skittlenips

They were made later, shouldn't they be the faster car? Genuine curious, thanks!

bb62

You are not specific as to the engine in question, but the same answer could be used for both the LT1 or the LT5. You are comparing tests in potentially different conditions with different drivers. Line the three up with the same driver on the same day on one track and you would likely find identical results for all three

Tom400CFI

The cars got heavier withy each year's changes. That is the only diff, and it's a slight one. I'd say bb62 is right; conditions and driver have a bigger impact on the variations that you're asking about.

JimLentz

Did they all have the same transmission and rear axle ratio?

Tom400CFI

All the stick shift, LT1 cars do, and all the stick shift, LT5 cars do.

Auto LT1's could have had a couple different rear ratios.

Renfield

By that logic, the '76 should make short work of a '69.

zr1fred

The 94-95 cars had sequential FI, and greater engine management, and slightly more weight. BB62 pretty much nailed it though, unless you side by side them there is no way of telling. For years, European manufacturers would bring race prepared cars and professional drivers on favorable tracks to "test" their cars, and usually came up with fantastic numbers in the car magazines. In the 90's Ford did it with their Mustang Cobras and ended up getting sued by the Cobra owners who were getting creamed by LT1 Camaros with less horsepower.

B17Crew

I remember that!

B17Crew

dizwiz24

ive got to assume its either:

1. increased weight with additional features (ex. passenger side airbag was added in 94
2. less options on the 93 (ex. no power seat, bose, etc) vs a fully loaded 94/95 car (and-or driver / fuel loading)
3. different weather conditions.

Crossed Flags Fan

All the above plus different tracks, locations (how far above/below sea level), whose doing the testing (magazine? track slips/bragging rights?), tires, transmissions, options, driver expertise, etc. Unless the all the conditions are identical, or a mathematical formula is used to account for the weather, etc. you really can't compare the numbers.
Just sayin.

mike100

It does beg the question on if the batch fire speed density early LT1's 300 hp was fatter across the rpm range than the 94-96 LT1 with the mass air flow sequential injection. Seem like GM was always rating the torque a little different each year.

Tom400CFI

The tq rating changed (for the better) as time went on due to cam changes -mostly. '92 had the lowest peak tq rating.

5abivt

SO many variables. Weather conditions, altitude.. track conditions, driver.... etc etc...