178 replies to this topic

[ls2lxhatch]

An LS1 with a carburetor is not a street legal option. You are required to meet the pollution control standards of the year of manufacture of the donor vehicle. This means EFI and CAT's.

[lakeside]

An LS1 with a carburetor is not a street legal option. You are required to meet the pollution control standards of the year of manufacture of the donor vehicle. This means EFI and CAT's.

spot on, you can't do it

[LhMusL]

Yeah i did mean it would be straight gas, so you could rego it without cats etc, but whether you can run a ls1 on straight lpg is the question...
I understand were you guys are coming from and agree, was just putting it out there because as the prices of ls1's come down then this may be a better option than some older engines.

2jz of yeah love those!

[LS1LX]

Ok kids, you can run the LS1 on LPG but I think you need to change the intake manifold as its a composite plastic and supposedly it doesnt mix with LPG in the case of a backfire.

By the time you brought a carby manifold/kit and carby it cost the same as running EFI.

$400 for wiring, $200 for an EFI pump and a few hundred for cats.

Theres not much to running EFI, but theres lots of benefits.

[LS1LX]

An LS1 with a carburetor is not a street legal option. You are required to meet the pollution control standards of the year of manufacture of the donor vehicle. This means EFI and CAT's.

Yes it is a street legal option, there is a LS1 powered VN running a carby, it's been in street commodores mag and the owner is on their forum.

So if its in "Street Commodores" does that make it "Street Legal". Big difference between a few photo's in a magazine and what the RTA have to say.

"But officer, you cant defect me, I was in Street Commodores" haha u fella's crack me up.

Also I think you will find that guy was going on about how carbies are way better then injection etc for months because he was running a carby and some pro stocker racer told him so, but its weird how somebody so 1 sided has turned and now runs EFI on that same VN LS1? Bit weird hey?

[LS1LX]

Whats the advantage of swapping the stub axles around?

Do you have a LX RTS set up, or have you used a UC upper arm with your wheel combo?

Can you do a U turn, without rippin yer guards off?

Keithy's UC has almost got me sold on using 16's, so I was very curious with your setup as I want 17's!

And was your plan always just to do the conversion without consulting an engineer and just cuff it on the day?

I always got told that you need to consult an engineer first, as they don't like people rockin up with modifications already done?
I'm not very experienced with this issue, sorry.

Thanks again, great car!

I have a hopper stopper kit on the front so I changed the stub axles from left to right so that the caliper is on the rear side instead of the front, you can't fit it on the front side because the caliper will foul on the tie-rod end. Well you can't get the tie-rod ends on with the caliper at the front.

LX RTS standard control arms, nothing changed, the car is 7/77 factory LX RTS

Yes, can U turn without tyres touching, I have full lock from lock to lock, tyres do not foul anywhere, the actual calipers foul on the crossmember just before you would get 100% lock, you loose around 5 degree of wheel lock with the brake kit due to it fouling. I did NOT have to trim the edge that runs along the firwewall/wheel well etc. I havent even lipped the front guards though I should of.

I am glad I went 17's, I would of been in trouble if I went 15/6, as I run the greasble upper balljoints, with 17's the rim clears over the balljoint so you can have the offset of the rim further in now, eg the rim runs over the balljoint, with a 15 or smaller you cant get the rim over the balljoint so you need to compensate by putting smaller width rims or adding flares and bring the wheels outwards, I prefer inwards and no flares.

You should consult an engineer first, but I found too many negative people telling me I can't do it, it wont work, it wont run, I wont get it registered etc.
The plan was always LS1 from when I got the car back in September 03, we just stuck to the plan and I said I would have it 100% engineered and registered and I followed thru with that. That was the goal and I stuck to it and believe me a SBC would of been a helluva lot easier and cheaper.

Edited by LS1LX, 08 July 2007 - 06:37 PM.

[LS1LX]

LS1LX Posted on Jul 8 2007, 06:06 PM
I am glad I went 17's, I would of been in trouble if I went 15/6, as I run the greasble upper balljoints, with 17's the rim clears over the balljoint so you can have the offset of the rim further in now, eg the rim runs over the balljoint, with a 15 or smaller you cant get the rim over the balljoint so you need to compensate by putting smaller width rims or adding flares and bring the wheels outwards, I prefer inwards and no flares.

One more question, ( i think ) were your custom offsets on both front and rear wheels designed to maintain the standard track width, to keep inline for registration purposes? And do you know how much your allowed to deviate from them? Thanks

The wheels were measured and made to fit the most tyre possible on the rear with even clearance on both sides of the rim. The fronts were measured and made to give full lock without any modifications to firewall or cutting guards etc. If I brought the front rims out any more when turning the wheels inwards they will rip the front lower edge of the guard off (where a front spoiler normally fits)

[LS1LX]

I took the car out to WSID for a private LS1 track drag day.

No prepping just drove out there as I do on the street, removed no weight from the car, street wheels and tyres (40psi in rear).

1st pass 12.3 (Never raced before)
2nd pass 11.9 @ 116mph

Was told to slow down as I don't have an ANDRA licence

So started backing off doing 12's the rest of the day.

Then around 3pm in the heat did another 11.9 @ 117mph and got kicked off the track :(

I should do better times at night and with some slicks

Pretty pleased for a car I just drove there and raced without turning a spanner.
Runs 3.55:1 diff and my 60ft's were 2.0 so theres more in the little stocker hehe.

DAD vs ME, u guessed it the Torana destoryed the old HG every race, sorry ......

Edited by LS1LX, 17 August 2007 - 09:04 PM.

[LS1LX]

Here's an update for anybody remotely interested.

I have updated to a new crate LS2 6.0L 307kw stocker, I am going to have it retuned and "maybe" sell it.

If I come to my senses and don't sell it I am going to get some work done to the engine and aim for low 11's.

Hope you enjoy, just a few pics from yesterday, got a few little things to hook up before its a driver, but it does start and runs smooth

Edited by LS1LX, 20 July 2008 - 10:35 PM.

[MRLXSS]

Yummy!! That motor looks so much tougher! No Coil packs on top of the rocker covers! It looks like a REAL V8 again!!! Bloody awesome!!!!!!

[myss427]

Hey LX-LS1 what brand of extractors are you using, got a mate who's putting in a L98.