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= Audi RS2 550hp+, nitrous boost, VEMS motronic55, on Ethanol = This is a friend's car that is currently stock and will start upgrading for 550hp+ Just before start upgrading the engine we will install a VEMS motronic55. ---- == Engine upgrade == *Engine code: ADU 003151 **Forged pistons (Iapel) **Forged Scat Rods **Stage III head modifications ***enlarged and polished intake and exhaust runners ***reshaped valve guide bosses ***upgraded valve train (spring, inox spring retainers and valves) **Reworked camshafts **Adjustable Camshaft Sprocket (will start tuning with +6 exhaust for quicker turbo spool) **9.3:1 compression ratio (original I guess) ***actual compression is around 8.8:1 if measured **Oil cooler: Earls 42500 *TurboCharger **Garrett ballbearing GT 3076 A/R 0.82 **Dahlback Racing exhaust manifold **Intercooler: HKS from a Toyota Supra **3" aluminum intake **original wastegate **4" Downpipe *Ignition **standard Audi RS2 coils ***most likely so old that they will fail. 034motorsport coils are good upgrade (Kalske) *Fuel: Ethanol only *Fuel Delivery **5 Bosch injectors **2 Bosch fuel pumps at 3.0 bar (can handle 16 bar each) *Nitrous system **First stage: +75hp to help turbine spool from 3000rpm to 5500rpm **Second stage: +150hp == Targets == *revs up to 8.000rpm and cutting at 8.300rpm ** ? Is the stock trigger system with VEMS capable for such high revs?Anyone with experience? //pnanassy *** Haven't had any problem so far with such revs (Kalske) *550 to 600hp (+150hp from nitrous system) ** I would say that if cam timing is right you will very close to these figures even without nitrous. I got 475hp with GT2871R from same engine (Kalske) == Engine Management == It will be the PlugAndPlayMotronic (VEMS motronic55) http://www.vems.hu/wiki/index.php?page=PlugAndPlayMotronic ---- = Questions = And what about: *Knock and EGT **EGT is very important (Kalske) *LCD connection **I wouldn't leave this out (Kalske) *PS2 connection **No need for this ---- == Order info == * '''VEMS motronic55''' ** Model Audi AAN/ADU/ABY ** '''Knock and 2 EGT''' ** '''LCD connection''' ** NO 1-wire interface ** NO PS2 connection * '''EGT sensor''' (K-type) ** with_connector pair ** Size 6mm ** fitting_only: no ** with back panel option * Other items ** blue LCD cased ** Wideband O2 sensor ** Wideband screw
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