zraffz

Hey all I'm converting a car from a carbed motor to EFI and want to know what my options are. (78mm turbo)
I originally planned on a harness/ecu from a MAP controlled TPI fbody but after adding up all the sensors, aftermarket intake/tb, etc it isn't worth the headache I'll deal with.

I came across Holley's HP EFI Stealth Ram for $2,500. It says it's complete minus pump and injectors which would make it the ideal kit.
http://www.holley.com/550-820.asp

Would something like this be able to control the water/meth, timing retard/advance for the turbo and everything else? Do I have any other kit options in this price range? The motor will not turn more than 6,500-6,600 at the highest.

Orr89RocZ

iTrader: (20)

That will work. Your big choices for systems are holley hp or dominator (hp will do everything you need but dominator will have more inputs for controlling or monitoring other things like meth inject or whatever else), fast xfi, bigstuff 3, motec, or accell, or even ls1 411 ecm swap.

Those can be adapted to any intake setup. Holley hp can come with the stealth ram if you want that intake or can use any tpi or efi carb style intake. Just need the sensors

Hp seems best bang for buck. I have downloaded the software from website and it looks user friendly. Self tuning ability will help.

Timing control will be based on your map ve tables so no issue there.
Meth can be activated by wot switch or preferably a hobbs boost switch. You only need meth on boost anyway so makes sense to use boost switch.

zraffz

Awesome, going to go ahead and order it then.

WASyL

i would get HSR withoud that EFI stuff and go 808 code with $12P code, adding NVram and WBO2 gives you lo cost SA with fully tunable Boost fuel map etc.
Another way is to get Megasquirt but after checking pros and cons code 808 is easy and cheaper then any other EFI you can buy

best regards

abray1

I wish I knew what you guys are talking about. In the next year or two I want a 1200HP turbo set-up like orrs but I have a lot of learning to do first. I think switching to OBD2 or OBD3 would probably be the best but I don't know enough to make a decision on any of it yet. The tpi stuff is ancient these days.

anesthes

iTrader: (12)

I'm happy with my Megasquirt. 12p would do the job too.

-- Joe

Street Lethal

iTrader: (16)

I remember in the beginning all I did was bad mouth Megasquirt, but now I'm getting used to it. Already have the Shadow Logger used with the android tablet, and am patiently waiting for Phil to release a version that is tunable with just the android tablet alone. Should be unreal...

anesthes

iTrader: (12)

Me too. When they first came out the software was lacking, and soldering an ECM wasn't on my list of fun things to do.

The new stuff blows away most of the aftermarket, and the price point is attractive. Took me a long time to make the switch, and now that I did I'm very happy with it.

Why doesn't tunerstudio run on android? I thought Java was Java?

-- Joe

Street Lethal

iTrader: (16)

The android isn't Sun Java, it has different supporting libraries, but from what Phil is saying he is almost done making a new app. Joe, I never thought in a million years we would be able to tune using a freaking android tablet, eg; press down on the injector pulse width gauge on the tablet and immediately alter fueling. It is really coming, and it is unreal...

anesthes

iTrader: (12)

The fact is, faster processors, more inputs, and modern software is the way to go. Phil makes some good software, and the ms-extra code base has a great feature set. It's nice no longer being stuck in the 80s.

-- Joe

77nomad

iTrader: (1)

So have either of you guys used Shadow Dash yet? I have it on my phone but my MS is on a shelf and my Camaro is in pieces. I like using the accelerometer in GP to see how it handles. I cant wait to tune with it. Just need the Bluetooth adapter.

Street Lethal

iTrader: (16)

Yes, I have the app on my Android tablet...

vwdave

Holley makes a very nice system. That unit as advertised will control a water/meth. It also supports 1-5bar map sensors, so it will control fuel and spark while in boost.

All and all, that setup looks like it will do what you want.

ChevelleFan

iTrader: (4)

Nice to see you finally came around, Joe. I've lurked here a long time, since 2004, and figured the only reason a guy with your knowledge and skill was bad-mouthing it was from lack of real experience. Yes, you had to solder it together back in the early days, but its not that hard, really. Software is now miles ahead of where it was a few years ago, but the full adjustment was always available right in front of you.

I've seen your project page with the Microsquirt inside an OEM case, soldered to an OEM connector. I like that a lot. How has that worked out for you?

For the original poster, I've personally had decent success with Megasquirt, as it is all I've ever used. Some of that FAST, Motec, Accel, always seemed too expensive and/or not well-known enough to get good support for it. The Holley HP stuff sounds really good. Several guys over on chevelles.com are running it and are very happy. The HP might even have the controls to run a 4L60E/4L80E -- or is that the Dominator? -- but that's a pretty nice feature to have if the costs are otherwise similar.

-Dave

anesthes

iTrader: (12)

In the early I just wasn't interested in soldering together 300 components just to try something. The software at the time (megatune) was garbage.

It's come a long way, and has well passed the OE stuff, and a lot of the aftermarket stuff. I still have some gripes, for example the licensing around the msextracode prohibits public posting functional patches and that is plain silly, but all and all it's a great system.

It's worked out fantastic. It took me a little time getting used to where everything is in tunerstudio, but I've got it fired up and driveable. There is a few areas I need to do some more reading on but overall I have a lot more control than the $58 or $8D stuff I had been using previously.

One thing the MS-II lacks (available in MS-III) is a VSS input. It's not a roadblock, but once I get to the track this spring i'd like to log VSS. The MS-II is very easy to add a sensor, declare it in the code, etc the problem is the stock VSS sensor is a frequency multiplier, and the spare inputs on the MS are 0-5v vrefs. Basically, what I need to do is build a small frequency to voltage converter, then create a voltage to mph table.

We're hitting the 30 year mark on a lot of this factory stuff, it's old, slow, doesn't have a lot of memory, and adding functionality takes an assembly language GURU. It doesn't make sense to continue tinkering with stuff that has not evolved.

Oh, and my Megasquirt is flex fuel capable, just like my 2012 GMC.


-- Joe

77nomad

iTrader: (1)

I have the MS3x. I havent run it on the engine yet. But I have yet to want something that wasnt available. Flex fuel is something I have thought about as well. My issue is how to decide what injectors to run that will work with both fuels. My favorite is the flat shift mode. It acts like a 3 step in the burnout box then when you shift. Just hold the pedal to the floor and the ECU will keep it at a desired RPM without over reving.

The new 1.2 code has even more goodies. Like a check engine light if a sensor fails and limp home mode. No issues with extra code to deal with. Plus sequential efi on a 35 year old car is cool. I need get off my but and put the car back together so I can fire it up.

zraffz

I ended up purchasing a stand alone TPI harness without any emissions related stuff/no charging system, etc. I also purchased a Accel DFI Single Plane Pro-Ram (74139) http://www.summitracing.com/parts/acc-74139 and TPIS 58mm throttle body.
I plan on running the EBL P4 flash on the 7730 ecm.

ibmtech

iTrader: (1)

Went XFI 2.0 from F.A.S.T with 16 injector control and internal datalogging.. Was a little pricey, I like it and it's pretty user friendly.