Stock crank, forged engine--bearings, oil pump, and ring gap for boost?
12-14-2010, 03:49 PM
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Stock crank, forged engine--bearings, oil pump, and ring gap for boost? Im in the process of collecting parts and had a few questions..
1. What main and rod bearings do you guys with stock cranks use for these set ups?
2. What ring gap is ideal for a daily driver car that will see 20psi at the track? Im using the wiseco stainless/napier rings and I dont want a puffer...but it will see a bunch of boost at some point in its life.
3. What oil pump do you use?
1. What main and rod bearings do you guys with stock cranks use for these set ups?
2. What ring gap is ideal for a daily driver car that will see 20psi at the track? Im using the wiseco stainless/napier rings and I dont want a puffer...but it will see a bunch of boost at some point in its life.
3. What oil pump do you use?
12-15-2010, 01:30 PM
#5
Clevite OEM replacement bearings here - nothing fancy.
LS6 Oil Pump. I'm not a fan of aftermarket pumps. In my opinion you don't need the extra pressure if you go with stock clearance bearings and I have more faith in GM QA.
Follow the ring manufacturers recommendations for gap. I got a little too smart and went with a slightly smaller gap than the OEM recommended because I didn't want a puffer (24 I think). Both my #7 and #8 cylinders have a groove on the cylinder wall that I think is from ring contact.
Anyhoo - despite the #7 and #8 groove the motor has held together for almost 30k at 700 HP.
LS6 Oil Pump. I'm not a fan of aftermarket pumps. In my opinion you don't need the extra pressure if you go with stock clearance bearings and I have more faith in GM QA.
Follow the ring manufacturers recommendations for gap. I got a little too smart and went with a slightly smaller gap than the OEM recommended because I didn't want a puffer (24 I think). Both my #7 and #8 cylinders have a groove on the cylinder wall that I think is from ring contact.
Anyhoo - despite the #7 and #8 groove the motor has held together for almost 30k at 700 HP.
12-15-2010, 06:25 PM
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hmm Well reason for higher pressure is from the turbo. Before the turbo I had great oil pressure. After I added the turbo the pressure dropped. Also, ill be adding an oil cooler which I hear will drop pressure even further.
