anyone running the max 500 on there motor, what are the pros and cons , how does it run, tech tips, and comparison to other fuel injection systems, i am currently running a fitech dual power adder 1200 hp sys on a BB 545 and i would like more info on the summit max 500 for my 80 vette , i have a verified 1968 327 with alluminum heads a small cam not much eles in this motor, it does have a edelbrock on it but considering doing fuel injection on this motor as well but i didnt care much at all for the set up anddial in problems asociated with the fitech, the fitech now runs excelent but a pita to set up, more so than i think it needs to be,so who is running it and how is it.

 

I am, and at least one other as I recently helped another forum member set his up.
been on my car for almost 2 years now.
I really don't know how to attach a link to my thread "77 EFI Conversion ". also had a thread going awhile back discussing pro and cons of different intake manifolds for use with Throttle body EFI.
bottom line. my car starts cold better than it ever did. and I've had her for over 30 years. fires right up after sitting for a week or more. runs truely brilliant.
Summit as you may know has very good support IF you get onto the right person.
very straight forward install if your a mechanic.
lots of little things don't come with it. like a cable stud. cable mount bracket. return springs, Ect. I run a homemade in tank pump/baffle setup. a LS type filter/regulator. Vaporguard type fuel line.
easy to set up and dial in. only real short coming is the inability to set the IAC park position. learned that it is a multiplier of last idle park. learned to set basic IAC park as low as possible. seems to be working fine. there setup instructions call for 3-10. as close to 3 as you can get it is the best.
you need a Standalone ignition system. if your distributor is working fine and curved correctly, shouldn't be an issue.

 

my fitech took forever to get dialed in, i had to play with DFCO decell fuel cut off, idle target, IAC steps, AFR target, pump shot, cam 1 2 3 4 settings, the fitech came with everything but the fittings are junk, they leak, i had to replace them all with russel fittings, and the fitech is extreamly sensitive to grounds, the manuel has some typos and that isnt any good for when installing it because it has to do with the electrical, the fuel delivery (hyperfuel) needs 2 60 amp relays not just one (typo) if you use 1 your power supply wire gets hot, the temp sensor is off by at leased 7 degrees, and it needs swapped out with the 90 series gmc delco sensor, my o2s failed after 10 hrs i swapped it out with the heated jetta sensor, i been a drivability tech for 30 years, and i have a GM journymen cert and ase master, but this system was not easy to set up, even for myself who speaks obd 1, and 2, in 3 languages gm ford chry, i am wanting to put fuel injection on the 80 vette just not a fitech, it runs great now, but just to much of apita, its just not a true bolt on make a few setting changes and go system doesnt do whats advertised in my book.

 

the MAX 500 is made by FiTech. and yes you need to set up cam 1,2, 3 or 4. these are just base maps to get you close. very simple really. how much vacuum do you make at idle?? 17-19 inches? map 1. 13 inches? map 3. yes I to played with start up, and warm up fuel. pump shot as you call it. etc. these systems are universal and designed to be run on a number of engines.
I tune hotted up Harley's everyday. they run a very simular system. and NO 2 ENGINES are the same. if your looking for a Total plug and play with zero setup. best of luck.
I recently helped a forum member set his up. didn't take long. he has a 383 with a bit less cam than my 350 and a Auto trans. hopefully he can get on here and comment on the MAX 500.
no it doesn't come with fuel lines or fittings. so I just bought good ones. yes I had to make a airfilter stud. (threaded rod).
but then you are not paying for any of that.
once set up. the MAX runs really well. and my fuel economy went up about 20 percent.

 

yes i see that i pulled up some videos on it everything as far as the adjustments and the handheld are the same, the throttle body is a little differant than the power adder system i currently run, everyone else i talk to recomend the sniper sys, but im looking for a basic system to put on it, for around what is it 750.00 and i all ready am well versed in the fitech i guess its a option, the system i have now runs great.

 

All add on aftermarket systems will require some set up.they all will learn. but they learn to what you tell them to learn to. as no 2 engines are the same, some will run better richer, some leaner. and often in different places. some engines will require a fair bit of electronic accelerator pump. some almost none. and some only when you nail it fast and hard.
some need a fair whack of start up fuel and a bit of added warm up fuel. others less. with a wide band O2 sensor these systems can all learn a fuel curve. to what YOU set it to. if you find by experimentation or running on a dyno, that your engine makes better power richer or leaner than your friends engine, you have the ability to adjust those AFR tables.
so yes, you may consider it a pain to get everything dialed in. but others might argue that at least you can adjust to best suit your engine with your exhaust and gearing.
once those adjustments have been set. it doesn't change.
no pulling float bowls and changing jets. no changing springs for secondarys. just push buttons.
yes it does help to have experience with setting up AFR tables. at least a clue where to set start fuel, warm up fuel. and how much electronic accelerator pump you may want.
this is why I helped a fellow Corvette forum member set his up.
even with little background experience, most can get it set through trial and error. a bit of experimentation if you will. might take a bit longer. but you won't be getting fuel spilled all over making adjustments.