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  • Users: DMan1
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  1. DMan1

    Standard WOT Exhaust Gas Temp for Chevy LT1

    Thanks Marquis and everyone! Denis Kefallinos
  2. DMan1

    Standard WOT Exhaust Gas Temp for Chevy LT1

    Thanks Mike and Pat. Typical compensations of fuel volume, pressure, and ignition timing for this forced induction application have been applied. I'm looking to know what a baseline WOT EGT would have been for this engine (in a 1998 Z28). If you know a ballpark number, that would be...
  3. DMan1

    Standard WOT Exhaust Gas Temp for Chevy LT1

    Hello, Would anyone know what is the 'oem' exhaust gas temp for a late 90's chevrolet LT1 at WOT ? We've since modified the engine with a blower, and are using EGT as a tuning indicator. But we neglected to gather baseline data for the stock motor running at stoich. Any input will be...
  4. DMan1

    Methanol - How long does it last?

    Excellent once again. Thank you Denis Kefallinos
  5. DMan1

    Methanol - How long does it last?

    Excellent, thank you. Are there any other factors or properties that degrade over time? Denis Kefallinos
  6. DMan1

    Methanol - How long does it last?

    Thanks for the safety tips. So what exactly do you mean by shelf life is over? How much moisture does it absorb? Instantaneously the entire batch is bad? I've opened these containers before and subsequently used the fuel, so I don't understand what you mean. Denis Kefallinos
  7. DMan1

    Methanol - How long does it last?

    Hello, I've got some methanol (M100) that I have been storing in plastic 5 gallon pails with the sealed lid (o-ring). Storage time has been about 3 years. Storage area is usually dark and temperatures have swung seasonally from about 0 deg F to 85 deg F. Now its time to use some of the...
  8. DMan1

    Water Injection for NA Engines, any benefit?

    Water injection is getting serious attention these days in the aftermarket (but mostly for non-NA applications). However, if you wanted to run a high compression, high timing NA engine, I think water injection would be helpful in controlling in-cylinder peak temperatures. MANY people have...
  9. DMan1

    Propane to the max

    Hi Franz, Good points on the CARB and EPA cert. I left those details out, but thats what I meant. I've seen lean burn work on a standard vehicle, but it takes some work and know how to keep the NOx down in the lean range. Probably beyond what a DIYer would want to tackle. Denis Denis...
  10. DMan1

    Propane to the max

    There must be plenty of propane conversion kits available. Impco makes both natural gas and propane kits. We converted a GM pickup truck to CNG in university, that was in 1991. Standard off the shelf parts. Same deal with propane. The challenge with all gaseous fuels is that they displace...
  11. DMan1

    Main Bearing Clearances

    Agreed, but whats too large a clearance? Denis Kefallinos
  12. DMan1

    Main Bearing Clearances

    Tbuelna, Yes I have seen this rule. Actually Clevite gives it a range of .00075 to .001 per inch of journal. this engine has a 2.5 inch journal, hence you would think clearances up to .0025 would be ok, per the rule. Its funny the gm clearances are tighter, but for a passenger car I guess...
  13. DMan1

    Main Bearing Clearances

    Greetings, How valid are factory bearing clearances when performaing a rebuild? A turbocharged GM engine I'm working on has an OEM clearance range of .0004 to .0018. Yet, when you look up replacement bearings from someone like Clevite Corp. (Clevite 77 Performance Series), they spec something...
  14. DMan1

    Old Cam, New Lifters?

    Greetings, I know that it is advisable to install new lifters when you install a new cam. Whats the current thinking on putting NEW lifters to an OLD cam? Can someone expound on this? Denis Kefallinos
  15. DMan1

    68hc11

    Pretty sure (75%) the Buick Grand National 86-87 uses 68hc11. Denis Kefallinos
  16. DMan1

    Automotive Air Filter Sizing/Flow Calculations

    Hello, I'm trying to determine how much air flow a given air filter can handle. Does anyone have any calculations to determine roughly what a filter can handle? I'm using a K&N type lubricated filter. Thanks Denis Kefallinos

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