secondarries

[Hib Halverson]

Originally Posted by Pete

(snip)
The LT5 was ahead of it's time heck most LS stuff today came from LT5 development.
Pete

Sheesh, Pete.
Where did you get the information that has you making that statement?
Or...maybe it's something in the water where you live?

[Pete]

Originally Posted by Hib Halverson

Sheesh, Pete.
Where did you get the information that has you making that statement?
Or...maybe it's something in the water where you live?

Hib no matter what i say you just disagree.

Here's a couple of things that come to mind.
When was the last time GM build a production aluminum SBC that worked with no issues.

When did a production SBC have a front mount oil pump.
Among other little things.

Yeah i know it's a coincidence.

So go ahead and disagree nothing new.
Pete

[XfireZ51]

The LT5 was responsible for the GM Powertrain guys getting off their asses and developing the LSx series of motors. Minimizing pumping losses due to crankcase pressure was another area where the LT5 provided direction for the LSx. Accessories packaging was another.

[Paul Workman]

Originally Posted by XfireZ51

The LT5 was responsible for the GM Powertrain guys getting off their asses and developing the LSx series of motors. (snip)

That, if I recall, may have been a direct quote from Dave McLellan, said to a group of us standing around BSn at a BG gathering function...

[Blue Flame Restorations]

Pete, you're the credible one here. Anything to the contrary is just "talking to hear their head rattle".

[grahambehan]

At the time of the project ending announcement Roy Midgely made a presentation to the LT5 team at Lotus which included a page and a half of A4 bullet points on the technology transfer from the LT5 programme to what would become the LS engine family, guess I need to dig that out.

Meanwhile, fuel to the secondary debate

[Paul Workman]

Originally Posted by grahambehan

At the time of the project ending announcement Roy Midgely made a presentation to the LT5 team at Lotus which included a page and a half of A4 bullet points on the technology transfer from the LT5 programme to what would become the LS engine family, guess I need to dig that out.

Meanwhile, fuel to the secondary debate

Thanks, Graham! Thanks for the graph (and hope to see the bullet points soon), and most especially, thanks for the LT5!!

P.

[grahambehan]

Originally Posted by Paul Workman

Thanks, Graham! Thanks for the graph (and hope to see the bullet points soon), and most especially, thanks for the LT5!!

P.

No problem Paul, I was just lucky enough to be part of the team, family really, that made the LT5 what it is.

Graham.

[XfireZ51]

Graham,

First of all, welcome! Super to have your one of a kind perspective.
Looking at the curves, was anyone ever able to explain that sag in the torque curve between 4-5Krpm that seems so characteristic of the LT-5.
I know Marc H. can show you graphs of variously modded LT-5 but that sag shows up on each one of them. Just curious.
BTW, how about a thread on the 2nd Gen LT-5 build?

Cheers.

[tf95ZR1]

Originally Posted by grahambehan

Meanwhile, fuel to the secondary debate

OK, I'll be the dope. What are we looking at on these dyno curves?
I see pt open vrs closed and 2 sets of pulls, but..........