Some of the truck motors had rollers from day one.
Some of the truck motors had rollers from day one.
I like that adapter plate as well! Got a link to where I could get one? And as far as the bigger injectors go, i was planning on doing a 65lb/hr police car injector setup with a 454 throttle body later down the road, what do you think?
This one didn't. My uncle had it converted for some reason.
That's a nice looking intake. I've always wanted to try a single plane manifold with TBI. Maybe one of these days I will.
Homemade injector flow bench: https://www.youtube.com/watch?v=e_g9K0VEsfE
http://www.youtube.com/watch?v=zBYMtJO0pX8
Nevermind, I misread the first post. Good luck with the project!
Last edited by 1BadAction; 06-27-2013 at 10:30 PM.
94 Blazer, Turbo'd 350 TBI - DD
1991 2500 Suburban Adventure truck - 4wd conversion, 4-link F/R, 582ci CNP Big Block with Terminator X EFI backed by a 6L90 and twin stick'd NP205 t-case
2012 Porsche Panamera Turbo - Date night car :)
1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
1994 3500 Dually , 502 (509) , 264HR , Edelbrock MPFI , PFI '7427
1992 S-10 434 SBC/Tremec - '7427
1986 Monte Carlo SS
1984 S-10 , SAS, 496/700R4/205 , D44/14BFF -'7427
1980 Z-28 496/700R4
1979 Corvette 496/700R4
1977 Olds 98 Regency 403/700R4
Me too! But the only single-planes I could find for Vortecs were High-rise. Definitely not needed on my street truck :lol:.
Well damn, maybe I should have looked harder! Haha. But i heard single-planes can mess with air/fuel distribution throughout the cylinders?
I think the adapter I posted a pic of is available on ebay? I tried looking on ebay, but didn't find it. I'm using a 454 Throttle Body with the Cop Car injectors, good setup! My 5.7 has a roller cam similar to the Vortec roller cam, but I'm still using factory TBI heads with roller tip rocker arms and a modifed factory TBI intake.
dave w
Based on personal experience, I could not give positive feedback, or recommend using the TBI adapter plate available here. http://www.ebay.com/itm/CHEVY-TBI-FU...cea44c&vxp=mtr
If it was made from aluminum, then I would think it would be a good product.
dave w
Understood. So basically, make sure I get one made of aluminum or steel? Or the other way around? (Edit: reread, now i get you. Stay away from composite.)
also, what exactly is involved in the tuning of this beast? I mean what exactly needs to be done to maximize performance with what I have?
Spoke to Brian Harris at TBI chips, and he recommended I upgrade the fuel pump and regulator spring as well, totaling something like $300. My regulator spring is actually adjustable, shouldn't i be able to bump up pressure and call it good?
There's your first mistake. We end up with many people who have dealt with him. Here's a few examples of his tunes and yes we can fix them:
http://www.gearhead-efi.com/Fuel-Inj...ble-truck-soon
http://www.gearhead-efi.com/Fuel-Inj...-proram-issues
http://www.gearhead-efi.com/Fuel-Inj...LMs-every-time!
http://www.fullsizechevy.com/forum/g...chips-com.html
You'll end up with all the right advice here. If you want to learn to tune you'll find that here as well. If you don't have desire or time you can find someone to calibrate a chip for you to start with and data to fine tune it.
There's not much in a stock chip to help once you change to Vortec heads let alone a cam. Here's a primer on changes needed:
http://www.gearhead-efi.com/Fuel-Inj...odified-engine
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
I've never had a steel one work, they all have vacuum leaks and need gasket sealer on all sides! What a mess. Spend a couple dollars more and get a good aluminum adapter, never had any issues with any that Holley makes.
Dave W has already suggested more fuel pressure in first post to your thread. As far as how much? Depends on the engine build. A stock pump can get to about 15, after that you need to change pump to a TPI, early Vortec or aftermarket. They all look identical and bolt in place of stock TBI pump in tank.
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Please stay clear of TBIchips. I am speaking from experience. I wasted $300 going through him.
After having the issues with TBIchips I started searching the web and found this site.
In the end Dave w got me fixed up and I could not be more satisfied with his tuning and hours he has spent helping me understand the process.
I highly recommend you get with ether Dave or Mark they will take care of you. I assure you they will do you right and steer you in the right direction. If you hang around here long enough and ask some questions you can learn to do it yourself or at least be part of the process.
In 7 seven months I have gone from not even considering tuning a chip and being completely ignorant of the whole process to now being able to make minor changes and burning my own chips.
Again talk with Dave or Mark ether way I know they will do you right.
How do I put TBI heads on a Vortec short block
Bookmarks