'94 speed density 351w torque build help - Page 2 - Ford Bronco Forum
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post #21 of 25 (permalink) Old 03-17-2019, 10:31 PM
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Originally Posted by decipha View Post
fitech is junk and he can't run it anyway since he has to maintain CA emissions (which is the USA emissions standard now)

Best bet is to just leave the engine alone for now other than taking care of any maintenance. Fab up a turbo kit. All you need is a 70mm turbo. Check out the on3 kits for cheaper decent turbos. Could probably even modify one of their kits to make it a touch easier possibly.

You'd be looking $600 to get your ecu programmed with custom code to control the turbo correctly and still run on 87 octane. It will far exceed the fitech and run better than stock.
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Just curious...have you owned a FiTech? Had bad experiences with their products? Please tell me you have a hands on experience to justify your calling them junk. Not just for justification, but also because I’m curious about any failures people are having. Also, I am running it exactly how I said it’s set up & my tags are current.

The one I’m running works like a dream. Plus, I can now add boost which is my next upgrade this summer. A Vortech V3.

If there’s any doubt in FiTech setup, one could always go with the Holley Sniper...I believe.

To the OP, do whatever you want. You’ll find that so many think they have the best answer for you. What works for one, may not be what satisfies you, or some one else for that matter.

My opinion though is the stock 5.8 upper/lower intake and heads are junk and a major choke point. I swapped mine out for a new Edelbrock Truck Performer Upper/Lower, port matched the upper to a 61mm BBK Throttle Body, did the 6 liter tune up, etc... and still could barely notice any gains. After the AFR 165’s (they do have smog legal heads), the twin air gap, & FiTech, she now sucks me back in the seat which I love. The heads will make you smile. Even if you ran them with the Eddy Truck Performer. By the way, I haven’t even touched the cam yet. I’m not a fan of turbos on gas engines. On my diesel pickups it’s fine, but hate the lag. It’s not instant like a super charger. Also, you are speed density, as was I, Which is why I went FiTech. After pricing everything from Fiveology, etc, etc, the FiTech for a little over $900 was much easier on the pocket book.

Good luck with what ever you choose and most of all have fun. It’s a bronco and that’s what it’s all about!👍🏻
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Last edited by JCG74; 03-17-2019 at 10:37 PM.
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post #22 of 25 (permalink) Old 03-18-2019, 02:19 AM
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yes plenty experience I have a speed shop here in new orleans. I always defer those that insist on fitech to stick with upgraded stock ecu's since the fitech just does not have enough control to meet my personal demands. For someone that just drives and doesn't actually pay attention to the minor nuisances that engines make its not a big deal. But for someone that wants ultimate control and is obsessive over the very fine details it just doesn't fit the bill. I find the dashpot control alone to be lacking significantly and that in itself prevents me from using it or recommending it. If and only IF they had adequate dashpot control I may consider it an entry level ecu but its just not there yet.
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post #23 of 25 (permalink) Old 03-18-2019, 08:14 AM
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Originally Posted by decipha View Post
yes plenty experience I have a speed shop here in new orleans. I always defer those that insist on fitech to stick with upgraded stock ecu's since the fitech just does not have enough control to meet my personal demands. For someone that just drives and doesn't actually pay attention to the minor nuisances that engines make its not a big deal. But for someone that wants ultimate control and is obsessive over the very fine details it just doesn't fit the bill. I find the dashpot control alone to be lacking significantly and that in itself prevents me from using it or recommending it. If and only IF they had adequate dashpot control I may consider it an entry level ecu but its just not there yet.
I follow ya. Is your opinion of the Holley Sniper the same? Im not an engine guru, know the basics, and learn as I go while depending on a shop to do all my work that’s over my head. A lot of guys are running these FiTechs on their race trucks now and swear by them, which is how I was talked into it to begin with (by some of them). I always find it interesting how the difference in opinions can be so vast. 👍🏻
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post #24 of 25 (permalink) Old 03-18-2019, 10:09 AM
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Originally Posted by JCG74 View Post
Just curious...have you owned a FiTech? Had bad experiences with their products? Please tell me you have a hands on experience to justify your calling them junk. Not just for justification, but also because Iím curious about any failures people are having. Also, I am running it exactly how I said itís set up & my tags are current.
I have second hand experience... long time Chevy hotrodder couldn't get his FiTech to run the LS he was using. Even paid someone else to investigate, and they couldn't find an answer. Ended up ditching it for I believe a Holley Sniper which worked.
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309ci inline 6, 9.75:1 CR, Big Valves, ROLLER ROCKERS, Clifford intake and headers, Schneider 140H cam, DUI HEI ignition, 450 QFT 4bbl carb, Saginaw swap, FlowKooler water pump, Steel timing gears, 2.5in y-pipe into a single 3in cat and borla muffler.
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post #25 of 25 (permalink) Old 03-19-2019, 08:01 AM
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I would have kept the factory engine management and went Fiveology Mass Air conversion. I don't see $900 for the Fitech being the cheaper alternative. But, as long as you like it and it works for you, that is what matters. I do strongly suspect the gains you saw from it and the heads would have been just as pleasing as the heads with the other intake and fuel injection.

To the Op, I think you understood my first post perfectly. But to clear up what may have been confusing to others, when I suggested a new set of connecting rods, I meant a 408" stroker rotating assembly. If, you decide to stick with the stock rotating assembly, the factory crank is going to be the best choice. The stock rods will be fine. If you select new pistons (even if you don't) I'd have the rotating assembly balanced.

Heads, intake, cam, exhaust and torque converter will make the most improvements for what you want. Fiveology is a good group to work with. Fairly helpful and supportive. Most of the engineering behind this type of conversion has R&D from Ford itself. Can't see it not being CARB compliant as that is part of why it was changed in the last years of the trucks and broncos.

hth
tim
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