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SLP's 345 HP wonder

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Old Jan 28, 2004 | 06:33 PM
  #16  
codyman16's Avatar
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Originally posted by Antz97ZNJ
The SS is more of an apperance package...The ram air wont show up on a dyno/paper, and a higher flowing exhaust isnt a big power mod hence why most ss's dyno same as z's...Put it this way, taken same year/gear/option cars on average will run the same regardless of SS or base Z..ofcourse now all cars perform differantly
I wouldn't say that , i am pretty sure the 345 hp package would dyno higher on an average because of the largly improved exhuast and the improved airlid.
Old Jan 28, 2004 | 09:15 PM
  #17  
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Originally posted by Gold Z
There is no difference in the engines rated at 305 or 345. SLP simply added a lid and installed their dual dual cat back. If you add a lid and a decent catback system to the 305 hp rated car it will be "equal" to the 345 hp rated engine. Also, a lid and catback will not add 40 hp to a car. That number was just Chevy trying to sell more cars by playing the rating game. In the real world, with the same mods, there is no performance difference between a Z28 and a SS.
First off I swore I was done with these old Z VS SS
threads but I have something to add.

First only the 02 was rated at 345 with options.
A 02 Z28 was not rated at 305 so it isn't a claimed
gain of 40hp but 20 as the Z was 325, which is 5 higher
than my 99 SS was. Is there a difference with the options,
if you think no then why buy a lid or catback since they
don't add any gain given this stance.

ALL LS1 Fbody were underated especially at first.
SLP used an accurate number when it added
stuff-10 for each option which is what you can expect
with any aftermarket lid or catback.

Any camaro running 12's stock, including tires, is a freak.
GMHTP used Drag radials didn't they on that 35th.

If your buying a Fbody stickly on performance, buy the Z.
Any SS owner who tells you its a performance thing is a fool.
Anyone who doesn't like both models is a fool. I like the look
of the SS and its rarer. The point at the start of the thread about
resale isn't a lie. Run identical specs on kbb.com Z28 then add SS.
Your NOT pissing you're money away. I never plan of selling mine
so I bought the one I would be most happy with long term.
Old Jan 28, 2004 | 11:41 PM
  #18  
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Your post made me curious as I thought my 2002 Z28 was rated at 305 hp so I dug out the sales brochure and checked. We were both wrong. The Z28 was rated at 310 hp and the SS was rated at 325 hp before any SLP options.
Old Jan 29, 2004 | 12:11 AM
  #19  
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Originally posted by joecool72
Best I've heard on a stock LS1 Camaro was that article. If that's your time, that's a freak! Ever check to see if you have the Z06 block? Just curious to know the mileage on your Z when it did that, too. My 13.25 came just around 6000 miles so she hasn't even broken in yet.

Hey, I agree with you other guys that the best bang for the buck is a Z28 if all you want is to mod it out and enjoy it that way. I bought my '96 to do that. I've only planned to do minimal stuff to my SS.
Ive heard of LS1's getting in the 12.8 range stock right down to the tires and filter. MM&FF(ford magazine) actually got a 12.89 out of a stock LS1.

GM can put the 345 or 310 rating on the cars because truthfully both are making more than 345. It was just underrated to keep the vette owners from feeling stupid for paying twice as much for the same motor.
Old Jan 29, 2004 | 04:41 AM
  #20  
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Originally posted by Gold Z
Your post made me curious as I thought my 2002 Z28 was rated at 305 hp so I dug out the sales brochure and checked. We were both wrong. The Z28 was rated at 310 hp and the SS was rated at 325 hp before any SLP options.
That's right, I goofed
Old Jan 29, 2004 | 06:44 AM
  #21  
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The 335 and 345 HP SLP packages are jokes nothing better then the standard package for the SS or Z/28.

A friend of mine has a 02 Hawk w/ 345 HP package and with SLP Y-pipe he could only muster up a total of 297RWHP.

Now my little old 01 Z/28 w/ cutout dynoed at 307 RWHP so I really do not see where spending an extra 10k for a SS/Hawk (except for looks hood/spoiler) when the car is no better in performance then mine.

Then agan that is how I feel and another reason why I passed on a 02 Pewter 345HP SS and went with a 01 Z/28
Old Jan 29, 2004 | 07:24 AM
  #22  
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There is a very easy way to determine this.

If you are buying for pure performance, you want the Z28.

If you are buying for just as much performance, plus appearance, get the SS.

You can make a Z28 run faster than an SS cheaper than buying an SS. The options that make an SS what it is are MUCH more expensive than the same things that can be purchased aftermarket and are just as effective.

My SS dyno'd 331 ar the rear with the SLP lid, catback and a set of LT headers. Before the headers it did 318. This is on a Mustang dyno, not a Dynojet.

Yeah...that's nice and all, but my car also stickered for over $30k. You can find a nice Z28 and make it faster for the same amount or less.

Don't get me wrong, I still love my car!
Old Jan 29, 2004 | 07:53 AM
  #23  
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When you're talking stock for stock, the only REAL NOTICABLE differnce between the #'s those two cars are putting down at the track are going to be the difference in driver, plain and simple.
Old Jan 29, 2004 | 11:17 AM
  #24  
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People seem to forgot that not all LS1's
are going to dyno identical numbers.
01pewter if your friend only dyno'd 297 with
lid and exhuast he would have dyno'd lower
without, those are proven mods and thats all
they are its just his car came with them.
There are other factors at play too.
Did you both dyno on the same day at the
same dyno, maybe he needs a tune.
Old Jan 29, 2004 | 11:55 AM
  #25  
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If you want a car thats somewhat exotic, and has a long history get the SS. The camaro SS has been around since what 67? I love the looks, it doesnt look as plane jane as a z28. Plus an SS draws alot more attention. I like all cars though, transam , z28 SS, FIREHAWK, doesnt matter i think they are all great cars.
Old Jan 29, 2004 | 03:45 PM
  #26  
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Originally posted by codyman16
I wouldn't say that , i am pretty sure the 345 hp package would dyno higher on an average because of the largly improved exhuast and the improved airlid.
I would cause ive seen dyno's compared since 1998, they put down the same power..Why is it that so many SS guys upgrade there lid and exhaust
Old Jan 29, 2004 | 05:34 PM
  #27  
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Originally posted by Antz97ZNJ
I would cause ive seen dyno's compared since 1998, they put down the same power..Why is it that so many SS guys upgrade there lid and exhaust
thats cause the majority of them didn't came
with the options epecially a lid that was only available
late so saying so many 345 guys replace isn't really
true. I replaced both but my SS is a base model,
which carried the Hefty??? 3000 dollar premium,
not 10 like stated above. I could get most of it back
in a higher resale.

I comes down to what you want. A convertable Z28
would cost the same as a Ttops base SS. I don't
see all these posts on a regular basis of how
much a waste of money a vert is. If you like it and
that's what you want only you can decide if its
"worth" it.

We all pretty much agree a lid is a lid so how can
anyone say the SLP lid is a waste while any another
isn't. All exhausts dyno nearly the same, you buy
any particular one based on looks and sound,
why is the SLP D/D a waste while anyother isn't.
How could so many people with the same mod but
obtained after the fact say its a waste, simple logic
would conclude that so is yours then. Its contradictory
not to be.

When you say you could have saved the money and
bought mods and have a faster car what sense does
that make. An informed buyer didn't fork out the extra
cash for a faster model. But why stop there.
If you spent 20 with the intentions of putting the extra
5 or so that the SS was to mods, why not spend 10, buy
and LT1 and spend 15 on mods and be able to destroy
any stock LS1, if speed's your number one priority.
After you spend 5 grand on mods theres a good chance
you voided your warranty so the I wanted a "new" car
arguement doesn't hold up to me.

Buy the one that makes you happy and don't hate the
guy who did the same.

Last edited by locosteelersfan; Jan 29, 2004 at 05:37 PM.
Old Feb 1, 2004 | 11:58 AM
  #28  
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Originally posted by LT-14me
If you want a car thats somewhat exotic, and has a long history get the SS. The camaro SS has been around since what 67? I love the looks, it doesnt look as plane jane as a z28. Plus an SS draws alot more attention.


That is a great point... you look at a Z28, what diferentiates it between a POS 6 banger bottom model... a "Z28" sticker on the side... hood is flat, nothing fancy about it... you get the SS, you first off, get the looks, everyone knows about the SS... knows its an *** kicker, looks great, got the nice hood, the ground effects... etc... SS is an image... it says "fast as hell" far more than a Z28, even if its not that much faster...

and how often do most of us race these things? i would say the majority of us don't... we like to look fast, and when some ricer pulls up next to us with his baseball in the bike tire sounding exhaust, you like to step on it and smoke him... but most of the time, honestly, its the fact that your driving around in a fast car, and people know its fast as hell... and they don't want to step up.. the SS says that more than any other... camaro that is..

Last edited by sandmanusd; Feb 1, 2004 at 12:01 PM.
Old Feb 1, 2004 | 05:10 PM
  #29  
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From: GMHTP
Originally posted by locosteelersfan
GMHTP used Drag radials didn't they on that 35th.
No. The car did have the optional BFG tires, but they were not drag radials. The car was tested in totally stock form (which did not include SLP's lid) and ran a best of 13.57.
Old Feb 1, 2004 | 07:42 PM
  #30  
locosteelersfan's Avatar
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Which one went 12's and was did it have done
to it. I thought it was the 35th that Jim Mc.(is that you)
got but with a different driver.



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