ok, my bad dude.
What Engine Do I Get?!?!
- Thread starter 98hatchfreak
- Start date
With a B18C1 you have a higher compression ratio and therefore can not run as much boost as a motor (B18B1) with a lower compression ratio. If you boost a stock B18C1 as much as stock B18B1 at it's max factory boost limits...your gonna f**k up the B18C1. The compression ratio for a B18C1 is 10.0:1, and the compression ratio for a B18B1 is 9.2:1Originally posted by 99ExCoupe
Dood....did you read anything of what I said? With a B18C1 you have a higher compression ratio and therefore can not run as much boost as a motor (B18B1) with a lower compression ratio. If you boost a stock B18C1 as much as stock B18B1 at it's max factory boost limits...your gonna f**k up the B18C1. The compression ratio for a B18C1 is 10.0:1, and the compression ratio for a B18B1 is 9.2:1. People will argue that a B18C1's head flows better...and it does. But with all that money you saved getting a B18B1....go get a port n polish on the head.
note for the n00bs: VTEC (variable valve timing electronic control) is when the third lobe on a vtec cam is activated by higher oil pressure. Oil pressure goes from 7 psi to 57 psi when vtec engages...which bumps up the compression ratio.
Because the third lobe is larger than the other 2 lobes, it basically turns the cam into a larger profile cam. Vtec engages usually at 5500 rpms on SOHC, and around the same for a B series.
thats what i was tryin to say in my posts, but somewhere along the way, it got mixed up
but even if u only boosted a b18c1 say 6psi or even less wouldnt it still make more power than a b18b?
im just curious...cuz the b18b sounds like the engine i might wanna go with
im just curious...cuz the b18b sounds like the engine i might wanna go with
if both motors are stock, with the same amount of boost, lets say 6 psi, then i would think the b18c will prevail. basically if you jus slap on a turbo on both. but if you raise the boost on both motors on the same stock engine, you should be able to get a few more pounds of boost, SAFELY, out of the b18b because of the lower compression. but if both are built, because you would change compression with the forged pistons, the ls has no advantages. IMO
The B18B1 also has an atvantage with longer gears....so you can stay in boost longer....TRANNY makes a big difference. You could always get a B18C1 with a B18B1 tranny, and build the bottom end. Then you would pay out your ass...but beat the B18B1 with the B18C1. No VTEC rules...
this is what i thought...plus i like revving high so i think that for me the b18c would be a better choiceOriginally posted by sleeepy808
if both motors are stock, with the same amount of boost, lets say 6 psi, then i would think the b18c will prevail. basically if you jus slap on a turbo on both. but if you raise the boost on both motors on the same stock engine, you should be able to get a few more pounds of boost, SAFELY, out of the b18b because of the lower compression. but if both are built, because you would change compression with the forged pistons, the ls has no advantages. IMO
if you want to accelerate faster, you want lower gears. period. doesnt matter if you have n/a, boost, n2o, whatever. yea with longer gears your in boost longer, but thats because your engine has less mechanical advantage and is acclerating slower. with lower gears, you get in boost faster, and you accelerate faster. the only thing longer gears are good for is higher top speed and better fuel economy.
The B18B1 also has an atvantage with longer gears....so you can stay in boost longer....TRANNY makes a big difference. You could always get a B18C1 with a B18B1 tranny
thats what i thought
thats what i thought
this makes sence too. especially in gt3 gameOriginally posted by handlebarsfsr
if you want to accelerate faster, you want lower gears. period. doesnt matter if you have n/a, boost, n2o, whatever. yea with longer gears your in boost longer, but thats because your engine has less mechanical advantage and is acclerating slower. with lower gears, you get in boost faster, and you accelerate faster. the only thing longer gears are good for is higher top speed and better fuel economy.