c7 vs. supercharged 86

[Hades]

Originally Posted by JustSomeGuy

just get a viper acr and call it a day lol

Feel free to send me the difference

[Summerwolf]

Originally Posted by Jaden

While they did redesign much of the engine in order to do those things I mentioned, and there's not really much carry over aside from some bolts and such, if it wasn't basically still the same platform they wouldn't be able to retrofit LT1 heads on LS blocks... and they HAVE...

It takes a whole new fuel system and what not, the headers are different etc, but what I said is basically true. It's a VVTI, DI LS...(which makes it a different engine while retaining a lot of what makes an ls an ls...) I'm not going to get into the weeds on this distinction.

It's kind of like the difference between a ford 302 from 69 and a 5.0 from 95...still basically the same platform just changed for FI, etc...

Jaden

There are similarities, it is an evolution of a great design. It was significant enough to change the nomenclature, meaning it is not "just" another ls motor. Semantics, I guess.

[Hades]

Yea, I mean it uses the same pushrod design, but uses new technology (DI, VVT). If it ain't broke don't fix it.

[venturaII]

It's a Gen 5 LS motor, plain and simple. It has the same basic design as the Gen 3 and 4 LS motors, and offers the same interchangeability of main components while incorporating some new features to extend the life of the engine family. Variable can timing was introduced in the Gen 4 motors, so nothing new there. DI is the most significant change. It's a great motor, as all LS-based motors are, but there's nothing fundamentally new here, despite a different (and reused for the third time in Chevy small block history...) engine code to distinguish them from the earlier versions. LH4, LC9, LMG, LY5, L77, L86, LT1 etc. are all used to describe various flavors of the LS engine family, so the absence of 'LS' in the engine code is meaningless.

[jflogerzi]

I would take the C7 any day over a modded twin. The twins are great for what they are and price point. But if you are looking at twins+mods go used and save a bunch of money. Clean examples of twins can be had for cheap. Thats my 2 cents

[gtpvette]

Well,,, I've put 56K miles on my stock 86,, and 32K miles on my C7. Funny about the two,, for as much alike as they are also way different.


The 86 is more old school sports car,, it's about half the price of a C7 and has fewer bells and whistles. I love the way it drives but it has no real power. I bought it as a commuter car but really fell in love with it. Frankly if you wanted an 86 DD/track car,, buy a clean used one with some mods (coils, wider rims) then swap in a motor (my choice a 325HP V6). For less than $30K you'd be set to go and have $10K+ left over for consumables. As a sidebar, once my swap is done it goes back to being my DD and in 3 years becomes my track rat.


As for the C7,, it's without a doubt the best car I've ever owned and this is my 6th Corvette. Amazing power, great driver, 7 speed manual, rev matching on down shifts, dry sump I could go on and on. Right out of the box it's a DD/track car. Pricy though,, I paid $49K which was 20% off MSRP so I got a deal. This car costs twice what an 86 would.


If I were you??? Buy the lowest mileage C5 or C6 (newer is better) you can find for $25K. They are around,,, look for one some middle age guy has and polishes it every week. You get the price point of an 86 with the benefits of a Corvette. Truly the best of both worlds.

[TommyW]

The first question would be how much track time do you have and how much instruction. If these numbers are fairly low I'd stick with an 86 on stock tires. If you can properly rotate a car with trail braking and are comfortable with slip angles on fast corners then and only then would I venture into a higher horsepower car or even an 86 with sticky tires.

[Jaden]

Originally Posted by Hades

Yea, I mean it uses the same pushrod design, but uses new technology (DI, VVT). If it ain't broke don't fix it.

Same thing with the FA20a and FA20b, does that mean they aren't FA20's anymore?


I mean literally the exact same differences between the FA's is the same differences between the LT1 and the LSX... Different fueling systems, different cranks, rods and pistons, different heads.


Jaden

[Summerwolf]

Originally Posted by Jaden

Same thing with the FA20a and FA20b, does that mean they aren't FA20's anymore?


I mean literally the exact same differences between the FA's is the same differences between the LT1 and the LSX... Different fueling systems, different cranks, rods and pistons, different heads.


Jaden

Block, engine mounts, oiling system.... etc etc.

[DandoX]

If I could afford a C7, I would get that in red. Such a cool ass car.

86 is amazing and great if money is an object. If you are rolling with 40k to burn, get the C7

[Jaden]

Originally Posted by Summerwolf

Block, engine mounts, oiling system.... etc etc.

LS based GM small-block engine
Overview
Manufacturer General Motors
Production 1996–present
Layout
Configuration OHV V8
Chronology
Predecessor
Chevrolet Small-Block engine
Northstar engine
The LS based GM small-block engine is the primary V-8 used in General Motors' line of rear-wheel-drive cars and trucks. Introduced in January 1995, it is a "clean sheet" design with only rod bearings, lifters, and bore spacing in common with the longstanding Chevrolet small block V8 that preceded it as the basis for GM small-block V8s. The basic LS variations use cast iron blocks, while performance editions are all aluminium with cast iron cylinder liners.

The LS small-block has been manufactured in three Generations – III, IV, and V – with preceding Generations I and II of modular GM small-block engines having been based on the Chevrolet small-block V8 originally designed in 1955. GM recycled the "LT" designation beginning with the LS Generation V "LT1" in 2014.

Several versions of the LS were used in the Chevrolet Corvette, beginning with the LS1 in 1997 through the LS9 and others in 2013. Variants of the LT version of the GM small-block have been used since.

Jaden

[Summerwolf]

Originally Posted by Jaden

LS based GM small-block engine
Overview
Manufacturer General Motors
Production 1996–present
Layout
Configuration OHV V8
Chronology
Predecessor
Chevrolet Small-Block engine
Northstar engine
The LS based GM small-block engine is the primary V-8 used in General Motors' line of rear-wheel-drive cars and trucks. Introduced in January 1995, it is a "clean sheet" design with only rod bearings, lifters, and bore spacing in common with the longstanding Chevrolet small block V8 that preceded it as the basis for GM small-block V8s. The basic LS variations use cast iron blocks, while performance editions are all aluminium with cast iron cylinder liners.

The LS small-block has been manufactured in three Generations – III, IV, and V – with preceding Generations I and II of modular GM small-block engines having been based on the Chevrolet small-block V8 originally designed in 1955. GM recycled the "LT" designation beginning with the LS Generation V "LT1" in 2014.

Several versions of the LS were used in the Chevrolet Corvette, beginning with the LS1 in 1997 through the LS9 and others in 2013. Variants of the LT version of the GM small-block have been used since.

Jaden

Lots of differences. It's an evolution of a design. To me it's an important designation as motor mount placement is different, exhaust manifolds are different. Lots of little things. Things that work easily with a typical "ls" swap dont necessarily work the same way with an "lt" swap.

I would go out on a limb and say it's harder to swap an lt1 in to an ls1 equipped car than say an ls2, or ls3. People run in to issues with those almost direct swaps constantly.... it's interesting to follow some of the builds on ls1tech.

Once the ltx engines start coming down in price you'll see people figuring it out more and more.

[rx3]

Racing tires are costlier and don't fit inside a C7 and it doesn't have 4 seats (plays a role in some racing classes).

[gtpvette]

https://www.corvetteforum.com/forums...29k-miles.html