LT5 Motor #011 Data To Look At - ZR-1 Net Registry Forums

Blue Flame Restorations · 03-30-2011

I have access to an early LT5 engine block. It has #011 stamped into it and also hand written in paint pen (Scrapped 12/87). This shoudl be a PhaseI or PhaseII block. It is built for simplex chains.

Just a few numbers...
Block 10090511
Block hand scribed 12 23 87 53076
10090508

Could this be the 11th LT5 produced at Lotus? I will chack my Progam Status report for further data.

Blue Flame Restorations · 03-30-2011

I checked my Program Status Report. It looks like this was the 11th PhaseII engine block. There is some data in the report for two factors.

I knew that book would come in handy one day for something.

bdw18_123 · 03-31-2011

Pics?

Blue Flame Restorations · 03-31-2011

Quote:

Originally Posted by bdw18_123

Pics?

I'll work on it.

gbrtng · 03-31-2011

Any idea where those prototype blocks were cast?

Blue Flame Restorations · 03-31-2011

Quote:

Originally Posted by gbrtng

Any idea where those prototype blocks were cast?

I'm sure I can find out.

scholtmj · 03-31-2011

Could it be one of the 350 hour durability test engine?

The chart Engine Test Bed Hours - 1987 has engine no. 011 being used for "Chevy 350" which I assume to be the 350 hour durability test. ("page" 3,002)

Later on "page" 7,005 there is a description of engine 011, build 1, phase 1 on the engine test stand. Start date 9/12/86, removed from test bed 12/3/87 after a broken timing chain. 92.66 total running hours and a few problems along the way!

Blue Flame Restorations · 03-31-2011

Quote:

Originally Posted by scholtmj

Could it be one of the 350 hour durability test engine?

The chart Engine Test Bed Hours - 1987 has engine no. 011 being used for "Chevy 350" which I assume to be the 350 hour durability test. ("page" 3,002)

Later on "page" 7,005 there is a description of engine 011, build 1, phase 1 on the engine test stand. Start date 9/12/86, removed from test bed 12/3/87 after a broken timing chain. 92.66 total running hours and a few problems along the way!

That was one of the data points that I found in the Status report, also.

I hope you like the Report. Pretty cool stuff, huh?

scholtmj · 03-31-2011

Quote:

Originally Posted by Blue Flame Restorations

That was one of the data points that I found in the Status report, also.

I hope you like the Report. Pretty cool stuff, huh?

Cool stuff indeed! It's very curious to see some engines have problem after problem on an engine dyno, and others run 15 to 20 hours and installed in vehicles for testing.

Truly an amazing engine with a fascinating story.

Blue Flame Restorations · 03-31-2011

Quote:

Originally Posted by gbrtng

Any idea where those prototype blocks were cast?

The PhaseI and PhaseII blocks were cast in the UK, according to Geoff.

03-30-2011	#1
Blue Flame Restorations Join Date: Feb 2010 Location: Pendleton, IN Posts: 3,904	LT5 Motor #011 Data To Look At I have access to an early LT5 engine block. It has #011 stamped into it and also hand written in paint pen (Scrapped 12/87). This shoudl be a PhaseI or PhaseII block. It is built for simplex chains. Just a few numbers... Block 10090511 Block hand scribed 12 23 87 53076 10090508 Could this be the 11th LT5 produced at Lotus? I will chack my Progam Status report for further data. __________________ 1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project

03-30-2011	#2
Blue Flame Restorations Join Date: Feb 2010 Location: Pendleton, IN Posts: 3,904	Re: LT5 Motor #011 Data To Look At I checked my Program Status Report. It looks like this was the 11th PhaseII engine block. There is some data in the report for two factors. I knew that book would come in handy one day for something. __________________ 1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project

03-31-2011	#3
bdw18_123 Join Date: Apr 2009 Location: Prather, CA Posts: 809	Re: LT5 Motor #011 Data To Look At Pics? __________________ [IMG]http://i13.photobucket.com/albums/a292/bdw18_123/_zr1netforumsigphoto.jpg[/IMG][B] 1990 Corvette ZR-1 [/B][I] White/Flame Red, #2299, mostly stock, 144K miles.[/I] -Cams timed to the '93-'95 405HP LT5 stock timing. -IAT sensor relocated to below front bumper. -Haibeck hoops installed in airduct. -OBX cat-back exhaust. [COLOR=DarkRed][B](SOLD - December 2012 [/B][/COLOR][COLOR=DarkRed][B]:hello:)[/B][/COLOR] 1993 Corvette Coupe Black/Black, 6-speed (SOLD - October 2009 :hello:)

03-31-2011	#5
gbrtng Join Date: Feb 2006 Location: San Antonio area Posts: 1,179	Re: LT5 Motor #011 Data To Look At Any idea where those prototype blocks were cast? __________________ “Buy the best example of what you want, and pay whatever it takes. That way, you cry only once.” ~ Bruce Meyer

03-31-2011	#7
scholtmj Join Date: Nov 2008 Location: Grand Rapids, MI Posts: 384	Re: LT5 Motor #011 Data To Look At Could it be one of the 350 hour durability test engine? The chart Engine Test Bed Hours - 1987 has engine no. 011 being used for "Chevy 350" which I assume to be the 350 hour durability test. ("page" 3,002) Later on "page" 7,005 there is a description of engine 011, build 1, phase 1 on the engine test stand. Start date 9/12/86, removed from test bed 12/3/87 after a broken timing chain. 92.66 total running hours and a few problems along the way!