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Discussion Starter #1
Who else has one of these?



I'm running the complete original Kenne Bell system, including boost-a-pump and FMU. I'm not sure that I'm completely happy with it and was wondering who else has a similar setup, what tuning device you are using, and how do you like the results?:
 
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U jelly of my
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ah! omgomgomgomgomg i want a 2.2 on my truck......


What aren't you happy with? I'm not happy with that intake, something has to be done about that lol
 

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What year is that? I ditched the FMU and boost a pump with mine, ran a 255lph fuel pump and 42lb ford racing injectors with a maf extender. Had it tuned by a SCT dealer.
 

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I've got one and understand your reservations. The setup with MAF, FMU and KB boost a pump gets you about 80% there but mine does not deal with transitions well, especially on the freeway in OD. I have to monitor the A/F carefully to avoid detonation. Things I've learned. 1. the KB boost a pump does not work. Get yourself a 255lph pump in the tank and you will see that FMU increase the fuel pressure real fast. I'm keeping my boost a pump on the truck now simply to provide a steady voltage to the pump since it is basically a capacitor. The FMU is not really cutting it either so my solution is the get a custom tune using a Moates quarter horse, upgrade the MAF to Pro M 75MM, and swap out the injectors from 19lb to 39lb. I'm trying to get on the calendar of the tuning shop who can do the software remotely and email to me for uploading into the quarter horse. I will publish my results once I get the upgrades installed and tuned.
 

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Discussion Starter #7
Ah, so many great responses!

Its a 96 so I'm already using a MAF sensor. But yeah, FMU is not a real tuning tool. I feel that running higher fuel pressure through the small injectors is not the correct way to add more fuel. It works well enough for now but I think larger injectors and having custom fuel maps tuned on a dyno would really bring out the beast. I really wish I hadn't just sold off the Moates LC-1 kit that I had sitting around in the garage for the past two years...

Detonation is not really a problem for me unless pulling a load up a steep hill, then i just retard the timing a little with the handy adjuster inside the truck.
 

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Discussion Starter #8
I can do all the required mechanical and electrical installation work, but I'll need to find a good, reliable tuner here is the LA/OC area to set me up on a dyno and tune me for the best fuel economy and the best power. Does anyone have any recommendations?

Also, in the mean time, can you recommend a good 255lph fuel pump?
 

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aka: kemicalburns
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since your running obd-II already i would get it dyno tuned. upgrade the fuel pump and install some larger injectors. Get an upgraded MAF also.
 

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the 1st thing you need to do is clean that damn engine bay...
 

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Discussion Starter #11
After some searching it looks like people have used a Walbro 255lph (http://www.summitracing.com/parts/VPN-GSS340/) with success.

I'm assuming that I'll need to install a wide-band O2 sensor and interface, as well as some method of chipping the ECU to allow me to run custom dyno tuned maps. I'm quite familiar with doing this on Hondas, but this will be my first Ford.

I'll have to run the numbers to figure injector and MAF sensor sizing requirements based on my engine and SC dynamics. What are popular aftermarket MAF sensor brands and sizes? Where can these be purchased?

Another concern I have is that my engine seems to have a set shift point at 4000-4500 rpm. Is that a correct shift point / red line for these OHV Ford small blocks?
 

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U jelly of my
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you have an OBD II truck, you can have your ECU reflashed, no need for a chip


find a shop that tunes with SCT.... I think Racers Edge Tuning is out in california
 

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Urban Assault Bronco
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4000-4500 isnt normal. you should be able to pull minimum of 5800 on a small block. maybe thats a safety setting KB installed???
 

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Discussion Starter #14
Oh how cool. I was not aware of this. All of my experience has been on OBD-1 cars.
 

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Discussion Starter #15
Yeah, i was reading the literature on the KB system I have. They claim that by 4500 rpm with the SC, the peak power and torque have already been achieved. This may be true considering the volumetric displacement and efficiency of the supercharger itself.

I feel dumb, but I don't actually know the displacement volume of this SC. Its probably written on a tag right on the housing....
 

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FMU's are BS as are calibrated MAF to larger injectors. They can make it work but not as well as a real tune to the engine components.

I run a 90mm lightning MAF, 75mm throttle body, 42 lb. injectors, an inline BBK fuel pump, and a Tweecer tuned A9L Mustang computer for engine management on my 393W with Kenne Bell 2.2l supercharger.

 

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Yeah, i was reading the literature on the KB system I have. They claim that by 4500 rpm with the SC, the peak power and torque have already been achieved. This may be true considering the volumetric displacement and efficiency of the supercharger itself.

I feel dumb, but I don't actually know the displacement volume of this SC. Its probably written on a tag right on the housing....
the displacement is 2.2L

on my car i have a ford GT super car fuel pump and a 20a KB boost a pump with 39# injectors. its plenty of fuel for up to about 450 at the wheels.

i know that dosent help you much, im just giving you an idea how much fuel you will need for what power. of coarse my engine is only a 4.6 too
 

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if you dont wanna get too involved get a weldon fuel pressure reg and a vortec trex in line pump with 42 lb injectors with a pro m mass air. run the boost to the reg and it will automatically raise your fuel pressure as boost increases. and def get an a9l comp. you most likely wont need a custom tune with that setup depending on how much boost your running
 

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Discussion Starter #20
Why would I need to get an a9l eec if I can have a local tuner dyno tune and reflash my stock obd2 eec?
 
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