Unknown bolt-on turbo.

suprafredde

New Member
Apr 21, 2005
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Bought this blue thing and Im hoping someone has seen its kind before and can estimate its hp limit.
I would rather not take it apart but if I have to so be it.

regards Fredrik
 

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MDCmotorsports

Offical SM Expert: Turbochargers
SM Expert
Mar 31, 2005
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Indy 500
www.MDCmotorsports.com
That appears to be an older to4b, with a 57 trim compressor wheel and an O trim turbine, mated to a CT26 exhaust housing.

The bearing housing is a t4.

The compressor housing was originally used in a Ford diesel application and other off hwy apps.
 

MDCmotorsports

Offical SM Expert: Turbochargers
SM Expert
Mar 31, 2005
4,194
2
38
43
Indy 500
www.MDCmotorsports.com
Its a good turbo, provided it doesn't have any shaft play. Should be able to make the 400's mark with it. I doubt it would be that slow to spool in the ct26 exhaust housing...

As for the wastegate hole, I would port it out the best you can.
 

suprafredde

New Member
Apr 21, 2005
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Has little up/down but nothing shaft length wise. How much should I leave for the flapper to rest on? 1mm?

Thanx for the good news/help Mr MDCmotorsports.
 

suprafredde

New Member
Apr 21, 2005
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South of sweden
Picture below shows my current build state.
Turbo got painted and flapper hole ported out as much as I could, edges rounded and housing clocked so there is a little bit of pre tension on the flapper.

The oil inlet fitting is a hair larger than 7mm id.
Ditching the banjo feed and Im wondering what size hose to use, and if I should put some sort of inlet restriction on the feed?
Where to buy hose and fitting for the 7M block?

Never mind the dirty inlet hose and unfinished valve covers =)

Thanx
suprafredde
 

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