LS1 and L76

[sideshow]

value for money the holden pump sender assembly for gen3 is cheapest
and easiest

pump sits in a tiny swirl pot
pump pumps fuel to engine
just after outlet of pump assembly u fit a t piece and run the fuel hose
back into the fuel pump assembly
where inside the unit it has the reg and returns the fuel back into the tiny swirl pot
very nice and neat conversion


another prob with new ls2 and l76 is u dont get some plugs for the ecu and gbox and o2 sensors and air flow meter

most of these are on the body loom which costs alot from holden

so im starting to bring in the missing parts and making the missing looms

[Aussie Mike]

The only problem with it is it can be a bit tall to fit in some fuel tanks. The CR runs a VN commodore tank which is quite flat. I made an external swirl pot tank assembly that the whole LS1 pump setup slides into. There's a bolt up flange that seals it into the top with a rubber O ring. It's then fed from the intank pump and also returns to the main tank.

I decided not to use it in favour of the Bosch 044 and Boxhead has it now. It probably would have ben a much quieter option in hindsight. David might have a picture of it somewhere, unfortunately I cant find my pics of it.

Cheers

[Rebel1]

Originally Posted by Aussie Mike

The only problem with it is it can be a bit tall to fit in some fuel tanks. The CR runs a VN commodore tank which is quite flat. I made an external swirl pot tank assembly that the whole LS1 pump setup slides into. There's a bolt up flange that seals it into the top with a rubber O ring. It's then fed from the intank pump and also returns to the main tank.

I decided not to use it in favour of the Bosch 044 and Boxhead has it now. It probably would have ben a much quieter option in hindsight. David might have a picture of it somewhere, unfortunately I cant find my pics of it.

Cheers

Thanks Mike, a pic would be good. Some idea of size would be great if some1 has them.

[Rebel1]

Originally Posted by sideshow

another prob with new ls2 and l76 is u dont get some plugs for the ecu and gbox and o2 sensors and air flow meter

most of these are on the body loom which costs alot from holden

so im starting to bring in the missing parts and making the missing looms

Good on ya sideshow.

Give me a hoy when you want my harness.

[stephen low]

Interesting to read the Bosch 044 is noisy, suppose I will find out once I eventually fire mine up.

I did try to find an in tank pump to fit the GF fuel tank that came with my kit, but the tank is too squat. Bought an AU tank from Ebay that didn't work but at least I sold the pump/surge pot for more than I bought the whole shebang for. Anyone want a plastic tank by the way??

Like Mike, long term would be a replacement ali tank with surge and inbuilt pump arrangements. Will have to struggle on until then.

Cheers

[Rebel1]

Anybody have the dimensions of the Holden intank bucket/pump thingy?.
Are there different versions of the same thing?.

Cheers

[WKB]

Rebel,
For ease of fitting, the pump from a BA falcon would be better pump to use than the one from a late model commodore. The falcon pump uses 5 or 6 bolts to hold it position where the commodore uses a circlip. The fuel tank from the harrison now uses a falcon pump. The first few tanks that had the late model pumps that were made used a late model fuel pump from commodores(which I have) and then they were changed to the ford pumps.
The commodore sedan pump that I fitted I had to shorten the locating tubes by about 50mm to fit it into the tank. If you are going to fit a holden pump the VY ute pumps have shorter locating tubes than the sedans.

Warren

[Rebel1]

All good info fellas.

The tank that I currently have is 200mm (8") deep.

Warren, can you remember how deep the harrison tank is?.

Cheers
Les

[PCC]

Considering Ford gear Les?????

Swap and change, swap and change

Good job the Cold War is finished - You would be one of those double spy types

[boxhead]

I have got one sitting in a box at home, its yours if you want it.
It is new, it is one that Holden sent as a replacement when the early ones where being replaced under a recall.
If you dont want the whole thing then I can just measure it up and post the dimensions here for you.

[Rebel1]

That would be just fabulous. Thanks a heap.

I'm not real sure that I'd use it as I am trying to use my existing Stainless tank and having it modified for Fuel Injection. Depth of the tank may be a problem. But I don't want to toss this stainless tank if at all possible.

I'll send my address to you by PM. Any costs sending it would be gladly paid.

Thanks again

[boxhead]

The way mine is set up Les is that I am using a standard pump to draw the fuel from the tank and Aussie Mike made a swirl pot that the commodore pump (the type I have) fits inside.
In doing this I am currently only using one fuel line to the front of the car (although I will be running a return line incase it is needed in the future)

[Rebel1]

Originally Posted by boxhead

The way mine is set up Les is that I am using a standard pump to draw the fuel from the tank and Aussie Mike made a swirl pot that the commodore pump (the type I have) fits inside.
In doing this I am currently only using one fuel line to the front of the car (although I will be running a return line incase it is needed in the future)

Understand that Box, and was something I am considering. The reason being that I have a carter electric pump previously fitted to the tank....I could use that to pump to a separate swirl tank.

However, I see this as duplication....I can understand Mike doing this as he will track his car but for a weekend driver I think that's an overkill.

It seems that a healthy LS2/L76 can be made to develop some 400 and a bit HP at the rear wheels with a cam and tune.

It also seems that the standard pumps are good for about that but for how long is the question. On the track one would need more fuel for sustained high revs., but on the road the only need might be between stop lights.

That's why I'm looking for an efficient in tank set up that is simple, yet wont starve the injectors for short distance at high revs.

I suppose that behind all this is my thought that 400RWHP is the point at which a cobra turns from an enjoyable drive into something that one needs to be very careful of.

Cheers and thanks for the help
Les

[Aussie Mike]

I'm working out a design for an in tank system at the moment. I'm already sick of the sound of the Bosch 044 pump. Even more noticable with the stealth exhaust in place.

I reckon I'll build a stainless or aluminium tank with plenty of internal baffles and a swirl pot inside. I'l use an in tank Bosch 040 or 023 pump. These flow nearly as much as the 044 but being submerged in the fuel shouldn't be so noisy. It'll make my plumbing a bit simpler too with fewer connections to worry about.

The other option would be a pair of Walbro in tank pumps. Two of these would flow enough to feed anything.

Cheers

[WKB]

Les,
Sorry I can't give you the tank measurement yet, the car is at the upholesterer until Friday. I will measure it when I get the car back.
I measured the VZ ute pump I have and it is 220mm long compressed, the pot is 120mm long and 100mm dia.

Warren

[Rebel1]

Thanks Warren, thats deeper than my tank.

Looks like I've gotta get more inventive.

Thanks again
Les

[400TT]

Les, maybe something like this...

[sambo]

I've been talking to Sean Mullins who I believe makes a lot of custom alloy tanks for hot rods, etc. I might give him a call soon to find out the various solutions he offers... considering it's about $300 for a GM pump that won't be enough to feed 400HP on a track, I might as well get it right first time.

What are these Bosch 044/040/023 pumps worth?

[Aussie Mike]

Bosch 044 pumps go for about $240. The in tank versions are a bit cheaper. I may have an 044 with a billet bracket for sale before long (Barely used)

Cheers

[sambo]

I just found a great resource for the Darksiders...

http://www.ls1howto.com/