|
05-31-2008, 05:52 AM | #1 |
Registered User
Join Date: Jul 2003
Location: Tucson, AZ
Posts: 111
|
TBI swap questions
Just picked up a complete TBI motor with all wiring and accessories. Got a few questions for you guys that have done this swap into a 67-72.
1. Where did you mount ECM? I have factory AC. I thought about glove box? 2. Where did you return the fuel at? I no longer use the original vapor canister line, can I use that? 3. I even got all the cruise control items, except switch. Anybody hook up a CC and what did you use for a switch? 4. One last question; anybody do any aftermarket upgrades to TBI to improve performance/MPG? |
05-31-2008, 06:59 AM | #2 |
Senior Member
Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,990
|
Re: TBI swap questions
My ECM is under the dash on the left side near the column support.
You can use your vapor line as a return. I made a return thru my sender since my 68 doesn't have the vapor evap stuff. As far as the cruise, that's a great idea. You'll have to check the wiring diagrams to see what kind of signals and switching the switch uses. I bet some later model tilt column switch would work. You'll also need the speed sensor from the trans and the right stop lamp switch. As far as mileage, there are some folks making economy chips. http://www.tbichips.com/
__________________
ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
05-31-2008, 03:23 PM | #3 |
instagram "footbraker67"
Join Date: Apr 2007
Location: Mustang,Oklahoma
Posts: 204
|
Re: TBI swap questions
I put a tBI motor in my 67 and i love it. I installed my ECM right behind my glove box on top of the factory ac unit it just sat on top and the glove box held it in place, that was just a temporary place until i installed my vintage air but i never had any problems with it. I installed a blazer gas tank under the rear of mine so i cant really answer the vapor line question but it should work. I dont know about the cruise control but it sounds like a good idea to me. As for mileage, with the 700 r4 and mostly highway drivin i have been gettin around 19mpg. here are some pics of my junk.
__________________
1967 lwb, bigwindow, factory air (converted to Vintage Air), custom option,4.5- 6 drop, TBI injected 355, 700r4, 5 lug, daily driver. 1967 Chevelle Malibu Drag car, 355, brodix heads and intake, powerglide, 10.82 @ 123 mph 1966 chevelle malibu, Street/strip, 355, spare parts from my other chevelle, 12.82 @104 mph 1968 lwb parts truck |
12-25-2008, 09:20 PM | #4 | |
resto body guy
Join Date: Mar 2008
Location: milford, Nebraska
Posts: 128
|
Re: TBI swap questions
Quote:
that is one slick looking install!!! |
|
12-25-2008, 09:39 PM | #5 |
laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,514
|
Re: TBI swap questions
.Yeah buddy! It looks like it came that way. 19 mpg ain't too bad either.
__________________
Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
11-29-2009, 01:43 PM | #6 |
resto body guy
Join Date: Mar 2008
Location: milford, Nebraska
Posts: 128
|
Re: TBI swap questions
i have a pretty good question i'm cleaning up my 87 tbi 350 so i can paint it and install into my71 cheyenne. well my exhaust manifold are cracked and cobbled and this motor has a air diverter valve. that hooks into the egr system.
do i have to have it? will it hurt my mpg? thanks to any advice... David |
05-31-2008, 06:40 PM | #7 |
///Relaxed Atmosphere
Join Date: Apr 2003
Location: Hockley, TX
Posts: 657
|
Re: TBI swap questions
chevelle,
whose kit do you use, I am wanting ot do this to my 64 and would like to know how you did your tbi install jeff
__________________
72 Suburban 64 Chevy short fleet 04 Chevy Colorado Sport Reg Cab 2012 Chevy Avalanche 2003 Chevy S10 Blazer Xtreme http://www.hubgarage.com/mygarage/RA_Jeff 64 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=295915 |
05-31-2008, 11:55 PM | #8 |
instagram "footbraker67"
Join Date: Apr 2007
Location: Mustang,Oklahoma
Posts: 204
|
Re: TBI swap questions
Its not really a "kit". It was a fairly simple install. First i started out with an old school 350 block. I have a friend that has done one of these swaps before in a toyota so i got alot of the parts from him. All of the injection stuff(heads intake throttle body etc..) are factory gm parts. the Wiring harness is a painless harness and it was well worth the money, it is pretty much plug and play. I would strongly recommend a 700r4 trans with this setup because its got everything you would want, low 1st gear and overdrive and the lockup convertor is still controlled by the computer(2000 rpm at 70 mph, with 3:73 gears). the serpentine setup is not factory on the TBI units, its for a later model 5.7 vortec system. I used this setup for many reasons for one it only has three mounting bolts on each side, it looks better and the main reason was because it was FREE
if you need any help just ask, im sure if i dont know the answers someone on here does
__________________
1967 lwb, bigwindow, factory air (converted to Vintage Air), custom option,4.5- 6 drop, TBI injected 355, 700r4, 5 lug, daily driver. 1967 Chevelle Malibu Drag car, 355, brodix heads and intake, powerglide, 10.82 @ 123 mph 1966 chevelle malibu, Street/strip, 355, spare parts from my other chevelle, 12.82 @104 mph 1968 lwb parts truck |
06-01-2008, 03:34 AM | #9 |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,772
|
Re: TBI swap questions
-
Here are a few threads on the subject.. I didn't read them all but maybe you can get some info from them. http://67-72chevytrucks.com/vboard/s...=throttle+body http://67-72chevytrucks.com/vboard/s...=throttle+body http://67-72chevytrucks.com/vboard/s...=throttle+body http://67-72chevytrucks.com/vboard/s...=throttle+body http://67-72chevytrucks.com/vboard/s...=throttle+body http://67-72chevytrucks.com/vboard/s...=throttle+body http://67-72chevytrucks.com/vboard/s...=throttle+body LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
Bookmarks |
|
|