Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-22-2008, 10:09 PM   #11 (permalink)
Master EcoModder
 
Big Dave's Avatar
 
Join Date: Jan 2008
Location: Steppes of Central Indiana
Posts: 1,313

The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
90 day: 21.03 mpg (US)
Thanks: 0
Thanked 183 Times in 124 Posts
Actually this guy has been around for some time.

One thing he had working for him is that everything GM ever built will bolt up into everything GM ever built, so the engine conversion had some minor challenges but since that model corvette could have had a 454, the 6.5 was an easy conversion. Going with the mechanically-injected NA 6.5 saved him a bunch of heartache doing electronic brain surgery or the plumbing involved with turbo engines.

The 700R4 is probably the reason he doesn’t drive it more. I had a 6.2 with a 700R4 and went through transmissions like a teenager through potato chips. Not just noise but spectacular failures with parts and tranny fluid scattered down the road.

I do agree that much better performance could be possible with a stick and a very low gear ratio, but getting much below 3.08 is problematic. A T56 has a 0.5:1 overdrive that would drop RPM a lot.

This is a very do-able conversion. There are lots of C4s and some older C5 ‘Vettes available for under ten grand. Find one with a stick – stick ‘Vettes are moderately common – hoist out the gas engine and bolt on the 6.5 (or 6.2 if you really want good MPG.) You will have to monkey with the accessory drives a bit.

Get a set of front springs for a 454. The 6.5 is 200 lb heavier than a mouse motor.

‘Vette have good aerodynamics to start with as long as you stay away from the “Sting Ray” mid-60s versions, but these are all held by collectors anyway. ‘Vettes take a little getting used to. To many people they seem “loose.” They are. Fiberglass has a higher coefficient of thermal expansion than sheet steel has, so the car has to be built loose so it won’t buckle in mid-summer.

__________________
2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-22-2008, 10:16 PM   #12 (permalink)
EcoModding Apprentice
 
H4MM3R's Avatar
 
Join Date: Feb 2008
Location: Mackinac City, Michigan
Posts: 235
Thanks: 0
Thanked 3 Times in 3 Posts
Why not install a 4L80 from GM. That would handle the diesel with no problem.
  Reply With Quote
Old 02-22-2008, 10:16 PM   #13 (permalink)
Master EcoModder
 
Big Dave's Avatar
 
Join Date: Jan 2008
Location: Steppes of Central Indiana
Posts: 1,313

The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
90 day: 21.03 mpg (US)
Thanks: 0
Thanked 183 Times in 124 Posts
Here's a thought:
Get a late-model C4 or early model C5 'Vette with a stick and instead of the 6.2 or 6.5, find a Benz engine out of a Sprinter van. 150 HP. 280 ft-lb @ 1200-2400 RPM. Much lighter and the RPM is OK for running chevy accessories.

I bet 60 MPG would be achievable. Would that ever give the TDI guys heartburn.
__________________
2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
  Reply With Quote
Old 02-22-2008, 10:22 PM   #14 (permalink)
EcoModding Apprentice
 
H4MM3R's Avatar
 
Join Date: Feb 2008
Location: Mackinac City, Michigan
Posts: 235
Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by Big Dave View Post
Here's a thought:
Get a late-model C4 or early model C5 'Vette with a stick and instead of the 6.2 or 6.5, find a Benz engine out of a Sprinter van. 150 HP. 280 ft-lb @ 1200-2400 RPM. Much lighter and the RPM is OK for running chevy accessories.

I bet 60 MPG would be achievable. Would that ever give the TDI guys heartburn.
That would awesome. I do not think it would be that hard to find a vette with a bad or no motor for cheap.
  Reply With Quote
Old 02-23-2008, 10:31 AM   #15 (permalink)
igo
Master EcoModder
 
igo's Avatar
 
Join Date: Dec 2007
Location: Wheeling, WV
Posts: 410

Mini Box Truck - '05 Scion Xb
90 day: 32.87 mpg (US)

It FITs - '09 Honda Fit Sport
90 day: 36.2 mpg (US)

Impreza - '13 Subaru Impreza Sport
90 day: 30.92 mpg (US)
Thanks: 12
Thanked 14 Times in 10 Posts
This is really good mpg for a vette. That engine is really jammed in there (not room for much anything else).
  Reply With Quote
Old 02-23-2008, 12:04 PM   #16 (permalink)
Master EcoModder
 
Ryland's Avatar
 
Join Date: Jan 2008
Location: Western Wisconsin
Posts: 3,904

honda cb125 - '74 Honda CB 125 S1
90 day: 79.71 mpg (US)

green wedge - '81 Commuter Vehicles Inc. Commuti-Car

Blue VX - '93 Honda Civic VX
Thanks: 867
Thanked 433 Times in 353 Posts
With a fiberglass body, you can use it as your winter car!
Just make sure other corvett owners don't flogg you.
  Reply With Quote
Old 02-23-2008, 01:49 PM   #17 (permalink)
Master EcoModder
 
Big Dave's Avatar
 
Join Date: Jan 2008
Location: Steppes of Central Indiana
Posts: 1,313

The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
90 day: 21.03 mpg (US)
Thanks: 0
Thanked 183 Times in 124 Posts
Other 'Vette owners would be up in arms. You'd have to be like this guys - doing a "Corvette Rescue."

A C5 with 3.45 gears and a T56 manual cruises in top gear at 1300 RPM - just perfect for the Benz sprinter engine.

Sprinter engines should be available in junkyards of from rebuilders like Jasper in a year or two.

You think that 'Vette engine compartment is tight, you should see my Super Duty. I'm pretty sure they had to grease the engine to get the cab down on it.
__________________
2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
  Reply With Quote
Old 02-23-2008, 11:58 PM   #18 (permalink)
Master EcoModder
 
Big Dave's Avatar
 
Join Date: Jan 2008
Location: Steppes of Central Indiana
Posts: 1,313

The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
90 day: 21.03 mpg (US)
Thanks: 0
Thanked 183 Times in 124 Posts
I found a source for the Sprinter engine. About $4500 for a rebuilt I-5 2.7 liter diesel. Not a bad price for a rebuilt diesel.

No dimensions, but just looking at it I see a problem. Like all inline engines it is tall and would have to go into an engine bay desgned for a 90 degree Vee engine.
__________________
2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
  Reply With Quote
Old 02-24-2008, 11:46 AM   #19 (permalink)
EV OR DIESEL
 
Join Date: Dec 2007
Location: South Louisiana
Posts: 1,733

FarFarfrumpumpen - '03 Volkswagen Jetta Wagon GLS Premium

Quorra - '12 Tesla Model S P85
Thanks: 55
Thanked 99 Times in 79 Posts
Send a message via AIM to dremd
There are v6 diesels available. I know VW has at least 1, but I'll bet Mercedes does as well.
This is awesome, and another higher MPG one would be even cooler. (just incase you thought the TDI guys would be mad lol)

My thought on ultimate tdi fuel economy is a Polo 1.6 tdi (or equiv. from another manufacture) in an insight (or Aero Civic).
__________________
2012 Tesla Model S P85
2013 Nissan LEAF SV totaled by now deceased intoxacated driver.
2012 Nissan LEAF SV
6 speed ALH TDI Swapped in to a 2003 Jetta Wagon
  Reply With Quote
Old 02-24-2008, 01:31 PM   #20 (permalink)
Master EcoModder
 
Big Dave's Avatar
 
Join Date: Jan 2008
Location: Steppes of Central Indiana
Posts: 1,313

The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
90 day: 21.03 mpg (US)
Thanks: 0
Thanked 183 Times in 124 Posts
2008 Sprinters come with a 3.0 V-6 that looks a lot like their Blue-Tec engine. There is no chance of getting one on the used market right now. a crate motor might go over $15,000. That will change with time.

The corvette is a very seductive start. It is light, sturdy, and aerodynamically excellent.

__________________
2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
News: Smart testing a 70 mpg diesel in the US in 2nd gen car MetroMPG General Efficiency Discussion 4 07-02-2009 12:51 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com