Post you Hp Per Cubic Inch.

[2strokebloke]

Post your engine's horse power per cubic inch of engine displacement, if you can include RPM do so. Also include whether the rating is from a stock or modded engine - if modified, state how.
My old Honda (P50) 0.655hp per cubic inch rpm unknown.
My Subaru 360 1.19hp per cubic inch @5500rpm - stock.
Just interested in how efficient others engines are at making power.

[Venger10]

Mitsubishi 4G63. Non-turbo. 122 cubic inches. 160 Hp at 4300 rpm.....

[2strokebloke]

So that's 1.3hp per cubic inch.

[Venger10]

Or so....

I'm assuming we are talking about Naturally-Aspirated motors only?? :alien2:

I could cheat and throw my old 4G63 turbo engine in....

Same cube size , dynoed at 322 Hp at 5500 rpm....

[2strokebloke]

Natural or forced induction is fin (though in my mind I subtract points for forced induction, or any engine that revs to rediculously high rpms)

[Jay!]

Lets see if I have this right:

1989 Honda Accord; A20A1 motor:
displacement 1955 cc = 119.327 cu.in.
'stock' hp = 122 hp @ ?? RPM
122 hp / 119.327 cu.in. = 1.022 hp/cu.in. @ ?? RPM

2001 Toyota ECHO; 2NZ-FE motor:
displacement 1497 cc = 91.372 cu.in.
'stock' hp = 108 hp @ 6,000 RPM
108 hp / 91.372 cu.in. = 1.182 hp/cu.in. @ 6,000 RPM

[2strokebloke]

Seems right to me - keep 'em coming.

[Venger10]

Originally posted by 2strokebloke
Natural or forced induction is fin (though in my mind I subtract points for forced induction, or any engine that revs to rediculously high rpms)

Whats a ridiculously high rpm?? like over 8000 ??

I do love the scream of a high revving engine , tho , especially a rotary

[crxlvr]

umm, my old engine in my 91 crx the d15b2 made 92hp at 7200rpm??? from a 1.5l

and my b16 should be putting down about 175 out of 1.6l

[PWMAN]

Originally posted by Venger10

Whats a ridiculously high rpm?? like over 8000 ??

The Honda S2000 engine's redline is at 9000 RPM, and you can still go past that too. It really depends on what engine it is. Like the B18B1, anything over 7K is screaming for that engine - And the B18C1 hasn't even made peak HP at 7K yet.

[SQ_lover]

ok, my old supra

181 cubic inches, 410 hp soooooooo.......

2.265 hp per cubic inch (turbo)

my honda now

135 cubic inches, 150???? stock

1.111 hp per cubic inch. someone check that stock hp figure.

[crxlvr]

what kinda car do you have sq?

[Ace$nyper]

I have a feeling this is just a way for 2stroke bloke to up his self esteem j/p i like this idea my d15 is like 1 to one stock 91 ci 92 hp. (can't do math so i rounded.)

[2strokebloke]

Boost my self esteem? (I don't understand)

Rediculously high rpms?, yes 8000rpm or over is rediculous.

[TheRebirth]

H22A1

Displacement = 2157cc = 132? Cu. In.
190hp @ 6,800

1.439 hp per Cu. In @ 6,800rpm


i think