that in general a post turbine housing, post bypass port design is at best a compromise. The unaltered bypass port itself remains a flow restriction. I wouldn't run that hokey looking thing.
By contrast, a pre-turbine sourced, dual gated design is a no compromise solution that respects TS integrity. Of course, this would involve additional expense due to the dual externals and a custom dual flanged header, one flange for each set of paired primary runners.
ETS has built a custom dual-flanged header for the 16G. That other design that jerry rigs a remote gate as an afterthought, beyond the turbine housing defies logic IMO. It does nothing to address the flow restriction of the bypass port (s).
Last edited by sparky; Mar 24, 2013 at 10:41 PM.
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Mar 24, 2013, 11:31 PM
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Did you just pull these absolutes out of the air? It is not chiseled in granite that simply swapping a remote wastegate onto a 16G in place of the integral gate will gain 20 WHP.
I think that in general a post turbine housing, post bypass port design is at best a compromise. The unaltered bypass port itself remains a flow restriction. I wouldn't run that hokey looking thing.
By contrast, a pre-turbine sourced, dual gated design is a no compromise solution that respects TS integrity. Of course, this would involve additional expense due to the dual externals and a custom dual flanged header, one flange for each set of paired primary runners.
ETS has built a custom dual-flanged header for the 16G. That other design that jerry rigs a remote gate as an afterthought, beyond the turbine housing defies logic IMO. It does nothing to address the flow restriction of the bypass port (s).
I think that in general a post turbine housing, post bypass port design is at best a compromise. The unaltered bypass port itself remains a flow restriction. I wouldn't run that hokey looking thing.
By contrast, a pre-turbine sourced, dual gated design is a no compromise solution that respects TS integrity. Of course, this would involve additional expense due to the dual externals and a custom dual flanged header, one flange for each set of paired primary runners.
ETS has built a custom dual-flanged header for the 16G. That other design that jerry rigs a remote gate as an afterthought, beyond the turbine housing defies logic IMO. It does nothing to address the flow restriction of the bypass port (s).
i wasnt sure on the 2nd wastegate setup either. ill probably just go with the one in the 2nd post and rely on my 25psi internal gate.
thanks for your reply
Mar 25, 2013, 12:59 AM
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Yeah, Bradley (aka, Lucas) has considerable firsthand experience with the Black in general and how it behaves and responds to different wastegate solutions. He knows what makes the Black creep too and how to solve that particular boost control issue. Definitely, it would be helpful to get his take before purchasing.
Although you might not think so, the Black has some unique boost control idiosincracies. For example, the Black is a turbo that benefits from porting the transitional entrance(s) into the bypass port(s). Lucas knows that stuff backwards and forwards too. Those guys up in the Evergreen State have an unfair advantage though, as everything is legal up there. LOL.
Although you might not think so, the Black has some unique boost control idiosincracies. For example, the Black is a turbo that benefits from porting the transitional entrance(s) into the bypass port(s). Lucas knows that stuff backwards and forwards too. Those guys up in the Evergreen State have an unfair advantage though, as everything is legal up there. LOL.
Last edited by sparky; Mar 25, 2013 at 01:08 AM.
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