Rexbottoms
Registered Member
I disassembled a set of tbi injectors and did some machining and man do they make a huge difference.
CK5
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Made my own tbi injectors
- Thread starter Rexbottoms
- Start date
What machining did you do? What kind of difference did it make? Do you have any pictures?
How much for a pair shipped to 93311?!
Dude! The guy has one post, no info or pictures and your ready to buy?
Then I would have to ask... if there was a way to get them apart and redrill for bigger injectors and resemble? Do you think I would have done it by now? Would you like to see what is inside a TBI injector after being machined in a lathe to get it apart?
I'd have to be curious as to "huge difference"? 
in what way? flow more? GPH? can't see how any machining is going to affect the needle/orifice..
just buy bigger injectors..
none of it does any good without changing ECM table/values.. not to mention having more of a need for fuel, cam, heads, flux capacitor, etc...
in what way? flow more? GPH? can't see how any machining is going to affect the needle/orifice..just buy bigger injectors..
none of it does any good without changing ECM table/values.. not to mention having more of a need for fuel, cam, heads, flux capacitor, etc...
filled out his profile real good . 
http://coloradok5.com/forums/member.php?u=75764
http://coloradok5.com/forums/member.php?u=75764
Dude! The guy has one post, no info or pictures and your ready to buy?
Then I would have to ask... if there was a way to get them apart and redrill for bigger injectors and resemble? Do you think I would have done it by now? Would you like to see what is inside a TBI injector after being machined in a lathe to get it apart?
shhhhhhh...
he works for the secret government agency that buys up all the 100 mpg carburetor patients.
filled out his profile real good .
I'm not doubting the guy may have some good contributions to the brotherhood.. but that post was ridiculous..
1 sentence about a custom injector? silly...
I know . just sayin he don't look to spammerish to me . but ya this posting is lacking info .
I expect that it did make a huge difference....since a flooding truck is a lot different than a running truck.
Rexbottoms
Registered Member
New to site
I'm new to the site and thought I would post this to see if my first post worked. I guess it did. I will have Picts on as soon as possible. What I did was drilled out the three spot welds on the tip of the injector the threaded out the tip. Once that tip was off I took the inner spray tip and machined the eight holes on the same helix that they were before but larger. That allows for more fuel. Did not have to do anything to the ECM. Just adjusted timing and fuel pressure. With the additions to the motor such as can and heads the motor would not rev out do to lack of fuel with stock injectors. I try to build before buying. So I made a test bench with one stock injector on one side and the new one on the other and with them both running at the same time there was a larger amount of fuel being sprayed and more in the container on the left side than the right. Hope this post is better for those asking questions.
I'm new to the site and thought I would post this to see if my first post worked. I guess it did. I will have Picts on as soon as possible. What I did was drilled out the three spot welds on the tip of the injector the threaded out the tip. Once that tip was off I took the inner spray tip and machined the eight holes on the same helix that they were before but larger. That allows for more fuel. Did not have to do anything to the ECM. Just adjusted timing and fuel pressure. With the additions to the motor such as can and heads the motor would not rev out do to lack of fuel with stock injectors. I try to build before buying. So I made a test bench with one stock injector on one side and the new one on the other and with them both running at the same time there was a larger amount of fuel being sprayed and more in the container on the left side than the right. Hope this post is better for those asking questions.
63chevyll
1/2 ton status
Ahh. Sounds like you built an engine and were running out of fuel due to air flow/cam. Curious if you would like to share your engine build
Dude! The guy has one post, no info or pictures and your ready to buy?
Then I would have to ask... if there was a way to get them apart and redrill for bigger injectors and resemble? Do you think I would have done it by now? Would you like to see what is inside a TBI injector after being machined in a lathe to get it apart?
I was kidding. I just want my motor to run right.
I wonder how crappy its gonna run once it goes closed loop.
fuel pressure up or down?
Rexbottoms
Registered Member
Brought fuel pressure down a bit from 18psi. Have been running the truck for two days without any problems. Not sure how to post video of truck running. Some help please
You're going to have to post a link of the video or use photobucket.
