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-target completion date :as budget allows
-target maximum cost : $1500
-target et : 7.99 in the 1/8mile on junk street tires
-target level of emotion : joy
-target streetability :extremely high
-potential setbacks : EVERYTHING. it might not fire, might not even turn on, might run like crap, might be wired wrong, might spontaneously combust, you get the idea
so now Im just gathering parts together to try to attempt this.
just got my intake, fuel rails, and throttle body in. ordered a relay box, all the sensors, and most connectors already from diyautotune. should be here next week.
the throttle body supposedly flows 1000cfm. it looks like its possible as the bores are a lot bigger than the 750s and they dont have any boosters creating a restriction. its also VERY well made, and weighs probably 10lbs less than the holley 750
the efi intake is about 1.5 inches taller than the strip dominator. its just slightly taller though in overall height when you compare it with the carbs.the plenum area on the efi intake is HUUUUUGE. I'll have a pic tomorrow.
(btw, this is what comes up when you try to do a title search for efi
Sorry - no matches. Please try some different terms.
The following words are either very common, too long, or too short and were not included in your search : efi
)
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Ability is the poor man's wealth
"cheap is not a word in the Hot Rod dictionary" - seattle mike
Last edited by CyanJaguar; 28th-March-2009 at 11:29 PM..
What happened to TURBO?! Im going to show up at your local strip and run a 5.99 beside your 7.99 just to rub it in. I hope your gonna do blowthru with that, I wouldnt mind doing EFI on my setup. What are the specs and brands of all that stuff? What controller are you using, computer? Sounds cool for sure, more details please.
What happened to TURBO?! Im going to show up at your local strip and run a 5.99 beside your 7.99 just to rub it in. I hope your gonna do blowthru with that, I wouldnt mind doing EFI on my setup. What are the specs and brands of all that stuff? What controller are you using, computer? Sounds cool for sure, more details please.
too many gremlins for now. I decided I did not (YET) want to jeopardize life or limb putting turbos capable of 1500rwhp on my car until I get everything sorted out. all these recent accidents got me skurred
once I get it all dialled in though Im going right back to the twins then I'll run a 5.6 beside your 5.99
holley intake, fuel rails, and throttle body. $1179 list, bought it for $500.
Im using a megasquirt II ecu with everything sourced from diyautotune.com
go to their website they have two awesome articles on converting. total cost there with all sensors,pigtails, and everything is around $600
then I'll need a cheap laptop, an hei8 distributor, and thats It. its almost the same price as an aftermarket turbo carb. I already have the fuel system in place so Im good to go there.
it does not make sense to not convert because the msII does things that you would need expensive boxes to do on a carbureted system.
it datalogs for you - replaces innovate logger at $250
it can be used as boost retard - replaces msd 6530 at $369
can you say value for money?
__________________
Ability is the poor man's wealth
"cheap is not a word in the Hot Rod dictionary" - seattle mike
Last edited by CyanJaguar; 26th-March-2009 at 10:42 PM..
found a guy locally who had some injectors for sale
50 bucks !!! with one missing o ring. I bet they have every bit of 100k miles on them
bosch pn 0 280 155 890
gm #12555894
part number search is showing up as 98, 01 ls1, 24lbs at 43.5psi and 28lbs at 58psi. should support around 400hp I think at 58psi
now I need to go pick up some connectors for these
__________________
Ability is the poor man's wealth
"cheap is not a word in the Hot Rod dictionary" - seattle mike
Last edited by CyanJaguar; 26th-March-2009 at 11:04 PM..
so, continuing with my budget diy efi conversion, I hit up the junkyards today. found a fan shroud(did not even come close to fitting -too big), junction studs, and fuel injector pigtails at the pick n pull. I even snagged an extra o ring to replace the missing one, even though Im being told to get all new ones, which I'll probably do. I was not able to find a decent hei8 for a decent price. the place that wanted $50 had them but I definitely will not pay that, and the place that wanted $25 did not have any v8 ones.
the coolest thing is the prices. he sold me the fan shroud for $10, and let me have 13 connectors and two junction studs free. jegs sells an almost identical item for $14.99 each ( http://www.jegs.com/i/JEGS/555/10521/10002/-1 ) and I bought two from ebay for about $18 shipped, so this represents a huge deal. I didnt even need the studs, but one can always find a use for a junction stud right? I already have 3 in my engine bay so power is not more than a couple of feet away from anything.
the other thing that happened today is that I started porting my intake. a guy on the chevelles website said he picked up A LOT by going from the peanut port oval size to the large oval port size. here is the page detailing this http://www.horsepowerracing.com/html/holley_mpfi.html
I started doing one just to get a feel for it. I know the last time I did a gasket match I was told I needed to open it up more instead of just the entry so thats exactly what Im doing now. I still have a ways to go with the test port but it'll get there slowly. Im planning to open it up all the way in like the other guy on the link above
I wouldn't hesitate to at least replace the upper O rings on the injectors. That's the high pressure side and will seal against fuel leaks. The lower O rings keep dirt from being sucked in mostly. The injector sprays the fuel out but because the intake valve may be open there should actually be a vacuum at that point. If the valve is closed at the timing of the spray(non-sequential or sometimes called batch firing) then the air chamber leading up to the valve is charged with fuel spray and air.
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65 Chevy II with a Hilborn injected 427 sm. blk. Bagged........the car, not me. But it's gone now.
The injector sprays the fuel out but because the intake valve may be open there should actually be a vacuum at that point. If the valve is closed at the timing of the spray(non-sequential or sometimes called batch firing) then the air chamber leading up to the valve is charged with fuel spray and air.
Hi, I dont quite get this part about the vacuum and its effect.
__________________
Ability is the poor man's wealth
"cheap is not a word in the Hot Rod dictionary" - seattle mike
Fuel at the rail to injector is at 42 psi(+ or - depending on the regulator setting {whether it be vacuum adjusted or mechanically set}). With the engine running the cylinder head valve opens and creates a vacuum in the manifold runner. Sequential fired injectors open at the appropriate time to let fuel spray in with the air being drawn from the piston going downward and the cyl. head valve open. With batch fired injectors, the fuel is also sprayed as above but also again when the valve is closed. Basically it fired twice. The computer is responsible for the firing of the injectors based on feedback from the timing. The more expensive computors are able to fire the correct quantity of fuel in a single shot at the correct time. The rest of the computers systems(generally slightly, but not always, lower pricing) fire the injectors with two shots in the 4 stroke engine. Each shot (should) being 1/2 of the total amount needed to correctly fuel the engine for each cylinder.
If you could vsually see the air in the manifold in the area of the injector, you would see the air rushing past the injector and flowing into the open valve. When the valve is closed there isn't (basically) no air is flowing yet the injector could fire in a batch system.
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65 Chevy II with a Hilborn injected 427 sm. blk. Bagged........the car, not me. But it's gone now.
oh ok, i get it now. a batch fire system fires when the intake valve is both closed and open. I dont think the megasquirt is set up for sequential but Ive read that its not too big of a deal to do a batch fire system.
btw, nice car!. that injection system looks high dollar. is that a kinsler? also, how do you have your regulator mounted? I cant quite make it out from the pics.
__________________
Ability is the poor man's wealth
"cheap is not a word in the Hot Rod dictionary" - seattle mike
Last edited by CyanJaguar; 29th-March-2009 at 07:25 PM..
so I finished porting the manifold today. I hope I never ever have to port a manifold again. it was a long four hours. ouch.
anyhow, its done and its time to move on to something else. I found out my package from diyautotune is sitting in the post office waiting for me to come pick it up during the hours when Im at work. not gonna happen.
anyhow, the porting is done. its not pretty, but it should work.
lots more daylight than before
next item on the agenda is to install all my sensors hopefully in the next few days
from the plenum side.
__________________
Ability is the poor man's wealth
"cheap is not a word in the Hot Rod dictionary" - seattle mike
oh ok, i get it now. a batch fire system fires when the intake valve is both closed and open. I dont think the megasquirt is set up for sequential but Ive read that its not too big of a deal to do a batch fire system.
btw, nice car!. that injection system looks high dollar. is that a kinsler? also, how do you have your regulator mounted? I cant quite make it out from the pics.
It's a Hilborn manifold. I'm doing an Enderle for my 64. Similar in loof but with 4 twin cast aluminum stacks. You don't see the regulator because it's mounted near the firewall but not in the engine compartment.
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65 Chevy II with a Hilborn injected 427 sm. blk. Bagged........the car, not me. But it's gone now.
have not updated in a while. Ive been completely lazy around this build. just spending my time looking for deals and getting all my parts together. Ive finally got 99% of the parts together and starting to put some parts together.
got the performer rpm off the engine and put in the holley efi manifold.
my neighbor GAVE me a laptop(600 mhz, 96megabytes of ram) about 50 years old lol. all I had to buy were an ac adapter for $11 and a battery for $50.
the fuel system
the best part about this is the total price of this build so far is $1300 and there is no reason it shouldnt come in under $1500. I know some high performance carbs that cost over a thousand.
got a deal on an msII with the v3 board. new it sells for $405, and the seller decided not to pursue the install and I was able to buy it for $250. I was gonna get the kit for $247 and solder it myself but after looking at the innards of that thing I am really glad I didnt attempt to solder it myself. it would not have been pretty and probably would not have worked
I got the wiring and all the connectors. the diyautotune kit has all the wires color codedI couldnot find the tps connector online so I snagged it at the local pick n pull for $1(rightmost connector in pic). also got a couple of ford starter solenoids and 5 more junction studs cos you can never have enough junction studs. do you guys know if a 3 point starter solenoid can be used in place of a high output relay?
__________________
Ability is the poor man's wealth
"cheap is not a word in the Hot Rod dictionary" - seattle mike
This entire thread SCARES THE CRAP OUT OF ME !! Im old school and all this computer/wiring stuff gives me a stomach ache like ive been kicked in the nads ! BUT i am interested ,because i have always wanted the RELIABILITY that comes with EFI (well supposedly) .... KEEP up the good photography and insight ! i appreciate it . I need some tums .......
I hope your gonna do blowthru with that, I wouldnt mind doing EFI on my setup. What are the specs and brands of all that stuff? What controller are you using, computer? Sounds cool for sure, more details please.
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