Hello:

Please bear with me as I suspect that this issue has been hashed and re-hashed before on this forum (though I couldn't find it).

This questions pertains to 2001 and 2002 Camaro SSs only.

Here's what I think I know:

1) All 2001 and 2002 SSs were equipped with SLP options which, at a minimum, boosted the LS-1's horsepower from 310hp (base z/28) to 325hp.
2) An additional SLP option known as "dual/dual" was available in 2001 (and perhaps earlier but I'm just interested in 2001 and 2002) which boosted the LS-1's horsepower to 335hp from 325hp. This option was characterised by twin tipped dual exhaust.
3) Midway, or so, through the 2001 model year the central mounted exhaust option also became available (according to a forum member) which, like the "dual/dual" option, also boosted horsepower from 325 to 335.
4) Both of these exhaust options were carried over into 2002. (This I know from the 2002 Camaro broucher which specifically mentions the two exhaust options and 335hp).

What I don't know is when and how (if at all) an SLP option came along that boosted horsepower to 345.

As I understand it, the extra 10 horses were the result of an additional factory SLP mod to the induction system (scoop and/or filter --blackwing?) but I'm not certain.

Finally, I don't know the role (if there is a role) of "cat back" exhaust in the factory sanctioned SLP mods in 2001 and 2002.

I'm sorry to be so long winded but I have been unable to get any definitive information on these questions.

Thanks in advance for any light that you can shed on these questions.

Sincerely,

Rathmullan

 

I know its not the answer you were looking for but to be honest there were slight changes throught the year anyway, 99 upto 2000+ had different pcm settings, ls6 intake, smaller cam duration and had about the same power (base z28). However the SLP had better intake lid and filter and a cat back exhaust to have dual exits or centre exit as you say.

There 'may' have been a mod to get 345 hp with a tune or something but im not sure. Are you interested in buying a particular car? or have one?

Its really irrelavant what power they 'said' the cars made, i dont know if its tested or not and that the parts were just marketed as such. For the money to get an slp you can easily mod a z28. I have slp intake, K&N filter, 3.23 axle from ws6 TA and full LT headers, de cat and true duals and put down 326 hp at wheels on abolt on hub dyno, which is way above 345 at the fly (assuming dyno is correct).

Engine power can vary greatly anyways, so what it says on the box isn't always true.

 

Hello:

I think the following is accurate. It's amazing how a definitive answer can't be found on the internet.

The 15hp gain for the SS over the Z28 results from the factory hood scoop. (BTW, I've seen some Z28 enthusiasts bragging about how the Zs and the SSs dyno the same implying that the SS package is a waste of money. Excuse me, but if the car is stationary, how can the benefits of forced air induction be realized?

Both the optional SLP twin tail pipe and center mounted pipes (cme) are good for an additional 10 hp, taking the SS to 335hp. Finally, the SLP "Blackwing" air induction option, which may have only been available when combined with the with the SLP cme option (not sure about this) produced another 10 hp to take the SS to 345 hp.

Have a Happy Thanksgiving!

Rathmullan

 

The 98 WS6 I'm buying put 324 to the ground... The were rated at 320 in 98 at the crank I think for the WS6? The 01-02 SLP SSs will all make around the same RWHP which is what really matters. They normally dyno at around 315

There is no definitive answer because there's no real difference. They underrated the numbers in 98 and only beefed them up through the next few years.

And the benefits of the ram air are nonexistant. The high pressure air hits the nose and doesn't touch the car again until it hits the windshield, rendering the ram air scoop USELESS.

The 15 HP "gain" in the SS is simply SLPs air lid blown out of proportion.

Get them on a dyno, they all make around the same power with the SS making around 5 HP more to the ground.

 

factory to factory the ss will make anywhere from 10 - 15 more hp than a z of the same year, only because of the slp filter and the exhaust options....

However im concerned that youre focusing on the difference of 325-345 hp? at most thats 20 hp.... you wont feel it and the most youll see from it is maybe a 100th ish? in a 1/4mi sooo really this is completely irrelivent, i had an ss, i bought it for the appearance mods and the nostalgia of owning an ss camaro, not the 10 hp gain

 

That's why I'm buying the WS6. Because of the looks and the fact I'll own a WS6.

 

and thats all there really is to it, people get caught up in this ss z28 thing all the time and its rediculous, i had all kinds of troubles at school or anywhere with people telling me my car was a fake, and i could never afford it on my own, and then they get in a z28.... WTF its the same thing with a diff hood, spoiler, wheels, and SOMETIMES rear gear, SAME CAR! i hate people =]

 

Evilkil:

Dang! That is a very compelling argument. I'm going to call SLP on that. Maybe there's "no air up there".

But what about this so called "cold air" induction option offered by SLP on the scooped Camaro?

Regards,

Rath

 

SLP already knows it. That's why the SS hood isn't functional :P My WS6 hood isn't technically ram air but it does flow cool air right to the front of my intake air box. The CAI option is their intake lid with a smooth bellows to allow better air flow. Definitely a worthy mod.

As far as the SS scoop. Look at water drops on your hood when you are driving compared to the ones on your windshield. Notice the water on the hood hardly moves?

No high pressure there The center exit exhaust gives the extra 10 hp versus the 335 of plain SS cars.

And DK, when I dyno'd my V6, there was a 100% stock 02 Z28 that dyno'd 318 RWHP that when two pulls ahead of me. Stock air lid and all lol.

It's all up in the air.