Charging my LS1 soon

Just got a few questions i hoped some intelligent lads could offer some insight on.

Going the harrop 1900 over the 2300 if im never going to stroke it is the aboslute best choice, correct?

if i wanted more power before it goes on the dyno i was thinking of doing something with the heads
do you just get work done to your stock heads or do you buy aftermarket ones? what would the cost of either be
and is it worth it for the power gain?

i've got a growler intake now i was told it would help improve power to go with the VCM airbox, is that worth the
extra 500 bucks? wouldn't the growler be much the same if both are an airbox style intake?

Thanks for your time!

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

Bloody good advice, your almost swaying me too! But I know I couldn't help myself frying the rears, ending up changing the tyres every coupla months! :burnout:

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?

Good idea but cost will depend how much you do yourself? Pre 6L models will require more work, converter boxes, ext harnesses, injector adapters, throttle body etc etc.

The only thing I see with the 2300 vs the 1900 is it can flow more air with less boost. There's lots of variables though and I come from a turbo back ground mainly and thats even harder trying to work out whats best!

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Originally Posted by offshore

The only thing I see with the 2300 vs the 1900 is it can flow more air with less boost. There's lots of variables though and I come from a turbo back ground mainly and thats even harder trying to work out whats best!

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Partly correct, the bigger charger can flow more volume at a given rpm, but technically speaking more air = more boost. You dont need to spin a 2300 as fast to make the same boost level as the 1900, which can result in less heat being produced but it depends on a number of factors.

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!!! :)

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Originally Posted by v8fazz

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!!! :)

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Yep, what he said!!! :rofl:

I dream of stroking, but I know its just a dream; I'm also running an LS1 with a 1900, friendly cam and fuel system upgrade and the reality is that it is PLENTY powerful for the road ......... plus, as I keep finding out ................... bits break with all that power *wink* ............ (not complaining mind you.............)

x2 - Just do it!!! :chuckapproves:

What have you broken so far Franga?

Ive had no dramas yet (already had NPC clutch and also got Trutrac at the same time as blower) but then you need traction for things to break, and with the M6 and 3.9's it can break traction pretty much at will! :)

I really shouldn't click on super charging an LS1 threads, when I've just convinced myself for the 3rd time I don't need one .............

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Originally Posted by XUV

I really shouldn't click on super charging an LS1 threads, when I've just convinced myself for the 3rd time I don't need one .............

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Everyone "needs" one ;)

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Originally Posted by IJ.

Everyone "needs" one ;)

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shut up , shut up, shut up ;)

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Originally Posted by XUV

shut up , shut up, shut up ;)

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Might be the last chance we have to own something like this, I for one don't intend to miss out :D

I remember that horrible time in my life before I had a supercharger, it was like being virgin all over again. All my mates seemed to be getting them, and I was stuck with NA. Then finally my time came and I too got to join the club. Life has been wonderful ever since ;-) I'm just waiting for the opportunity to have a go with 2 (superchargers that is)