lowers it by .2 by my calculations on that site. stock b16 head on stock b18c1. now if you go changing pistons at the time of the swap i can def see where you could get crazy. b16 block with gsr head and p30's get you 10.65:1...rad
lowers it by .2 by my calculations on that site. stock b16 head on stock b18c1. now if you go changing pistons at the time of the swap i can def see where you could get crazy. b16 block with gsr head and p30's get you 10.65:1...rad
How did you get 10.65:1?Originally Posted by japan4racing
Block = B18C1/C5
Head = B16a/b-B18c5
Piston = p72-A0 (USDM B18C1)
Head Gasket Thickness = OEM B-series 3-layer
Piston-to-Deck Height = OEM B18A/B/C1/C5 - B20B/Z
Compression Ratio = 9.80
Block = B18C1/C5
Head = B16a/b-B18c5
Piston = p73-A0 (USDM B18C5)
Head Gasket Thickness = OEM B-series 3-layer
Piston-to-Deck Height = OEM B18A/B/C1/C5 - B20B/Z
Compression Ratio = 10.60
instead of gsr bock with b16 head i swapped them around and tossed some p30's in the mixOriginally Posted by speedminded
Block = b16
Head = b18c1
Piston = p30
Head Gasket Thickness = OEM B-series 3-layer
Piston-to-Deck Height = OEM b16
Compression Ratio = 10.657
b16 block with a p72 head?! That would be retarded, GS-R heads can't breath like a b16/b18c5. Higher compression isn't always better if the head doesn't flow well.Originally Posted by japan4racing
you got me all wrong bro..reading comprehension owns j00! it was just something i noticed. i was not reccomending it all...jeebus you guys need to calm it down a bit! let me make it more clear.....i made an observation that that combo made a slightly higher c/r. i found it interesting so i shared. you guys dont need to try and prove your uber elite internal combustion engine knowlege to me.Originally Posted by speedminded
Then use a b16/b18c5 head slightly milled or a thinner head gasket or a taller piston and have way more than 10.6:1...the GS-R head sucks, sure it's a higher compression but its smaller valves and does not breath as well.Originally Posted by japan4racing
hey guy..it was an observation. im not trying to sway the honda world into building a motor like this. i am very aware of how to raise and lower compression. give it up already. cant a man make an observation without all the vtak boys jumping through hoops to make a point? i never said a gsr head was good..where do you kids come up with this ****? its like you read what someone says and in your mind you change it to somehting that you can argue about....i dont get it.Originally Posted by speedminded
Originally Posted by speedminded
But doesnt the p72 head have the flat edges on on the combustion chamber which reduced risk of detonation?