Dude try running down the road breathing through a soda straw.. That aircleaner wouldn't feed a lawnmower Was a mechanic for 30 yrs and always amazed me that people would think this was a good idea

I am using the 600 hp model on a SBC and it works great. I would recommend the fitech unit to everyone. Easy to install and easy to tune.

That filter is part of your problem tuning I’m positive.

Great video , but here is a tip on your tuning problems. These throttle body FI systems will never run correct on a dual plane intake. You either have to remove the intake and cut the divider out of the plenum or install a open plenum manifold. A easy test would be to put a 2in. spacer under the FI unit and try it before you remove the divider. You can watch the enginemasters series where they test a Holly TB FI and see the problems they had also.

Put the same system on my new 351W crate motor. 350 hp, four speed in a 1976 F150. I didn't have to do any tuning. Just the initial set up. I just drove it. As it learned it ran better and better. Also I live at 5700 feet. I have a little over 500 miles on it now. Runs great! No white screen. Large gauges stay displayed unless power has been removed i.e. Dead battery.

Really, you guys have some great ideas. Especially, especially, air flow in, out (intake, air cleaner, etc. ,big exhaust etc. ). Me and my friend put a hot Cam in his old power wagon with 318 v8. we did air cleaner, intake, 4 barrel etc. it only gained a little. We knew we still had to open the exhaust, so we added a 2.5inch dual exhaust, it must have gained 100 plus HP! Obviously, the exhaust was choking everything else! Anyway, it all worked out. I have a Rochester q jet on my old 1979 Chevy 4x4 truck, it runs amazingly well for such a simple device. I'd like to upgrade to fuel injection, like FI tech, or Holley Sniper. What do you guys think, is it worth it to me? Thanks.

pulled the filter and 40 horsepower was found

wanted to say I do agree with the air filter issue Through The Years working with Aaron fuel mixtures especially with carburetors of course I've seen great changes in performance when paying special attention to what is the right size and setup of air filter to allow your motor to perform at its best I have a big block Chevy that is carbureted I really wanted to buy the fitech system cuz it is Affordable and eventually add the pro charger to my car would you still suggest buying this system?

How about the couple of Bigfoots running in the back ground at 45 seconds?

Petrol360, I had a big problem with an extreme lean condition on tip in (getting back into the gas at part throttle) with a stock vortech 350. I found on a forum where a guy tricked the fitech by telling it it was a much larger engine. I was at my wits end with this thing so I gave it a try. I ended up using 502 cid and it worked! I'm using a 5 speed manual, and as youve seen this problem rears it's ugly head even worse than an automatic. I had to cut the fuel learn way down after doing this as well. It's sticking to the target afr even at that setting. I have the same unit you do and after several months it's finally running good. Don't give up just yet

a 8hp briggs snd stratton couldnt get enough air thru that air cleaner duh

White screen is a voltage issue. It doesn't necessarily mean your connections are bad. Just means you're losing voltage while cranking. If it drops below 10 volts while cranking it'll kill the whole system causing your white screen. Could be something as simple as a weak battery or bad ground. Fix this issue and you won't have to unplug your handheld all the time and reset gauges. For your "heel toe" issue, since your car is a manual DFCO cut map and return map are likely set to high. And since these systems do not have CFCO this makes DFCO all the more important. Try setting DFCO Cut map to 16. DFCO return map to 18.

Just curious, do you have a hyfire ignition or cdi ignition installed to compliment the efi?

So it's hard to understand, and you wired it wrong.

I've never personally use that efi... but I would bet that voltage is dropping too low when you crank the car. What voltage are you getting while cranking?

How many volts do you have going to the ecu? Ecms cant handle a full 12v it can only be 5v

Try playing around with your ignition system. Have your distributor recurved and increase your spark plug gap and try a colder heat range. I've built lots of motors and sometimes the simplest things like ignition retuning can give you better throttle response. Good luck.

have some of the same issues w/my 400 fitech have you gone into PRO TUNE ?

thanks for posting I'm here in so cal near fitech and am considering this for my 96 Dodge Ram 1500 5.9 360 thanks for sharing I may just have fitch install it and and set kit up

Good enough for me. Any recommendations on a good efi carb?

Good video. I appreciate your insite.

Excellent information which engine is better efi or mpi for better fuel economy ?

So I just put this on and when I get on it it pings really bad how do I stop that.

I installed a MSD atomic and had great performance at full throttle, but experienced decel and idle concerns. I integrated the spark timing and all my problems went away. The ECM can rapidly control timing to compensate vs fuel / air. Sorry, but that would mean you upgrade to the better FiTech system. You would have to also buy what is referred to as a "ready to run" distributor, remove vacuum advance and lock the mechanical advance plates as well. Good luck.

That air filter SUCKS.....

Regarding your decell issue. Have you got the latest firmware update on the handheld unit?

Weird ive been running the fitech 400 system on my 302 stock in my bmw. I of course had to tune out a little on the afr side but didnt really get any trouble out of it. I do have to run it a lil on the richer from preventing system starvation it gives from being at a high bank sometimes when i run the oval. I do heel toe to engage sometimes and havent ran into a no response throttle when decel , but once in a while heavy throttle and fast decel (prev before running it a lil richer) it would die out. Let me know if u want me to pass my settings just in case u wanna try them.

Yea my buddy had the 600hp FiTech system on his 500hp 383 stroker about a year ago.. Fought with that thing for a couple months, constantly on the phone with tech support. Finally just sent it back and went back to a carb. Never could get it dialed in right.

I’m using the FiTech Go EFI 600 hp on my SBC. Online support has been OK, phone support was excellent. I agree the connection to the handheld programmer could have been designed better but I understand it is not designed to be used as a permanent dashboard, that is what gauges are for. I bet your performance issues go deeper than the EFI system. I thought my EFI wasn’t working correct, turned out I had a leaky intake gasket.

This is the reason I will going to a Holly efi sniper, more money but worth it. Thanks for the feedback on this unit. I have seen other videos talking about the poor customer service also. Cheaper is not always better. You get what you pay for.

Have you taken your car to a tuner that works on these, I agree about the air cleaners small size robbing air flow.

Make sure your system us grounded to the battery. Run a cable from the negative if tge battery right to a carb mount stud should help with the white screen.

Anybody got any trouble shooting advice why i got to prime (pour gas into the Fi-Tech) to crank. I've watched the videos, re-booted, etc. has not got me there. What is the fix you think????

Anyone know what air cleaner that is on the throttle body?

It looks like a person will have to purchase the full package in order for this to work correctly, to get support to fix the issues. I have a 1972 Oldsmobile Cutlass auto transmission, with a 350cu 300hp engine, with a 2 barrel carburetor. I am having trouble with the 2 barrel even thou it was rebuilt. Does anyone have a video showing how to install FiTech EFI system for my car ? Thanks.

Build it around a Haltech system, yeah it's an overkill but once you have it you grow with it.

i'm so glad you brought up these stupid freaking connectors!!! i started with the 600hp version. now i have the 1200hp on my 6.0ls and its much easier to tune, but i get same white/black screen as you. there is much better support if you call the guys at fitech. great presentation all around my friend. ty

Good video. I appreciate your feedback. I’m looking to use this system and your vid will help me to keep and eye on things. I don’t know why people have to be so negative on here .

White screen is low voltage. Also make sure you are running the latest firmware, I think 198 is the latest firmware. Those tuning settings you mention, should appear. Also, without timing control, you aren't gonna get super great results.

You can get a thermostat housing with a place for a temp sensor in it. I have one on my 302. So I have the temp port on the intake manifold and on the thermostat housing.

Thanks for the information on the issues your having I am on the fence weather to go with the 400 or the 600 hp unit ... I think this will help me make the choice.

Regular Joe. Around here we call that Shade Tree. Rock on my man.

We used 2 on our boat, twin 408's. I found them easy to set up and yes, forums for help but I was done in an afternoon ad loved them ever since. Sorry you had bad results but timing one on an rx7, I can see that being difficult. Good luck.

I'm gonna say you should try running a new larger air filter. that thing would be restrictive as hell, probably confusing the unit.

Hot rodding isn't always easy. Makes the end result more rewarding when you have to work at it.

Sounds like this guy should have bought a carburetor

i had a dual throttle body system on a 871 blower, i had to return, injectors pulsed with my blinkers, wipers. it filled my engine full of gas twice before we figured out the injectors would pulse even when ignition was off, the tech and everyone there was rude no help at tunning, got fast xfi now love it

I see the problem, the air cleaner (air filter) is too SMALL.

Also you cannot run a drop base air cleaner, Mine is on a corvette and cannot get a air cleaner fit on my car ☹️

Been running a FiTech for years now that I got tired of fiddlin with my old motorcraft 2150, and to be honest I have not had the experience you have had. I do know what that white screen for me was because I initially hooked into a system that actually cut off during cranking. Other than that it's just tinkering to find your proper settings, where I personally took it to a local shop and had them tune it. It's been great for me ever since.

i am here trying to find out if one can tune via lapto pc or just the hand held i hate hand heald tuner i am usually a megasquirt guy hate to have to use throttle body then get irritated then install a ecu that is not junk

So have you resolved any of these issues and is your vehicle running better?

Only issue I had with my mean street one was power supply, once I got a good steady 12v it works good.

Great honest video!

Who's engine and trans mounts did you use?

Thank you for your honesty

Had my 400 hp unit o my 406 sbc for 2 years now and have never had a problem.

You may as well be feeding air into that car through a single Stromburg 97. I had a filter like that on my 1976 Ford Pinto’s 390cfm Holley. I bought it at the infamous “Super Shops” speed shop. My dad saw that on my car, took it off and threw it in the trash and my car thanked him.

I’m actually an air/fuel specialist for performance engines. Other than purchasing the tune upgrade there’s a couple things you should do if you want to get your best efficiency out of the engine. You should open up your ECU/PCM whatever you want to call it and tune your specs from there to get the fuel dialed in to the engines needs. And if you haven’t already, put a digital ignition box on it so you can control your rpm’s depending on how you’re driving it, that should take care of the shifting issues. But a must do before anything else is to put the inline FiTech fuel-pump offered by FiTech for that specific system along with a pressure regulator. In my opinion that’s your issue. I could be wrong but that’s just some advice.

Could probably get a more stable power feed during start by adding a capacitor (and perhaps a diode so the capacitor won't try to feed the whole car, just the control box...)

I have one and the timing control doesn’t work I’ve noticed in my instruction there are contradictions I believe the chines that made it had problems translating English. I’ve talked to friends that also have problems with the wiring.

That air filter sucks though. Have tried tunning without that filter?

I find this funny. I’m thinking back to when I started doing hot rod work. When my friends and I built a 49 Ford mixed with a 51 Mercury and we had trouble with vacuum hoses and the 4 electric wires were confusing. We called the Gang Green. Have fun.

Its 2021 has FiTech addressed any of these issues?

it's your intake. mine works great with just a spacer if you ever dealt with carbs. you would know some carb and intake combos dont work together also. sometimes you have to play around till you find what works. mine had hiccups on a summit dual plane threw a 1 inch spacer in and it fixed it. the summit intake wasnt milled down in the center so the Fitech was getting funny readings. but I do like my holley system alot more though.

I completely agree,I owned a 600hp one and it was ok but tricky on tuning.I will never own another one.

Thanks for the info. You told the good and bad , which is fair . I like hearing the whole truth One suggestion . Get a bigger air filter . It may be choking that engine Motor trend had a good video about comparing almost 20 air cleaners . It's great info Hope things get squared away for you

white/black screen issues are most likely operator error, wiring anything directly from the battery like that is usually a very bad idea, especially if you try and use any kind of jump starter on it, you'd probably fry the unit.

Dude I’m running the 600 pa on a 5.3 with a procharger and it’s a beast!! No problem at all... seems like a user error to me??👀👀👀🤣🤣🤣🤣

Love my fitech (meanstreet).

just glancing at the back of your car the insides of the exhaust are sooted, I'd start with your air fuel ratio. that might fix a lot of things

FiTech kit makes our 65 Country Sedan wagon with a 428FE run like a champ. Im sorry you had issues, maybe some professional tuning is in order.

I had Fitech 600 hp and it failed. It wouldnt support fuel over 6000 RPM. And it always hard start spent 4 months talking to tech and they were rude. So they sent me another one hooked it up started just fine the first night the next morning I turned the key on and the ecu went up in smoke and fitech won't send me another one

I haven't had any issues with my fitech system, i have the Ultimate LS 600hp system. Their are plenty of tutorials, my buddy has a similar setup to youres on his gbody Malibu and no issues. Update your handheld and make you're adjustments.

A lot of cars shut down the accessory power supply when cranking, the ignition power supply isnt the same one as you have this running from would be my guess and you see this sort of issue with cheap gps units as well. Part of the economy of efi is the fuel cut off on decel, so if you want throttle response on decel, then of course you have to disable it. Part of tuning to your preference is to understand the system and your cars system. Nice car :)

What turned me away from them was the crappy customer service, they couldn't even respond to my email with the basic questions I asked them.

I seen big foot in the background too!

I actually took mine off and bolted my BG 750DP back on my race car the other day because I was getting dead spots on hard acceleration and it wasn't a pump shot issue because the only way to cure it was to roll out of the throttle all together and then reapply it. only once in every 20 minutes of racing! weird . my carb never did this, and really poor service and no info or comprehensive manual.

The white screen issue is low battery voltage during cranking. Either you battery is close to its use by date or you have a voltage drop. The best FiTech resource is “FiTech Owners Group” on Facebook. Also as others have said that air filter is way undersized and well past it’s use by date.

While it is a self tuning unit, really all’s that is there for is to give you a base tune and if you’re looking for performance you won’t see much difference compared to a carb.

For the power most efi say straight on the battery not a terminal or any other spot but the battery

What is with the riding lawnmower air cleaner element? Might as well stuff a sock in the intake. Beautiful car, however.

good vid, thx

Thanks for the heads up !! brother, why don't you just drill & tap for another temp sensor?

your screen goes blank when you start the vehicle because it's losing voltage and I did not hear you say that you're hooking directly to the battery like you're supposed to be

I run the 30002 ( 600 hp ) and I love it. I’m going to purchase FiTech units for my other cars too. Great customer service and very affordable.

I had this same unit on a chevy 283 and was unimpressed. I didn't really have any terrible problems but it certainly wasnt plug and play, never buy a carburetor again like I was expecting. Cranking time was about the same as a carburetor. Fuel economy was about the same as a carburetor. Driveability was about the same as a carburetor. You know how you replaced your quadrajet with a holley when you were 16 to be cool and tinkered with it for about a year and got it running pretty good for the most part and you felt a little bit of improvement in power or driveability with each jet or squirter change but there was always still a little bit of tuning left to do... this is like that. Probably should have just left the quadrajet alone and made sure the choke was adjusted and the thermac air cleaner was working properly. I put about 10,000 miles on my fitech unit. I wouldnt take the time to leave a bad review on summitracing but I wouldnt buy it again. Id either buy a quadrajet or an ls engine. GM, FoMoCo, and Chrysler seem to have worked it out better than the small companies offering affordable efi units.

Sounds like you're going through the learning curve like all of us do there'll be different results with different types of applications. You will be a tuner by the time you get it figured out!!! Did you ever get it figured out and how is it running???

I would definitely stay with FiTech, but go with the 600 horse power version. Change your intake and air filter. Get a single plane intake manifold. A good set of headers and 2 and a half inch dual exhaust. So your in another couple grand, but you will be so happy.

think holley is better? I've been waiting for my holley for months but because of covid shipping. Fitech is actually in stock so might go that route instead

Thanks buddy for the great advice. Your not alone either there is a guy who has a shop in Tennessee and is sponsored by fitech and edelbrock. They both gave him a free system to evaluate and report the findings. He installed the units on 2 of his early 70s Broncos with 302. Unfortunately he wasn't given a Holley sniper kit but after watching his relativity long detailed video he concluded that that fitech system is junk. Same issues you reported. Terrible tuning device with blackouts and he had other issues with surging. The Edelbrock system won hands down. No problems at all fire it up and go riding around for it to tune. I'm really thinking about installing an efi on my 83 Chevy k10 pickup and I'm kind of thinking Holley sniper the 400 hp version with the fuel pump, Filters and everything including great tech support to help regular guys like us get through the installation. I'm thinking spend the extra $200 for the Holley even though I'm going to sell my metal lathe to do this I'm not a wealthy guy lol

Fitech has a great tech line. I have installed 4 systems on customer cars with no real issues. Every tuning questions I've had, their tech line has been over backwards to help me.

I use fitech power adder system on a grudge car . no issues at all. Most time it is application error or instalation error.

For the temp sensor, run you car sensor wire to the sensor for the unit, they should both be able to read the temp.

Rear diffuser looks awesome in that shot!

had the go efi 4 600 on a hi per 355 sbc in a 86 Cutlass. Dual plane and 227 duration cam 109lsa, vortecs, etc. I didn't skimp on the fuel system and this efi system didn't miss a beat. NEVER HAD A PROBLEM. Best experience with efi, hands down. Good product. Lol if I can use it anybody can...

Running a 400HP Fitech on my 78 Bronco. Yeah, you have to tune it, but tuning and changing parameters is a lot easier than changing jets. Mine works awesome, on or offroad. I think your expecting to much and need to brush up on your engine tuning basics....

The go street has pwm fuel control and walbro 255 is non Pwm. Walbro actuslly says not to run their pumps on pwm

Wow, ya that sucks. I will either go with Holley Efi live or stick with my demon carb for now. Thanks