Lotus boxer LT-5 Engine - Page 5 - ZR-1 Net Registry Forums

LGAFF · 03-12-2012

LGAFF · 03-12-2012

I have not viewed these let me know if they are working....vids of the engine

VetteMed · 03-12-2012

Looks like both vids work fine, Lee. Thanks for sharing.

XfireZ51 · 03-12-2012

Nice idea for a mid-engine. Low CG.

LGAFF · 03-12-2012

Boxer Firing order
1,4,7,3,8,5,2,6

LT-5
1,8,4,3,6,5,7,2

USAFPILOT · 03-13-2012

In a boxer engine aren't eh cylinder supposed to fire at each other. I always heard that the Ferarri Testarossa Flat 12 was not a true boxer engine, even though all 12 cylinder are horizontally opposed to each other. I think the Subaru motors might be a true boxer design.

Either that or whoever told me that was flat wrong and I believed them.

LGAFF · 03-13-2012

Yes that is true a true boxer is different than a 180 degree engine

LGAFF · 03-18-2012

Well I think these are going back, the firing order would indicate a true boxed engine.....which means it would fire on the same side in consecutive order....a true flat plane would go L-R-L-R....so no chance these are usable.

Paul Workman · 03-18-2012

Quote:

Originally Posted by LGAFF

Boxer Firing order
1,4,7,3,8,5,2,6

LT-5
1,8,4,3,6,5,7,2

Yeah, and then the question of cylinder numbering scheme is to be considered, as it relates to firing order. For example: The firing order of the LSx motors is the same as the modular Ford V8s. But, because the cylinder numbering scheme is different for the two motors, the numerical firing order does not appear to be the same. So, it might be good to know how the cylinders are numbered in order to understand actual firing sequence.

Here's a bit of trivia that might be interesting - wuz to me, at least. In the LS vs. the Ford modular (e.g., current Mustang V8), if you start with the #1 (GM scheme) and follow the firing order and trace the pattern, and do the same starting at the same relative cylinder (Ford's #5 = LSx #1) you'll see the relative firing order is the same, but you wouldn't know that by simply looking at the numerical order.

I have no idea what the numerical scheme differences might be for the boxer, but it might be useful to know to understand the actual firing pattern...I'm just sayin.

p.

LGAFF · 03-18-2012

Yeah, I looked into that....only assumption I could make was that it follow the same firing as the Lotus V8s....I sent notes to Graham Behan, Doug Rippie, and a few others trying to see if these could be a GT-1 set up...all seemed eager to help then never got back to me.....so sending them back...bummed

03-12-2012	#41
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Lotus boxer LT-5 Engine __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

03-12-2012	#42
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Lotus boxer LT-5 Engine I have not viewed these let me know if they are working....vids of the engine __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

03-12-2012	#43
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,827	Re: Lotus boxer LT-5 Engine Looks like both vids work fine, Lee. Thanks for sharing. __________________ 2004 Z06/Z16 LeMans Commemorative Edition 1991 ZR-1 #302 White/Gray (sold) 1991 ZR-1 #1147 Red/Saddle (sold)

03-12-2012	#44
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,710	Re: Lotus boxer LT-5 Engine Nice idea for a mid-engine. Low CG. __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

03-12-2012	#45
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Lotus boxer LT-5 Engine Boxer Firing order 1,4,7,3,8,5,2,6 LT-5 1,8,4,3,6,5,7,2 __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

03-13-2012	#46
USAFPILOT Join Date: Aug 2007 Location: Spring TX Posts: 1,347	Re: Lotus boxer LT-5 Engine In a boxer engine aren't eh cylinder supposed to fire at each other. I always heard that the Ferarri Testarossa Flat 12 was not a true boxer engine, even though all 12 cylinder are horizontally opposed to each other. I think the Subaru motors might be a true boxer design. Either that or whoever told me that was flat wrong and I believed them. __________________ 1994 #293 ZR-1 Stainless Works Long Tube Headers, B&B catback w/ X-Pipe, 18" Shelby Series One Wheels, SLP CAI.

03-13-2012	#47
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Lotus boxer LT-5 Engine Yes that is true a true boxer is different than a 180 degree engine __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

03-18-2012	#48
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Lotus boxer LT-5 Engine Well I think these are going back, the firing order would indicate a true boxed engine.....which means it would fire on the same side in consecutive order....a true flat plane would go L-R-L-R....so no chance these are usable. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

03-18-2012	#50
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Lotus boxer LT-5 Engine Yeah, I looked into that....only assumption I could make was that it follow the same firing as the Lotus V8s....I sent notes to Graham Behan, Doug Rippie, and a few others trying to see if these could be a GT-1 set up...all seemed eager to help then never got back to me.....so sending them back...bummed __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359