I think we know the form of these threads by now! The only difference here is I know narthin about these 16v engines. So contributions needed! The background to these engines are that they're known as the EA111 series of engines, and they started life in the Audi 50 in the 1970s. Over time they evolved & some of that story is told here. Then VW saw the light, and put a 16v head on them. Knowledge dump so far: Engine code Years Model fitment Capacity Bore Stroke Power Torque C/R Comments AFH Polo 1400cc Lupo GTI 1600cc Mk4 Golf 1600cc
The story I was told about this engine - whole car was brought from Germany (or Belgium*), Volkswagen Motorsport and it has 1,6 liter engine with 160 bhp. Lupo Cup. There were two of them. Another were in a poorer complement and had 140bhp. I'm not sure that all I've heard about power is true (could be a bit more powerful and it was suppressed), but I have no doubts that those cars were somewhere near Volkswagen Motorsport. During one rally event I've met person who told me, that he is working in Germany as a mechanic and servicing Polo. He said, that the engine is used such as in fourth Golf and that it has 215bgp. In one website I found said: "the 1.6 16v heads are rubbish, you can use the GTI bottom end with the earlier 1400 16v head on it to good effect. 150bhp on standard injection. And added picture: Underneath were written: "thats nicks car, it was a 1400 16v, its now a gti bottom end bored to 1700 using an AFH head on bodies, allegedly 215bhp+" So, it lets me think that person I've met were talking about this particular engine type (at least head). I was also told that it is possible to get even more power, but reliability gets under question mark. I was helping one team some years ago and it used engine like this: Part in green quadrangle indicates variable timing system. 1,6 l engine with 400mm ITB, one Schrick cam (another stock) and 4-2-1 headers delivered 160bhp and 170nm. All other internals were stock. Power output could be bigger, but it was sacrificed in favor of reliability. Shifting at 7000rpm up to fourth gear and in fifth for couple seconds it runs over 7000rpm up to 7500 - 8000 rpm (depends on track). *edited
I found one of those Lupos: Production date: 2001 Weight: 880 kg Wheel side: Left Shock absorbers: Bilstein Power: 170 Class: 1600 Engine :4 Cylinder 1.6 L Lupo GTI Motor Built According BTC to regulations. Power : 170 PS Max.RPM :8500 R/min. Engine Control Unit: ACS Engine Management. Gearbox:6 - Speed Gearbox with Racing Ratios and LSD. Clutch: Sachs Sintermetall. Exhaust: Devil Exhaust HJS Motorsport - Catalytic Converter. Instrumentation : Stack - Display shows important driver data such as RPM ; Oil Temp , Oil Pressure , Water Temperature , Fuel Pressure , Lap Times , Speed , Lateral Acceleration , Brake Pressure and Seering Angle . Suspension: Bilstein/HR Height Adjustable Racing Suspension. Brakes: 4 - Piston - ATE Brake Calipers with 295mm ATE Power - Discs Brake Pads: Pagid . Car is fully rebuilded and prepared for long distance race. Also we have lot spare parts and racing wheels. >>>http://www.racecarsforsale.com/saloon-cars/volkswagen-lupo-cup.html
Taken from wikipedia mk4 1.6 16v blocks are 1598cc codes AUS, AZD,ATN,BCB power 77 kW (105 PS; 103 hp) @ 5700 rpm torque 148 Nm (109 lbft) @ 4500 rpm. These engines had two timing belts, one main one that drives the inlet cam then the other one runs behind the inlet pulley driving the exhaust cam. The cam cover and cam caps are all in one, holding the cams in place, so to remove the cover you'll need to reset the belt timing and loosen it just to remove the cover. Great engines LOL
Could it be alloy block used from Golf IV? You are right. I've messed up, but I have excuse. Discussion I've mentioned were taken during the trip back home after long rally weekend (28+ sleepless hours), so... Some things I still remember very well - 1,6 liter and 215 bhp. Wasn't very interested in details because of tiredness, but after two months there will be rally once again and if I'll be invited to take part in a team, I'll try to get as much information as it possible.
mk4 1600 16v codes are AEH, AKL, AKS, APF and AVU from 1997 to 2003, C/R 10.2:1 From 2003 to 2006 BCB is 11.5:1 C/R.
I have measured 1.6 16v engines with variable cam timing (if I remember correctly A2Y engine code): Intake 29.8mm Exhaust 26mm
Sorry to come back to that DRV But in your very first thread you were all about big valves And now you are talking 200 bhp with the smallest valves VW are offering You can then see that there are ways to get power out of smaller valves
It seems to me that small block heads could have very good design and it lets engine produce more power than EA827 16v heads with bigger valves. Another thing in this story - are those valves really such small? Maybe power outputs gained through valve enlargement. If not then it means that heads are extremely good in design and in air flow figures.
http://www.polofahrer.com/viewtopic.php?t=819 http://z3.invisionfree.com/Mk1_Polo_Club/index.php?showtopic=787 ( AFH / CBR 1000 hybrid engine ) SORG motorsport ( Roland Hurlebaus) AFH grH 1300 /16V - 197 PS @9800 rpm ( Bergcup) useable powerband 6500-11400 rpm 1299 cc Bore 75.50 / 75,80 Stroke 72.00 mm CR 12,5 Valves inlet 31 / 5 - exhaust 27 / 5 Followers 31 mm OR 32 mm Cams inlet 320 / 312 degr // exhaust 312 / 300 degr 4.in 1 exhaust 45 mm > 60 mm 45 mm ITB`s Electic waterpump -------------------- IIRC Valves on 1400/ 1600 engines were 32 / 28 mm ( Sorg )
According to this site >>>Valve size AFH engine should have 29.5mm intake valves with steam diameter 6mm, but not 31mm and 5mm. 200bhp+ makes sense.
EA111 Expanded table for OE outputs. Information complied from various VW publications. NASP Engine code + valves Years Model fitment Capacity cc Bore mm Stroke mm Power PS@rpm Torque lbft@rpm C/R Comments AEV(8v) 6N Polo 1043 75 59 45@5200 56@2800 10:01 derivative of early 85 MK2 Golf 1.3 ADX(8v) 6N Polo 1296 76.5 70.5 55@5200 75@2800 10:01 AEX(8v) 97-00? 6N Polo 1390 76.5 75.6 60@5200 86@2800 10.2:1 RON 95 AFH (16v) 04/96-12/99 Polo 1390 76.5 75.6 100@6000 95@4500 10.5:1 Bucket tappets, RON 98 AKQ(16v) 1J Golf, 6N Polo, Lupo 1390 76.5 75.6 75@5000 95@3200 10.5:1 Roller tappets, modular head, tubular header, die cast aluminium block, RON 95 ANM (16v) Lupo 1390 76.5 75.6 100@6000 95@4500 10.5:1 Like AKQ roller tappet + uprated pistons, cylinder head , revised cam timing, inlet and exhaust manifolds, 98 RON. ARR(16v) 1390 76.5 75.6 105PS@6200 97@4500 11.5:1 FSI, Wall guided injectors, i-vvt. AEA(8v) 6N Polo 1598 76.5 86.9 75@5200 95@2800 10:01 RON 95 AJV(16v) 1J Golf, Bora 1598 76.5 86.9 120@6200 110@3400 10.6:1 Like 1390 cc roller tappet RON 98 ARC/AVY(16v) 10/99-04/00, 05/00-10/01 6N Polo GTI 1598 76.5 86.9 125@6500 114@???? i-vvt RON 98
