So true. I don't know of anybody around here that has used both systems at all much less on the same engine. It's interesting to see your findings.
CK5
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I kinda wish I had an adjustment ECM for the TBi. I did have it on there too
All in all having the adapter is always a crap shoot, and I know that was part of my issue with the Q and TBI
Using the standard style intake instead of the Vortec seems to be a non issue
It may or may not have gotten port matched...
i dont think i have seen this also i all my searching with my sniper problems .
That’s for the gas thieveswho is steeling gas when its so cheep these days ?
Drive it to the station, no issues. Put 20 fresh 91 octanes in it, and readjusted the idle screw to reset the IAC at 5
No funky tape and hold your tongue to one side to set it holley wants me to do this next
Drove it easy down the county road to get a feel for it. Needs a light return spring, throttle is pretty light and easy. Too easy. easy fix with stiffer spring over the other units short arms and super stiff springs
Little lazy but not bad. Smooth, no weird spots in the RPM range. Gave it some throttle going up the county road. Could already feel some adjusting had occurred. Ran it up to the state highway and pulled off. Checked for leaks.
Return loop, just more putt putt back to the stop sign and turned. All primary throttle, up to 5k clean, paddled a few gears and ran it up to 75. Barked out the exhaust on the 1-2, but that was it in terms of issues on the drive
Hammered it off the light, pulled to 6k, cleaner and more firm than the first pull. Downshifted it hard from 3-2 up to 5500, no issues
All this on the base setting. I made no changes other than setting the timing and aforementioned idle screw just WOW is all i can say after reading this
Way easier to set up and use than the Holley. Already runs and idles clean. I’ll be curious to see if/how it improves with more miles, at 20 right now glad to here this info on setup and running quality
nice info thanks . and my feedback is in red . big THANKS to you for undergoing this 3 part project and giving us and the world your feedback .
That long term is quite a bit off. Hopefully that will come down some.
As an aside, I ran across this a few months back when I was looking at 3rd gen Camaros. Not sure what ecm is in the tbi systems here but it definitely makes tuning easier. Guy replaces the prom chip w/ a flashable setup and some software so you can tune just like a modern car.
http://www.dynamicefi.com/EBL_Flash.php
As an aside, I ran across this a few months back when I was looking at 3rd gen Camaros. Not sure what ecm is in the tbi systems here but it definitely makes tuning easier. Guy replaces the prom chip w/ a flashable setup and some software so you can tune just like a modern car.
http://www.dynamicefi.com/EBL_Flash.php
For those era cars I’d convert it to a mass air and a 7427 computer so you can use Tuner Pro
But really, Edelbrock offers a system for that too. So much easier to tune....
That conversion does use Tuner Pro, they're even working on a self-tuning setup.
I don't believe the Edelbrock retains control for emissions equipment does it? AZ people at least, still have to pass emissions - even run those stupid rollers here, as well as visual. Hate those bastards..
Sorry about the side track, was just pointing out options for others that may be curious, cheaper than Edelbrock but more work.
I don't believe the Edelbrock retains control for emissions equipment does it? AZ people at least, still have to pass emissions - even run those stupid rollers here, as well as visual. Hate those bastards..
Sorry about the side track, was just pointing out options for others that may be curious, cheaper than Edelbrock but more work.
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Glad you got her going again. Hopefully you all with all this fancy EFI stuff figured out so when I go to it you have all the kinks worked out.
Emissions
Well we are hoping. Two guys on board already and several others close to having them running
https://ck5.com/forums/threads/edelbrock-proflo-4.335548/
Some fill in the blanks
This is the Vortec manifold hole. Since I went to a gen1 intake, one hole on each corner is open to the oil galley. I punched the threads so the Allen screw wouldn’t pass through
This is the Vortec manifold hole. Since I went to a gen1 intake, one hole on each corner is open to the oil galley. I punched the threads so the Allen screw wouldn’t pass through
Back track for a minute for details
Replacement Vortec gasket
The original gasket (or what’s left)
These fit the port of the head real well
I used it to outline the port of the intake
The Edelbrock supplied gasket is the grey one
This is why the fuel rails were off @tenderfoot
I hand filed this, mostly just to eliminate the step up from the intake into the head, even though there was no reversion, it was a significant step
I was very careful not to interfere with the injector port more than this and compromise it
Before and after with the gasket
Replacement Vortec gasket
The original gasket (or what’s left)
These fit the port of the head real well
I used it to outline the port of the intake
The Edelbrock supplied gasket is the grey one
This is why the fuel rails were off @tenderfoot
I hand filed this, mostly just to eliminate the step up from the intake into the head, even though there was no reversion, it was a significant step
I was very careful not to interfere with the injector port more than this and compromise it
Before and after with the gasket
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I like what you did to it. Am I understanding correctly that you used the vortec gasket then? It looks as if they were a better fit than the Edelbrock ones. Or is it more similar than it looks?
I still believe that your pictures would be a whole lot better with Mrs. Bent's hands in them!
I still believe that your pictures would be a whole lot better with Mrs. Bent's hands in them!
T
tenderfoot
Guest
Did you hand file it to keep aluminum dust out of the intake?
I feel like I, have to, do this now just so I can use a black sharpie.
I feel like I, have to, do this now just so I can use a black sharpie.
I wanted to port match my 383 but I was a bit over eager
I'll have to pull the intake to seal the valleys again anyway maybe I'll feel froggy... Glad your up n runnin
I'll have to pull the intake to seal the valleys again anyway maybe I'll feel froggy... Glad your up n runninNo used the edelbrock gasketsI like what you did to it. Am I understanding correctly that you used the vortec gasket then? It looks as if they were a better fit than the Edelbrock ones. Or is it more similar than it looks?
I still believe that your pictures would be a whole lot better with Mrs. Bent's hands in them!
And
Dust wasn't a concern, I stripped the intake. After I was finished I used the vacuum, then the air compressor.
Used the file because it was actually working a lot better to maintain the angle and control how it was cutting. Only took about an hour once the rails and injector were off
thats not very professional of someone in your position
