Restricting boost with no wastegate?

[Guss]

Scott from the garage where i took my car for a wof has decided to fail it because of
A) no cert for after market engine management. - Running link
B) Exhaust must exit rear of vehicle - Side exhaust
C) "Porting from turbo" - external wastegate venting to atmo.

Now most of this is B""lsh!t, the LVV guy i rang up even had a chuckle suggested it take it elsewhere.
I'm stubborn so i'm not going elsewhere.

I've convinced him the side exhaust is o.k as it exits behind passenger compartment.
Still waiting decision on the link, as the cert plate notes i have a modified engine this is fully legal.

I've removed my wastegate and replaced with blanking plate, how can i limit boost ? I can drive sensibly and not get boost but i'm worried the inspector may decide to drive it.

[Si]

Set your link to have a crazy low rev limit, and then give him the car...

[deaf_rattle]

i reckon you should plumb your wastegate into your exhaust anyway. Im glad he failed you on it.

As for the ecu, you might need need to talk to the cert guy and have it mentioned on your cert plate.

Sounds like the wof guy was just doin his job.

I thought side pipe was alright as long as it was behind the last door (maybe 20cms past door?) but yeah might pay to check the lvv website out.

[Guss]

The way the wastegate is setup i can not plumb it back to exhaust unless i cut panels.

Do you also think i should have every engine component listed on the plate?

Its a non oem engine so i don't see why it needs cert for ecu.

[deaf_rattle]

take your ecu out then, obviously you dont need it.

if i run a link in my standard car id still need a cert for it.
i believe chips require cert too.

I am interested though, how does the wof guy know?

[Al]

I've convinced him the side exhaust is o.k as it exits behind passenger compartment.

It has to exit on the right. If it exits on the left he can fail it.

[Guss]

AI, have another look at the VIRM, not exiting on left only applies to heavy vehicles.

ECU was mounted in clear sight it is now 'gone' well not visible.

according tohttp://www.landtransport.govt.nz/certifiers/virm-in-service/general-13-v3.pdf
VIRM 13-1-1 i can modify the fuel injection and ignition systems and not require cert however "Note 2" LVV certification is always required ..... ... or the re-chipping of electronic engine control units on
turbo cars

[deaf_rattle]

according tohttp://www.landtransport.govt.nz/certifiers/virm-in-service/general-13-v3.pdf
VIRM 13-1-1 i can modify the fuel injection and ignition systems and not require cert however "Note 2" LVV certification is always required ..... ... or the re-chipping of electronic engine control units on
turbo cars

Im sorry, I mustve misread this part…

Scott from the garage where i took my car for a wof has decided to fail it because of
A) no cert for after market engine management. - Running link
B) Exhaust must exit rear of vehicle - Side exhaust
C) "Porting from turbo" - external wastegate venting to atmo.

Now most of this is B""lsh!t, the LVV guy i rang up even had a chuckle suggested it take it elsewhere.
I'm stubborn so i'm not going elsewhere.

I've convinced him the side exhaust is o.k as it exits behind passenger compartment.
Still waiting decision on the link, as the cert plate notes i have a modified engine this is fully legal.

I've removed my wastegate and replaced with blanking plate, how can i limit boost ? I can drive sensibly and not get boost but i'm worried the inspector may decide to drive it.

[Al]

My bad, should read closer

[Guss]

Point is it does have a cert the guy just cant read it properly.
Nor does he understand the rules fully, those prior points only apply to oem installations and since this is not the oe engine it does not apply.

what i was trying to point out was that on non-turbo cars chipping changing ecu does not specifically require cert, unless power gains over %20.

[QikStarlie]

take the w/g off. and set the rev limiter low like someone else said. set it just as its coming on boost. and say you have an igniton problem, if he picks up on it

[Bling]

sounds like another useless WOF inspector

sisters car got failed because the full beam lights could not be turned to stay on...... the inspector didn't know / take the time to pull the fricken headlight stick to operate the full beams

[mjrstar]

you could put a REALLY weak spring in your bov this would cause a boost leak that would limit boost pressure. sure it's rangi but it should prevent overboosting....

[IH8TEC]

that seems bloody weird abotu needing a cert for the computer, first i've EVER heard about that. sounds like a cock

[Lloyd]

AI, have another look at the VIRM, not exiting on left only applies to heavy vehicles.

Rubbish, read the VIRM again yourself.

And fair enough about the wastegate, those both an exhaust leak (unless you're venting it behind passenger compartment) and significantly louder than standard unless you have a muffler in the wastegate exhaust.

Bit overkill on being failed for a Link.

[Crucible]

Bit overkill on being failed for a Link.

yep I agree, thats just rediculous, some inspectors are just power trippers.

[Guss]

HRT, ah i did and your right it also applies to light psv's (passenger service vehicles) http://www.landtransport.govt.nz/factsheets/15.html but not to personal motor vehicles

no exhaust leak because its behind passenger compartment (MR2), yes it's significantly louder than a 747 when open
yes it would pass the noise emission test,however I'm thinking about a silencer for it just where is difficult as it comes out the engine cover.

[Lloyd]

It will not pass the noise test (as it gets loud when wastegate opens so will fail as being louder than factory) and will also fail as an exhaust leak if you read the definition of an exhaust system on the first page of the VIRM in the exhaust section

[Guss]

as the test is under no engine load the wastegate will not open so noise levels will be within limits.

Whats the difference between a dual exhaust system and what i have?

also seems i was looking at an old copy of the virm latest version (jul 07)

The term significantly (which is used in the virm in reference to the noise level) is imo bit subjective, however my exhaust will be within the 97dB allowed under no load @ 4500?rpm.

[Lloyd]

The noise test you are talking of with dB limits has nothing to do with a warrant inspection. The VIRM doesn't take anything into account about what rpm you are doing. it will be significantly louder. You know this and the person checking your car will know this so it should fail on it.

If you are running a screamer pipe then it has no form of quietening the exhaust note on the pipe which means its not an exhaust system (read the definition) and is therefore an exhaust leak.

Not us you have to convince anyway.