[PAUL K]

Originally Posted by PAUL K

D'car has double standards for guys swapping corporate engines into Pontiacs. He loves the guys from Michigan that do it but pretty much everyone else is not allowed to.

Season's greeting to you and your family Troy. Please tell me what part of this post is not accurate?

Originally Posted by Dragncar

You are just mad because you have been trying to copy the guys work for years, and still come up short.
.

Not mad about anything. I really don't bother copying any guys work, haven't been impressed with most the stuff we've seen. We fix a lot of it, but haven't seen much to copy over the years. If I was to copy work, you can be assured it'd be from a guy that was good enough to afford to buy a Pontiac engine.

BTW why don't you tell us how good those Wilcox heads are again, you know the guy you were boasting about for a while that could almost match the CFM numbers we get from Edelbrock heads?

[1funride]

Junk yard LS, cheap turbo, make more power than you will with 10K in a Pontiac motor. I love Pontiac motors and anything other than a Pontiac in a Pontiac is a sin, but I don't think this is a hard one to answer, LS way cheaper to build, heads flow great, rugged blocks.

[krisr]

Originally Posted by 1funride

Junk yard LS, cheap turbo, make more power than you will with 10K in a Pontiac motor. I love Pontiac motors and anything other than a Pontiac in a Pontiac is a sin, but I don't think this is a hard one to answer, LS way cheaper to build, heads flow great, rugged blocks.

This is partially true but also may need some more context, because i've been involved in some of these "cheap" builds that make gobs of power, but only for a limited time.

Nearly every "melted" turbo LS done on the cheap conversion i've seen melts #7 piston - and yes, steam ports left intact. One of the owners I worked with did it 3 times. Zero issues with tune, heaps of fuel and 10* timing. Apparently not an isolated situation and many others report the same issue with stock bottom end motors.

So routinely melting #7, sleeving/machining, time pulling an engine, time refitting an engine, time removing and refitting turbo pipework, routinely buying/dumping fluids from engine, the high power (short lived) LS junk swap deal gets pretty ****.

Above owner that did the cheap turbo 5.3 conversion has since sold that engine/turbo combination because he got sick of it melting all the time and has gone back to a normal 350 SBC that was factory option in his car (Holden).

Do LS's have their place? Absolutely, I love my LS3 in my daily driver. But am I absolutely thrilled that Paul is building me a new engine for my Monaro and it's still a conventional Pontiac deal? Hell yeah! So don't retire just yet mate

[Formulajones]

Originally Posted by krisr

Nearly every "melted" turbo LS done on the cheap conversion i've seen melts #7 piston - and yes, steam ports left intact. One of the owners I worked with did it 3 times. Zero issues with tune, heaps of fuel and 10* timing. Apparently not an isolated situation and many others report the same issue with stock bottom end motors.

That's most likely because of the tune. The LS engine, particularly with the passenger car intakes, have a tendency to run the #7 cylinder lean. When I was tuning them it was pretty common to increase injector pulse width for #7 to richen that cylinder a bit.

Just a little tid bit for those closet LS guys I know are lurking here

[krisr]

Originally Posted by Formulajones

That's most likely because of the tune. The LS engine, particularly with the passenger car intakes, have a tendency to run the #7 cylinder lean. When I was tuning them it was pretty common to increase injector pulse width for #7 to richen that cylinder a bit.

Just a little tid bit for those closet LS guys I know are lurking here

Yeah can't do that on the factory P01/P59 without hacking the binary to get access to injector gain(factor) vs cylinder. Running the factory PCM is the common "cheap" combination we see here - i.e. the pull a junker and run it concept. Some guys get away with flowing injectors and putting the fatter injector on cyl7, but sometimes they all flow near perfect like my Siemens 660's or the 1000's in my LS3.

Aftermarket PCM like a TerminatorX, Megasquirt, Haltech, no problems to trim cyl7 injector higher and trim the other 7 at 100%. But you're also up $1-2.5k just in engine management to do that. Which went against the owners philosophy of that motor which melted #7, 3 times, unfortunately. And others...

[PAUL K]

Originally Posted by Scott Roberts

LSTTFMFER

LMAO!