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Old 09-30-2007   #21
jonszr1
 
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Default Re: New Track Times

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
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Old 09-30-2007   #22
A26B
 
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Default Re: New Track Times

Great work & driving Pete. Absolutely awesome times for a 350!!
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Old 09-30-2007   #23
Pete
 
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Default Re: New Track Times

Quote:
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
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'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage
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Old 09-30-2007   #24
Pete
 
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Default Re: New Track Times

Quote:
Originally Posted by A26B
Great work & driving Pete. Absolutely awesome times for a 350!!

Thanks Jerry
All i need now is 4-5lbs of boost.
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'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage
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Old 09-30-2007   #25
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Default Re: New Track Times

Those are great runs Pete. Your 350 is one stout LT5.

Did you do a dyno test on what you gain from the water pump and/or the UD pulleys?
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Old 09-30-2007   #26
HIZNHRZ
 
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Default Re: New Track Times

Pete,

I know you did a lot of work optimizing overall performance using stock cams. Would you mind sharing what your torque curve looks like with the setup you are running now?

Thanks.
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Old 09-30-2007   #27
RiceEatingZR1
 
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Default Re: New Track Times

Quote:
Originally Posted by XfireZ51
Shaun,

You coming on the 20th?
Yes I plan on it as long as nothing happens from now to then. I will be there, my friend with his 02 TT LPE will be there as well. =D>
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Old 10-01-2007   #28
Pete
 
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Default Re: New Track Times

Quote:
Originally Posted by A1990
Those are great runs Pete. Your 350 is one stout LT5.

Did you do a dyno test on what you gain from the water pump and/or the UD pulleys?
I did do a before and after with the electric water pump i gain no RWHP from what the dyno showed me.

I never really did a before and after on the UD pullies but i'm sure they help some and i also prefer the rotating wieght savings, they are half the wieght of the stock steel pieces.

Pete
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'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage
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Old 10-01-2007   #29
Pete
 
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Default Re: New Track Times

Quote:
Originally Posted by HIZNHRZ
Pete,

I know you did a lot of work optimizing overall performance using stock cams. Would you mind sharing what your torque curve looks like with the setup you are running now?

Thanks.
I'm still trying to optimize.

I don't have a scanner to scan my dyno sheet.
But right now at 3k rpm i make 332 RWTQ lost some over the stock cams,
stock cams it was 345RWTQ @ 3k rpm now i don't know if the BFG DR's rob some power over the GSC's.
If not i wanna try different cam timing with the bigger Intake cams,something i will do over the winter months.

Pete
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'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage
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Old 10-01-2007   #30
Greybeard ZR1
 
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Default Re: New Track Times

Quote:
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
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