Do you have to do both inorder to increase your displacement or say if you just bore over to a say a 2.2L does that mean you're a 2.2L or do you have to stroke as well?absolutmugen said:you're somewhat correct, there are two ways to make more displacement, longer stroke and wider bore, the r/s ratio on the LS isn't great and is actually worse on the B20 but that just limits how high you should rev, and both these engines make most of their power in the low end anyways. If the rod ratio still depresses you but you want torque try slipping bigger sleeves in a GS-R, or boring a B16 to 86mm brings the displacement up to about 1.8 and leaves you w/ the 1.74 r/s ratio of the B16 which is nearly perfect
It depends. Think of a measuring cup, one that is a perfect cylinder. If you add more liquid to raise the water level, that's like adding stroke, if the cup gets wider, that's adding bore. Either way, you'll get more displacement by increasing either one. A .20 over or .30 over isn't gonna mean much though, not as much as increasing by the millimeter. Also note that an extra mm of stroke isn't going to yield as big an increase as a mm of bore, because of the formula. (pieR2 * stroke)JUN Civic said:Do you have to do both inorder to increase your displacement or say if you just bore over to a say a 2.2L does that mean you're a 2.2L or do you have to stroke as well?
So everything in your block is stock. Do you have the jspec B20 or usdm? I just got a b20 longblock for my gsr head. My head has been shaved by JGenginedynamics(Redline package) would you anticipate any issues from this change in height?turbob20ek said:i did my research on the b20 over the ls and i have had mine for almost a year now i take it to 8000 at the track and i go pretty often. i am building one for about 25-30 psi now but i will never forget my stock b20 it is the best set up i am havve ever had and i have been throught them all b16s b18c except a h22 and i have no desire to go down the road... that is just my 2 side of the b20
Often revs to 8k, ARP rod bolts at least? Do you have jspec or usspec b20b or b20Z? I have the B20b and I am going to have a stock block setup w/my gsr jg shaved head and would love to rev to 8k w/out worries. Is there any secret to this or advice that could help me on my current project? Appreciate your input.The b20b's rev limit is set at 6200 from the ecu and the z6800. Are there any notable differences?6 Speed cl~S said:so all yu have is a b20/vtec turbo...with all stock internals???...pushing 300 horses!!! das amazing! and it pulls 12's
MGN_CTR said:i have a 97 Civic with a B20B bottom, with aria NA pistons and a shaved Type R head n i dun c ne problems with 8000revs. mines easily revs over 8000. i also have a Unorthodox pulley so dat might make the revs a lil faster and higher