Callaway Supernatural 475 - ZR-1 Net Registry Forums

bdw18_123 · 07-10-2010

This car just got listed on eBay. 1991 Callaway Supernatural 475 ZR-1 with documentation.

http://cgi.ebay.com/ebaymotors/Chevr...fCarsQ5fTrucks

I'm surprised though at the poor cosmetic condition of the engine. Looks kinda weathered for only having 20K miles. Rest of the car looks pretty good, though they could have done a better job at cleaning the exterior.

What mods did Callaway do to the LT5 to get to 475HP?

93 ZR1 Barcelona · 07-10-2010

Very nice Z.

I prefer Horsepower instead of brightness!!!!

Kevin · 07-10-2010

looks like a nice detail is all it needs...

Aurora40 · 07-10-2010

Quote:

Originally Posted by bdw18_123

What mods did Callaway do to the LT5 to get to 475HP?

Head and intake porting. They also replaced the pistons and con-rods with lighter stuff.

The 490 included their "header/cats" and super-natural exhaust system.

sammy · 07-10-2010

nice car but way overpriced, also on the callaway pkg usually the car has coilovers, and brembo brakes . also some say callaway didnt do anything to the shortblk left it stk and just did the porting on the heads plenum and intake ,retimed the cams and retuned the prom .oh and lastly the car might have 392 gears . for 7k more one could have had a 440 in stroker car that was on the registry sale thread not too long ago. i would be surprised if they get 25k for it .

ZZZZZR1 · 07-10-2010

Quote:

Originally Posted by sammy

nice car but way overpriced, also on the callaway pkg usually the car has coilovers, and brembo brakes . also some say callaway didnt do anything to the shortblk left it stk and just did the porting on the heads plenum and intake ,retimed the cams and retuned the prom .oh and lastly the car might have 392 gears . for 7k more one could have had a 440 in stroker car that was on the registry sale thread not too long ago. i would be surprised if they get 25k for it .

I'm pretty sure they have been trying to sell this car for a year and might have gone thru a few dealers.

Did callaway usually do coilovers and brembo brakes? I only know a few with that upgrade....

David

sammy · 07-11-2010

the brakes and the coilovers were addon options to the 475 snat pkg .Callaway to me was a very pricy place to take ones car to mod. their porting was minimal at best at least from what i have seen . inj housings look like they just had the casting flashes taken off. i have seen cars that have just inj housing and plenum, port work done make 15-20 hp more than the callaway. but thats just my opinion, that and 10 cents gets ya a cup of coffee

07-10-2010	#1
bdw18_123 Join Date: Apr 2009 Location: Prather, CA Posts: 809	Callaway Supernatural 475 This car just got listed on eBay. 1991 Callaway Supernatural 475 ZR-1 with documentation. http://cgi.ebay.com/ebaymotors/Chevr...fCarsQ5fTrucks I'm surprised though at the poor cosmetic condition of the engine. Looks kinda weathered for only having 20K miles. Rest of the car looks pretty good, though they could have done a better job at cleaning the exterior. What mods did Callaway do to the LT5 to get to 475HP? __________________ [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:)

07-10-2010	#2
93 ZR1 Barcelona Join Date: Aug 2007 Location: Barcelona, SPAIN Posts: 41	Re: Callaway Supernatural 475 Very nice Z. I prefer Horsepower instead of brightness!!!!

07-10-2010	#3
Kevin Join Date: Jun 2005 Location: pittsburgh Posts: 4,632	Re: Callaway Supernatural 475 looks like a nice detail is all it needs... __________________ It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B"

07-10-2010	#5
sammy Join Date: Jun 2010 Location: back in lone pine Posts: 591	Re: Callaway Supernatural 475 nice car but way overpriced, also on the callaway pkg usually the car has coilovers, and brembo brakes . also some say callaway didnt do anything to the shortblk left it stk and just did the porting on the heads plenum and intake ,retimed the cams and retuned the prom .oh and lastly the car might have 392 gears . for 7k more one could have had a 440 in stroker car that was on the registry sale thread not too long ago. i would be surprised if they get 25k for it .

07-11-2010	#7
sammy Join Date: Jun 2010 Location: back in lone pine Posts: 591	Re: Callaway Supernatural 475 the brakes and the coilovers were addon options to the 475 snat pkg .Callaway to me was a very pricy place to take ones car to mod. their porting was minimal at best at least from what i have seen . inj housings look like they just had the casting flashes taken off. i have seen cars that have just inj housing and plenum, port work done make 15-20 hp more than the callaway. but thats just my opinion, that and 10 cents gets ya a cup of coffee