Volvo 850 T5

[mikeyt5]

My old man owned this but due to bad health it ended up sitting on the drive for 5 years, managed to buy it from him for a lovely £250!

Gave it a bit of a clean up and got it through the mot with only 1 droplink needed



Wanted to modify it a bit but keep the standard appearance, started with rebuilding the turbo and getting the CHRA modified to fit a 19t wheel, also ported an angled outlet 3" exhaust housing and 11 blade turbine and 11 blade compressor wheel




also ported the compressor housing




while i was there I fitted a later improved exhaust manifold



Then a general tidy up after fitting a 3" throttle body and ported inlet manifold





uprated rs500 intercooler and 3" pipes




3" downpipe



thats where we are today, ongoing project so will have more to come. its running a later 4.4 ecu and goes very well, I have the v70r 302 front brakes fitted now and an 850r clutch to fit, first post so please be nice

[5potTurbo]

£250 is better than mate's rates from your Dad! Billy Bargain!!

Look forward to more updates.

[mikeyt5]

Thanks mate, its constantly evolving at the moment, was 311bhp before the downpipe, intercooler and new ecu so is pretty quick although I am saving for a gripper diff

[Megaflow]

Who balanced the turbo for you?

[mikeyt5]

A company called turbo rebuild did the machining of the CHRA and the balancing

[anonymous-user]

Nice work!

You done anything with the rods? If they're standard they must be pretty much at their limit already never mind the extra you're going to be putting through them?

[mikeyt5]

Thanks, yeah rods are definately close to the limit, the tune is very progressive and doesn't full boost until 4k so not to put too much load on the rods, its too much boost at low rpms that seem to bend them. I am thinking of getting another block to forge though

Edited by mikeyt5 on Tuesday 26th August 21:51

[Pit Pony]

How did you balance the centre housing assembly, once you got the new wheel on ?

I only ask because I used to be a manufacturing engineer at Garrett, and balancing was "important" apparently.

[Megaflow]

mikeyt5 said:

A company called turbo rebuild did the machining of the CHRA and the balancing

Nice. I didn't think anybody would be brave enough to balance a turbo balanced by somebody else. Apart from balancing, there isn't a lot to them.

[mikeyt5]

I sent it to them just for the machining first then got them to check it over and balance, not sure if it makes any difference but they were new turbine and compressor wheels, never heard of the CHRA needing balancing, just thought it was the moving parts, learnt something although its all together and working well now

[mikeyt5]

Just a little clip of what she looks/sounds likes now

https://www.youtube.com/watch?v=OTGDU1_oE14