Commodore Valuables

[Dr Goggles]

The Colonel (grumm441) has done the heads over , reseated the valves done the seals and given it a porting job, but we hadn't upped the springs . Have you seen the inlet plenum on an Alloytec? , they're a little better .I figured I was going to make another version that'd take two throttle bodies , I guess we'd have to stagger the opening , maybe not Another mad idea involves flanges , and um a few more smaller TB's , and um some stack sort of things ......

[blownvn]

The Colonel (grumm441) has done the heads over , reseated the valves done the seals and given it a porting job, but we hadn't upped the springs . Have you seen the inlet plenum on an Alloytec? , they're a little better .I figured I was going to make another version that'd take two throttle bodies , I guess we'd have to stagger the opening , maybe not Another mad idea involves flanges , and um a few more smaller TB's , and um some stack sort of things ......

If you guys are going alloytec then I'd suggest ditching the whole plenum and making up a flat plate for six individual throttle bodies with trumpets. When you undo the six or eight bolts that hold the plenum down and lift it away you'll see exactly what I mean. That way you can also ditch the drive by wire bullshit.

Do the valve springs on the series-1 engine you wont regret it. My engine has stock valves but aftermarket spring and retainers and i used to spin it to 7000rpm before the turbo.

[Dr Goggles]

[quote="blownvn]
Do the valve springs on the series-1 engine you wont regret it. My engine has stock valves but aftermarket spring and retainers and i used to spin it to 7000rpm before the turbo.[/quote]

7000rpm is big numbers for our car.......like 200mph The Alloytec does 190kw@6500 which with a little encouragement might do the same ,our intention was to run it box-stock ( when has that ever happened? )but before that we have to get our hands on few other bits and bobs , um , like a bellhousing .After the "development process" with the series ones and before that the Buick I am almost at the point where I'll just fab' the bellhousing because it means I won't need a scattershield.....why??? ...well just above the scattershield is the water-tank and there ain't much room tween the three . I'd have to be a DC to pay for a new bellhousing only to butcher it so I can bolt up the M20 and then have to build another scattershield AND modify the water-tank........................

It's kind of like a wedding that got cancelled at the last minute , and believe me right now is a little early to be chopping up , or changing or ditching stuff that hasn't ever left the shed ....heartbreaking

[Dr Goggles]

Well we've um, made a start , sort of .I got on the 'bike and went over to the posh side of town and sat down around the new motor with the Rev' and the Colonel and had a bit of a chat.

We are ,as mentioned in the last post , about to chop up a car that is ready to go , but hasn't. I'll really let you know something .........hasn't run.There were just a couple of things left to do as we were packing up to go , the major things were to install the brake pedal and , um , get it to run .On the Friday night I bought a new fuel pump , there must be a God because if there wasn't and we'd gone to the meet there'd be a dead bloke at Autobarn 'round the corner from my house , lets just say the fuel pump wasn't going to do the job .To their credit they took it back with no paperwork or box and we now have an adequate one.

Ideally we could chuck the new Alloytec in "as is" and the sums say we're looking at something like 200 when we're on song . No can do .The exhausts are too wide and the inlet protudes too far forward , they're gone . Word is we may be able to use Rodeo stuff in the driveline( anyone??) but as it is we need a flywheel ( the temptation is to get one machined ), starter , alt , we can adapt our clutch and we need the smarts to deal with the stepper throttle. Easy!!!! . L.F.I.I!!! building the bellhousing will be the start , essentially we'll just hoist the motor in and see what we need to chop and what we need to add in order to get it in .The deck height and crank to sump floor dimensions are very similar but the difference in head size is a worry .We may have to cast the cowl of the tank in 'glass so we can stick some teardrops (.....".on the dance floor , remind me baby of you" , Womack and Womack : 1987)in it to fit 'em in.We , will , be there next year.

In the mean time I've knocked up a pretty nice flat black HR ute .2roo.

[DON NOBLE]

When you have finished all that , just rip it out and start again , ( seems you like doin that ) , and fit up a Nissan 350Z V6 , YUM .

[Lynchy]

Or come up with a heap of folding stuff for one of those Hayabusa V8's from England - it would fit and room left over.

[Dr Goggles]

Bastards

[blownvn]

Why not just stick with the V6 you've got? they're good donks.

Get it running first make sure it's going to do the job and during the year as money becomes available do little bits here and there (heads, cam, throttle body, tune, etc)

That way you've got a car that ready to go for next year and not dicking around rebuilding stuff for a new motor.

[Reverend Hedgash]

Blownfly that is a very good point, and it certainly makes a lot of sense financially.

But if you had two powerplants sitting in your garage and one had higher power at a higher rpm which would you choose to make a LSR vehicle?

In a sport where you need every edge you can take to get a record it would seem odd to go the slower path to save on complexity, when we will have to tackle that complexity at some stage anyway.

I guess we are just speed greedy...

It is a hard decision, and one not taken lightly.

Thanks for the question though.

Reverend H+

[blownvn]

Sound like a lot of stuffing around though. The beauty of the old V6 is that they are a fairly simple thing to work on, the new alloytec is alot more complicated.

Sell the alloytec and use the dollars to extract more power from the VN motor.

[Reverend Hedgash]

You could well be right.

The Doctor myself and the Colonel had our first team meeting last weekend for the Speedweek 2008 campaign and went through what we had to do to get this engine sorted reasonably for next year.

Although it wasn't too significant as we'll be running pretty it pretty stock, it sits astride the list of thirty things we have to do on the car anyway, on the truck and the trailer...

(The major element is getting a computer sorted... we were on the megasquirt path but this thing, as you say, is way more complicated...)

We did decide however to keep the engine and drivetrain as a parallel development for us to play with on the side so if it all turns into a dribbling mess then we have a backup.

We will not sell the engine as it was gifted to us for the purpose of racing it in the car, and we wish to do the best for that benefactor.

Reverend H+

[blownvn]

We will not sell the engine as it was gifted to us for the purpose of racing it in the car, and we wish to do the best for that benefactor.

Reverend H+

That's fair enough then.

[Dr Goggles]

............the 08 campaign has begun.I've had a wake-up call regarding my health and some of my favoured pursuits , lets just say I can't pursue them anymore without reducing the amount of time I have to get the things I want to do done in the available time I have.......it's smoke or live , right now I'm gonna choose life.

So.

Last night I got started , the wheels are off and the tail pipe ( so I can walk around the bloody thing) and I'm getting ready to hoist in the alloytec and see whether I can build a set-up that will accomodate both motors( the early 90 degree V6 and the A'tec 60 degree job) w/o too much shenanigans .Also on the horizon is the possibility of trying out two triple set throttle bodies from a Triumph Rocket for the Alloytec ........designed for a 2.3 litre motor I'm thinking they'd be right on the money for 3.6L at WOT.............crashing another brand new bike at work hasn't helped my access to these sort of bits from the powers that be but they'll come around........well, one can only hope.....................

Braaaarp!!!!!!

[Dr Goggles]

...It's been a bit embarrassing and we might sound like half-wits but up until now the motor in the tank has had a mystery gremlin that has stopped it running properly , we knew it was a fuel problem , at first we thought it was pressure ...then we had N.F.I......last week the Reverend noted that the injectors weren't pulsing correctly but without our trusty engine whiz Col. Grumm on hand the two of us might as well be using a ouija board as an engine diagnostic tool . I mean , I can fix stuff , work stuff out but fuel injection and computers in a custom set-up are stretching the limits a little. Last night the Colonel traced it to a fusible link buried somewhere in the loom that was fried....I wasn't there , I was playing music on the other side of town while those two drank what booze was left lying around my house........I got home to find a note...." put fuel in it , it should run"......I went down to the servo this morning , filled up a jerry can , tipped it into the tank , hooked up the battery flicked the switches......and it ran

All praise the Gods of Speed!

[PJQ2]

Congrats on the milestone, gotta get round there and check out progress.
Mighty fine sounds of Sunraysia on the wireless yesterday (must have been the velvet suit).