Go Back   Corvette Forum > C3 Corvettes, 1968 - 1982 > C3 General
Sign in using an external account
Register Forgot Password?
Register Search Today's Posts Mark Forums Read FAQ Vendor Directory
Search
C3 General
General C3 Corvette Discussion not covered in Tech Sponsored by
Corvette America

Welcome to Corvetteforum.com!
Welcome to Corvetteforum.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Corvetteforum.com today!


Corvette Store
 
 
C7 Parts & Accessories
C6 Parts & Accessories
C5 Parts & Accessories
C4 Parts & Accessories
C3 Parts & Accessories
C2 Parts & Accessories
C1 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
  
Closed Thread
 
 
 
 
Thread Tools Search this Thread
Old 05-16-2013, 07:30 PM   #1
blownstingray
Junior Member
 
Member Since: May 2013
Default I put a deposit on a blow1974 stingray and am plaing to drive it back acrosse country

So i just bought a 1200 hp 8-71 blown 502 .030 over 1974 stingray and am driving it across country. what should i expect for mpg out of a 4 speed richmond t 10 and 3.73 diff with drag tires on the back? What kind of tools should i bring and what should i be checking on the journey home? I havent bought the car yet but what should i be looking for during the inspection? Thanks for your help this is my first classic car!

Last edited by blownstingray; 05-16-2013 at 07:45 PM.
blownstingray is offline  
Old 05-16-2013, 08:03 PM   #2
BKbroiler
CF Senior Member
 
BKbroiler's Avatar
 
Member Since: May 2002
Location: Lebanon Township New Jersey
Default

You can't be serious.
BKbroiler is offline  
Old 05-16-2013, 08:15 PM   #3
my 76 ray
CF Senior Member
 
my 76 ray's Avatar
 
Member Since: Mar 2007
Location: Hinckley OH
Default

I saw a Camaro with a 675 HP blown engine at a car show. The owner trailered it to the show because it got 2 MPG.
my 76 ray is offline  
Old 05-16-2013, 08:15 PM   #4
oldgto
CF Senior Member
 
oldgto's Avatar
 
Member Since: Feb 2012
Location: Orlando FL
Default

Quote:
Originally Posted by blownstingray View Post
What kind of tools should i bring and what should i be checking on the journey home?
Bring a truck and a trailer. Check the tie downs every hundred miles or so.
oldgto is offline  
Old 05-16-2013, 08:21 PM   #5
blownstingray
Junior Member
 
Member Since: May 2013
Default

it is my understanding that a blower will increase mpg if you stay out of boost. im hoping for around 9 mpg with the 509. dead serious btw
blownstingray is offline  
Old 05-16-2013, 08:22 PM   #6
Bagmup
CF Senior Member
 
Bagmup's Avatar
 
Member Since: Mar 2013
Location: Sunshine Coast Qld
Default

Quote:
Originally Posted by BKbroiler View Post
You can't be serious.
Seriously...This.
Bagmup is offline  
Old 05-16-2013, 08:33 PM   #7
SpeedyGjr
CF Senior Member
 
SpeedyGjr's Avatar
 
Member Since: Apr 2006
Location: Brooklyn New York
Send a message via AIM to SpeedyGjr
Default

8-71 making 1200? Very unlikely
SpeedyGjr is offline  
Old 05-16-2013, 08:35 PM   #8
blownstingray
Junior Member
 
Member Since: May 2013
Default

Quote:
Originally Posted by SpeedyGjr View Post
8-71 making 1200? Very unlikely
http://www.racingjunk.com/C3-1968-19...-Corvette.html

got a great deal on it too. its now tuned for 93 btw

Last edited by blownstingray; 05-16-2013 at 08:42 PM.
blownstingray is offline  
Old 05-16-2013, 08:36 PM   #9
ddawson
CF Senior Member
 
ddawson's Avatar
 
Member Since: Mar 2001
Location: San Mateo CA
Default

Quote:
Originally Posted by blownstingray View Post
it is my understanding that a blower will increase mpg if you stay out of boost. im hoping for around 9 mpg with the 509. dead serious btw
Unless it's a new style with a bypass it's going to lose MPG.

Do you have pictures or more information?
ddawson is offline  
Old 05-16-2013, 09:00 PM   #10
KenSny
CF Senior Member
 
KenSny's Avatar
 
Member Since: Apr 2001
Location: Olmsted Falls Ohio
Default

Buy a GPS and plot your gas stations waypoints, you are going to make a lot of pit stops.
KenSny is offline  
Old 05-16-2013, 09:02 PM   #11
gator79
CF Senior Member
 
gator79's Avatar
 
Member Since: May 2005
Location: Jennings LA
Default

wow, going to be a wild trip, check often to see if the tanker truck is still behind you. good luck with the trip
gator79 is offline  
Old 05-16-2013, 09:08 PM   #12
LAddams
CF Senior Member
 
LAddams's Avatar
 
Member Since: Dec 2011
Location: gilboa ny
Default

Says it runs on 100+ octane. That could be difficult for a long trip. They still sell octane boost?
LAddams is online now  
Old 05-16-2013, 09:18 PM   #13
AGVI
CF Senior Member
Canadian Events Coordinator
 
AGVI's Avatar
 
Member Since: May 2003
Location: Science Bitch! Mississauga, Ontario
Default

Trailer it home. <-----this!
AGVI is offline  
Old 05-16-2013, 09:20 PM   #14
blueray72
CF Senior Member
 
blueray72's Avatar
 
Member Since: Jun 2005
Location: North of the Bay California
Default

Quote:
Originally Posted by AGVI View Post
Trailer it home. <-----this!
^^^^that
blueray72 is online now  
Old 05-16-2013, 09:48 PM   #15
Ontario73
CF Senior Member
 
Ontario73's Avatar
 
Member Since: Apr 2013
Location: London Ontario
Default

Quote:
Originally Posted by blueray72 View Post
^^^^that


Seriously. With those rear gears and a 4 speed I wouldn't expect 4mpg on its best day with a tail wind. It will be turning well over 3000rpm to maintain 60 on the highway. Suppose it still has the stock fuel tank of 18 gals basic math says that's a maximum of 72 miles between full tanks! That is going to cost you a bundle and take days to go across the country!
Ontario73 is offline  
Old 05-16-2013, 10:02 PM   #16
jackwabbit703
CF Senior Member
 
jackwabbit703's Avatar
 
Member Since: Feb 2013
Location: Clifton Virginia
Default

Quote:
Originally Posted by blownstingray View Post
So i just bought a 1200 hp 8-71 blown 502 .030 over 1974 stingray and am driving it across country. what should i expect for mpg out of a 4 speed richmond t 10 and 3.73 diff with drag tires on the back? What kind of tools should i bring and what should i be checking on the journey home? I havent bought the car yet but what should i be looking for during the inspection? Thanks for your help this is my first classic car!
If you got the money for the fuel and deal with pain of hearing high engine revs, GO FOR IT! I wouldn't even drive my vette cross county line with 4.11 gears getting 9 MPG.

You're purely joking correct?

Last edited by jackwabbit703; 05-16-2013 at 10:05 PM.
jackwabbit703 is offline  
Old 05-16-2013, 11:25 PM   #17
TimAT
CF Senior Member
 
TimAT's Avatar
 
Member Since: Oct 2006
Location: Gladstone MO
Default

Start a thread and post info on your trip. 427Hotrod does that when he takes a road trip. Makes for interesting reading.

FWIW- Ol' Red has 4:11 gears and a BB. I trailer it if I'm going any distance. Bill Gates couldn't afford to feed it. Last time I bought gas was late last fall before it got cold. 10 gallons was $65, and it's almost empty again.

Last edited by TimAT; 05-16-2013 at 11:27 PM.
TimAT is offline  
Old 05-17-2013, 12:12 AM   #18
MikeKey
CF Senior Member
 
MikeKey's Avatar
 
Member Since: Apr 2012
Location: Clearwater FL
warriormike mike_key mk3yllc mikekey
Default

1200 plus horsepower and no dyno sheet?
MikeKey is offline  
Old 05-17-2013, 01:55 AM   #19
F22
CF Senior Member
 
Member Since: Oct 2006
Location: Palmdale CA
Default

That Corvette is purely a neighborhood car and taking a highly modified, near drag-strip car cross country is not an undertaking for the timid. Look up Hot Rod Magazine's trip with the blown yellow Crusher Camaro (named because it was saved from the crusher). It was a heck of an adventure, with numerous breakdowns and ensuing hilarity. If you've got mech skills, money and time, I say go for it, but expect the unexpected, cause it won't be like slogging your Toyota Corolla, that's for sure. It'd be best to bring someone along too...
F22 is online now  
Old 05-17-2013, 01:59 AM   #20
F22
CF Senior Member
 
Member Since: Oct 2006
Location: Palmdale CA
Default

Quote:
Originally Posted by blownstingray View Post
it is my understanding that a blower will increase mpg if you stay out of boost. im hoping for around 9 mpg with the 509. dead serious btw
PS: There ain't no staying out of boost with a roots type blower, it's ALWAYS boosted, 100% of the time, unlike a turbocharger. You might get nine mph max! The Crusher Camaro, got eight...
F22 is online now  
Old 05-17-2013, 01:59 AM
 
Go Back   Corvette Forum > C3 Corvettes, 1968 - 1982 > C3 General
Reload this Page I put a deposit on a blow1974 stingray and am plaing to drive it back acrosse country
 
 
 
Closed Thread


Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
'74 Corvette Stingray vhbrown C3 General 5 10-17-2013 11:24 AM
1974 with 454 #s matching sportster89 C3 General 31 02-10-2013 01:52 AM
One Issue One Request 1974 Stingray L48 mudtime C3 Tech/Performance 12 08-09-2011 01:47 AM
Updating Speakers in 1974 19Tyler74 C3 Tech/Performance 7 06-07-2011 07:32 PM
1974 Stingray Help! Lakeside09 C3 General 39 11-13-2010 11:29 AM


All times are GMT -4. The time now is 11:21 AM.


Emails & Password Backup