Corvette GS vs Evora 400

[12,000 RPM]

Interesting match up. Disappointed that the Evora only weighs 100lb less than the Vette. Should be like 2700-2800lbs IMO.

http://www.youtube.com/watch?v=YRsAMdktpEY

[MrH]

3200 lbs is too heavy for a 400 horsepower car?  Where do you think they can just cut 400-500 lbs?

[MX793]

Too heavy.  Also too huge.  For only 2 seats.  You can get cars that seat 4 adults in the same footprint.

[12,000 RPM]

3200 lbs is too heavy for a 400 horsepower car?  Where do you think they can just cut 400-500 lbs?

Ditch the useless rear seat and use the Exige platform. Exige with the same engine weighs 700lbs less. ~100-200lb of sound insulation and a wheelbase stretch for highway comfort/stability = done.

[MrH]

Ditch the useless rear seat and use the Exige platform. Exige with the same engine weighs 700lbs less. ~100-200lb of sound insulation and a wheelbase stretch for highway comfort/stability = done.

[Eye of the Tiger]

How do these little skateboards weigh 1000 lbs more than a Versa S?

[SJ_GTI]

Interesting comparison. Would have liked to see track times rather than just the acceleration and braking tests.

Count me as surprised the lotus isn't significantly lighter as well. makes you wonder if the Corvettes "huge" V8 is actually lighter than the Lotus' supercharged V6.

[Cookie Monster]

Interesting comparison. Would have liked to see track times rather than just the acceleration and braking tests.

Count me as surprised the lotus isn't significantly lighter as well. makes you wonder if the Corvettes "huge" V8 is actually lighter than the Lotus' supercharged V6.

Small block all-aluminum V8 is most likely lighter than a DOHC V6 with a supercharger.

I'd look up weights but I'm too lazy.

[12,000 RPM]

LSX is indeed tiny. Here's probably the closest comparison- LSx next to an N/A VQ35. VQ35 looks huge by comparison.... imagine a blower on top of it. (Not sure if this will work for you guys)



Kind of wish GM had made a pooprod V6 instead of the LFX. Would run a little rougher but it would basically be an LS1 powerwise with a much more interesting engine note

[Eye of the Tiger]

Doing a motor swap on a VQ is like shoving a bowling ball into a drinking straw. Doing a motor swap on a Chevy pooprod is like throwing a hot dog down a hallway.

[MX793]

LSX is indeed tiny. Here's probably the closest comparison- LSx next to an N/A VQ35. VQ35 looks huge by comparison.... imagine a blower on top of it. (Not sure if this will work for you guys)



Kind of wish GM had made a pooprod V6 instead of the LFX. Would run a little rougher but it would basically be an LS1 powerwise with a much more interesting engine note

The new Vortec 4300 is essentially a gen V (new LT1) motor with 2 cylinders lopped off.

[SJ_GTI]

LSX is indeed tiny. Here's probably the closest comparison- LSx next to an N/A VQ35. VQ35 looks huge by comparison.... imagine a blower on top of it. (Not sure if this will work for you guys)



Kind of wish GM had made a pooprod V6 instead of the LFX. Would run a little rougher but it would basically be an LS1 powerwise with a much more interesting engine note

WHat is the LFX?

GM was going down the path of pooprod V6's before 2008, but when they had to consolidate their operations they made the (rational IMHO) decision to drop all non-V8 pooprods and focus entirely on DOHC engines.

IIRC Pontiac had a nice little 3.9L pooprod V6 in one of their FWD sedans before they went under.

[68_427]

Ditch the useless rear seat and use the Exige platform. Exige with the same engine weighs 700lbs less. ~100-200lb of sound insulation and a wheelbase stretch for highway comfort/stability = done.

They tried this before and it sold even worse than the Evora

[68_427]

LSX is indeed tiny. Here's probably the closest comparison- LSx next to an N/A VQ35. VQ35 looks huge by comparison.... imagine a blower on top of it. (Not sure if this will work for you guys)



Kind of wish GM had made a pooprod V6 instead of the LFX. Would run a little rougher but it would basically be an LS1 powerwise with a much more interesting engine note

The LFX is already light and small.  More so than the Vq, and makes LS1 power wtf more do you want

[GoCougs]

GM's current "hot" pooprod V6 is the LTI-derived 4300 in the stripper trucks and at 285 hp it ain't shabby, and if one were to lop two cylinders off the LS7 you'd get ~380 N/A hp from a tiny package, which would be phenomenal. I suspect there are issues with balance and smoothness at the higher RPMs and power owing to the 90 deg V (whereas most everyone else uses 60 deg V, including GM in its current 3.6 DOHC V6).

GM had a decision point some 10-12 years ago - continue with hugely disparate 6 cylinder family (esp. 3400 V6, 3800 V6, 4300 V6, Atlas I6) or take the lead from the Japanese Big Three and develop a single 60 deg DOHC V6 platform to be used everywhere - trucks, SUVs, sedans, performance cars, luxury cars. GM could have tested waters with a 60 deg pooprod V6, but a V6 of ~4-4.5 liters of any deg V I bet would be too rough for most of those applications.

[12,000 RPM]

Yea thats a lot of mass. Still, the 6.2L pooprod V8 is good enough for 90-100K Cadillacs, and ye olde 3800 served dutifully in countless Buicks. Their DOHC V6 is good business though

[Raza]

Ditch the useless rear seat and use the Exige platform. Exige with the same engine weighs 700lbs less. ~100-200lb of sound insulation and a wheelbase stretch for highway comfort/stability = done.

That's a different car then.....you're saying it could be lighter if it were a different car?  If it were a plane, it could fly.  Those engineers are idiots!

[Raza]

They tried this before and it sold even worse than the Evora

Good looking car, though.

[Gotta-Qik-C7]

LOL @ only 100lbs lighter...........     

[Laconian]

That's a different car then.....you're saying it could be lighter if it were a different car?  If it were a plane, it could fly.  Those engineers are idiots!

It could be a good deal, depending on the price.

[12,000 RPM]

I like the Europa concept better. That little thing only weighed 2200lbs. Way more Lotus. Evora is like an RC Cola 911 C2.

[GoCougs]

Yea thats a lot of mass. Still, the 6.2L pooprod V8 is good enough for 90-100K Cadillacs, and ye olde 3800 served dutifully in countless Buicks. Their DOHC V6 is good business though

Engines become rougher as cylinder count decreases and cylinder size increases (heavier pistons firing fewer times per crank rev), and that is the reason why there are no 3.0L I4s or 4.5L V6s. They'd run just fine and make good power but they'd be terrible to live with in a retail passenger vehicle.

[RomanChariot]

Engines become rougher as cylinder count decreases and cylinder size increases (heavier pistons firing fewer times per crank rev), and that is the reason why there are no 3.0L I4s or 4.5L V6s. They'd run just fine and make good power but they'd be terrible to live with in a retail passenger vehicle.

The only 3.0L I4 that I can think of off hand is the one used on the Porsche 944 and 968.

[GoCougs]

In times past there are a number of similar examples - from the GMC 5.0L V6 of the '50s and '60s GMC to the Ford 4.9L I6 used until the early '90s.

Huge I4, I6 and V6s are common in commercial trucks these days (also cost effective as they're cheaper to produce - fewer valves/pistons/bearings/injectors/ports/etc. per unit of displacement).

[68_427]

Also I just started watching the video and no Grandsport is only 3250lbs.  The curb weight is actually over 3400lbs. 

[Raza]

I like the Europa concept better. That little thing only weighed 2200lbs. Way more Lotus.

And a massive failure, because it didn't differentiate itself enough from the car on which it was based.

[2o6]

IIRC Pontiac had a nice little 3.9L pooprod V6 in one of their FWD sedans before they went under.

"Nice"

The 3500-3900 were garbage engines that despite being newer couldn't surpass the Buick 3800.

Fuck outta here.

[12,000 RPM]

And a massive failure, because it didn't differentiate itself enough from the car on which it was based.

That's no indictment of the concept though

[SJ_GTI]

"Nice"

The 3500-3900 were garbage engines that despite being newer couldn't surpass the Buick 3800.

Fuck outta here.

There were in the low to mid ~200's in power, have VVT, and good fuel economy IIRC. 

[Raza]

That's no indictment of the concept though

But it may well speak to the limitations of the platform.