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Date:         Sat, 20 Dec 2008 17:17:34 -0500
Reply-To:     Chris S <szpejankowski@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Chris S <szpejankowski@GMAIL.COM>
Subject:      Re: DJ-code WBX technical specs
Comments: To: Kim Springer <kimspringer@astound.net>
In-Reply-To:  <004501c962ea$8222d540$86687fc0$@net>
Content-Type: text/plain; charset=UTF-8

I have a second opinion. An engine builder had a set of DJ pistons and measured compression ratio at 10.3:1.

On 12/20/08, Kim Springer <kimspringer@astound.net> wrote: > And no Katto get the 112i! I also still disagree with the Compression Ratio. > My measured numbers on my DJ were 9.6:1. > > Kim > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > Chris S > Sent: Saturday, December 20, 2008 9:37 AM > To: vanagon@GERRY.VANAGON.COM > Subject: DJ-code WBX technical specs > > The gentleman from whom I bought my engine sent me technical specs for > the mysterious and marvelous DJ-code WBX. I know there's been some > interest in the "secrets" (higher compression, different ECU, timing, > maybe others?) behind the higher power output as it would be useful to > apply them to a WBX during rebuild. As promised, I'm posting it here > both for future reference and analysis. > > Please keep in mind these apply to DJ-code WBX running the original > DJ-code harness and ECU, which is different from 2.1l MV and 1.9l DH > WBX. > > DJ Engine - 2.1l Waterboxer - FI > Technical Specifications > > Vehicle Identification > > capacity: 2109cc > mumber of cylinders/type: 4/overhead valve > production run: 2/1985 - 10/1992 > output: 82kW - 112bhp DIN @4800 RPM > torque: 174Nm - 128 lb-ft @2800 RPM > bore: 94 mm > stroke: 76 mm > compression ratio: 10.5:1 > minimum octane: 98 RON - 93 (R+M)/2 > ignition type: transistorized hall effect > trigger location: distributor > fuel system: Bosch Digijet Injection > type: multi-point fuel injection - intermittient > air metering: flow > > Valve timing at 1mm lift in degrees > > inlet open: 10 BTDC > inlet close: 48 ABDC > exhaust open: 50 BBDC > exhaust close: 0 ATDC > > Valve dimensions > > inlet diameter: 40 mm > exhaust diameter: 34mm > > Tuning and Emission > > ignition coil supply voltage: 11v > primary resistance: coil green label .5 - .8 ohm - coil grey label: .6 - .8 > ohm > secondary ressistance: coil green label 2400 - 3500 ohm - coil grey > label: 6900 - 8500 ohm > firing order: 1 - 4 - 3 - 2 > distributor part number: Bosch 0 237 022 054 > ignition timing: 10 +/- 1 BTDC @ 800 RPM without vacuum (see note) > ignition advance checks: 0 - 2 @ 1050 RPM w/o vacuum and basic timing > 2 - 6 @1300 RPM w/o vacuum and basic timing > 12 - 16 @2400 RPM w/o vacumm and basic timing > vacuum advance range: 12 - 16 engine degrees (9-11) > idle speed: 800 +/- 50 RPM > oil temp for CO test: 80C - 176F > CO content @ idle: 2 +/- .5 % volume > HC content @ idle: 300 ppm > > Service checks and adjustments > > spark plugs: Bosch W5DCO / W7CCO > electrode gap: .7mm > valve clearance: hydraulic > compression: 11 - 14 bar (150 psi - 195 psi) > oil pressure: 2 bar @ 2000 rpm @ 80C/176F > > Lubricants and capacities > > engine oil: 10w30 (sf) > oil capacity with filter: 4.5 litres > gearbox oil: 80W - 90W > gearbox oil capacity: 3 litres (Syncro 4.5 litres) > autobox oil grade: Dexron (final drive 90W) > autobox oil capacity: 3 litres > > Notes > > When setting ignition timing on vehicles with DIS (digital idle > stabilisation) the two connectors of the DIS unit must be removed and > plugged together. > > Disconnect engine crankcase breather and plug on side of air cleaner. > > -- > Chris S. > Disclaimer: "Death and serious injury may occur" > >

-- Sent from my mobile device

Chris S. Disclaimer: "Death and serious injury may occur"


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