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STi back to life
The STi now has it’s engine back in, and the initial run in completed. Next step is to get it onto the dyno, ensure the tune is ok with the altered compression and fuel system, then spend a few thousand km’s breaking her in. Can’t wait to finally drive it again after so long!
Posted in Impreza STi
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STi progress
Well the engine is out and the offending piston has been analysed. It looks to have had a massive failure and cracked the ring lands off!
The good news is that it doesn’t look to have come from extended periods of detonation, so just the stock hypereutectic not being up to the job. Regardless of this we’ll be modifying the fuel system to run in parallel with an Aeromotive FPR taking over from the stock item just as an extra security measure.
The old setup:
New setup:
The rest of the components were all in good condition so it looks like the engine was nice and fresh, bar the one piston.
Posted in Impreza STi
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PB at Winton for the STi – October 2010
1:40.7 on RE070’s.
Modifications:
Swaybars
Exhaust
Tune
Posted in Impreza STi, Uncategorized
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Recap on the STi
EJ25 is coming out.
It seems that piston 4 has chucked a hissy fit in the STi, with low comp and terrible leak down results so the bottom end is being replaced. Due to time constraints, and also the poor experience I’ve just had with having an engine built here I looked overseas for a ready built block. After much research Rallispec in the US came very highly recommended, and after having a chat to the owner I was convinced.
This is now being built and will be shipped soon enough:
RSB-SS25 Street Spec Short Block Subaru 2.5L
Custom built to exacting tolerances. Street Spec short blocks are designed for applications under 600bhp. Features semi-closed deck block, Manley 4340 steel H-beam conrods, Cosworth forged pistons, and uprated main and rod bearings. Factory nitrided crankshaft . Designed for the low noise and long life demanded by a daily driven street application. 8.2:1 CR with EJ257 heads and standard head gasket thickness.
I’ll also be looking to have the fuel system modified as I believe the issue was caused by a lean out in cylinder 4. Research tells me that the fuel distribution has an inherent issue and this will be addressed prior to screwing everything back together.
Stay tuned.
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Video from Autosport International detailing some additions to the 2011 range
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Update
Update
Good news – my car will be shipped from the UK this weekend, so I’ll be looking at a early-to-mid March delivery date. I’m excited!
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SR3 RS Slalom Video
SR3 RS slalom
Cool video from Italy of a SR3 completing a Hillclimb with style:
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The New Car
For a bit of history on myself, and my cars check out my old blog here: http://project180sx.blogspot.com/
Well, the 180 has now been sold and was picked up by it’s new owner a few days ago. It will be missed, but as they say, onto bigger and better things!
I have purchased a 2005 Radical SR3 through Radical UK, and am currently awaiting a shipping confirmation date. Basic Specs on the car are as follows:
* Two-seater, powder-coated carbon steel space frame chassis, with integral safety cell complying with FiA Production Sports Car Safety Structure Test.
* Aluminium honeycomb front crash structures complying with FiA Production Sports Car Crash Test. Removable forward-facing steel chassis stays. 54 litre foam-filled aluminium
fuel tank mounted behind the driver within the safety cell.
* Fully adjustable pedal box.
* Driver seat-belt complying with FiA requirements.
* Powertec 1300cc 4-cylinder double overhead cam engine, dry sump with remote oil reservoir.
* Oilcooler and electrical pump to circulate water to prevent heat soak.
* Engine performance:
210bhp, 130ft/Ibs, 10,500rpm. Four butterfly, 41mm fuel injection system with composite ram air box. Lightweight steel flywheel with multi-plate clutch.
* Stainless steel manifold and silencer. Six speed sequential transverse gearbox. Gear drive system incorporating torque-biasing limited-slip differential.
* Interchangeable gear ratios and integral reverse gear system.
* Powertec transmission oil pump & radiator.
* Fully adjustable Nik suspension system front & rear – unequal length top & bottom wishbones, fabricated uprights, forged centre lock hubs and interchangeable anti-roll links.
* Single-adjustable, coil-over dampers.
* Radical four-pot calipers front & rear, 260mmÅ~25mm, 30-vane ventilated discs front & rear.
* Radical centre lock, cast aluminium wheels – 8″Å~15″ dia. front and 101/2″Å~16″ dia. rears.
* Dunlop bespoke slick tyres.
* Six-piece lightweight fibre-glass bodywork with self-coloured gel coat finish.
* High downforce composite front diffuser with removable, high-nose, low-drag front section.
* Central brake coolingduct connected to carbon composite brake cooling shrouds.
* Wheel arch louvres front & rear.
* Rear view mirrors.
* Quick-release front cockpit fairing.
* Composite side pods with air management system and radiator inlet
* Composite side skirts.
Removable composite tail section with integral induction intake & ventilation grilles.
* High downforce bi-plane rear wing with end plates.
* Rear brake & fog lights.
Carbon-composite dash surround.
* Quick-release steering wheel.
My car comes with the following additional options:
• Full SR3 RS spec High Downforce Aerodynamic package
• Front splitter
• Rear diffuser
• Bi-plane wing
• Latest dry sump tank
• Le Mans carbon mirrors
• Single adjustable INTRAX struts
• 1500CC PowerTEC engine upgrade (250hp)
• Air Jacks
• Racing lights system
• 280mm floating discs
• Front roll bars and stay protection.
• Farringdon Data steering wheel
The car has just had it’s engine refreshed, gearbox refreshed, new uprights all ’round, bushes replaced and new discs prior to leaving the UK so it should be as fresh as a daisy.
Images of the car in England:
I can’t wait to get my hands on it!
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DBS Motorsport 