Project Excursion Kenne Bell Install
Posting Guru
Joined: May 2014
Posts: 1,072
Likes: 0
From: Dustbowl, NV
ABSOLUTELY! 
Some say 'naturally aspirated' is where it's at...
I say 'UN natural' is best!
Then there's 'Injection is nice, but I'd rather be Blown...
Some say 'naturally aspirated' is where it's at...
I say 'UN natural' is best!
Then there's 'Injection is nice, but I'd rather be Blown...
Thread Starter
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Fleet Mechanic
Joined: Mar 2013
Posts: 1,576
Likes: 41
From: Wyoming
Well, most parts and pieces are ordered.
Stock fuel pump is a 121 lph unit, and I'm not comfortable with that. Walbro has a replacement unit that pushes 182 lph at 12 volts aginst 45 psi system pressure. Part number TCA908. They have a TCA908HP that pushes 255 lph at 13VDC and 43 psi but I think that may over run fpr. In all honesty the 182 lph unit is probably the same as the 255 unit....I bet the non HP 908 at 13 volts puts out 255 lph.
I will install the boost a pump and set it to 13 VDC so the pump has a good constant supply of voltage. I will tinker with it to make sure it will not over run stock fpr.
24 lb mustang injectors are in mail.
Email tune coming from VMP Performance.
VMP Custom E-Mail Tune (all Ford Vehicles) Level 3
Cost is $700 and includes a SCT X4 handheld.
Stock fuel pump is a 121 lph unit, and I'm not comfortable with that. Walbro has a replacement unit that pushes 182 lph at 12 volts aginst 45 psi system pressure. Part number TCA908. They have a TCA908HP that pushes 255 lph at 13VDC and 43 psi but I think that may over run fpr. In all honesty the 182 lph unit is probably the same as the 255 unit....I bet the non HP 908 at 13 volts puts out 255 lph.
I will install the boost a pump and set it to 13 VDC so the pump has a good constant supply of voltage. I will tinker with it to make sure it will not over run stock fpr.
24 lb mustang injectors are in mail.
Email tune coming from VMP Performance.
VMP Custom E-Mail Tune (all Ford Vehicles) Level 3
Cost is $700 and includes a SCT X4 handheld.
Logistics Pro
Joined: Jan 2014
Posts: 3,595
Likes: 17
Wow, 24lb injectors? Seems lower than I was expecting - we used to drop those into the 4.0 in Jeeps for more power. Just kind of expected more fuel demand for a 6.8 and four more cylinders I suppose.
Very interested in seeing how this develops and comes along.
No plans on swapping the pulley for more boost to compensate for your altitude losses?
Very interested in seeing how this develops and comes along.
No plans on swapping the pulley for more boost to compensate for your altitude losses?
Thread Starter
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Fleet Mechanic
Joined: Mar 2013
Posts: 1,576
Likes: 41
From: Wyoming
400 hp with 10 24 lb injectors, max duty cycle 90%.
Can't imagine I would need more as I doubt I will be close to 400 hp at my elevation. Plus it would rarely see 4000 rpm, so I think I'm safe.
Nope no need for more boost, 6 psi is sufficient to compensate for my elevation losses.
Oem 310 hp at crank is probably 250 hp at my elevation. So if supercharger gets me to 350 hp at crank I would be happy.
Can't imagine I would need more as I doubt I will be close to 400 hp at my elevation. Plus it would rarely see 4000 rpm, so I think I'm safe.
Nope no need for more boost, 6 psi is sufficient to compensate for my elevation losses.
Oem 310 hp at crank is probably 250 hp at my elevation. So if supercharger gets me to 350 hp at crank I would be happy.
Thread Starter
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Fleet Mechanic
Joined: Mar 2013
Posts: 1,576
Likes: 41
From: Wyoming
Dug into the install today.
Intake manifold is off, and lower KB plenum is on. Starting assembly phase. After alot of cleaning.
Exchanged the 24 lb injectors for ford racing 30 pounders.
Just a note for the guys and gals that have oil usage issues. My excursion does not use a drop of oil in 3000 miles but my lower plenum had about 1/8" of oil in bottom of it. Can't imagine how much oil my other excursions plenum has in it. If it gets too full I could see some major issues with air flow and maybe lots of oil getting into cylinders.
After seeing this I will be taking upper TB plenum off to look down into lower plenum.... and maybe sucking out several quarts of oil.
Intake manifold is off, and lower KB plenum is on. Starting assembly phase. After alot of cleaning.
Exchanged the 24 lb injectors for ford racing 30 pounders.
Just a note for the guys and gals that have oil usage issues. My excursion does not use a drop of oil in 3000 miles but my lower plenum had about 1/8" of oil in bottom of it. Can't imagine how much oil my other excursions plenum has in it. If it gets too full I could see some major issues with air flow and maybe lots of oil getting into cylinders.
After seeing this I will be taking upper TB plenum off to look down into lower plenum.... and maybe sucking out several quarts of oil.
Laughing Gas
Joined: Dec 2006
Posts: 1,008
Likes: 5
I drove a rental car up Pike's Peak in Colorado, Going from 5000 ft to 15000 ft in a few miles and one drive cycle really messed with the car, you could feel it losing power.
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Joined: May 2004
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From: Central Coast of CA
The first was the steep drop-off on one side of the road, the second was how dogged and weak the car became the higher up we went, and the third was how quickly I lost my breath at the top whenever I ran, and how long it took to get back.
This was back when everything was carbureted, with the carb adjusted for sea level.
Stewart
Thread Starter
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Fleet Mechanic
Joined: Mar 2013
Posts: 1,576
Likes: 41
From: Wyoming
Waiting on injectors to show up.
Mocked up supercharger on work bench.
Changing plugs,cop, or injectors on drivers side will require removal of supercharger. Yuck.
I can install the kit without injectors and run system with OEM injectors and computer. The kits bypass device has a lock out to bypass supercharger and run stock.
Not going to do that, just going to wait for all the parts. I have lots of work to do installing the LC1 WBO2.
Pictures of current configuration tomorrow.
Mocked up supercharger on work bench.
Changing plugs,cop, or injectors on drivers side will require removal of supercharger. Yuck.
I can install the kit without injectors and run system with OEM injectors and computer. The kits bypass device has a lock out to bypass supercharger and run stock.
Not going to do that, just going to wait for all the parts. I have lots of work to do installing the LC1 WBO2.
Pictures of current configuration tomorrow.
Senior User
Joined: Feb 2016
Posts: 261
Likes: 14
From: Colorado
I have never installed a ken belle, last truck i super charged was my 3/4 ton 8.1 liter chevy.
We used a high flow pump, a set of high flow marine injectors, the blower and tuned the truck on a dyno to let the factory computer run everything.
Why does the kenne belle require you to use all the extra electronic BS
We used a high flow pump, a set of high flow marine injectors, the blower and tuned the truck on a dyno to let the factory computer run everything.
Why does the kenne belle require you to use all the extra electronic BS
Thread Starter
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Fleet Mechanic
Joined: Mar 2013
Posts: 1,576
Likes: 41
From: Wyoming
The "kit" I have does not have lots of electronics.
Only item is a boost a pump for people who don't want to put in a higher flowing pump.
I opted for a higher flowing pump, and if it leans out I will install the boost a pump.
Since I am 4 hours away from a shop tuner, I opted for a email tune. That requires a WBO2 to data log AF ratios while at WOT. Than a new tune is built to that data.
Only item is a boost a pump for people who don't want to put in a higher flowing pump.
I opted for a higher flowing pump, and if it leans out I will install the boost a pump.
Since I am 4 hours away from a shop tuner, I opted for a email tune. That requires a WBO2 to data log AF ratios while at WOT. Than a new tune is built to that data.
Laughing Gas
Joined: Dec 2006
Posts: 1,008
Likes: 5
I have never installed a ken belle, last truck i super charged was my 3/4 ton 8.1 liter chevy.
We used a high flow pump, a set of high flow marine injectors, the blower and tuned the truck on a dyno to let the factory computer run everything.
Why does the kenne belle require you to use all the extra electronic BS
We used a high flow pump, a set of high flow marine injectors, the blower and tuned the truck on a dyno to let the factory computer run everything.
Why does the kenne belle require you to use all the extra electronic BS
Factory O2 sensors are usually geared towards economy and they really only tell you when your air/fuel ratio is around 14.7:1, Too Rich or Too Lean. It's kinda like the idiot light for your alternator or oil pressure light.
A Wideband O2 will give you a more accurate air/fuel ratio. It's more along the lines of having an actual mechanical oil pressure gauge telling you PSI or volt meter on your charging system.
