Recent content by Nick Garrett

Question and you're probably the person to ask on here. HPL-BAS 15w50 vs Driven DT50 for a street/strip, loose clearance all aluminum block engine. It is stored 4 months during winter. Between those 2 options which would you recommend? Both look good but just would like a 2nd opinion to push me...

I have not. Is HPL "high performance lubricants" and what is their association with HPL Superior Lubricants? Cause that latter is Harry Hruska. Ex owner of Precision Turbo that was right here in my hometown of Hebron, IN. I worked for him for a few years and if i had not signed a confidentiality...

What are his clearances? My engine builder is a well known very reputable builder in the LS world. I've ask Texas Speed, Steve Morris, Borowski, AES to name a few and they all agreed with block material and clearances that im borderline 50 weight but agree Morel hydraulic lifters hold a tigh...

Driven emailed me back. He simply sent DT50- Cst 100C is 16. That was all the data he supplied. Does anyone have the data sheet for Driven DT50 15W50? Thanks for all the replies. You all have been much help so far.

I appreciate this info. Thank you

I agree fully. I just thought instead of searching through all the data on different oils someone here might have VOA's or know personally of an oil that comes in close at 16.3 that i could try.

Yes Morel said my open and closed pressures are fine for the lifter and camshaft lobe ramp rate. Preload is .060, morel spec, with a .120 full plunger travel. So halfway. This has been double checked by me personally with a dial indicator. Oil will changed every 3,000 miles or 6 months. Which...

Its a gen 3 LS1. No i do not though. These engines run 220F at operating temperature, so we are guessing at the oil temps based on the fact we will see 220F coolant temps. The oil temps will obviously exceed the coolant temp. Especially on hard pulls. Once i have it running I'll monitor oil...

I agree. A lifter change may be in order if i experience pump up issues with an oil over 15Cst at 100C. Just wanted too see if anyone could recommend a *w50 with a rating closest to 15 to try.

I am certainly not against a *w40 but through all my research based on block material being aluminum, oil temps will exceed 220F, clearances, rpm, etc i keeping finding exactly as my engine builder stated. A *w50 oil is recommended. So im hesitant to go the *w40. Thanks again everyone

Thanks everyone. This is why i asked this question here. I understood I was in a tight situation based on needing a Cst of 15 or under at 100C but the bearing clearances, block material, and oil temperatures i expect to see required a *w50 weight. I was basically hoping to find if someone knew...

Morel hydraulic lifters hold some of the tightest internal tolerance and orfice size in their categories. This is known thing amongst many. Even Lake Speed Jr (Driven) has put out articles about hydraulic lifters and how their Cst value plays a big role in the lifters ability to pump up...

5.7 L, 6500-7000 rpm, dual valve springs (open 380 lbs, seat 155 lbs), cam is 228/232 .606/.600 at .050. Thanks

Morel hydraulic lifters hold some of the tightest internal tolerance and orfice size in their categories. This is known thing amongst many. Even Lake Speed Jr (Driven) has put out articles about hydraulic lifters and how their Cst value plays a big role in the lifters ability to pump up...

Hey everyone my 1st post. I have a question about an oil recommendation for my application. I have an all aluminum LS1 with .0024 main bearing clearance and .0025 steel rod bearing clearance (loose for an aluminum engine). Oil temperatures of 220+ degrees fahrenheit. Has a high volume melling...