01-29-2012 | #1 |
Join Date: Apr 2009
Location: Prather, CA
Posts: 809
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LT5 with velocity stacks spun to 9200 RPM!
Just came across this video of an LT5 with velocity stacks on an engine dyno that the poster says was spun to 9200 RPM. Maybe you guys have seen it, but I thought I'd post it anyway. Here is the info on the engine that is in the description:
"LT5 C4 ZR1 engine spun up to 9200rpm. Engine was built by Bonefied Customs and runs Bigstuff3 as the management system. Made 550hp and 450ftlbs at 8500rpm. Engine was destroked to a 5.0L to run at the Bonneville salt flats in the D/GT class. Enjoy!" Why did they need to destroke it to run at Bonneville? And I thought the timing chains couldn't handle RPMs much past 8K? Wow, what a sound! Crank up the volume... http://www.youtube.com/watch?v=x2T3A...eature=related
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[IMG]http://i13.photobucket.com/albums/a292/bdw18_123/_zr1netforumsigphoto.jpg[/IMG][B] 1990 Corvette ZR-1 [/B][I] White/Flame Red, #2299, mostly stock, 144K miles.[/I] -Cams timed to the '93-'95 405HP LT5 stock timing. -IAT sensor relocated to below front bumper. -Haibeck hoops installed in airduct. -OBX cat-back exhaust. [COLOR=DarkRed][B](SOLD - December 2012 [/B][/COLOR][COLOR=DarkRed][B]:hello:)[/B][/COLOR] 1993 Corvette Coupe Black/Black, 6-speed (SOLD - October 2009 :hello:) |
01-29-2012 | #2 |
Join Date: Jan 2007
Location: Pineville, LA
Posts: 586
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Re: LT5 with velocity stacks spun to 9200 RPM!
Isn't that the one Lee posted a while back?
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01-30-2012 | #3 |
Join Date: Jul 2005
Location: Cresson, TX
Posts: 970
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Re: LT5 with velocity stacks spun to 9200 RPM!
Did you notice the lack of an oil pan... must be a dry sump...
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01-30-2012 | #4 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: LT5 with velocity stacks spun to 9200 RPM!
Ron,
Note post #7 same comment...this engine I believe was built by Rippie as was the stand alone ECM.....Rippie had a dry sump setup on some of his LT-5 race car and that makes sense that this does not either. The LT-5 inability to run over 8K was related to oiling on the lower end....when the car would hit 8K, pressure was pushing the oil to the top 1/2 of the motor, resulting in failure...the weakness was not a chain issue. I tried calling these folks awhile back and no one picked up....also tried conecting with them on FB. http://www.zr1.net/forum/showthread.php?t=15864
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
01-30-2012 | #5 |
Join Date: Apr 2009
Location: Prather, CA
Posts: 809
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Re: LT5 with velocity stacks spun to 9200 RPM!
Oops, forgot that Lee posted that, sorry for posting it again guys.
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[IMG]http://i13.photobucket.com/albums/a292/bdw18_123/_zr1netforumsigphoto.jpg[/IMG][B] 1990 Corvette ZR-1 [/B][I] White/Flame Red, #2299, mostly stock, 144K miles.[/I] -Cams timed to the '93-'95 405HP LT5 stock timing. -IAT sensor relocated to below front bumper. -Haibeck hoops installed in airduct. -OBX cat-back exhaust. [COLOR=DarkRed][B](SOLD - December 2012 [/B][/COLOR][COLOR=DarkRed][B]:hello:)[/B][/COLOR] 1993 Corvette Coupe Black/Black, 6-speed (SOLD - October 2009 :hello:) |
01-30-2012 | #6 |
Join Date: Jun 2005
Location: CenCoast California
Posts: 899
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Re: LT5 with velocity stacks spun to 9200 RPM!
What are they using for cam chains and sprockets?
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Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878 |
01-30-2012 | #7 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: LT5 with velocity stacks spun to 9200 RPM!
I assume stock
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
02-01-2012 | #8 |
Join Date: May 2009
Location: S Nevada
Posts: 352
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Re: LT5 with velocity stacks spun to 9200 RPM!
wow
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1995 Convertible Supercharged Auto 1974 454 550hp (avatar car) On the blocks- -Scharger install ! 1992-Zr-1 Sold. Watson Headers Ported Plenum, Housings Random tech cats Fidanza Flywheel Chipped, Relocated Mat Woods 165 stat Borlas, Straights 1996 Lt4 Sold 1994 Lt1 Sold 2004 Z06 Sold AKA** Illenema |
02-02-2012 | #9 |
Join Date: Nov 2008
Location: Grand Rapids, MI
Posts: 384
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Re: LT5 with velocity stacks spun to 9200 RPM!
I've driven by this place a couple times and have never seen anyone there. No signs are on the building either. Does anyone know the driver of the car at Bonneville?
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02-02-2012 | #10 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: LT5 with velocity stacks spun to 9200 RPM!
They have a FB page, I think their names are listed there....hey Matt was the status on the car?
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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