Z28 weight

[boxmonkeyracing]

Originally Posted by HaVoKZ06

The SS and ZL1 will always be the top GM camaro's Z28 was always lower and will always be lower then the SS. That is why CHEVY uses SS on all its high end vehicles Ex. Cobalt SS, Trail Blazer SS, Impala SS, and many more SS models

really it depends on how you define lower performance. because the 1st gen Z28 was the all around performer while the SS was a straight line queen. so if you only talk about the 1320 then you might be right. but for us that like to go to the mountains and have fun. . .you are sadly mistaken.

[nak3dsnake]

Originally Posted by HaVoKZ06

The SS and ZL1 will always be the top GM camaro's Z28 was always lower and will always be lower then the SS. That is why CHEVY uses SS on all its high end vehicles Ex. Cobalt SS, Trail Blazer SS, Impala SS, and many more SS models

The SS was more of a strait line car, where the z28 was the street legal track car. I'll take a car that corners better over one that can pedal fast in a straight line.

[Fightinfire921]

Originally Posted by HaVoKZ06

The SS and ZL1 will always be the top GM camaro's Z28 was always lower and will always be lower then the SS. That is why CHEVY uses SS on all its high end vehicles Ex. Cobalt SS, Trail Blazer SS, Impala SS, and many more SS models

What?? You're right a SS emblem can be stuck on anything; cars, trucks, boats, trains, and planes.

Now a Z/28 emblem, do you need a hint?

SS, Z/28, and then the ZL1.

Originally Posted by DGthe3

I disagree. I'd say that GM considers the Z28 to be superior to the Camaro SS. They used 'SS' on their mainstream, every day V8 powered Camaro for the 5th gen. Thats fine, but what the move also says is that they don't consider 'Z28' to be a mainstream, everyday V8 Camaro.

Don't believe it!!

[2cnd chance]

Originally Posted by HaVoKZ06

The SS and ZL1 will always be the top GM camaro's Z28 was always lower and will always be lower then the SS. That is why CHEVY uses SS on all its high end vehicles Ex. Cobalt SS, Trail Blazer SS, Impala SS, and many more SS models

Uuuuuuuuuuuuuhhhhhhhhhh, No.
I wouldn't consider some of those vehicles as high end Chevys. A side note, I believe the Z28 was close in 1/4 mile performance to the SS396 in 1969. Yet handling was not even close.

[flopjack]

Originally Posted by WYKOFF69Z

[/COLOR]



Don't believe it!!

I think i remember reading somewhere that the 1st Gen Z/28 was underrated, just like the ZL1. ZL1 was rated for 425 hp, but actual output was closer to 560. Z/28 had actual output around 400, which is more than many of the SS models of the time. Whether those also were underrated, I do not know.

[LOWDOWN]

NHRA had a "factoring" formula in effect for Stock-SuperStock classes, back in the day. IIRC, 302-290 hp was factored to about 350...and of course that's GROSS as opposed to the NET rating (accessories/exhaust present) used from '71-on (generally) by GM/others.

Ratings were all over the map, back then. Some struggled to meet theirs ("marketing"), while some were for "insurance purposes" and therefore "undervalued". And sometimes, the "rating" was taken at an rpm well below "max" i.e. L88/ZL1, both "rated" 430 (to avoid those folks who wanted "the most" from selecting what was essentially a race-only engine), below the L71's 435 rating.

[2cnd chance]

I remember 350 as well for the 302 from a number of sources through the years that I can't provide.

[wildpaws]

Originally Posted by flopjack

I think i remember reading somewhere that the 1st Gen Z/28 was underrated, just like the ZL1. ZL1 was rated for 425 hp, but actual output was closer to 560. Z/28 had actual output around 400, which is more than many of the SS models of the time. Whether those also were underrated, I do not know.

First gen. Z/28s ran better than SS396 325HP and 396/350HP, and almost as well as the SS396/375HP in the quarter mile, none of the SS models in stock configuration kept up with a Z/28 stock configuration in the twisties. Quarter mile numbers seem to reflect those HP numbers with apparent HP of the first gen. Z/28 appearing to be between 360-375HP in stock single four barrel configuration.
Clyde

[flopjack]

Originally Posted by wildpaws

First gen. Z/28s ran better than SS396 325HP and 396/350HP, and almost as well as the SS396/375HP in the quarter mile, none of the SS models in stock configuration kept up with a Z/28 stock configuration in the twisties. Quarter mile numbers seem to reflect those HP numbers with apparent HP of the first gen. Z/28 appearing to be between 360-375HP in stock single four barrel configuration.
Clyde

Thanks for that! Very interesting information!

[LOWDOWN]

Originally Posted by wildpaws

First gen. Z/28s ran better than SS396 325HP and 396/350HP, and almost as well as the SS396/375HP in the quarter mile, none of the SS models in stock configuration kept up with a Z/28 stock configuration in the twisties. Quarter mile numbers seem to reflect those HP numbers with apparent HP of the first gen. Z/28 appearing to be between 360-375HP in stock single four barrel configuration.
Clyde

The limiting factors, back in the day, were tires and gription. And the more torque a car made, the less capable the OEM tires were of harnessing that power. Nose-heavy cars like 396 Camaros were additionally hobbled by disadvantageous weight distribution and, therefore, less rearend traction.

A "showroom floor" 302 Z/28 generally was capable of mid-upper 14s (eerily similar to today's LLT), and juice-cam'd '96s were variously similar. An L78, well-tuned and -driven, would break into the 13s...just. Again, showroom-stock/untouched.

Hot Rod Magazine did a Project build-up of a 302 Z, with a balanced/blueprinted engine, headers, 4.88s, Stock-legal 7" slicks, and some other NHRA-legal things. Final result, as I recall, was 12.70s...stout in its day, but about 3/10s over the record for F/Stock. And Dave Strickler, a disciple of and "partner" to Bill "Grumpy" Jenkins, ran high-11s in his Super Stock version: any cam, 10" slicks, any single-4 under-hood intake etc.

[coolman]

I couldn't bring myself to get past the first post. So when did the Z28 come to life. Was I on another planet for the last year or something.

[Black5thgen]

I could see a modest weight loss but the advantage of the Z28 will be mostly suspension and power train. If the Z28 does come out I would guess it would be much more limited than the ZL1 and with not many options. Maybe color and RS.

[Fightinfire921]

Originally Posted by coolman

I couldn't bring myself to get past the first post. So when did the Z28 come to life. Was I on another planet for the last year or something.

Yep!

Start with post #1.

[Revo1]

Z28? Weighin very little right now... :/