89 5.7 into a 86 m1008

[84CUCV]

few questions. asking for a friend.
1. can he use rubber hose for the lines? the truck will be getting a blazer tank under the bed.
he can get the rubber lines cheap.

2. has no wiring. anyone use the painless kit? good or bad??

3. how to adapt rubber lines to the tbi itself..

thanks for the help

 

[dave w]

few questions. asking for a friend.
1. can he use rubber hose for the lines? the truck will be getting a blazer tank under the bed.
he can get the rubber lines cheap.

As long as the pressure rating (pounds per square inch ~ PSI) of the cheap rubber hose is at least 30 PSI.

2. has no wiring. anyone use the painless kit? good or bad??

Painle$$ is expensive, but for the beginner it's a good option.

3. how to adapt rubber lines to the tbi itself..

Try looking here to start with http://www.polyperformance.com/rally/Russell-GM-TBI-Adapter-Fittings-p-1264.html

thanks for the help

Sure, anytime.

dave w

 

[sweetk30]

http://www.affordable-fuel-injection.com/ixxocart/catalog/Harnesses_Parts_Services-23-1.html


and use good efi pressure rated hose.

but best to use hard line for main runs and rubber for flex line sections.

 

[84CUCV]

any recommendation on what we should use?? he got the bed off. all the old lines are gone. ready to start. thanks

 

[dave w]

any recommendation on what we should use?? he got the bed off. all the old lines are gone. ready to start. thanks

For TBI this Russell Performance product http://www.russellperformance.com/mc/hose/twist-lok.shtml is overkill ... at about $4.00 a foot. It's what I use for TPI / MPFI.

Here are the specs for Goodyear Hose http://www.goodyearep.com/ProductsDetail.aspx?id=10526 Up to 50 PSI working pressure, 250 PSI burst pressure. TBI is about 15 PSI, so this hose is rated 3 times typical TBI pressure. It's about $0.85 a foot.

dave w

 

[84CUCV]

ok thanks any other ways to adapt the rubber hose to the tbi? thanks

 

[dave w]

ok thanks any other ways to adapt the rubber hose to the tbi? thanks

What I use are push on hose adapters (also called barbed hose fitting), and tube compression adapters. What I use is an A/N adapter that threads into the TBI, then I use the A/N to push on hose adapter. From the fuel tank I use the tube compression to A/N fitting, then the A/N to push on hose adapter. It's a very effective and safe method of handling fuel. No hose clamps are used and has a very clean look when done correctly. The parts I use are made by the Sweagelok http://www.swagelok.com/ and I purchase the Swagelok parts from Portland Valve and Fitting. Swagelok is good quality stuff, and priced accordingly.

dave w

 

[84CUCV]

thanks have the parts # by some chance?? need a tank now too the one i have is shot and for a carb truck. need a tbi tank. ddint know there was a difference.

 

[sweetk30]

almost all efi feed motors need a tank with a baffle in the bottom to keep the pump with fuel all the time.

just get a blazer tank from 87-91 or a pickup from 87 or a 87-91 crewcab

 

[84CUCV]

thanks found him one

 

[dave w]

thanks have the parts # by some chance?? need a tank now too the one i have is shot and for a carb truck. need a tbi tank. ddint know there was a difference.

I'll need to get back later on the push on / barbed hose fitting part numbers. I get these parts from
[FONT=&quot]OIL FILTER SERVICE COMPANY[/FONT][FONT=&quot]
615 SE Market St
Portland, OR 97214
US
Phone: 503-232-5126[/FONT]



Swagelok compression to AN fittings
[FONT=&quot]B-600-6-6AN Brass AN Union, 3/8 in. [/FONT]
[FONT=&quot]B-500-6-5AN Brass AN Union, 5/16 in [/FONT]

Notes: AN is Army Navy
AN 5 is really 5/16"
AN 6 is really 6/16" or 3/8" (that fraction math thing)

 

[dave w]

I'll need to get back later on the push on / barbed hose fitting part numbers.

Found the same thing at Summit Racing, but only in AN -6

http://www.summitracing.com/parts/DER-98200/?rtype=10

dave w

 

[84CUCV]

thanks for the helps dave w. will order the Swagelok and the part from summit later today. i showed him this post. he bought that goodyear hose. i was thinking hard lines would be safer, but he wanted the rubber one. thinks it will be a bit faster to put in.

 

[dave w]

I've used rubber fuel line for several feet in length back in the carburetor days. I used the split wiring loom to cover the rubber fuel line ... a product like this http://www.cabletiesandmore.com/blackloom.php#cable-wraps2

Depending on where you live, the rubber fuel line will get hard a brittle in just a few years time. The expensive EFI hose gets hard and brittle after about 10 years.

dave w

 

[84CUCV]

sorry to say we live in nj.. rubber will get hard after a few years. i will tell him about that. to me it doesent seem worth it. if it will be redone in a few years