peter bland
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| posted on 22/12/12 at 05:34 PM |
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Which turbo for gsxr bec
Apologies if this has been covered but I'm wanting to turbo my gsxr 1000 k2 and want to keep boost to about 6psi so I don't have to
upgrade any of the internals. I have been told to use a Mitsubishi turbo from the Volvo/Saab but not sure which model? Any advice welcome.
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Proby
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| posted on 22/12/12 at 05:55 PM |
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I've just purchased a TD04-HL 16t, which is a mitsubishi turbo off a Volvo. I'm about to try and stick it on my CBR919, as many people
have recommended its the perfect size.
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mark chandler
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| posted on 22/12/12 at 05:56 PM |
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Turbo part number
Low pressure turbo from a V70, I think it was a 2.3 and ran around 6psi in the car, it's a bit smaller than a 16t so will spool up faster, boost
is limited by the waste gate so can run more pressure.
The 16t is capable of running more boost, may come in a little later.
Either are a good choice IMHO
My turbo is a different beast altogether so cannot comment on how the above will perform in real life, what I can say is on the track you will live
between 6000-10,000 rpm, changes in BEC,s are so fast spooling time will not matter once moving.
Regards Mark
[Edited on 22/12/12 by mark chandler]
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matt_gsxr
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| posted on 22/12/12 at 06:39 PM |
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16t is good for 250bhp+ (volvo 850R T5)
15g maybe 240bhp
13's were fitted to various subaru's so might be expected to spin-up quicker for you.
I suspect at only 6psi that you don't need to go as big as 16t, also 13's are cheaper.
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Davey D
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| posted on 22/12/12 at 06:53 PM |
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What about the t28. Should be able to pick one up for a good price
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Proby
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| posted on 22/12/12 at 07:10 PM |
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I got hold of a 16t cheap, which is why I picked it. Is it going to spool up too late? Little worried now, only wanting to run 7 psi ish to start
with!
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matt_gsxr
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| posted on 22/12/12 at 07:33 PM |
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16t will work
Here is a datalog from my gsxr1100 engined. Boost controlled to stay below about 12psi.
Not sure whether 16t is optimal if you are running low boost on a 900cc bike engine.
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peter bland
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| posted on 22/12/12 at 07:47 PM |
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Thanks for the info, looks like 13 t might be the favourite.
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Volvorsport
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| posted on 23/12/12 at 12:12 AM |
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13c is the one.... fitted to all the 940 turbos post 90 apart from some garrets but these were rare.
the main difference is the flange on the exhaust , conical or flat . 13c is only conical.
flat is easiest of course for making an exhaust , i cant imagine anybody having the tooling to form a flare in the garage...
15g/16t are 5 cylinder versions .they just have a bigger compressor housing than the 13c , part thottle will produce boost ........
youll need some big circlip pliers aswell for reclocking the turbo , just remove the little pin .
they have a CBV which can sometime split , it may be easier to blank it off and fit a proper dump valve depending on the way you fuel the engine....
www.dbsmotorsport.co.uk
getting dirty under a bus
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Proby
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| posted on 23/12/12 at 09:20 AM |
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Looks like I might be trading the 16t for a 13c then! I've not started fitting it yet. I may as well swap it before I start.
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Volvorsport
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| posted on 23/12/12 at 11:58 AM |
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tbh , the 16t is the better turbo - if you want to sell it , give us a shout ....
make sure you have a decent intercooler , the 13c will start to heat air up as soon as you go outside its efficiency range , as would any turbo , but
you dont want any ping at all .....
13c/15g/16t all share the same footprint and turbine housing , so its not too much effort to swap them anyway.
www.dbsmotorsport.co.uk
getting dirty under a bus
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