AAR Engine

[Hayes Myers]

Thanks Tony.  I confirmed that NG is to AAR
 (wasn’t sure but figured that’s
the implication of your email
had to be J )  I’ve attached the posting for
this engine
 variants are NF,NG,AAR for 10v and 7A for the 20v 2.3 litre

Below it puts the NG/AAR together  rating them to same power
I’m figuring
same intake as well? I’ll dig alittle more as my correlation is a stretch

or someone can stop me with “Yup, NG=AAR injector mounting style on intake”.

TKs for the help
. Guess this engine isn’t the one for me.

Hayes

2.3 98-125kW

identification

parts code prefix: 034; engine ID codes: 10v: NF, NG, AAR; 20v: 7A

engine displacement <http://en.wikipedia.org/wiki/Engine_displacement>  &
engine configuration <http://en.wikipedia.org/wiki/Engine_configuration> 

2,309 cubic <http://en.wikipedia.org/wiki/Cubic_centimetre>  centimetres
(140.9 cu <http://en.wikipedia.org/wiki/Cubic_inch>  in), inline five
cylinder <http://en.wikipedia.org/wiki/Straight-five_engine> ; bore
<http://en.wikipedia.org/wiki/Bore_%28engine%29>  x stroke
<http://en.wikipedia.org/wiki/Stroke_%28engine%29> : 82.5 by 86.4
millimetres <http://en.wikipedia.org/wiki/Millimetre>  (3.25 in
<http://en.wikipedia.org/wiki/Inch>  × 3.40 in), stroke
<http://en.wikipedia.org/wiki/Stroke_ratio>  ratio: 0.95:1 -
'undersquare/long-stroke'; 461.9 cc per cylinder
<http://en.wikipedia.org/wiki/Cylinder_%28engine%29> 

cylinder block <http://en.wikipedia.org/wiki/Cylinder_block>  & crankcase
<http://en.wikipedia.org/wiki/Crankcase> 

grey <http://en.wikipedia.org/wiki/Gray_iron>  cast iron
<http://en.wikipedia.org/wiki/Cast_iron> ; six main
<http://en.wikipedia.org/wiki/Main_bearing>  bearings, die
<http://en.wikipedia.org/wiki/Die_%28manufacturing%29> -forged
<http://en.wikipedia.org/wiki/Forging#drop_forging>  steel crankshaft
<http://en.wikipedia.org/wiki/Crankshaft> 

cylinder head <http://en.wikipedia.org/wiki/Cylinder_head>  & valvetrain
<http://en.wikipedia.org/wiki/Valvetrain> 

2v two valves
<http://en.wikipedia.org/wiki/Poppet_valve#internal_combustion_engine>  per
cylinder, 10 valves in total, single overhead camshaft
<http://en.wikipedia.org/wiki/Overhead_camshaft#single_overhead_camshaft>
(SOHC), compression <http://en.wikipedia.org/wiki/Compression_ratio>  ratio:
10.1:1

4v four valves <http://en.wikipedia.org/wiki/Multi-valve>  per cylinder, 20
valves in total, double overhead camshaft
<http://en.wikipedia.org/wiki/Overhead_camshaft#double_overhead_camshaft>
(DOHC), compression ratio: 10.3:1

fuel system

Bosch <http://en.wikipedia.org/wiki/Robert_Bosch_GmbH>  KE-Jetronic
<http://en.wikipedia.org/wiki/Jetronic#KE> 

DIN <http://en.wikipedia.org/wiki/DIN> -rated motive
<http://en.wikipedia.org/wiki/Motive_power>  power
<http://en.wikipedia.org/wiki/Power_%28physics%29>  & torque
<http://en.wikipedia.org/wiki/Torque>  outputs

2v NG/AAR: 98 kilowatts <http://en.wikipedia.org/wiki/Kilowatt>  (133 PS
<http://en.wikipedia.org/wiki/Metric_horsepower> ; 131 bhp
<http://en.wikipedia.org/wiki/Horsepower#Brake_horsepower> ) @ 5,500 rpm
<http://en.wikipedia.org/wiki/Revolutions_per_minute> ; 185 newton
<http://en.wikipedia.org/wiki/Newton_metre>  metres (136 ft·lbf
<http://en.wikipedia.org/wiki/Foot-pound_%28energy%29> ) @ 3,500 rpm

2v NF: 100 kilowatts <http://en.wikipedia.org/wiki/Kilowatt>  (136 PS
<http://en.wikipedia.org/wiki/Metric_horsepower> ; 134 bhp
<http://en.wikipedia.org/wiki/Horsepower#Brake_horsepower> ) — Audi Duo
<http://en.wikipedia.org/wiki/Audi_hybrid_vehicles#Audi_Duo.2C_aka_Audi_100_
Avant_Duo> 

4v 7A: 125 kilowatts <http://en.wikipedia.org/wiki/Kilowatt>  (170 PS
<http://en.wikipedia.org/wiki/Metric_horsepower> ; 168 bhp
<http://en.wikipedia.org/wiki/Horsepower#Brake_horsepower> ) @ 6,200 rpm

applications

Audi 80 <http://en.wikipedia.org/wiki/Audi_80>  (NG: 09/91-11/94), Audi
<http://en.wikipedia.org/wiki/Audi_90>  90 (NG: 04/87-12/91, 7A:
06/88-12/91), Audi 100 <http://en.wikipedia.org/wiki/Audi_100>  (NF:
08/86-12/90), Audi Coupé <http://en.wikipedia.org/wiki/Audi_Coup%C3%A9>
(NG: 08/86-07/94, 7A: 11/88-07/91), Audi
<http://en.wikipedia.org/wiki/Audi_Cabriolet>  Cabriolet, Audi
<http://en.wikipedia.org/wiki/Audi_100>  100 (AAR: 12/90-07/94), Audi A6
<http://en.wikipedia.org/wiki/Audi_A6>  (AAR: 06/94-06/96) ID and data from
ETKA <http://en.wikipedia.org/wiki/ETKA> 

 

 

From: Tony Lum [mailto:tlum at flash.net] 
Sent: Saturday, January 23, 2010 12:28 PM
To: Hayes Myers
Subject: Re: AAR Engine

 


The NG motor has injectors mount in the intake manifold on this engine.
Only 87-88 NF has injectors in the head.

HTH,

Tony
'83 urquattro
'87 coupe GT Special Build (with NG engine)
'01 A4 Avant quattro 2.8