LS1 in a boxster

[landrovered]

Originally Posted by Mike_Yi

Sorry to guess Landrovered. Here's some specifics for you.

The LS1 block is part number 12561166.

The LS7 block is part number 17802854.

They might both be small blocks (though I'm not sure what the definition of small block is versus big block with current motors), but they are definitely NOT the same block.

Wouldn't you expect a block with a different bore to have a different part number?

All the LS engines are in the same family. They all share common components whether LS1 or LS9. They have evolved but are essntially the same design. Do you really want to go to the carpet on this one?

Much like the Gen I and II small-blocks, almost all the hardware amongst the different LS variants are interchangeable. In fact, except for the smallest (4.8L) and largest (7.0L) motors in the LS lineup, all share the same 3.622-inch stroke. In most instances, the cylinder heads, camshafts, crankshafts, and intake manifolds can all be mixed between different LS motors.

LS Engines decoded...The Ultimate Guide To Every Gen III And IV Small-Block Ever Built

[stephen wilson]

Actually, 50/50 is not the "ideal" weight distribution, if there is such a thing. WD is a compromise, like everything in automotive design. But for a "sports car", you should have a 55-60% rear weight bias. Manufacturers who quote the "perfect 50/50 weight distribution" do so because that's the best they could do!
Steve

[Lobo1186]

interesting... never heard that about weight distribution. well either way. It wouldnt be hard to maintain or get whatever WD you want.

[stephen wilson]

It's much harder to change than you might think. Which is why no production car that I'm aware of has more than 50% on the rear axle unless it has a mid- or rear- mounted engine. The rearward bias gives more traction for acceleration.

[Lobo1186]

Originally Posted by stephen wilson

It's much harder to change than you might think. Which is why no production car that I'm aware of has more than 50% on the rear axle unless it has a mid- or rear- mounted engine. The rearward bias gives more traction for acceleration.

the boxster is. So what im saying is if the extra weight of the LS throws off the the WD. it will not be hard to compensate.

but im pretty sure its more than just traction for acceleration. WD is more about the fundamentals of handling.

[stephen wilson]

Yes, a heavier engine would give more rear weight. Whether that is a problem or not depends on how far back that weight is centered, and by the magnitude of the change. It would be very hard to change, the engine/transmission position is fixed, so what do you move forward to add weight there? Lead bars would add weight to the front, but obviously not be beneficial to overall performance!

I was simplifying on the effects of WD on handling, stating the most important reason, polar moment of inertia is another important benefit af a mid-engine installation. They write whole books on the subject, too much to get into here!

steve

[Lobo1186]

well if its a mere 20 or so lbs some lightweight body panels and what not. and you might be able to kill two birds with one stone and go for some lightweight engine components shed some weight and increase RPMS and posibly even flywheel or what have you.

so if the difference is small enough it can be dealt with if it not i can be compensated. and who knows with more power maybe some rear weight wouldnt be bad atl all

[Mike_Yi]

Originally Posted by landrovered

Do you really want to go to the carpet on this one?

Nope. But mostly because I really don't care that much.

[Lobo1186]

why cant we be friends!

haha

but I think we can all agree that an LS1 would be a blast in a box

[boxster_s_boy_34]

Originally Posted by Mike_Yi

Nope. But mostly because I really don't care that much.

You must have cared an awful lot to go look up part numbers and still get embarassed

[Frodo]

Originally Posted by boxster_s_boy_34

You must have cared an awful lot to go look up part numbers and still get embarassed

Speaking of which...when I lived in Manhattan, KS, I would have spelled it "glutton". You must be hangin' out in Junction City too much.

[Topless]

I am sure a V8 Boxster will happen soon. The devil is in the details and there are a LOT of details. All that is required is someone with $$$ and patience... A LOT of patience because the first prototype will require 1000 shop hours?? to sort out. Will it be a fully functional, street legal car with AC, PS, Cruise, etc.? Not likely. The first ones are sure to become stripped and caged dedicated track weapons with no accessories. Over time (2-3 years of development) a fully street legal car is possible.

[boxster_s_boy_34]

Originally Posted by Frodo

Speaking of which...when I lived in Manhattan, KS, I would have spelled it "glutton". You must be hangin' out in Junction City too much.

Way to get twisted around one detail that has nothing to do with the post or conversation. FYI, I don't go HANGING out in Junction City either. Why are you so aggressive with your ignorance?

[Frodo]

Originally Posted by boxster_s_boy_34

Way to get twisted around one detail that has nothing to do with the post or conversation. FYI, I don't go HANGING out in Junction City either. Why are you so aggressive with your ignorance?

Kidding, I was KIDDING! Neither aggression nor ignorance was involved, I swear. Geez, can't anyone take a joke anymore? (I see your spelling has improved.)

[boxster_s_boy_34]

In that case I apologize, but I'm having some cam shaft issues so I may have read more into it than there was. This car is kicking my ass! I've never had anywhere near this many issues in such a short time period with an aircraft.