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Swapping VF13 & 14 For VF18 & 19?


Downdevil
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My primary turbo (VF13) is crapping out.

Just wanted a bit of feedback on replacing both primary and secondary (VF14) with a VF18 and 19.

I'm guessing it should be pretty straight forward fit wise. What about control? Should I get an ECU to go with them or will it run allright with the existing ECU?

Any input appreciated.

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 Downdevil said:

My primary turbo (VF13) is crapping out.

Just wanted a bit of feedback on replacing both primary and secondary (VF14) with a VF18 and 19.

I'm guessing it should be pretty straight forward fit wise. What about control? Should I get an ECU to go with them or will it run allright with the existing ECU?

Any input appreciated.

My mate done that conversion on his RS and it worked mint - no ECU change required.

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  • General Member

go next gen and get 26/27 OR 31/32 ETC

 
Subaru Legacy GTB E Tune station wagons have a vf31 primary turbo and vf32 secondary turbo

any 18/19 pair you get will be just as tired

I now have VF31 Primary and VF27 Secondry pair in mine - hoping to dyno next weekend

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 JoKer said:

go next gen and get 26/27 OR 31/32 ETC

 
Subaru Legacy GTB E Tune station wagons have a vf31 primary turbo and vf32 secondary turbo

any 18/19 pair you get will be just as tired

I now have VF31 Primary and VF27 Secondry pair in mine - hoping to dyno next weekend

Excellent, thats just the kind of info I was after I knew later would be better but didn't know what later models had in em. So these larger turbos will still just bolt up, with the same oil and water lines etc?

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  • General Member

I paid a mechanic to do - he doesnt want to do it again haha

but yea - they are not larger - just newer BUT as Reuben said 26/27 combo is generally regarded as the best of the bunch

yes AFAIK straight bolt in...

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The main thing I'm after is durability, I have a Rage exhaust with the big downpipes so want turbos that will last without having to do fiddle with the wastegate to stop the primary overspooling and eventually dying. Plus a bit of extra boost and drivability wouldn't go astray.

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  • 3 months later...

The Compressor housing is much bigger on the VF33 than my VF20 and both the intercooler and intake connections are much larger than those on my VF20 - so there is no way I can fit them on my car without changing the intake pipe and intercooler pipe. I assume my VF20 is the same size as other TT turbos of the same era, so I can only assume that the VF33 was an upgraded turbo in comparison to earlier B4 turbos? Mine came off an 01 B4, so towards the end of the model range I guess?

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