TFS 235's on 404 or 408?
07-12-2014, 04:07 PM
#1
TFS 235's on 404 or 408? Cross post from the gen IV section.
Heres the rundown guys. I just pulled the LS2 404 from my car due to the blander spinning on the crank. For the second time. So while i have it apart I'm either going to part it out and start fresh, or try and get the crank fixed and key it with a new ATI damper. Also going to do new rings and bearings.
So far everything looks good inside the engine. The mains will probably need to be turned due to very finite scratches. Rods looks good as do the pistons. Cylinder also looks excellent minus the little bit of wear from the stroke side of the piston. Currently the pistons have Total Seal gapless rings set at .024/.018. From day one the engine has smoked and consumed a good bit of oil. But has always ran strong. Making 500 to the tires with patriot stage III heads. I sold those heads and installed the Trickflow 235's and lost 12hp, making only 487.
So there lies the big question. Why did the heads hurt the power? Is it because the 4.010" bore isn't enough for the 235's? Would a 4.030 bore really help that much? Also would a 4.060 help even more? But will that work with a 200hp shot of nitrous? And would I still have the same oil control issues?
What set of rings could i go with to help control the oil issue? I want to make at least 530 to the tires.
Any recommendations?
Heres the rundown guys. I just pulled the LS2 404 from my car due to the blander spinning on the crank. For the second time. So while i have it apart I'm either going to part it out and start fresh, or try and get the crank fixed and key it with a new ATI damper. Also going to do new rings and bearings.
So far everything looks good inside the engine. The mains will probably need to be turned due to very finite scratches. Rods looks good as do the pistons. Cylinder also looks excellent minus the little bit of wear from the stroke side of the piston. Currently the pistons have Total Seal gapless rings set at .024/.018. From day one the engine has smoked and consumed a good bit of oil. But has always ran strong. Making 500 to the tires with patriot stage III heads. I sold those heads and installed the Trickflow 235's and lost 12hp, making only 487.
So there lies the big question. Why did the heads hurt the power? Is it because the 4.010" bore isn't enough for the 235's? Would a 4.030 bore really help that much? Also would a 4.060 help even more? But will that work with a 200hp shot of nitrous? And would I still have the same oil control issues?
What set of rings could i go with to help control the oil issue? I want to make at least 530 to the tires.
Any recommendations?
07-14-2014, 06:48 PM
#2
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Sorry I can't help, but I do have a question. I have an 01' Z06 going in the shop next week for a ring job. We are going with total seal rings to fix my cars smoking/oil consumption. This has me worried now. Any idea why your motor didn't seal up with these rings?