New Track Times

[Greybeard ZR1]

Yup, weight is definitely a drawback with the Z. If your car weighed what a new C6 ZO6 did, you'd be very close to the tens right now.
As you probably know, Marc H. has a list of gimmicks to drop some weight on the Z. Have you done that stuff?
It would be fun to have a car like the old 2,900 lb. "Snakeskinner", and drop your 350 into it. A definite high 10 sec. car all day long.

I clipped off the mufflers, (same B&B setup you have), like Haibeck does, and gained trap speed , and cut E.T. on my stock motor car.

[jonszr1]

pete ,get ahold of corey ,he did his doctorate on putting a vaccume pump on a zr1. I read it its really informative. . pm me if you need his number

[Pete]

Originally Posted by Greybeard ZR1

Yup, weight is definitely a drawback with the Z. If your car weighed what a new C6 ZO6 did, you'd be very close to the tens right now.
As you probably know, Marc H. has a list of gimmicks to drop some weight on the Z. Have you done that stuff?
It would be fun to have a car like the old 2,900 lb. "Snakeskinner", and drop your 350 into it. A definite high 10 sec. car all day long.

I clipped off the mufflers, (same B&B setup you have), like Haibeck does, and gained trap speed , and cut E.T. on my stock motor car.

I have done Marc's weight reduction.

Do you remove the mufflers or do you have a cut out.
The reason i ask, you gain twice one for weight those B&B mufflers are heavy and second is flow.
I think my B&B mufflers flow pretty good,never tested,my system is all welded.
I will test a set of the newer B&B mufflers on the dyno soon.

Pete

[Greybeard ZR1]

Originally Posted by Pete

I have done Marc's weight reduction.

Do you remove the mufflers or do you have a cut out.
The reason i ask, you gain twice one for weight those B&B mufflers are heavy and second is flow.
I think my B&B mufflers flow pretty good,never tested,my system is all welded.
I will test a set of the newer B&B mufflers on the dyno soon.

Pete

I removed them. You're right, that SS is quite heavy. I pulled the pass. seat and the spare tire too. It allowed me to get my best ever time of 12.06@117mph.(1.76 -60ft.). Not too shabby for a stock motor 91'. This car used to embarrass C5 ZO6's all the time at my local strip. But I'd like to do the top end, like you have, and go hunting C6 ZO6's

Originally Posted by Greybeard ZR1

I removed them. You're right, that SS is quite heavy. I pulled the pass. seat and the spare tire too. It allowed me to get my best ever time of 12.06@117mph.(1.76 -60ft.). Not too shabby for a stock motor 91'. This car used to embarrass C5 ZO6's all the time at my local strip. But I'd like to do the top end, like you have, and go hunting C6 ZO6's

i said before month ago in CF , i post thread saying that ZR1 will embarrass 06z06, but all get angry and hate me .
i know what Zr1 and LT5 is capable of !
listen, why dont you try open headers and see the gain, and ET after that.
i want someone to do that and see what our Zr do in track!

[Pete]

Originally Posted by HADI-ZR1

i said before month ago in CF , i post thread saying that ZR1 will embarrass 06z06, but all get angry and hate me .
i know what Zr1 and LT5 is capable of !
listen, why dont you try open headers and see the gain, and ET after that.
i want someone to do that and see what our Zr do in track!

Hadi, i find it funny how some still think small ports,with exhaust backpressure will make more power. LMAO

I know a 350ci LT5 can make very streetable 500 RWHP.

Pete

[Greybeard ZR1]

Originally Posted by HADI-ZR1

i said before month ago in CF , i post thread saying that ZR1 will embarrass 06z06, but all get angry and hate me .
i know what Zr1 and LT5 is capable of !
listen, why dont you try open headers and see the gain, and ET after that.
i want someone to do that and see what our Zr do in track!

Actually, I have done that. After I ran the car with headers, no cats, 3" X pipe, and B&B 3" exhaust with no mufflers, I pulled the exhaust off and left open headers. The result, a reduction in trap speed, (therefore power).
I think it's because the ZR1 headers are relatively short, and also because I think the X pipe is really effective at increasing power.
The stock motor car seemed to run best with headers, no cats, X pipe and 3" exhaust pipes, no mufflers.
And a bonus, the sound was enough to scare the sh*t out of the guys I was running against.

[XfireZ51]

Originally Posted by Greybeard ZR1

...
And a bonus, the sound was enough to scare the sh*t out of the guys I was running against.

[Peaven]

Great job Pete, gives hope to all of us stock displacement guys.