What Actually Is 'Unopened'?

20-06-2005, 09:00 PM

We hear so much about 'unopened' cars I thought I'd ask a few questions. Like the most obvious one which is just what unopened actually means.

Like do we accept that replacing major components such as flywheel units (in manual that means the flywheel/clutch and in autos it means converter and flex plate)?

Where does the line sit in relation to the engine? I really think that a general understanding should exist similar to what Group A used to do for example.

XA-Coupe · 20-06-2005, 09:29 PM

The 'unopened' is in regards to the engine only. You can run a highstall, low diff gears and drag suspension and still be unopened. The LS1 guys now include valve springs as unopened .. not sure if I agree with it but that's their call I spose.

Quadcams · 20-06-2005, 09:59 PM

Quote:

Originally Posted by XA Coupe

The 'unopened' is in regards to the engine only. You can run a highstall, low diff gears and drag suspension and still be unopened. The LS1 guys now include valve springs as unopened .. not sure if I agree with it but that's their call I spose.

I agree with you about LS1's valve springs my opinion it's been opened, the motor ain't factory anymore. They classify it as just reliablity mod.

ratter · 20-06-2005, 10:52 PM

so if cams are a weak point in our motors, can we replace them

**Chris** · 20-06-2005, 10:56 PM

just ask the ls1 boys, they will all tell you their motors are unopened, lol

JG3282 · 21-06-2005, 10:39 AM

The way I see it: Any mod that touches oil is classed as "opened"

HEMI POWER · 21-06-2005, 11:12 AM

Quote:

Originally Posted by ONGAS

The way I see it: Any mod that touches oil is classed as "opened"

I see anything from diff gears to clutches as an opened category.The unopened category should be the ability of the tuner to tune a vechile with all mechanical moving bits including driveline the way it left the factory.Only then we would see the basic product and tuners abilities.

Steffo · 21-06-2005, 11:23 AM

Does it really matter if its "opened" or "unopened" ?

HEMI POWER · 21-06-2005, 11:40 AM

Quote:

Originally Posted by Steffo

Does it really matter if its "opened" or "unopened" ?

It does if the average person is after a certain type of bolt on for his or her own vechile.

brenx · 21-06-2005, 12:55 PM

My clevo must be unopened ;)

I tend not to buy into it. There's loads of shifties happening.

smciner1 · 21-06-2005, 07:56 PM

Quote:

Originally Posted by brenx

My clevo must be unopened ;)

I tend not to buy into it. There's loads of shifties happening.

Hahahaha! Try finding an Unopened Clevo (tm) these days.

:evilsasmo

PhantomXR8 · 21-06-2005, 08:27 PM

I'm thinking unopened was a word used when all we had was bolt on stuff like CAI and exhaust ETC. Unopened has to mean not to remove things like rocker covers, head and inlet manifolds. Adding bolt on stuff to the outside of the engine to make engine run at it best in stock form would be closest to the meaning. I suppose that would mean flywheel, pulleys, exhaust & helix.

SpoolMan · 22-06-2005, 04:25 AM

Yep every LS1 is unopened...

DOC · 22-06-2005, 04:42 AM

Would it be a good idea to have a glossary and meanings of all the terms used and added to as it expands ?, ( posted in teck resources ) mainly for new people
( like me )

Stall converter =
Unopened =
CAI =

etc.etc

Walkinshaw · 22-06-2005, 05:26 AM

I think the "can't touch oil" line regarding unopened has been accepted for a while. The LS1 boys changing valve springs for reliablity is really cheeting the unopened terminology. BOSS owners could claim new CobraR internals as a "reliability" item to spin the motors past 6500 on the LS1 philosophy.

SpoolMan · 22-06-2005, 05:45 AM

Quote:

Originally Posted by ONGAS

The way I see it: Any mod that touches oil is classed as "opened"

Hey Ash you still got that Dagger dip stick?
thats touching oil..lol..

**Chris** · 22-06-2005, 08:59 AM

Most of these "Valve spring only" LS1's also have a rocker ratio change, which dramatically changes valvetrain effects, having the effect of a higher lift cam with a faster opening/closing ramp.

I have seen these make up t0 16rwkw on an LS1, and because of power to weight, thats the equivalent of 25rwkw in a Boss. so its good for a couple of tenths........

Casper · 22-06-2005, 11:02 AM

Quote:

Originally Posted by ONGAS

The way I see it: Any mod that touches oil is classed as "opened"

Have to agree with that but ad a bit to it.
"Any ACTIVE part that touches oil and is not a standard part for that car from the factory"

Basically, if the car has got a non standard part that is touching oil and is an active component (this removes the small things like rocker covers, dip sticks and the likes which have minimal impact) then its opened. This has to include different heads, cams, stalls, diffgears etc. Basically, if its not how the car came from the factory and touching oil....its opened.

JG3282 · 22-06-2005, 11:23 AM

Quote:

Originally Posted by XRFPV8

Hey Ash you still got that Dagger dip stick?
thats touching oil..lol..

Didn't you hear the tick tick ticking in my engine last time? Thats cos its got no friggin oil in it. I decided to run it sans oil so that any mod I do is classed as unopened. :party3:

OLS108 · 22-06-2005, 03:41 PM

Quote:

Originally Posted by ONGAS

The way I see it: Any mod that touches oil is classed as "opened"

so u guys dont even change the Oil Filter ?

:

Casper · 22-06-2005, 04:17 PM

Quote:

Originally Posted by OLS108

so u guys dont even change the Oil Filter ?

:

Oil filters are a consumable. It could be argued that changing a head gasket would also be a mod but it is a consumable too. They are not "active" components.

JG3282 · 22-06-2005, 04:24 PM

Quote:

Originally Posted by OLS108

so u guys dont even change the Oil Filter ?

:

you've got one of them have you?

:

Bossxr8 · 22-06-2005, 07:56 PM

What about changing the inlet manifold. I would classify it as a bolt on mod and it doesn't touch oil.

Casper · 22-06-2005, 08:24 PM

Quote:

Originally Posted by Bossxr8

What about changing the inlet manifold. I would classify it as a bolt on mod and it doesn't touch oil.

So would I. Its a bolt on as far as Im concerned. No different to changing the exhaust.

ratter · 22-06-2005, 08:37 PM

Unopened LS1's can change inlet manifolds

Walkinshaw · 23-06-2005, 12:01 AM

Quote:

Originally Posted by ratter

Unopened LS1's can change inlet manifolds

They run a dry valley?? If its a wet vally then a manafold would be opened.

stockstandard · 23-06-2005, 12:22 AM

hmmm

XR8 + blower + NOS + rocket on the roof (mythbusters sytle) = unopened?

29-06-2005, 02:46 PM

I had a great laugh today flicking through an old Street Machine mag. A guy with a 9 second LS1 ute is quoted more orl ess as saying the engine was basically stock. Well, other than the inlet manifold, worked heads, camshaft, etc etc. So really the only thing left that was stock was the crank rods pistons and block.

LOL...

brenx · 29-06-2005, 03:07 PM

Quote:

Originally Posted by Aussie Pete

I had a great laugh today flicking through an old Street Machine mag. A guy with a 9 second LS1 ute is quoted more orl ess as saying the engine was basically stock. Well, other than the inlet manifold, worked heads, camshaft, etc etc. So really the only thing left that was stock was the crank rods pistons and block.

LOL...

LOL. I do that just to people that as silly questions. hahaha. Stock block, crank and rods ;)

au-steve · 30-06-2005, 12:23 AM

Quote:

Originally Posted by XRFPV8

Yep every LS1 is unopened...

LS1's dont need opening thats all.