help me spend my money. efi quandry.
#1765174
02/28/15 01:54 PM
02/28/15 01:54 PM
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Joined: Jun 2006
Posts: 257 albemarle, NC
dusterbd13
OP
enthusiast
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OP
enthusiast
Joined: Jun 2006
Posts: 257
albemarle, NC
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so, as some know, I had a major failure in the duster. this allows me to finally go EFI as I rebuild it.
the constraints: multiport intake, 1200cfm throttle body with GM IAC and TPS. LS1 injectors.
what im running up against now, is making a decision on engine management. it boils down to drivability for me. I don't want to screw with it. I cant tune worth a damn. its a fairly radical engine (solid roller, 12in manifold vacuum at 900rpm idle, indy heads, 3 inch exhaust, 390 at the rear wheels on pump gas)and I want it as docile and drivable as possible. it has never been this, no matter what carb and manifold I have tried. im sick of trying.
my options, really, are three: 1. ez efi retrofit kit. I can get it for 700 shipped brand new, self learning, no ignition control. spotty info on the retrofit, but mixed reviews on the full tbi style kit. I've installed a couple of the full kits, and they were a [Edited by Moparts - Family Friendly Site - Keep it clean] to get right but were great once they were. 2. GM L98 (tuned port 350 corvette)computer and harness. cheapest of the options. I already have it all. I cant tune worth a damn, and no one I know of is still messing with them. at that point, I order a mail order tune and take my chances. 3. Megasquirt. can do anything. ever. and im almost completely on my own except for guys on the internet. no one around here will touch it.
so which management system? my gut says spend the money on the ez setup, but my cheapassness balks at that kind of cash.
up next is fuel system: two options. 1. pusher pump/surgetank/e2000 rail pump. already have this in my elky, and works flawless. little noisy. id have to put my surge tank in the trunk in this one, and run all my plumbing through the floor. don't like that. but I also already have all the pieces, so cheapest option. 2. tanks inc pa4. drop in high pressure/return module with sump tray. 225, but done, quiet, and clean.
im leaning towards the PA4, but again, my cheapassness comes into play. lastly is plumbing. I hate the look of braided stainless/red-blue AN lines. the push lock stuff scares me at 60psi of fuel pressure. on the elky, I used push lock AN fittings with standard high pressure line and fuel injection hose clamps to make my soft lines. ugly as hell, but functional. also not cheap. id like to do something cleaner and neater here, as it will be much more visible in the engine bay and other areas. ideas?
so help me out here, guys. I really need it.
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Re: help me spend my money. efi quandry.
[Re: dusterbd13]
#1765176
02/28/15 05:35 PM
02/28/15 05:35 PM
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Joined: Jan 2003
Posts: 31,200 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,200
Oregon
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Talk to Rich at www.fastmanefi.com and follow his advice. He can get you a setup that works.
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Re: help me spend my money. efi quandry.
[Re: AndyF]
#1765177
02/28/15 06:04 PM
02/28/15 06:04 PM
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Joined: Jan 2003
Posts: 27,548 So Cal
autoxcuda
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,548
So Cal
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At some point your eyes get bigger than your stomach.
If it's got a bunch of cam, heads, exhaust is it reasonable that EFI could somehow transform all that into a easy going docile run some errands cruiser?
Last edited by autoxcuda; 02/28/15 06:10 PM.
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Re: help me spend my money. efi quandry.
[Re: autoxcuda]
#1765179
02/28/15 06:17 PM
02/28/15 06:17 PM
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Joined: May 2007
Posts: 701 Northern California
lilcuda
super stock
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super stock
Joined: May 2007
Posts: 701
Northern California
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12 inches of vacuum isn't that bad. Sounds like you need somebody to help you tune it rather than throwing a bunch of money at it. The 340 in my 66 Barracuda had 10 inches of vacuum and I could practically let the clutch out at idle without killing it. It would only need a tiny bit of throttle to pull away from a dead stop. It would go down the road at 25 mph in 4th gear at 1500 rpm no problem.
'67 is an abbreviation of 1967 67' is an abbreviation of 67 feet They are not interchangeable.
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Re: help me spend my money. efi quandry.
[Re: lilcuda]
#1765180
02/28/15 09:58 PM
02/28/15 09:58 PM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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I would do the Megasquirt, the correction tables and self learning would work if you are willing to spend some time with it. I would also use the wide band O2 in each header and what is the LSA of the cam? I have 112 so if I ever want to go that route, its only a manifold swap for me. Tim
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: help me spend my money. efi quandry.
[Re: dusterbd13]
#1765181
02/28/15 11:11 PM
02/28/15 11:11 PM
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Joined: Jan 2003
Posts: 1,482 Lake Orion, MI
goldduster318
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
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I'm doing something like this as well. Mine is a 340 that made 470 crank hp and has a 227/231 @.050, 0.530 lift, 110 LSA hydraulic roller cam. I have 13.5 or so in Hg at idle, but I wouldn't even consider it that radical. Other than warm up, it's easy to deal with once the engine is warm.
I've bought the following things and am going Megasquirt3 Pro
I currently have the Aeromotive Phantom 340 for the pump in the back, 3/8 feed and return lines. going to use steel other than the short flexible ones that will be braided teflon lines. Intake is a Edelbrock Super Victor EFI, 36 lb/hr injectors, edelbrock rails, Holley 1000 cfm throttle body. All the sensors and connectors are basically for a mid 90s GM car. Will be running LSX coil near plug, 36-1 crank wheel, cut down 5.2 magnum distributor.
Megasquirt 3 Pro computer. Considering they have "VEAL" which is Volumetric efficiency analyzer live on the full version, it's basically a self-tuning system when you have the full version of the software.
'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
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Re: help me spend my money. efi quandry.
[Re: 67vertman]
#1765185
03/01/15 06:34 PM
03/01/15 06:34 PM
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Joined: Jan 2003
Posts: 1,240 Saline, MI
efisixpack
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,240
Saline, MI
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If I can give any advice it would be to use a cam designed for efi and find a good tuner. I went through a lot of pains when I first built this 15 years ago because there wasn't any good (really nonexistent) support in the industry at the time. A good tuner will also help you in your choice of ecu's, as some of the more advanced and expensive systems may have more bells and whistles than you will ever need. Lucky for you, there are now a ton of choices in regards to ECU's, cams, intakes and tuners now. I eventually swapped over to an Accel Gen VII, swapped the cam and simplified the ignition system. Once you have efi and it's properly tuned there is no going back. sorry for the crappy pic, I was still using kodac disposable cameras back then lol. [image]http:// [/image]
Last edited by efisixpack; 03/02/15 12:28 AM.
When I die I want to go like my Grandfather did, quietly in his sleep. Not screaming like the passengers in his car.
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