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ls3 or lsx for boost

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Old Jul 8, 2018 | 12:36 AM
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Default ls3 or lsx for boost

I have the opportunity to purchase a new engine, for ProCharger should I go stroker ls3 418 or lsx 510 iron block ?

this is for rolling racing not from the dig
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Old Jul 8, 2018 | 08:02 AM
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Yes you should.
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Old Jul 8, 2018 | 09:34 AM
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Originally Posted by stevieturbo
Yes you should.
which one ?
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Old Jul 8, 2018 | 09:37 AM
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I vote lsx
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Old Jul 8, 2018 | 11:11 AM
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Originally Posted by typeav
which one ?

No real clue when you've given such little details about potential needs or goals to even attempt a decision.
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Old Jul 9, 2018 | 11:32 PM
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The LSx is more suited for boost. The obvious thing is it’s a quality cast iron block, it has a thicker deck, 6 Bolt Head pattern and billet steel caps and longer cylinders but one thing a lot of people overlook is the block is it’s a priority main block.

On that note I’d put darts LS Next SHP Pro or even their skirtless iron LS Next up against the GMPP LSx any day of the week.

Last edited by MVP @ TheRaceEngineShop; Jul 9, 2018 at 11:33 PM.
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Old Jul 10, 2018 | 05:12 AM
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Originally Posted by MVP @ TheRaceEngineShop
The LSx is more suited for boost. The obvious thing is it’s a quality cast iron block, it has a thicker deck, 6 Bolt Head pattern and billet steel caps and longer cylinders but one thing a lot of people overlook is the block is it’s a priority main block.

On that note I’d put darts LS Next SHP Pro or even their skirtless iron LS Next up against the GMPP LSx any day of the week.
Whilst a base LSX block is stronger...I just cannot see a 510ci LSX block being a super strong boost application ?

Smaller capacity yes...510, no.
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Old Jul 10, 2018 | 10:08 AM
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I need the engine to put down N/A 600 or 700 rwhp but capable to support 1100 hp as I want to add with boost another 300 rwhp and that will make it in the 900-1000 rwhp

I want reliability thats why I prefer to spent extra in getting the best parts possible
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Old Jul 10, 2018 | 10:56 AM
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Really, for only 1000hp, pretty much any alloy factory block will be fine. If you wanted strongest factory option...go LS9.

But a well built LS3 will be perfectly fine and without the weight penalty of the iron LSX
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Old Jul 10, 2018 | 05:45 PM
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Originally Posted by stevieturbo
Really, for only 1000hp, pretty much any alloy factory block will be fine. If you wanted strongest factory option...go LS9.

But a well built LS3 will be perfectly fine and without the weight penalty of the iron LSX
I just have to say its a crazy hp world we live in now. 10+ years ago that would have been a crazy sentence
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Old Jul 10, 2018 | 05:56 PM
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Originally Posted by Under-Pressure
I just have to say its a crazy hp world we live in now. 10+ years ago that would have been a crazy sentence
Even 10 years ago it wasnt that uncommon...

But today it is almost the norm ! and let's face it, very easy to achieve.

Perhaps more crazy that even in the 4cyl world, there are many in that area too.
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Old Jul 10, 2018 | 06:10 PM
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Originally Posted by stevieturbo
Even 10 years ago it wasnt that uncommon...

But today it is almost the norm ! and let's face it, very easy to achieve.

Perhaps more crazy that even in the 4cyl world, there are many in that area too.
True. In 2003/4 i was around 680 rwhp and thought that was really fast!

Makes you wonder what the norm will be in another 10 years! 1500rwhp? 2000?
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Old Jul 10, 2018 | 06:32 PM
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Originally Posted by Under-Pressure
True. In 2003/4 i was around 680 rwhp and thought that was really fast!

Makes you wonder what the norm will be in another 10 years! 1500rwhp? 2000?
In practical terms 1000hp is pushing usability for a road car...especially a 2wd one

But on a price point it's relatively easy to achieve for a lot of people. Prices of stuff has just fallen.

In 10 years time ? Costs, stupid rules or legislation, tree hugging hippy hypocrite ***** might make some stuff more difficult. So best enjoy what we have while we can !
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Old Jul 10, 2018 | 06:42 PM
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Originally Posted by stevieturbo
In practical terms 1000hp is pushing usability for a road car...especially a 2wd one

But on a price point it's relatively easy to achieve for a lot of people. Prices of stuff has just fallen.

In 10 years time ? Costs, stupid rules or legislation, tree hugging hippy hypocrite ***** might make some stuff more difficult. So best enjoy what we have while we can !
I can't speak for Ireland, I'm afraid I'm not too aware of the political environment there, but I'm not too worries in the states. Things have a way of working out it seems.

I do believe that in 15 years we'll all be upping voltage and amps instead of fuel/boost! 1500+AWD instant TQ/HP should be a lot of fun!
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Old Jul 10, 2018 | 06:48 PM
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In performance terms, there is a lot to be said for electric.

Of course they sound *****, they have no soul, they're heavy, they've no practical range etc etc But if it was purely a race car to go fast, a lot of those things would be irrelevant.

In some respects an electric drag car would have a lot of potential given the nature of the racing.

For a usable fast road car....they've still a hell of a long way to go. And no, Tesla arent even close for anyone unless they do low mileage. They do tick a lot of boxes...but they've still a long way to go.

The bottom line is batteries are just ****.
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Old Jul 10, 2018 | 06:54 PM
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Originally Posted by stevieturbo
In performance terms, there is a lot to be said for electric.

Of course they sound *****, they have no soul, they're heavy, they've no practical range etc etc But if it was purely a race car to go fast, a lot of those things would be irrelevant.

In some respects an electric drag car would have a lot of potential given the nature of the racing.

For a usable fast road car....they've still a hell of a long way to go. And no, Tesla arent even close for anyone unless they do low mileage. They do tick a lot of boxes...but they've still a long way to go.

The bottom line is batteries are just ****.
I agree, but the batteries wont be crap forever. I've read about a few amazing advances, it's just a matter of making it cost effective. I do believe in 15 years they wont be working with the same battery technology that they are now.

and yes, they sound like poop
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Old Jul 10, 2018 | 07:11 PM
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If they can nail batteries, long life, faster re-charge, then electric vehicles really are the future. There's good and bad with that....hopefully they just allow them to become mainstream without trying to restrict our gasoline engines and let us enjoy our cars.

I'd love an electric vehicle for work myself, but until they can do 400+ on a single charge...AND recharge quickly there's not a chance it'd be any use to me. But when 80% of fuel prices here are tax to the government, anything that would stop my money going to them greedy ***** when I buy fuel could only be a good thing !

There's an electric VW Beetle that races at Santa Pod in England. And it's super fast and super consistent for what it is. Can't think of too many others though
Slightly off topic I know, but it is cool.

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Old Jul 10, 2018 | 10:34 PM
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For the cost of a new LS3 stroker I think the workshop can rebuilt my current LS1 and make it stroker 383, that will save me half the cost and I can go with smaller pulley and make up the difference.

My current LS1 with 4.25" pulley the car is making 636 rwhp on Mustang Dyno that means that if I go with a 3.4" I can get maybe another 200 rwhp

what you guys think ?
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Old Jul 10, 2018 | 11:08 PM
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If you are staying with your stock block, skip stroking it. I have never seen a 383 make any power especially due to the extra stroke.
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Old Jul 10, 2018 | 11:28 PM
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Originally Posted by typeav
I need the engine to put down N/A 600 or 700 rwhp but capable to support 1100 hp as I want to add with boost another 300 rwhp and that will make it in the 900-1000 rwhp

I want reliability thats why I prefer to spent extra in getting the best parts possible
LSX at more or less the same bore/stroke will give you more wiggle room, especially with the 6 bolt heads. If the weight penalty (extra 180lbs) bothers you, an aluminum aftermarket block is an option. Either Dart or LSR. It really depends on your budget

Last edited by ForceFedC5; Jul 10, 2018 at 11:28 PM.
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