Charging my LS1 soon

[korrupt]

Do you need to do anything with the fuel pump (or rest of the system) for the 1900 unit ?

[white lie]

It may be fine on very low boost but I personally wouldn't bother or even trust it. Bigger intank pump as a minimum, otherwise feed in to a surge and decent pump (or pumps) after that. Kit comes with 60lb injectors and rails to suit

[IJ.]

FI and a stock fuel system... Russian Roulette with 5 loaded chambers....

[v8fazz]

On standard boost I believe it may be ok but a Walbro intank would still be a good idea. But then you still run the risk of the pump sucking air if the tank gets low.

I have one of these - http://www.ls1.com.au/forum/showthre...-System-4-2ltr

Gives me room to grow a bit later down the track, and I dont have to worry about sucking air if the main tank gets a bit low

[Micks]

Too risky as how old is the existing pump? If it dies @ wot good night mota!

[IJ.]

"Sucking air"?? WTF...

It's in a bucket, by the time it "sucks air" it stops 30 seconds later

where do you guys get this crap....

[v8fazz]

Sorry, I was referring to fuel starvation during hard cornering, spirited driving, etc if the fuel tank happens to get very low and the pick up is no longer submerged in fuel. As we all know you shouldnt let the tank get this low anyway, but it can and does occur sometimes for various reasons.

A surge tank will obviously prevent this from happening since the main tank feeds the surge tank, and the surge tank feeds the engine.

Maybe I should of chosen my words better..

[IJ.]

Sorry, I was referring to fuel starvation during hard cornering, spirited driving, etc if the fuel tank happens to get very low and the pick up is no longer submerged in fuel. As we all know you shouldnt let the tank get this low anyway, but it can and does occur sometimes for various reasons.

A surge tank will obviously prevent this from happening since the main tank feeds the surge tank, and the surge tank feeds the engine.

Maybe I should of chosen my words better..

The Pump and pickup are in a spring loaded bucket pressed against the bottom of the tank... Unless you're into a very very very long high G corner I can't see what you're describing happening..
(I do however run an 8 Litre Surge tank so it can't ever )

[v8fazz]

The Pump and pickup are in a spring loaded bucket pressed against the bottom of the tank... Unless you're into a very very very long high G corner I can't see what you're describing happening..
(I do however run an 8 Litre Surge tank so it can't ever )

Ok, no problems. All Im going on is what Ive been told over the years but Im always happy to be corrected and to learn something new

I was always under the impression that it was for these reasons that most people fit surge tanks? But from what you said it would be more of a safety measure / extra insurance just to be sure it never has the chance of happening, hence your 8 litre tank!

Im happy to have the peace of mind knowing its there and I dont have to worry!

[IJ.]

The stock system doesn't do too bad a job, the bucket acts like an internal 2 Litre surge tank, just needs a decent pump or 2 in there.

Mine only has a 64L main tank so the extra 8 helps out a bit and made it easier to mount the 2x 460L Walbro E-85 pumps and had the added bonus of preventing any possibilty of surge on track days.

[v8fazz]

No worries, thanks for the info IJ.

[Crazykent]

1900 or 2300 will be fine, only other option would be a Whipple. Some say the 2300 works well, others the 1900. My opinion is that if they can run 1900's on 6L's and bigger than its adequate for a 5.7L.
I run a Maggie 1900 and don't regret going with the smaller one. Makes plenty of power, runs fast times and throttle response is awesome.

Can do either. I would just send them to Higgins and either get him to port yours or exchange them. Plenty of people have gone the aftermarket route though (there's a set in the FS section that would work well actually).
Do you have a cam in it yet? I wouldn't bother with the heads unless you've got a decent cam or plan on doing it. If you haven't got either, then you're starting to look at 4500-5500 here already, in which case, I would just go straight to the blower and slot a cam in later, leaving the heads stock.

I wouldn't bother with the VCM box. A sealed pod tends to work well with blowers but IMO the difference between what you have now and other options is more the 'icing on the cake'. Put the blower on, see how it goes. When you crave a little more, then play with the airbox, throttle body, cam, E85 etc etc etc

Yeh i saw those heads but like with the blower he's selling too i already decided i wasn't going to buy anything with moving parts 2nd hand
and run the risk of buying someone else problems or potential for problems.

1900 it is then.

Well with the cost of the blower already and the potential for things to break in the future with all this new power i dont think ill be doing a cam for long time.

Ok i will stick with the growler.

Thanks for that mate very informative.

[Crazykent]

I know the prices have crept up slightly, but what about doing an LSA conversion? $12,500 from Holmart.... Sell your motor off for $1k (or leave it as a spare in case you decide to go back to stock and sell the car). How much are the 1900/2300s going for these days? For that bit extra a brand new crate motor with newer tech, bigger capacity seems to be a viable option?

Yeh as micks said. already looked into it, got unnecesarily excited lol.

[Crazykent]

Mate, the 1900 will be perfect.

My VY LS1 ute has a Harrop 1900, boost friendly cam, fuel system, standard heads (your forcing air into them anyway) @ 10psi and PLENTY of power, along with a mountain of torque. WAY more power than anyone would ever "need" for a daily driver.

Any honestly, if and when the engine ever gives up I'd most likely just rebuild it with a stronger bottom end and wouldnt bother stroking it, its simply not really needed if your blower install is set up right.

Just do it!!!

I am certain of the 1900 now after reading through this thread.

Everyone seems to have a cam with their blower, what am i missing out on?

Im already up for 12 grand or whatever for the blower another 7 grand to do a cam upgrade hardly seems worth it. Given ill need to do the internals too right?

[feistl]

Depends how aggressive the cam is. I mean if you go big, yeah the costs really add up. But if your doing a blower (which means a retune) getting a blower specific cam (something like the stock GT9 cam) wont require a big outlay. Decent set of springs (Which you should do anyway) and the cam itself. Considering your already paying for the tune, its worth looking at. Again though, im talking a small blower specific cam... Anything "big" is a different story in terms of cost.