Hq ls1

[Ke26 Wagon]

Have been thinking of putting this on the gas. I have very limited knowledge on gas but I have been looking and a kit will cost around the $700 mark.

Do I need to run another fuel pump? (already have a carter black for lift and 044 for the high pressure)
And with the ecu do I have to have 2 seperate tunes? and is it possible to switch between the 2

[BOOTHY]

With the false floor would it affect the pumps performance being enclosed with no airflow for heat dispersment? I'd be keen to do same to hide my magnaflow prostar 500 pump to reduce noise but was worried the pump might over heat?

[blownhemi]

Have been thinking of putting this on the gas. I have very limited knowledge on gas but I have been looking and a kit will cost around the $700 mark.

Do I need to run another fuel pump? (already have a carter black for lift and 044 for the high pressure)
And with the ecu do I have to have 2 seperate tunes? and is it possible to switch between the 2

Are we talking LP Gas or Nitrous?

[dogsballs]

ha. i was thinking lpg as well and was about to bag the shit out of you.

[Mr Jones]

How much gas? You basically need to think in terms of total horsepower of the engine + gas versus what the pump will supply. Cant see why it woukd need another tune on the computer but you would probably want to tune the nitrous on a dyno to be safe

[blownhemi]

Using a wet nitrous fogger kit won't require a new tune, in fact it'll be totally fine if you stay with the manufacturers recommended jetting. I think EMA has NOS Sniper wet fogger kits (75-125hp) on ebay for $435+post. Many LOL's to be had.

As for pumps. If this is a stockish LS1 and you running a Bosch 044 you won't need a new/another pump unless you want to give it a 300hp shot.

[Ke26 Wagon]

hahha LPG fuck no!!! Nitrous is wanted. Figuring with a stock motor about 100hp shot will be enough.

Does anybody recommend and articles to read about NOS

I have been reading about wet systems but I must be a tard, cause I am not getting it. How does the wet system work?? and No tune needed, how does that work? Sorry I am still used to a bucket with hole system (carby).

The pumps have to be enclosed for the engineering. To be honest I havent had the falso floor in for ages cause it got drenched in gearbox fluid. Although on hot days out in the sun I havent noticed a difference at all.

Thanks for all the replies

[Ke26 Wagon]

Double post

[blownhemi]

hahha LPG fuck no!!! Nitrous is wanted. Figuring with a stock motor about 100hp shot will be enough.

Does anybody recommend and articles to read about NOS

I have been reading about wet systems but I must be a tard, cause I am not getting it. How does the wet system work?? and No tune needed, how does that work? Sorry I am still used to a bucket with hole system (carby).

The pumps have to be enclosed for the engineering. To be honest I havent had the falso floor in for ages cause it got drenched in gearbox fluid. Although on hot days out in the sun I havent noticed a difference at all.

Thanks for all the replies

Maybe this video will help. this is me installing a wet kit on my EL Falcon.




Basically a wet kit takes nitrous from the bottle you install up the back and combines it with fuel taken from your exist fuel feed line (using a T-piece). Jets are placed in the back of the fogger nozzle to determine the size of the shot and the fogger nozzle is drilled & taped into the intake somewhere in front of the throttle body (6in or so). A microswitch is fitted to the throttle body so that it activates when the engine goes full throttle and you have a switch in the cab that arms the system. System unarmed and wide open throttle does nothing, system armed and wide open throttle will fry the tyres and have your inner monologue going, "fuck me!"

A dry system takes nitrous from the bottle and feeds it through the fogger nozzle, but the extra fuel is supplied through the engines existing fuel injectors and this will require expert tuning.

For a 100hp shot wet system is the way to go.

[ott308]

Ideally with a 100 shot I would like to take 3-4 degrees of timing out. Also run some non projected plugs and a heat range colder

[blownhemi]

Ideally with a 100 shot I would like to take 3-4 degrees of timing out. Also run some non projected plugs and a heat range colder

Yep, used the plugs on my EL but it actually didn't like much timing taken out.

[Mr Jones]

The thing to get your head around is that a wet system is supplying the extra fuel to go with the extra air(nitrous) so if the mixture is still correct then as far as the computer is concerned everything is fine because it doesn't have to compensate for anything. It's not like you're jamming gas in there and asking the computer to supply the fuel like a turbo or supercharger system. It's basically two systems feeding the one engine.

I think if you keep it safe at 100 you will be ok with timing as long as the tune that's been put in it isn't really aggressive. You could probably run standard plugs and be fine but a better plug is cheap insurance.

I think the big thing is a good activation setup. Like Scott said use a throttle switch as well as an arming switch. An rpm window switch and low fuel pressure switch would also be a good safety items

[blownhemi]

A mate of mine actually used to use extra hot plugs with his nitrous (not my recommendation). His reasoning was that if anything went wrong it was cheaper to burn out the plug than a piston. In his defence he did make a shitload of passes with gas, but personally I like the colder plugs.

Low pressure hobbs switch is a good idea, it's good cheap insurance. Dunno about the RPM window thing, never used one, don't know anyone that uses them. The EL Falcon certainly doesn't seem to have an issue when it hits the rev limiter or speed limiter in regards to nitrous.

For consistency and if you want the best out of your system, also get a purge system, a nitrous pressure gauge for inside the car (electronic sensor and wires, not nitrous line in the car) and an adjustable bottle heater. It adds to the overall cost of the kit but you get your best performance at around 900-950psi and most of the time a full unheated bottle will only deliver 750psi.

[ott308]

Read as much as you can on NOS!! Start conservative and then start leaning on it a little at a time. Nitrous is awesome fun, but it can be easy to get carried away. It may be ok with std plugs and the current timing at 100hp, but in my experience i doubt it will do it for long? And i definately wouldn't start there. Unless you have the HPtuner to adjust timing yourself? Start with a 50 shot and some cheap non projected plugs(B6EFS or BR6EF), then start increasing fuel and nos jet sizing a little at a time.

[Ke26 Wagon]

Thanks for the reply guys, as suggested I have been doing some more reading.

Looks like this http://www.zex.com/zx/wet-ls1-ls6-ni...-75-125hp.html is the best / easiest kit to install with the LS1. Reading the instructions tells me that with 75hp shot it should be fine with standard ingnition timing, however will be getting this checked with a dyno/dale.

Scott - I still have to watch that video but like the rest of your stuff should be very helpful.

Always wanted to play around with NOS, so hopefully it goes well and some fun times are ahead and lowers et's at the strip are achieved, might even get my 11's

[Ke26 Wagon]

Took the nugget out to the Sunday street meet. Managed a 13.1 @107mph. Now needs new tires. So time to start collecting some spares to destroy at the nats.

Need to fix / replace some suspension parts so that is going to put of the gas for a little while.

[Ke26 Wagon]

Well after fixing some suspension stuff, the NOS is back on the agenda.

Firstly looking at redoing the fuel system as on a hot day there is a little/lot of fuel smell in the car. Looking at getting one of these: https://shop.rocketindustries.com.au/products/MOC4041

and then pissing the pre-pump and the surge tank off and just have the 044 and reg. Any thoughts / comments on the fuel sumps?

Hopefully this will take away the fuel smell and make it a litte neater in the boot as well as still being able to support the future NOS upgrade.

[Mr Jones]

Only problem I could see with the EFI is under braking/ street driving fuel might slosh forward and starve the pump and it might stall. You could make a bit of a baffle setup to weld in with it?

[Marv]

I spotted this cruising around on Father's Day. Looked super-neat.

[Ke26 Wagon]

When installing you cut 5 holes out in the tank to act as a baffle and then weld on the sump. Street duties I am very easy on it, however it does go in the odd burnout comp and that may show up some problems????

[Mr Jones]

Keep the tank full when you're doin skids?

[mr_wat_the]

keep the surge tank and pre pump, dont want to run the risk of leaning it out

[Ke26 Wagon]

keep the surge tank and pre pump, dont want to run the risk of leaning it out

Leaning out a little on a standard motor, I dont think will hurt it. 2 min on the limiter might but!!

no its going!!! with the fuel sump it will fix the fuel smell in the boot (that will disappoint you I know) and the hole in the tank. I have spoken to a couple of people who have done the same and no problems. At the end of the day it will only ever run 11's at best and do skids.

I will just put a little more fuel in it when I either skid it or drag it.

[Ke26 Wagon]

well the fuel sump fucked up (well I did actually). Second last weld it popped the tank. So called in a favour and am getting a alloy tank made up. Should be done by the end of the week.

Also finished up making the new airbox that looks a little better than the old one and will keep the authorities happy. Just need to grab some pinch weld and black bolts

[Mr Jones]

Popped the tank?? Is that a polite way of saying it blew up in your face?

[Ke26 Wagon]

haha yeah sort of. Didnt explode but the tank more resembles a ball shape. Went from about 300mm thick to 600mm

[GSRman]

need clean overalls?

[Ke26 Wagon]

need clean overalls?

slightly, would have been bloody funny to watch. The tank was on some stands and the jumped of them and across the yard about a metre. Lessoned learned however!! Dog shit himself to and wouldnt stop barking at it, took a while to convince him that it wasnt going to do it again

[Mr Jones]

Lol. Definitely a better story than "I got killed by esploding fuel tank yesterday"

[Ke26 Wagon]

Finally have the tank back from the fabricators. He put a little sump in it as well as making it a little narrower and shallower due to the height of the car and just incase I want to tub it later



I decided it was time to make a little puke tank for the diff. Being a spool and where the breather is it breaths a little heavy during burnouts and spirited driving in circles.


And while I was at it I redid the exhaust to get it a little higher.