I was reading up on the Honda 2.4L (TSX specifically) Some interesting things I found out about it. http://www.ign.com/articles/2004/04/01/2004-acura-tsx-a-smooth-operator
Piston Speed Highest to Lowest:
Designed by Sakuji Arai, known inside Honda as the father of the four-cylinder, the TSX's 2.4-liter DOHC i-VTEC has a balance shaft that revs upward of 14,000 rpm. Think that's outrageous? Arai's goal is to hit 18,000, which is F1 territory. But as it stands, the TSX engine revs high enough. Peak power comes on at 200 hp @ 6,800, torque at 166 lb-ft @ 4,500. And that's more than enough to compete with the BMW in its class, the 325i.
I have to say, I've been extremely impressed with Japanese 4 cyl engines. The Toyota 1.8l, Mazda 2.3l and Honda 2.4l are all outstanding engines. I can't think of better power/reliability than these 3 4 cyl's.
1. Honda S2000: Engine Code: F20C1 Bore/Stroke: 3.43" X 3.31" Redline: 9000rpm Piston Speed: 4965 Ft/min 2. Lamborghini Gallardo Engine Code: N/A Bore/Stroke: 3.25" X 3.65" Redline: 8000rpm Piston Speed: 4866.67 Ft/min 3. Acura Integra Type R Engine Code: B18C5 Bore/Stroke: 3.19" X 3.43" Redline: 8400rpm Piston Speed: 4802 Ft/min 4. BMW M3 (Germany) Engine Code: S54 Bore/Stroke: 3.43" X 3.58" Redline: 8000rpm Piston Speed: 4773.33 Ft/min 5. Honda S2000 2004 Engine Code: F22C Bore/Stroke: 3.43" X 3.57" Redline: 8000rpm Piston Speed: 4760 Ft/min 6. Honda Integra Type R (JDM) Engine Code: K20A Bore/Stroke: 3.39" X 3.39" Redline: 8400rpm Piston Speed: 4746 Ft/min 7. Acura Integra GSR 2001 Engine Code: B18C Bore/Stroke: 3.19" X 3.43" Redline: 8200rpm Piston Speed: 4687.67 Ft/min 8. Saleen S7 Engine Code: N/A Bore/Stroke: 4.13" X 4.00" Redline: 7000rpm Piston Speed: 4666.67 Ft/min 9. Acura TSX Engine Code: K24A2 Bore/Stroke: 3.43" X 3.90" Redline: 7100rpm Piston Speed: 4615 Ft/min 10. Suzuki Hayabusa Sport Prototype Engine Code: W701 Bore/Stroke: 3.19" X 2.48" Redline: 11000rpm Piston Speed: 4546.67 Ft/min
"Sakuji Arai, the chief engineer behind the new TSX engine, tells me that it is his favorite powerplant to date. This from the man behind the civic type R's K20C and the S2000's spectacular F20C" " For 32 years, Sakuji Arai has worked on nothing but honda four cylinder engines. He has built legends like the B16B, B18C5, and the F20C, which many consider the best 4 cylinder ever invented" "Out of all the great four cylinder engines in Arai's past, the TSX is his favorite. He's very proud of the new I-Vtec dual exhaust setup, the increased compression ratio, the use of high tensile steel in the connecting rod bolts, the new second burn system, and the new drive by wire throttle system."........... ..."But as we dig deeper into the endine, it comes out that Arai seems to be even more proud of 2 more micro developments" "I wanted the challenge of designing a near formula one engine" Arai says. "Piston speed in the TSX engine is 24m/s. Normally, piston speed is 22m/s. Adding 2 m/s is very difficult". "Another challenge was the second balance shaft. This is a high speed engine, the second balancer has 14,200 rpm. Our goal one day is to reach formula one levels, around 18,000 rpm. I'm very exited about this- my heartbeat is strong. We cant do it right now, but maybe in the future"