10-22-2018 | #71 | |
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,675
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Re: Building a beast...doing a 391
Quote:
We still have to do some fine tuning, driveability is tuned with no issues. This 391 motor project took 3 months to complete. Other repairs and issues took an extra 4 weeks diagnosing and waiting for parts. Ted you and i both know builds like these used to take 1-2 years. Evan was great to work with very patient. Thanks 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 Last edited by Pete; 10-22-2018 at 11:40 PM. |
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10-23-2018 | #72 |
Join Date: Nov 2010
Location: Omaha
Posts: 403
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Re: Building a beast...doing a 391
Thanks Pete, I have to say again, I'm really, really happy with Pete and the way the car turned out. Not only did he do a great engine build, but we addressed a lot of other minor issues the car had. EVERYONE at the Mile event was blown away with how fast the car is, and that it was reliable enough to drive it home from Chicago to Dallas, and then a week later beat on it at the Mile. For anyone that's been thinking about doing a 391 build from Pete, DO IT! Just be patient and let Pete do it right, don't rush it.
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Evan
2024 Z06 SOLD - 1991 Admiral Blue ZR-1 SOLD - 2012 Carlisle Blue Metallic ZR1 - 800HP SOLD - Steel Blue 91 391cid ZR-1 #391 SOLD - Black 91 ZR-1 |
10-23-2018 | #73 | |
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,675
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Re: Building a beast...doing a 391
Thanks Evan
Enjoy and be safe. Pete Quote:
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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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04-20-2019 | #74 |
Join Date: Nov 2010
Location: Omaha
Posts: 403
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Re: Building a beast...doing a 391
So it's been a while since I posted on this, but figured I'd give an update. Was at a dyno day today, and got a couple of runs in. No wideband, so I still need to do another run somewhere with that so we can finalize the tune. As is, it's running very rich with conservative timing, but numbers were 494HP & 442TQ. Pete thinks there's probably another 20HP in it with proper tuning.
Here's a video of the pull: https://youtu.be/qetbIsUYHR0
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Evan
2024 Z06 SOLD - 1991 Admiral Blue ZR-1 SOLD - 2012 Carlisle Blue Metallic ZR1 - 800HP SOLD - Steel Blue 91 391cid ZR-1 #391 SOLD - Black 91 ZR-1 |
04-20-2019 | #75 |
Join Date: May 2018
Location: VA
Posts: 204
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Re: Building a beast...doing a 391
Great sound and looks with numbers to back it up!
Thanks for posting. |
04-22-2019 | #76 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,706
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Re: Building a beast...doing a 391
Quote:
If u didn’t have a WB O2 on it, how do u know how rich it was running?
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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04-22-2019 | #77 |
Join Date: Nov 2010
Location: Omaha
Posts: 403
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Re: Building a beast...doing a 391
One, because Pete tuned it to be rich (safe). Two, you could see it/smell it. When you've been around as many dyno runs as I have, it's pretty obvious.
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Evan
2024 Z06 SOLD - 1991 Admiral Blue ZR-1 SOLD - 2012 Carlisle Blue Metallic ZR1 - 800HP SOLD - Steel Blue 91 391cid ZR-1 #391 SOLD - Black 91 ZR-1 |
04-23-2019 | #78 |
Join Date: Jun 2018
Location: Elko mn
Posts: 49
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Re: Building a beast...doing a 391
I really want to do this.
Do they still pay good money for a kidney? Maybe half a liver? |
04-23-2019 | #79 |
Join Date: Nov 2010
Location: Omaha
Posts: 403
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Re: Building a beast...doing a 391
It's a great setup, I really love it. It's a perfect blend of streetable power, that sounds mean while being very drivable. I'd strongly encourage anyone that's considering an engine upgrade to do it.
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Evan
2024 Z06 SOLD - 1991 Admiral Blue ZR-1 SOLD - 2012 Carlisle Blue Metallic ZR1 - 800HP SOLD - Steel Blue 91 391cid ZR-1 #391 SOLD - Black 91 ZR-1 |
04-23-2019 | #80 |
Join Date: Jan 2015
Location: Decatur, AL
Posts: 93
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Re: Building a beast...doing a 391
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1990 ZR1, 1987 Mustang GT (since new), 1973 DeTomaso Pantera, 1987 928S4 Passed on: 1984 930S (gray market), 1988 Mustang Coupe Trooper car(drag) |
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