FastMatt2

If you look on the CTS-v and ZL1 forums they are covered with 700+ rwhp LSA's with heads/cam/headers/pulleys/tune (even with autos). You almost never see ZR1's on here making over 700. Why is that?

And LSA guys on top of that seem to have no problem throwing NOS on there cars and making 850+ rwhp on stock bottom ends. Again something you almost never see on a ZR1 despite the LS9 being a stronger motor.

whatcop?

Because everyone is scared to hurt their car over here and we have a weak aftermarket area.

gkzr1

Agreed, me and whatcop have talked about this on the phone multiple times, zl1 air intakes are larger and heat exchangers are MASSIVE just to start.

whatcop?

That heat exchanger off the ZL1 is really pissing you off loooool

gkzr1

K B Vettin

i have ported heads, a blower cam, smaller pulleys, injectors, headers, tune, CAI, ported snout and i'm right at 700 whp. it seems like i know of a lot zr1's that are in the same boat or headed in that direction.

titletaker

I think its a matter of simple economics with a hint of demographics. You're starting with a 35,000-45,000 car and the mods are less money than mods for a ZR1(the lovely Corvette Tax).
With a ZR1, most have spent 100k on their car. While most ZR1 owners can most likely afford the mods, they are happy with the stock power and piece of mind of having a warranty; while the other car owners are chasing the holy grail so to speak(ZR1=King of the Hill)

Gary '09 C6

^ economics and usage. Those regularly tracking their ZR1s may be pre-disposed to, or more desirous of, adding mods.

whatcop?

I just wanna go fast......shake and bake.....yeah that just happened.

grandsport4me1963

It's all about preservation of the expensive ZR1.

4evervette

I think the question is how FAST you want to be ... a 600rwhp zr1 equal or outrun 700rwhp ctsv or zl1( not exact measure but u see my point ) zr1 lighter don't need much modding .... So that's why some people are satisfy with the performance or the car ..

timmyZ06

This ^
Beside extended warranty is a great mod for those who simply dont have time to bother, only driving the thing!

GOLD72

They are all striving to be LS9s??????????

hcvone

Just a lot of performance for 65k, my vcoupe is no ZR1, but add a few dollars in mods and it allows you to play with them at half the price

chuntington101

Get the that german guy to take molds of his ZR1 front bumber with the twin HE's in, and then use them in conjunction with a larger HE in the normal location. Job done!

Alternative someone needs to develop a rear mounted unit with ducted air to / from it!

Chris.

jft69z

I got my V-coupe first, & it's fun...but..... the ZR1 is a LOT more fun!! Warranty preservation & time is a big factor right right now like 'TimmyZ06' mentioned, but in the future I can see the possibility of a Katech Stage 4 or LPE mods to the ZR1. I wouldn't even consider putting that money into the V, what's the point. I grab the ZR1 keys a whole lot more than the V, it's than much more fun to drive.

JMBLOWNWS6

LOL We have pushed the LS9's. Videos and threads are coming. They are bad to the bone!

venomws7

We're at 870rwhp on bone stock short block LS9 and we're taking it to 950+rwhp soon.

LS9 is a tough SOB

QUIKAG

I have a '12 CTS-V and a '10 ZR1, so I have both an LSA and LS9. Both are awesome cars/engines. I ran an approximately 750rwhp highly modded six-speed manual CTS-V sedan and he pulled my bone stock ZR1 about 1.5 cars to 140mph from a 60 punch. So, it takes A LOT more power on a V to equal the stock acceleration of a ZR1. Combination of weight, gearing, etc.

I have an Airaid on the V and my ZR is bone stock. I keep the ZR bone stock because I track it and the cooling capability is marginal as it is with how hard I run it, so adding horsepower without adding cooling wouldn't help much for me. Then, the warranty is out the door which I want to keep.

musclecar6

The ZR1 has a huge weight advantage over the ZL1 & CTS-V, hence they need to really boost the power to get ZR1 performance or better.