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Anyone running FiTech?

doublekrossd

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Technically it's a "street" motor says the wife, but I'm building a 700hp 505" and I'm really trying to figure out why not to run an efi system. For street use, I'm sure the throttle response would be better, I'd never have to worry about rejetting/tuning for differences in weather and humidity. For the occasional trips to the track I'm thinking it would be much more consistent for the same reasons mentioned above. The system I'm looking at can also handle one kit of wet nitrous or up to 25lbs of boost, just incase I need a Lil more go/ giggle.

Does anyone use one at this power level (700 ish without nitrous) and then add the power adders? What fuel pumps do you use? Fitech only has pumps to support 600 ponies.

Thanks in advance guys!
 
I have the 800HP kit, but still in the process of installing it. I have a 493", with the trick flow top end kit.
 
800 meanstreet I assume? I'm thinking of going that way but I like the fact I can control timing, nitrous, and boost with the EFI 8 PA. Maybe I'm over thinking it? What are you using for a fuel pump?
 
I am a dinosaur when it comes to accepting new technology. Sometimes it is due to the higher cost, other times it is because the existing stuff still work fine for me.
I have thought about the benefits of EFI. Power isn't one of the benefits though. Time and time again I have seen dyno tests where a well tuned carburetor makes the same HP with a slight loss in torque. No advantage for EFI.
The guys in cold weather locales tout the cold start advantages. I live in Northern CA where it rarely gets below 30 degrees. The Demon 850 runs okay when cold but great once I am up to operating temperature. Again, no advantage for EFI.
Smart tech guys like Rick Ehrenberg write about the more precise fuel metering and cleaner running. Now you are getting my attention. Better fuel economy on a commuter car is great but the difference between 30 mpg and 35 mpg don't impress meas much as an improvement of 9 mpg to 15. Driving an old carbureted car getting 9 mpg with a 19 gallon tank through Nevada can be nerve wracking. As cars started getting better mileage, those lonely independant gas stations on these desert highways withered away and closed down. Now that we have been restoring and driving these cars so much, there are fewer places to buy gas. A few more miles per gallon is a great benefit.
Also....Everyone here has likely torn down a classic A, LA, B or RB block. These engines were lucky to go 100,000 miles without at least a valve job. The combustion chambers get carboned up, the heads of the pistons had a thick coating of carbon too. Most of this went away once EFI was introduced. Modern engines last longer for a variety of reasons. Closer ring gaps, tighter piston clearance, electronic engine management all factor in.
The thought of having a classic 440 based engine with modern driveability is very enticing. The new cars will never sound as good as a classic car does. Catalytic converters and EPA compliant exhaust systems soften that great cackle we get from a high compression long duration cammed vintage V8. If we can integrate these advancements to add longevity and some economy toour classics, that is surely a good thing.
 
I'm not really looking for more power by going EFI, just more consistency and "driveability". If I pick up fuel economy, that's cool. I like the idea of being able to control my timing advance curve more accurately, control nitrous better, and the ease of tuning once I learn the system.
 
Yep, went with the 800 meanstreet kit. I don't plan on using nitrous or other power adders. I have a Holley blue fuel pump that goes to the fuel command center. No return line needed.
 
If you are using a dual plane intake, I would not use Throttle body injection, they have been know for bad fuel distribution causing some cyl's rich, & others lean, ether way port injection is the best way to go.
 
Ive been doing some research with all of the different packages out there and the one im leaning towards is the Holley Terminator, mainly for the updates and different tuning cabilities...
The first hurdle i have to get over is the price tag which is about the same for the Fast 2.0...
Im not going to be making anywhere near that power but I know im never satisfied...
The other choices are the Fitech or Sniper, a little more affordable.
:popcorn::popcorn::popcorn:
 
I have it on a few rides but your gonna need the 800 hp kit which I have only used the 600 hp kit
 
I have a single plane indy intake I'll be using.
I like the idea of the big fitech system with the power adder option because I'm never quite satisfied with enough power or just good enough either.

I did talk to a tech yesterday at fitech. Was asking about fuel pump options trying to see what they recommend since they don't offer a system large enough for my needs. He ended up telling me to wait til the end of the month and they are coming out with a new, in tank, fuel module that will support over 800hp for like 350 bucks! I see holley offers a similar system, for 550! The stuff is probably all made at the same place!

I'm getting excited about this, seems almost too good! Hope it's not a waste of money and time...since most things that seem too good to be true usually are...
 
F.A.S.T Sportsman XFI for me. Suposed to be good for 1200Hp NA and has NO2 compensation. Also running their distributor. My motor is kinda radical, Ported Indy -1 heads, .278/.281 @ .050 - .681/.660 Lift solid roller, Indy single plane. I will drive this on the street and the reason I went FI..

IMG_1416.JPG IMG_1418.JPG IMG_1419.JPG IMG_1420.JPG IMG_1421.JPG IMG_1422.JPG
 
If you are using a dual plane intake, I would not use Throttle body injection, they have been know for bad fuel distribution causing some cyl's rich, & others lean, ether way port injection is the best way to go.

Don't really have the option to use a single plane, because if I cut my hood anymore, it's going to buckle! Tried fitting the TF single plane and no way will it fit. So I'm using and RPM airgap manifold instead. Hopefully with the little cutout, it'll have better operating characteristics.
 
Been running Fitech for over a year now with zero issues. I also did the Tanks Inc. tank and in tank Walbro 255 pump, all new fuel line. Love it so far! Still tuning it and tinkering but it's never left me stranded.
 
WOW, what a difference! Finally got to take the car out yesterday with the meanstreet 800HP kit installed and it was a night an day difference in drivability. Easy cold start ( no having to fight with the carb to warm it up), instant throttle response (surprised me when it threw me back in the seat), and overall sounds healthier. I definitely recommend swapping over to EFI if you haven't already.
 
WOW, what a difference! Finally got to take the car out yesterday with the meanstreet 800HP kit installed and it was a night an day difference in drivability. Easy cold start ( no having to fight with the carb to warm it up), instant throttle response (surprised me when it threw me back in the seat), and overall sounds healthier. I definitely recommend swapping over to EFI if you haven't already.
Glad to hear, congrats! I'll be installing efi on my 505, still haven't decided between fitech or Holley sniper system
 
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