4.0 Supercharger. Where can i get one
09-24-2015, 07:27 AM
#31
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Join Date: Dec 2011
Location: PA KOTUFU!
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Year: 1998
Engine: 4.0L 162,000
Jimmy? Jimmy who? Jimmys not here. How do you crack corn? Is there a write-up or build thread here?
Back to superchargers...This isn't rocket surgery...
This is basically 2 separate projects. The mounting/mechanical part and then the tuning part.
Fitting and mounting the supercharger is a great project. Space is limited. Accessories are in the way. 1 thing leads to 3 others. Once installed and plumbed and basically 'mechanically working' you then have the tuning project.
Tuning there are 2 areas that need addressing. Timing and fuel.
Timing- if you keep it under 4 pounds boost you can probably get by with no boost timing retard. Over 4 pounds boost you will need some boost timing retard. Usually 1/2 to 1 degree of retard for each pound of boost. You could do this with a MSD BTM.
Fueling- a bit more difficult. The simplest and risky'est would be to tap the fuel rail at the schrader valve and use a fuel/nitrous solenoid valve and nozzle and a 'hobbs' switch to turn it on and just inject a set amount of fuel into the intake when you go into boost. More reliable is some sore of computer controlled fuel supplement system.
These recommendations are 'DO AT YOUR OWN RISK'. I would never use this myself. Just ideas, cheap ideas at that.
I can only recommend a well designed complete supercharger system.
I really just don't want you to have a bad result and a sour taste about superchargers.
Back to superchargers...This isn't rocket surgery...
This is basically 2 separate projects. The mounting/mechanical part and then the tuning part.
Fitting and mounting the supercharger is a great project. Space is limited. Accessories are in the way. 1 thing leads to 3 others. Once installed and plumbed and basically 'mechanically working' you then have the tuning project.
Tuning there are 2 areas that need addressing. Timing and fuel.
Timing- if you keep it under 4 pounds boost you can probably get by with no boost timing retard. Over 4 pounds boost you will need some boost timing retard. Usually 1/2 to 1 degree of retard for each pound of boost. You could do this with a MSD BTM.
Fueling- a bit more difficult. The simplest and risky'est would be to tap the fuel rail at the schrader valve and use a fuel/nitrous solenoid valve and nozzle and a 'hobbs' switch to turn it on and just inject a set amount of fuel into the intake when you go into boost. More reliable is some sore of computer controlled fuel supplement system.
These recommendations are 'DO AT YOUR OWN RISK'. I would never use this myself. Just ideas, cheap ideas at that.
I can only recommend a well designed complete supercharger system.
I really just don't want you to have a bad result and a sour taste about superchargers.
09-24-2015, 07:38 AM
#32
CF Veteran
Join Date: Sep 2010
Location: Mercer County, NJ
Posts: 12,692
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Jimmy? Jimmy who? Jimmys not here. How do you crack corn? Is there a write-up or build thread here?
Back to superchargers...This isn't rocket surgery...
This is basically 2 separate projects. The mounting/mechanical part and then the tuning part.
Fitting and mounting the supercharger is a great project. Space is limited. Accessories are in the way. 1 thing leads to 3 others. Once installed and plumbed and basically 'mechanically working' you then have the tuning project.
Tuning there are 2 areas that need addressing. Timing and fuel.
Timing- if you keep it under 4 pounds boost you can probably get by with no boost timing retard. Over 4 pounds boost you will need some boost timing retard. Usually 1/2 to 1 degree of retard for each pound of boost. You could do this with a MSD BTM.
Fueling- a bit more difficult. The simplest and risky'est would be to tap the fuel rail at the schrader valve and use a fuel/nitrous solenoid valve and nozzle and a 'hobbs' switch to turn it on and just inject a set amount of fuel into the intake when you go into boost. More reliable is some sore of computer controlled fuel supplement system.
These recommendations are 'DO AT YOUR OWN RISK'. I would never use this myself. Just ideas, cheap ideas at that.
I can only recommend a well designed complete supercharger system.
I really just don't want you to have a bad result and a sour taste about superchargers.
Back to superchargers...This isn't rocket surgery...
This is basically 2 separate projects. The mounting/mechanical part and then the tuning part.
Fitting and mounting the supercharger is a great project. Space is limited. Accessories are in the way. 1 thing leads to 3 others. Once installed and plumbed and basically 'mechanically working' you then have the tuning project.
Tuning there are 2 areas that need addressing. Timing and fuel.
Timing- if you keep it under 4 pounds boost you can probably get by with no boost timing retard. Over 4 pounds boost you will need some boost timing retard. Usually 1/2 to 1 degree of retard for each pound of boost. You could do this with a MSD BTM.
Fueling- a bit more difficult. The simplest and risky'est would be to tap the fuel rail at the schrader valve and use a fuel/nitrous solenoid valve and nozzle and a 'hobbs' switch to turn it on and just inject a set amount of fuel into the intake when you go into boost. More reliable is some sore of computer controlled fuel supplement system.
These recommendations are 'DO AT YOUR OWN RISK'. I would never use this myself. Just ideas, cheap ideas at that.
I can only recommend a well designed complete supercharger system.
I really just don't want you to have a bad result and a sour taste about superchargers.
As for the cracked corn write up. I'm working on it but its pic extensive and I know ill still get people asking, what tools do I need, is it easy, where do I get "X," (I.e. The bimmers of the world)
09-24-2015, 08:46 AM
#33
CF Veteran
Join Date: Dec 2011
Location: PA KOTUFU!
Posts: 1,777
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Year: 1998
Engine: 4.0L 162,000
'the bimmers of the world'!
That's funny, ROTFLMAO, spilled my coffee and pee'd my pants.
We need a new phrase like 'because racecar' and 'RaceJeep'.
- 'just bimmer it' or 'bimmerit' or 'because bimmerit'
- 'don't be a bimmer'
- 'bimmer guy'
- 'bimmer what'
- 'I like bimmer' (no offense bro)
That's funny, ROTFLMAO, spilled my coffee and pee'd my pants.
We need a new phrase like 'because racecar' and 'RaceJeep'.
- 'just bimmer it' or 'bimmerit' or 'because bimmerit'
- 'don't be a bimmer'
- 'bimmer guy'
- 'bimmer what'
- 'I like bimmer' (no offense bro)
09-24-2015, 08:57 AM
#34
Senior Member
Thread Starter
Join Date: Nov 2014
Location: Lennox/Sioux Falls South Dakota
Posts: 892
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Received 4 Likes
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4 Posts
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0 liter inline 6
Jimmy? Jimmy who? Jimmys not here. How do you crack corn? Is there a write-up or build thread here?
Back to superchargers...This isn't rocket surgery...
This is basically 2 separate projects. The mounting/mechanical part and then the tuning part.
Fitting and mounting the supercharger is a great project. Space is limited. Accessories are in the way. 1 thing leads to 3 others. Once installed and plumbed and basically 'mechanically working' you then have the tuning project.
Tuning there are 2 areas that need addressing. Timing and fuel.
Timing- if you keep it under 4 pounds boost you can probably get by with no boost timing retard. Over 4 pounds boost you will need some boost timing retard. Usually 1/2 to 1 degree of retard for each pound of boost. You could do this with a MSD BTM.
Fueling- a bit more difficult. The simplest and risky'est would be to tap the fuel rail at the schrader valve and use a fuel/nitrous solenoid valve and nozzle and a 'hobbs' switch to turn it on and just inject a set amount of fuel into the intake when you go into boost. More reliable is some sore of computer controlled fuel supplement system.
These recommendations are 'DO AT YOUR OWN RISK'. I would never use this myself. Just ideas, cheap ideas at that.
I can only recommend a well designed complete supercharger system.
I really just don't want you to have a bad result and a sour taste about superchargers.
Back to superchargers...This isn't rocket surgery...
This is basically 2 separate projects. The mounting/mechanical part and then the tuning part.
Fitting and mounting the supercharger is a great project. Space is limited. Accessories are in the way. 1 thing leads to 3 others. Once installed and plumbed and basically 'mechanically working' you then have the tuning project.
Tuning there are 2 areas that need addressing. Timing and fuel.
Timing- if you keep it under 4 pounds boost you can probably get by with no boost timing retard. Over 4 pounds boost you will need some boost timing retard. Usually 1/2 to 1 degree of retard for each pound of boost. You could do this with a MSD BTM.
Fueling- a bit more difficult. The simplest and risky'est would be to tap the fuel rail at the schrader valve and use a fuel/nitrous solenoid valve and nozzle and a 'hobbs' switch to turn it on and just inject a set amount of fuel into the intake when you go into boost. More reliable is some sore of computer controlled fuel supplement system.
These recommendations are 'DO AT YOUR OWN RISK'. I would never use this myself. Just ideas, cheap ideas at that.
I can only recommend a well designed complete supercharger system.
I really just don't want you to have a bad result and a sour taste about superchargers.
09-24-2015, 10:57 AM
#40
CF Veteran
Aem F/IC 30-1913 will perform all tuning functions for boost and keep emission compliance. It can be used on obd1 but keep in mind you will need a auto scanner that can read live data on obd1 vehicles.
09-24-2015, 11:54 AM
#41
CF Veteran
Join Date: Dec 2011
Location: PA KOTUFU!
Posts: 1,777
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Year: 1998
Engine: 4.0L 162,000
and CoolingMist Meth Injector ($200) to keep the charge air temps reasonable
$390 + $150 + $200 = Gets expensive fast
Just spent that bonus check real fast.
09-24-2015, 12:23 PM
#42
Senior Member
Thread Starter
Join Date: Nov 2014
Location: Lennox/Sioux Falls South Dakota
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Year: 1996
Model: Cherokee (XJ)
Engine: 4.0 liter inline 6
Yea haha spendy. im looking at 4-5 pounds of boost for starters until i get my engine rebuilt next summer. it was either supercharger or lockers.
Last edited by CherokeeHoonigan; 09-24-2015 at 12:25 PM.
09-24-2015, 12:32 PM
#43
CF Veteran
Fast, reliable, cheap pick any 2 right? There are pros and cons to using the fic. For the versatility it can tune for I think it is priced right where it should be.
