100bhp per litre
Discussion
Honda K20A2 (UK) - 98.5 BHP / L - Civic Type R
Honda K20A (JDM) - 110 BHP / L - Civic Type R (Japanese)
Honda B16B - 116 BHP / L - EK9 Civic Type R
Honda F20 - 120 BHP / L - S2000
I may be thinking in PS for the last two.
Since the 360CS has 118 BHP/L the S2000 motor takes the crown so far (for a factory engine at least)....
Jim
Edited by JimboCTR on Wednesday 13th December 15:55
v8owner said:
jeremyc said:
'Fraid not: the Caterham R500 has 128 bhp/litre. 
I confused by the caterham? whats the engine size and power then jeremy? I cant find it on caterhams website?
You'll not find it on their current website since they no longer make it.
Damn bike engines.... I thought we were ignoring them! Different emission/noise rules and all that.
As for the Caterham, its a fair point but I would guess they are pretty much a handbuilt race engine built in very small numbers. Not a completely fair comparison, I would also imagine they do not have to meet the same regs as a mass produced engine either? What warantee do they offer on the engine on them BTW? I would also think that you are at the extreme limits of the K series at those sorts of power where I know of loads of K20As and F20 Hondas that run more than 128bhp/l with a few tweaks.
Jim
As for the Caterham, its a fair point but I would guess they are pretty much a handbuilt race engine built in very small numbers. Not a completely fair comparison, I would also imagine they do not have to meet the same regs as a mass produced engine either? What warantee do they offer on the engine on them BTW? I would also think that you are at the extreme limits of the K series at those sorts of power where I know of loads of K20As and F20 Hondas that run more than 128bhp/l with a few tweaks.
Jim
Edited by JimboCTR on Wednesday 13th December 17:05
JimboCTR said:
Damn bike engines.... I thought we were ignoring them! Different emission/noise rules and all that.
I know of loads of K20As and F20 Hondas that run more that 128bhp/l with a few tweaks.
Jim
I know of loads of K20As and F20 Hondas that run more that 128bhp/l with a few tweaks.
Jim
And very poor torque! In my opinion, I don't think that bhp/litre is a good benchmark just produce mediocre volumetric efficiency and make it turn as fast as you can. The area under the power curve speaks more. I thing the 997 GT3 is probably the best engine on sale, 115BHP/Lt and 83lb/ft.
Steve
jeremyc said:
JimboCTR said:
Since the 360CS has 118 BHP/L the S2000 motor takes the crown so far (for a factory engine at least)....
'Fraid not: the Caterham R500 has 128 bhp/litre. Hayabusa has 134 BHP/litre in standard trim, 160 BHP/litre in a sort of fast road/semi race trim and 191 BHP/litre in 13,000 rpm race trim. Caterham R500 is so old tech, almost old skool now
busa_rush said:
Hayabusa has 134 BHP/litre in standard trim, 160 BHP/litre in a sort of fast road/semi race trim and 191 BHP/litre in 13,000 rpm race trim. Caterham R500 is so old tech, almost old skool now
The latest Busa has only 78lb/ft per litre and like all bike engines it is all about getting it to spin fast. Like I said it is not a good measure of how good an engine is. There sone torquey bike engines though (i.e over 80lb/ft per litre)
The Rover based engine is not as old tech as you think. It still uses a construction meathod that is very advanced. If only the manufacturing quality was better from Rover in the first place they would have a better reputation.
A good production engine should have at least 100BHP/Lt and at least 80Lb/ft per lit produced below 6000rpm.
Steve
stevesingo said:
A good production engine should have at least 100BHP/Lt and at least 80Lb/ft per lit produced below 6000rpm.
Steve
Steve
Why would a production engine need such high bhp/litre ? If you're talking about a standard prodction engine then they are primarily designed to operate with minimal servicing, probably a degree of neglect, poor quality oil and fuel, work hard from cold, not be cooled down properly etc and designed to be operated by a wide variety of people, incuding people like my gf who has no interest in engines, over a life of 150K miles. Not my idea of a fun engine
busa_rush said:
stevesingo said:
A good production engine should have at least 100BHP/Lt and at least 80Lb/ft per lit produced below 6000rpm.
Steve
Steve
Why would a production engine need such high bhp/litre ? If you're talking about a standard prodction engine then they are primarily designed to operate with minimal servicing, probably a degree of neglect, poor quality oil and fuel, work hard from cold, not be cooled down properly etc and designed to be operated by a wide variety of people, incuding people like my gf who has no interest in engines, over a life of 150K miles. Not my idea of a fun engine
The E46 M3, e60 M5 and RS4 are just three examples of such engines. All of which are on variable service intervals (which is neglect if you ask me), and are intended to be used by people that haven't the first idea about engines or mechanical sympathy, i.e 99% of the public. I doubt that any of them has a shorter intended lifespan than the cooking models. The only snag is cost of designing and producing these engines.
Steve
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