LVVTA

[sultan]

that document was useful. i was trying to decide whether or not it would make a difference certing my car for adjustables before or after doing the external fuel system, and after reading that doc, it sounds like it doesn't make a difference. excellent.

[SUBRMN]

hi there mate just got mine certed in whangarei on wednesday at the testing station he just checkd all my mods and was happy all he wanted was to see a warrant check sheet list and failed on a few things for the warrant test but he still got my plate cause it was all fixable like tyres window washers know spare etc if you go for a vtnz test first then show the cert person hel only do the modification checks im so happy mine been of the road for two years

[cods4]

You probably know this already but you need to have drive shaft hoops installed if you have increased power by more than 20%. I'm getting mine certed in Christchurch and I have had a quote for $150 and one for $300 to get them custom made and installed (bear in mind that is with the carpet and seats removed already).

[Slidesector]

 mangere said:

You probably know this already but you need to have drive shaft hoops installed if you have increased power by more than 20%. I'm getting mine certed in Christchurch and I have had a quote for $150 and one for $300 to get them custom made and installed (bear in mind that is with the carpet and seats removed already).

I increaded power by 50% and didnt need cert or anything to state it was single turbo...

[pl0x]

 Slidesector']

[quote name='mangere said:

You probably know this already but you need to have drive shaft hoops installed if you have increased power by more than 20%. I'm getting mine certed in Christchurch and I have had a quote for $150 and one for $300 to get them custom made and installed (bear in mind that is with the carpet and seats removed already).

/quote]

I increaded power by 50% and didnt need cert or anything to state it was single turbo...

yes you did... just didn't get pulled up for it, yet (and most likely wont)

[Slidesector]

 pl0x']

[quote name='mangere said:

You probably know this already but you need to have drive shaft hoops installed if you have increased power by more than 20%. I'm getting mine certed in Christchurch and I have had a quote for $150 and one for $300 to get them custom made and installed (bear in mind that is with the carpet and seats removed already).

/quote]

I increaded power by 50% and didnt need cert or anything to state it was single turbo...

yes you did... just didn't get pulled up for it, yet (and most likely wont)

So the certifier's issue?? why doesnt VTNZ pull me up on it? Or is it becasue its certified that VTNZ doesnt care?

[pl0x]

debatable, but since it's cert'd i doubt you would have any issues

[Joker]

so its 300kw now?

[Slidesector]

 JoKer said:

so its 300kw now?

105KW atw on the dyno Twin Turbo.

Soon will be though

[Joker]

lol k

there is still debate on wether single turb actually need cert as it is OEM gear AND equal/same hp as TT

[boon]

 JoKer said:

lol k

there is still debate on wether single turb actually need cert as it is OEM gear AND equal/same hp as TT

If you change the ECU to a single turb one, you need a cert. Pretty sure at least. (Technically)

[boon]

 mangere said:

You probably know this already but you need to have drive shaft hoops installed if you have increased power by more than 20%. I'm getting mine certed in Christchurch and I have had a quote for $150 and one for $300 to get them custom made and installed (bear in mind that is with the carpet and seats removed already).

Wtf, did you swap the motor or something? That's never come up when I've been talking to my cert guys.

[cods4]

Yeh, we changed to motor to an EJ20K which is more than a 20% increase in power so need to install hoops. I assumed you also needed to install them if your engine mods gave it more than a 20% increase but I could be mistaken.

[boon]

 mangere said:

Yeh, we changed to motor to an EJ20K which is more than a 20% increase in power so need to install hoops. I assumed you also needed to install them if your engine mods gave it more than a 20% increase but I could be mistaken.

It's only if you do an engine conversion. But if the engine conversion is the same size, configuration and family as the original you still shouldn't need hoops, as far as I understand it.

[funkytown]

??? no mention of ever requiring hoops here.. and im all but 300kw...

Gregs v7 has a 2.5 shortie in it and 300kw and no loops required...

So i dont agree Mangere... Boons logic should apply.

[Slidesector]

I've never heard of hoops being needed and changed whole engine/drivetrain/ecu. increased power greatly, and cert guy knew all of that.

the only issue was the external.

[cods4]

Copied from the Engine and Drive Train Standard sheet on the LVVTA website.

Drive-shaft safety loops

2.5(8) A front-engine, rear-wheel drive low volume vehicle that has undergone

an engine conversion, or has had its factory-fitted engine significantly

modified, such that a significant increase in power or torque has resulted,

must be fitted with an effective 360-degree front drive-shaft loop,

mounted within 150 mm rearward of each front drive-shaft universal.

[Joker]

so only RWD then.... (reading the limited info on this page

[cods4]

Well I know I have to fit them because ive done an engine conversion. Maybe you guys just got lucky.

[DRFVDR]

 JoKer said:

so only RWD then.... (reading the limited info on this page

yeah I think the RWD is the operative words here

Mangere I think you may need to a/try a different certifier or ask yours to double check his facts

[boon]

I think it may well just be RWD only... due to the tendency for the car to instantly flip over if the driveshaft snaps and hits the ground at speed.

[Joker]

myth busted but yea is the general gist of it i figure too, and 4wd can drive under its own power for a bit usually too if a rear prop shaft breaks

[Slidesector]

I didn't need to get any in the S14 eaither.. and doubbled that power.. i would check if the cert guy knows what hes on about

[cods4]

 boon said:

I think it may well just be RWD only... due to the tendency for the car to instantly flip over if the driveshaft snaps and hits the ground at speed.

Subarus would do the same thing if the prop shaft broke wouldn't they. That's why it makes sense to me that this rule would apply to awds too.

I will talk to my inspector to make sure though.

[DRFVDR]

 cods4']

[quote name='boon said:

I think it may well just be RWD only... due to the tendency for the car to instantly flip over if the driveshaft snaps and hits the ground at speed.

/quote]

Subarus would do the same thing if the prop shaft broke wouldn't they. That's why it makes sense to me that this rule would apply to awds too.

I will talk to my inspector to make sure though.

The chances of snapping a drive shaft in an AWD is slim as you have twice as many diffs and wheels driving, snapping axles though is quite common