Finally took the plunge - New 427SC kit on order!

[Tenrocca]

I passed IM240 without an "emissions special" or even stock tune, basic undercar exhaust with stock commodore cats.

[Paintwerks]

Originally Posted by Tenrocca

I passed IM240 without an "emissions special" or even stock tune, basic undercar exhaust with stock commodore cats.

Excellent news then. Perhaps it won't be an issue to use the pre-loaded tune in the GMPP supplied ECU?

[sambo]

Originally Posted by Tenrocca

I passed IM240 without an "emissions special" or even stock tune, basic undercar exhaust with stock commodore cats.

There's a rumour that here in Vic the test will be returning to 50% for a pass (ie, twice as tough), which is half the allowed level of pollutants we're currently enjoying and have been the past few years.

With my L98 which passed with stock MAF, VZ cats and factory tune, I can't remember which of the 3 gas readings but one of them was nearly over the limit and that was with the relaxed (100%) test. Fully warmed up in the car park and they gave it a second run back to back to make sure it wasn't a false reading.

Do they run four O2 sensors in the VF GTS?

[Tenrocca]

Originally Posted by sambo

Do they run four O2 sensors in the VF GTS?

It would but dont think it would make any difference to the IM 240 as downstream cats are only there to monitor if the cats have gone bad.

[400TT]

Looks like the Gen F GTS LSA Engine will be popular due to their low price. GTS is fitted with the Camaro ZL1 version of the LSA, not the Cadillac CTS-V version.

We have them on order already from our engine supplier for other customers. Manual versions with twin plate clutch and mated to the slick Tremec 6060 MG9 gearbox. That gearbox has some very sweet road/race ratios and oil cooler support.

We will do some test fitting as soon as our first unit arrives.

Simon, if you can wait, we will be supplying a full fitment kit. Engine and gearbox mounts. Full coolant system with heat exchanger, reservoir, pump and all fittings and hoses. Plus cold air intake system.

We can exchange your existing engine/gearbox mounts if they are not suitable.

Looks to be an excellent fit for a PACE 427 especially with that low slung throttle body at the front.

Also looks to be easy to get running with available electronics controller kits.

It is a tall engine though, so if anyone else is considering fitting it to another kit check the dimensions.

Harrop get 530KW & 1000Nm with their Stage 2 kit for the GTS LSA. Harrop just uses simple bolt-on changes and a tune. Lots of potential, that's if you are crazy enough to think you need even more power than what it provides stock.

[Tenrocca]

Only difference is in NSW its free - so I was able to take a shot with what I had knowing it would cost me nothing (and it passed).

[T.L.]

paintwerks, shouldn't be a problem to show you the car with its setup. I do have some photo's in the photo thingy I think. (I havent looked in a while and I dont come on here that frequently) my rear springs are too light so it's laid up a bit until I can get it somewhere to change them fronts are done but they are too high now but at least they are a better weight in spring.

I only rev to 5500 as we couldn't get any more fuel to the thing apparently. Already running 60 pound injectors? and it starts to lean out above that, thats what Errol at efi dynamics said anyway!!. Running bosh 044 pump etc... so that shouldn't be a problem there, but as it happens 5500 is more than enough revs as you start to pack a new pair of underpants after 4000 or want to 'rotate' after you have gone through V1.

Here's my engine bay, nothing too shiney.

[d488y2]

Here's a link to Approved Vehicle testers in Vic for emissions and noise
Approved vehicle testers

[T.L.]

i had 4 goes at it, was soo close on all of them, was a bit of overfueling on over run. Took supercharger off and put OE cats on and it still failed with OE fuel pump etc..... The test is a joke in itself as a new car will fail it and thats what the testers said!!!.

In the end they moved the rule to 100% same as the other states so I didn't have to retest and the best test was the first one with the supercharger on etc.....

[kyleb]

Paintwerks
That thing will be a beast.
I have an LS1 in my cobra with magnussun supercharger. It made around 355kw at the wheels. It drives fantastic, very user friendly. These things produce bags of torque almost from idle therefore you can light the tyres whenever you like and you don't need to run it up on the limiter to do it.
I'm only running 4lbs of boost so it has a lot more if I want, but at this point it is very reliable, not stressed and makes me grin like an idiot every time I drive it.
I am running a Lunati blower cam which was made for supercharger/hotrod applications therfore has quite a lope so it sounds like a cobra should, (ANGRY).
With regards to the IM240, I managed to pass first time with no blower and a stock tune.
There is some major points to note.
Use quality cats. I used cats from an XF falcon ( yes you read it right) those old cats were quality.
A lot depends on who is doing the drive cycle on the dyno because anything they do can have major effects on the outcome.
A lot of these cars fail on the deceleration not acceleration.
The Maf needs to be placed ideally 400mm or so from the TB so the computer has time to make adjustments.
Try to get the distance of the O2 sensor and cats close to where they are on the OE installation.
Get a new carbon canister and DON'T hook it up until test day cos it will feed fuel vapor into the engine from soak possibly increasing emissions.
I used a painless wiring loom for mine which included drive by wire and it was a breeze.
Only thing I had to do was reverse the pedal due to being L/H drive pedal.
Use the parts they tell you to and you will find it quite easy.
Can't wait to see it on the road !!

[400TT]

Originally Posted by kyleb

Use quality cats. I used cats from an XF falcon ( yes you read it right) those old cats were quality.

Yes, quality OEM cats are highly recommended.

Due to our unique exhaust routing we can run the largest/bulkiest of oem cats very, very close to the exhaust headers without sacrificing ground clearance or creating heat issues. VE V8 Commodore cats are physically one of the largest around.

[Paintwerks]

Originally Posted by 400TT

Yes, quality OEM cats are highly recommended.

Due to our unique exhaust routing we can run the largest/bulkiest of oem cats very, very close to the exhaust headers without sacrificing ground clearance or creating heat issues. VE V8 Commodore cats are physically one of the largest around.

I'm still undecided if I'm going for full reg or club reg, so I may not even need to worry about cats.

But if I go full reg, depends on what the engineer says but I'll more than likely have to run an undercar system. It just so happens that I kept the 1200km old OEM cats off my E3 HSV when I put the 3" Walkinshaw system on. I also have a pair of brand new Outlaw 200cpi Euro III cats too that fit the Walkinshaw system. Which cats should I use?

Re the LSA fitment kit, yes, I'd be interested in that. I was sussing out the heat exchanger, reservoir and pump anyways but if you have a system worked out for the Pace 427 then I can definitely wait.

I'll be getting the engine controller kit from the states as my friend is coming in from St. Louis in March and will bring it with him.

[sambo]

Originally Posted by Paintwerks

I kept the 1200km old OEM cats off my E3 HSV when I put the 3" Walkinshaw system on. I also have a pair of brand new Outlaw 200cpi Euro III cats too that fit the Walkinshaw system. Which cats should I use?

I'd say the HSV cats have a better chance of passing the IM240 than a set of aftermarket "Euro III" cats.

According to the following info, Euro 4 came into effect for new passenger vehicles in 2008. There are special rules for ICVs but with Euro 5 and 6 being phased in, I wouldn't count on Euro 3 being acceptable for too much longer. Perhaps an engineer can chime in here?

Emission Standards: Australia: On-Road Vehicles and Engines

[400TT]

Originally Posted by sambo

I'd say the HSV cats have a better chance of passing the IM240 than a set of aftermarket "Euro III" cats.

Sambo, yes I am of the same belief, you can bank on the performance of OEM cats. Just keep in mind that not all OEM cats perform the same, it all depends on how "dirty" the original engine is compared to the emissions level they are trying to meet. kyleb mentioned he used XF Falcon cats for that reason.

[Zedn]

EPA don't care what sort of rego you have when you are polluting. Besides no cats smells very bad.

Originally Posted by Paintwerks

I'm still undecided if I'm going for full reg or club reg, so I may not even need to worry about cats.

But if I go full reg, depends on what the engineer says but I'll more than likely have to run an undercar system. It just so happens that I kept the 1200km old OEM cats off my E3 HSV when I put the 3" Walkinshaw system on. I also have a pair of brand new Outlaw 200cpi Euro III cats too that fit the Walkinshaw system. Which cats should I use?

Re the LSA fitment kit, yes, I'd be interested in that. I was sussing out the heat exchanger, reservoir and pump anyways but if you have a system worked out for the Pace 427 then I can definitely wait.

I'll be getting the engine controller kit from the states as my friend is coming in from St. Louis in March and will bring it with him.

[d488y2]

Brad's exhaust will be finished soon, maybe he will post some pics?

[Tonus72]

What sort of exhaust are you going with Brad? Undercar with cats?

Cheers

Tony

[Cobra01]

Originally Posted by Tonus72

What sort of exhaust are you going with Brad? Undercar with cats?

Cheers

Tony

Hi Tony

Yes i am going with under car with cats

I think the less attention from Mr. Plod the better it will be for all.

Cheers

Brad

[Tonus72]

I look forward to seeing some pics and hearing how you go Brad.

Thanks

Ps - you always have to bear Mr Plod in mind!

Originally Posted by Cobra01

Hi Tony

Yes i am going with under car with cats

I think the less attention from Mr. Plod the better it will be for all.

Cheers

Brad

[muzzza]

Simon, Have you sourced a gearbox for that LSA engine yet ? Muzzza