Block swap LS1 to LS3, but how do i get more revs?
07-31-2008, 01:42 PM
#1
10 Second Club
Thread Starter
Block swap LS1 to LS3, but how do i get more revs? Hi Guys, i have posted this also in GenIV but i might catch some other ideas, apologies if you've seen it there. I have swapped my LS1 block for LS3 thanks to outrageous oil consumption. I dynoed her two days ago and this was the result, the car (2600lbs) has monster torque but does die, i think too early. I modified the DART 225's i have on by smoothing the casting flashes in the runners and i opened the combustion chambers out to 4.070 and cc'd the chambers from 62cc to 65cc, this took comp ratio from 11.2 to 11.5. My LS2 manifold is lightly ported, as in the 3 moulding flashes have been leveled out so they are smooth. Exhaust manifolds are not ideal as they are a TIGHT fit but are at least 20" long and they are 1 3/4" dia. I would like her to rev to 6500 without the power dieing so soon. CRANK POWER BTW!!
08-01-2008, 12:27 AM
#5
Hi Guys, i have posted this also in GenIV but i might catch some other ideas, apologies if you've seen it there. I have swapped my LS1 block for LS3 thanks to outrageous oil consumption. I dynoed her two days ago and this was the result, the car (2600lbs) has monster torque but does die, i think too early. I modified the DART 225's i have on by smoothing the casting flashes in the runners and i opened the combustion chambers out to 4.070 and cc'd the chambers from 62cc to 65cc, this took comp ratio from 11.2 to 11.5. My LS2 manifold is lightly ported, as in the 3 moulding flashes have been leveled out so they are smooth. Exhaust manifolds are not ideal as they are a TIGHT fit but are at least 20" long and they are 1 3/4" dia. I would like her to rev to 6500 without the power dieing so soon. CRANK POWER BTW!!
