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Last year I brought a r31 s3 Silhouette for a cheap all round street/drifter/drag and circuit car. My intentions were not to chase big power and quick lap times but just to have a bit of fun

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Mods:

rb25/30

R33 5 Speed Gearbox

Powerfc

eBoost 2

full spool with 4:11

hydro handbrake

full 3Inch exhaust

FMIC

S13 BC coil overs

R33 Front brakes

Walbro Fuel pump

WRX seats

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engine bay tidied up

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I did a track day at marulan. It had cheap bob jane tyres on it and the suspension set for drifting so it was very tail happy but I had a ball and it left a smile on face for a week

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After finding out that stock rb25 turbos are prone to break, i was looking to replace my turbo so i decided to upgraded to a Hypergear Atr43 G3. While I was at it I modified the plenum and went Q45 throttle Body

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Tuned by Unigroup it made 250kw atw on 20 psi which was a bit low but was still good fun.

2 weeks after i went EC on Wednesday night.

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Pulled a 13.5 with a 60' of 2.5 (no launch)

I was having big blow by issues and on my 3rd run I could see oil poring out the gap between the bonnet and quarter panel - The dip stick was blown out and from then on the car was burning oil. Compression test revealed Piston #2 had low compression - I think I spent too much time in the Forced Induction thread instead of the events section

Wishing I just left the standard turbo on I was deciding whether I should fix it just part it out as I just got the car back on the road after 6 months, I was over having a car that spent more time off then on the road.

I decided to pull the engine out and crack it out to see exactly what happened.

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Then I noticed that it wasn't a 30/25. just a std 25 which explains why it only made 250kw

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So I carried on pulling it down and #2 had cracked oil glands

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I decided to get it running again with the main focus being reliability not power so I took the engine to Penninsular engines to get:

Head service only

machine & balance of the block and crank

Fit crank collar etc

I'll be fitting forged rods and pistons while keeping the stock oil pump. I will be fitting 1x blank and 1x 1.5mm restrictors which will hopefully will sort the oil issues out.

I should getting it back unassembled early Jan to start bolting it together

Link to comment
https://www.sau.com.au/forums/topic/416125-steveos-budget-31/
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