difference between L92 and LS3 - Lateral-g Forums

ProdigyCustoms · #1 07-29-2010, 07:10 AM

On street motors unnder 420" I like the stock heads better then worked heads.

Pantera EFI · #2 08-01-2010, 08:42 AM

We have sold our ECU-882C-1 to WaterThunder.com for over 400 L-92 engines that Dave "refits" into Air Boats.

This is what I found:

The stock weight valves will "rev" to over 7000 RPM without breakage.
The Truck Intake is always changed to the LS-3 Corvette Intake.
The Valve Springs are always replaced with "yellow" springs OR "duals" when cam lift exceeds the "yellows" .580" safe lift.
When VVT is operational (pin lock disengaged) the Pantera EFI "limiter" is used to limit Retard/Advance.
(be aware, Comps will allow for FULL ADVANCE to 4 degree Advance ONLY)
The Fuel Injector size is increased in some cases.
The Reluctor to Crankshaft reference needs to be +1.75 to +1.50. (stock reference is retarded)
Safety dictates REMOVAL of the DBW throttle body electric motor with a DBC shaft.
Ignition timing needs to modest, in the 28 degree range.

Remember the L-92 has a HIGH VOLUME oil pump the can empty some "after market" oil pans.

Lance

Ron in SoCal · #3 08-01-2010, 09:44 AM

There's a comment I hadn't heard before...why does safety dictate removal of the DBW? I was planning on using it.

ProdigyCustoms · #4 08-01-2010, 10:01 AM

Quote:

Originally Posted by flash911

There's a comment I hadn't heard before...why does safety dictate removal of the DBW? I was planning on using it.

The drive by wire is of zero concern is a factory ECM is used. 99% of the LS motors we sell and install use a factory / GMPP ECM.

As Pantera mentions, I too have concerns with aftermarket ECMs and DBW even though some aftermarket systems do have DBW capabilities.

Ron in SoCal · #5 08-01-2010, 10:28 AM

Thanks Frank. One of these day you should write a book...

Pantera EFI · #6 08-01-2010, 12:10 PM

At the OEM level, I know about 9,000,000 reasons why it was a BAD idea !

Lance

Ron in SoCal · #7 08-01-2010, 07:44 PM

Quote:

Originally Posted by Pantera EFI

At the OEM level, I know about 9,000,000 reasons why it was a BAD idea !

Lance

Lance - please exlpain that one. I'm sure you have experience, so please share?

**GregWeld** · #8 08-01-2010, 07:43 PM

Good info Lance!