Engine failure... Common?
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Originally Posted by slipstream444,Sep 14 2008, 11:31 AM
- Timing chain
- There are folks with over 150k on their S2000s - most owners don't drive their cars that much. I've put over 50K on my 2003 - but the car also sat in storage for 3 years while I was in the Middle East. I've put 12k on the car since January.
-2005 is the most reliable year of the car to date according to Consumer Reports.
2004 and later cars (called AP2s) tend to burn less oil and be more reliable. One of the reasons for increasing the displacement to 2.2L from 2.0L was to lower the Redline while still producing the same HP (a little more torque). Reducing the Redline from 9000 to 8200 greatly reduces internal stresses. 800 RPM doesn't sound like much, but the forces involved in that spread are tremendous. The AP2's motor is still subjected to some incredible stresses though.
- Larry Widmer (founder) of Endyne (building race cars since the 60's and modifying Hondas since the early 70's) explained to me the AP2 motor has more N/A modification potential.
He has pushed over 430HP N/A from the AP1 motor he runs in his rail platform drag car (not an S2000 frame - think NHRA style drag car). The class he runs requires his car to use a 2.0L N/A engine and run 140 Octane race gas. He still thinks he can get more out of the car. The costs associated with running in a class above 2.0L is not worth the investment, otherwise he'd be running an AP2 motor.
His business has been extremely busy building S2000 engines. His average street N/A 2.2L produces ~325+HP.
My next project will be sending off an AP2 motor to Endyne for a full N/A build. That involves his roller-wave pistons, ultra light connecting rods, and full head work. The cost for the build is around the same for a Greddy Turbo kit installed. I'm a big fan of turbos, but I still like the idea of being N/A.
As you can surmise from all that - the AP1 and AP2 engines are quite strong motors. As stated before - most engine failures are due to operator error. This isn't an idiot-proof car and nothing will protect the motor from a mechanical over-rev or oil starvation. This car requires thought and effort to drive, and responsible ownership.
- There are folks with over 150k on their S2000s - most owners don't drive their cars that much. I've put over 50K on my 2003 - but the car also sat in storage for 3 years while I was in the Middle East. I've put 12k on the car since January.
-2005 is the most reliable year of the car to date according to Consumer Reports.
2004 and later cars (called AP2s) tend to burn less oil and be more reliable. One of the reasons for increasing the displacement to 2.2L from 2.0L was to lower the Redline while still producing the same HP (a little more torque). Reducing the Redline from 9000 to 8200 greatly reduces internal stresses. 800 RPM doesn't sound like much, but the forces involved in that spread are tremendous. The AP2's motor is still subjected to some incredible stresses though.
- Larry Widmer (founder) of Endyne (building race cars since the 60's and modifying Hondas since the early 70's) explained to me the AP2 motor has more N/A modification potential.
He has pushed over 430HP N/A from the AP1 motor he runs in his rail platform drag car (not an S2000 frame - think NHRA style drag car). The class he runs requires his car to use a 2.0L N/A engine and run 140 Octane race gas. He still thinks he can get more out of the car. The costs associated with running in a class above 2.0L is not worth the investment, otherwise he'd be running an AP2 motor.
His business has been extremely busy building S2000 engines. His average street N/A 2.2L produces ~325+HP.
My next project will be sending off an AP2 motor to Endyne for a full N/A build. That involves his roller-wave pistons, ultra light connecting rods, and full head work. The cost for the build is around the same for a Greddy Turbo kit installed. I'm a big fan of turbos, but I still like the idea of being N/A.
As you can surmise from all that - the AP1 and AP2 engines are quite strong motors. As stated before - most engine failures are due to operator error. This isn't an idiot-proof car and nothing will protect the motor from a mechanical over-rev or oil starvation. This car requires thought and effort to drive, and responsible ownership.
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Originally Posted by cdelena,Sep 14 2008, 04:13 PM
Engine failure is not uncommon... I know several guys that have had them... spun bearings, over-rev failures, scored cylinder walls, and very low oil failure.
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over rev is mechanicaly done shifting from 3rd at red line to 2nd (not on purpose trying to hit 4th gears are so close) the revlimiter cant stop the revs from the gears turning the motor over and boom its all over with i would know happend to me im happy with my f22 now
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