[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Yeah Accusump or Moroso, have an inkling pre-oiling the engine, particularly pressurising the lifters, cam and valvetrain on startup will prove worthwhile insurance.

Seems the weakest link in Gen IV at least is the cam/roller torque friction under 1900rpm.

Looking at three litre 35psi remote solenoid wired to ignition, plumbed at the bypass.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Kroozer wrote:

Anonymous wrote:

Original post by VRSenator065 Well I know this is going to be very very controversial, but to me the trouble is the 5L is very old technology. I mean yes I know you can get them to go, but they just are never going to have the reliability or ultimate power output of later engines. Now if you don’t mind I think I might go and put on my asbestos suit while I wait for the flame session to start

Get in the bin!

@pirate wrote of all Holden technology before his… Get in the sea!

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Any Holden that doesn’t have VVT or pump at least 12:1 static should get in the sea.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Stock L77 cam is actually really good, the key is using valve events as per Miller Cycle.

To achieve this you require more scope / flexibility in your valve timing using a cam phaser, like I have.

450rwkw out of a twin turbo 6.0 V8 is a known thing, scaling back your effective volume to a highly efficient 3.0 on AFM and from around 4.0 on highway cruise is also known.

The naturally aspirated version of scaling down effective displacement is called Atkinson Cycle, and is what I’ve done recently with mine using VVT.

With VVT the ECU continuously controls the valve timing, so when appropriate it leaves intake valve closing very late such that it eats into the compression stroke. This creates short compression but normal expansion, huge thermal and energy efficiency per charge.

Obviously when power is required it utilises all eight cylinders, max volume, and uses valve events to spool faster and build boost.

Means you also don’t need two of the biggest turbos, or change cam, pistons, lifters, just add VVT.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

OEM+ look

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Brilliant

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Nah having some brews at the Beach Hotel, Byron Bay and a bit charged to get my car back shortly

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Haha Do I even lift, Bro?

Yeah but nah its a two-tonne rockin’ rep wagon, so ima…

Living easy loving free, season ticket on a one way ride

Askin’ nothing leave me be, takin’ everythin’ in my stride

Tweak my engine, V-V-T

Ain’t nothin’ that I’d rather do…

High compression Party time!

My friends are gonna be there too (woohoo!)

No stop signs / Speed limits

Nobody’s gonna slow me down

Like a wheel, gonna spin it

Nobody’s gonna mess me around

Hey satan, paid ma dues

Drivin’ round with that stocko sound

Hey Coppa, look at me!! I’m on my way to the promised land… Whoo!

Sorry I digress. Mainly race up the shops and back.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

No way officer.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

delcowizzid wrote:

is that hot spots after the cats or camera playing games looks like thats where an h-pipe should be its in the general area that every system ive ever made for v8 has had the h-pipe fitted

No H-pipe, x-pipe! And that’s way down past the tunnel brace at the rear (second harmonic), straight pipe – nothing in between. H-pipe doesn’t split the double pulse for low down torque.

What appears a hot spot is definitely not hot, after 16″ expanding megaphone incorporating cats.  Just fresh install weld marks.

Also the system is tuned for ethanol, 100° cooler EGT.

 

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

For me an exhaust is about the brain, then the ears, the seat of your pants then the heart. Oh, yeah then the missus then the cops.

Thing is nobody gets to see under the car usually:

but I like the fact it represents what I can achieve leveraging my own reason and wit, rather than being suckered by any marketing brand. That freaks some people out, not getting stuff off the shelf, keeping quiet and doing it right yourself.

Follows same job satisfaction of making kick arse wine and not having a brand that’s in the supermarkets

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

VRSenator065 wrote:

pir4te wrote:

Lots of practical knowledge from Vizard and Meaux behind the calcs, made a huge difference to my build

Is that David Vizard of mini tuner fame? If it is that guy really knows his stuff…

Yeah, good stuff really, more than pure theory has written world records, wrote several books and regular editorial contributor to professional magazines.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

vs manta 218 wrote:

Pir4te Iv just had a good read of that and i must say that is the best info iv read or recieved on this site I think Carnt thank you enough

Cheers mate, good to be on a site where new info is appreciated.

<span style=”line-height: 1.5;”>

vs manta 218 wrote:

</span>What is the harmonics down the bottom ??

Harmonic frequency (length) at which the exhaust pulse from your motor develops a resonance, first harmonic is full wavelength. Useful to determine the best place to put devices such as pressure wave termination box, expansion point, muffler or like x-pipe – best place for x-pipe torque is second harmonic, for power up front at the third.

<span style=”line-height: 1.5;”>

vs manta 218 wrote:

</span>I take it the primary harmonics is extractor length 20 inchs But the collector tail pipe? Is that saying my best results would be with a 14 inch exhaust system ??

No you have a choice of four ideal lengths although only two or three are practical when including collector, cats, muffler – 14, 29, 58 and 116″ measured from the end of secondaries at merge (start of collector).

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Hi mate, I use a header design program and the Bat Computer spat this out for you:

Lots of practical knowledge from Vizard and Meaux behind the calcs, made a huge difference to my build 

• This reply was modified 9 years, 6 months ago by  pir4te.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

VRSenator065 wrote:

Thanks guys, just ordered the kit, for my application they recommended an ARP stud kit instead of the bolts too, so though I might as well do the lot. Will take a heap of pics and post up on my build thread when I do it, cheers

What lift is your cam?

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Compilation of a few engineering shots during the rebuild:

 

• This reply was modified 9 years, 7 months ago by  pir4te.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

VRSenator065 wrote:

Seriously 2.3t, fark me….

Yep, stock Sportwagon Tare is 1.89, then double sized AGM battery, and a massive Odyssey all-lead military spec., proper dual battery management gear, spare wheel, 45lt fridge freezer, 12 bottle Vintec, Class 4 tow-bar, decent amp and sub, extra soundproofing… and that’s before two full sized adults, luggage, and… stock and trade: at least half a dozen cartons of booze 

So enhancements to suspension, diff, transmission, brakes and engine are not really about a better 1/4 mile time, more like upgrading a Battlecruiser to tackle the winding road ahead!

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Yeah the last generation Commodore and it’s powertrain (the last of the LS) cops it for being fat, dumb, inefficient and outmoded.

Basically a bogan wagon that’s fair game for the great unwashed, who simply don’t get it.

I am lucky I guess in that I get to travel to interesting regional country locations, hence after evaluating all potential product offerings from far and wide I settled on the SSV Battlecruiser, with a few tweaks here and there.

One of the main selling points was its size, rigidity and safety, which is even better in the Sportwagon, but yeah it’s over 5m long and well over 2.3t gross weight.  Australia is vast, and whilst the urban reality of the article is true for metrosexual latte-sipping hipsters blogging in the fourth estate, my reality is you just don’t see any lightweight small engined cars outback flat out out near the SA / QLD border.

See attached as to why I decided to double-down on a good thing recently and rebuild / maintain this powerhouse of a behemoth versus the downsized disposable option of Euro inspired Asian FWD crossovers.

https://dl.dropboxusercontent.com/u/95340656/iRescue_GM_Holden_24Jul10.pdf

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

Hmm I am not sure about standalone processing power of that unit, is the same processor as used in the original Mac Plus 30-odd years ago, so I think it may need a co-processor to handle flex calcs.

Naturally as-pirated, all-motor.

[pir4teParticipant Mallala640 HP hyper-cruising SS-V Flagonwagon View build HERE Member since: March 2, 2015 Posts: 154]

VRSenator065 wrote:

pir4te wrote:

One fundamental misunderstanding is that for peak performance the ethanol fraction in fuel needs to be as high as possible. In most scenarios 50% ethanol achieves the same result, meaning effective knock-free range is at least 1000km between flex pumps, topping up with (any) petrol near halfway.

Didn’t know that. So this is the sensor I keep hearing about that in some way alters the ECU tune as a response to the actual percentage of Ethanol?

Yeah, what ECU are you running? Strictly speaking it is a belts and braces precautionary measure – you don’t need it at least not when running e38 or e67 with EFILive custom OS. Possible for ECU to calculate ethanol percentage based on O2 reading in any case but dedicated sensor is probably worth the $120 if ECU has the pin free.

Naturally as-pirated, all-motor.

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