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TD05 16g and 18g whats the diffence??

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Old 03 September 2007, 06:57 PM
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jiffthejiffmanjaffa
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Default TD05 16g and 18g whats the diffence??

Looking into upgrading my turbo. It has been suggested that with my spec (see my scooby) I should get my Td05 convertered to 18g.

Is this the right way to go? or is there a better route? Where would I get such a conversation done local to Essex, or is there a trustworthy company that will do it via post.

Any idea on cost too?
Old 03 September 2007, 08:24 PM
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sl1000
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yep could use a turbo upgrade
depending on power / spool up wish you have to decide which one.
However if going much further then 329bhp you might need stronger gearbox.

look at website of Andy F. for more info on price.
AndyForrestPerformance
but there are more people around here which could help
Old 03 September 2007, 08:48 PM
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16g good for 340-350bhp

18g about 10% more
Old 03 September 2007, 08:49 PM
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both capable of chewing your gearbox up and spitting it out
Old 03 September 2007, 10:05 PM
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jiffthejiffmanjaffa
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What gear box should I get then? 6 speed or Type RA? Or mod what I've got?
Old 04 September 2007, 08:44 AM
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On that engine I would go with the AFP16g it’s a very capable unit at around 340bhp and will be much better overall than your existing turbo..
This was you will retain more reliability as you will be pushing the capabilities of the box and engine at this level long term anyway.

With regards to the box remember it’s down to the toque that kills them. There are lots of cars running the wrx/sti boxes at this level without issue its really more down to use and abuse of the box its self., the type r and ra boxes are slightly stronger due to wider but teeth but have shorter ratios that some don’t’ like this. Its something you will probably need to consider at some point but its not a case of fit the turbo and the box will blow.
Old 04 September 2007, 01:34 PM
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Originally Posted by jiffthejiffmanjaffa
...Where would I get such a conversation done local to Essex...
There's a Subaru specialist in Boreham called Xtreme Scoobies (Unit 7, Drakes Lane Industrial Estate, Boreham, Essex, CM3 3BE, Tel: 01245 363623). Speak to Knowlesy re. your needs - he's a very knowledgible and aimiable guy...
Old 04 September 2007, 05:25 PM
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jiffthejiffmanjaffa
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Originally Posted by *Un-ink*
On that engine I would go with the AFP16g it’s a very capable unit at around 340bhp and will be much better overall than your existing turbo...
I'm not keen on changing the turbo for an extra 10bhp.

I think by the sounds of whats been said, I need to save my pennies for a rebuild and new box, then get a more extreme turbo eg 18g 20g?

380bhp to 400bhp is the aim, or at least considerably more torque.
Old 04 September 2007, 05:38 PM
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Its the best way, 2.5 bottom end with drop in pistons will see you 400/400 on the 20g.
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