twin charge ion questions
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twin charge ion questions
when you twin charge to you set the turbo and supercharger at the same number psi ,and do you need two boost gauges , and has any one got some numbers on the hp and torque after you have done this please let me know thank you
bump for some help
bump for some help
Last edited by loudestwine08; 11-24-2007 at 08:04 PM. Reason: Automerged Doublepost
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no, you can't set both supercharger and turbo to the same psi
there's an Ion redline that made the setup
M62 supercharger with 3.8 pulley and GT3071 turbo@ 5 psi.
Overall car yield 332WHP@ 20psi
there's an Ion redline that made the setup
M62 supercharger with 3.8 pulley and GT3071 turbo@ 5 psi.
Overall car yield 332WHP@ 20psi
Last edited by jgarciarivera; 11-24-2007 at 08:09 PM. Reason: Automerged Doublepost
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Yes, here's the video
http://videos.streetfire.net/video/8...C296E45939.htm
Actually he used a GT3076.
Equations
Total pressure = [absolute pressure + turbo boost (psi)] * PR (pressure ratio of sc) = Boost pressure (boost you see @ gauge) - absolute pressure
Ex.
Total pressure = [14.7 psi + 4 psi]* 2 = 37.4@vaccum
boost gauge pressure = Total pressure - absolute pressure = 37.4 psi -14.7 psi = 22.7 psi
A PR of 2 I think can not be achieved with the stock pulley, it needs to be larger, such as the 3.8".
If you used the stock pulley, the turbo psi should be at 3 psi.
Boost gauge pressure (with turbo @ 3 psi) = 20.7
I doing research with this, I'm going with this setup soon. I will be using the stock pulley, and I'm looking for a turbo, and doing calculations, also, I will switched to 60's and as you see in my sig, I have a return-style fuel system, which will work better either if I use both turbo and supercharger, or turbo alone.
http://videos.streetfire.net/video/8...C296E45939.htm
Actually he used a GT3076.
Equations
Total pressure = [absolute pressure + turbo boost (psi)] * PR (pressure ratio of sc) = Boost pressure (boost you see @ gauge) - absolute pressure
Ex.
Total pressure = [14.7 psi + 4 psi]* 2 = 37.4@vaccum
boost gauge pressure = Total pressure - absolute pressure = 37.4 psi -14.7 psi = 22.7 psi
A PR of 2 I think can not be achieved with the stock pulley, it needs to be larger, such as the 3.8".
If you used the stock pulley, the turbo psi should be at 3 psi.
Boost gauge pressure (with turbo @ 3 psi) = 20.7
I doing research with this, I'm going with this setup soon. I will be using the stock pulley, and I'm looking for a turbo, and doing calculations, also, I will switched to 60's and as you see in my sig, I have a return-style fuel system, which will work better either if I use both turbo and supercharger, or turbo alone.
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Return-style fuel system, depends what is expensive for you
Walbro GSS342 - $125
Aeromotive regulator - $155
Fittings and fuel lines - $120
Labor - depends
Gasoline filter - $68 (1 input, 1 output)
Walbro GSS342 - $125
Aeromotive regulator - $155
Fittings and fuel lines - $120
Labor - depends
Gasoline filter - $68 (1 input, 1 output)
Last edited by jgarciarivera; 11-25-2007 at 04:44 PM.
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I was hoping to start the project on december, but right now I need brake pads
Any performance shop with experienced mechanics. Get a quote first.
Any performance shop with experienced mechanics. Get a quote first.
Last edited by jgarciarivera; 11-24-2007 at 08:29 PM. Reason: Automerged Doublepost
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Still I haven't start the project. Hopefully, after getting the brake pads.
Why would you convert to a Return Fuel System? To raise pressure for a turbo application?
To prevent starvation of the fuel injectors to the farthest of the fuel rail where the fuel lines enter. On a return fuel system, there is a constant fuel pressure inside the rail which means that the fuel injectors are basically getting a equal amount of fuel. On a return-less fuel system, the farthest injectors might not get as much fuel as say the closer ones would.
This can directly affect the performance of that one cylinder (I believe #4). A wideband would show your a/f overall, so if you richen, you'd be richening your total a/f but that doesn't mean that #4 injector would be getting the equal amount of fuel and it could cause that one cylinder to detonate from being lean.
The SRT-4 guys do this change when they are looking into a big horsepower application (I believe they suggest anything over 400 HP that you do this).
Post taken from NJHK
Why would you convert to a Return Fuel System? To raise pressure for a turbo application?
To prevent starvation of the fuel injectors to the farthest of the fuel rail where the fuel lines enter. On a return fuel system, there is a constant fuel pressure inside the rail which means that the fuel injectors are basically getting a equal amount of fuel. On a return-less fuel system, the farthest injectors might not get as much fuel as say the closer ones would.
This can directly affect the performance of that one cylinder (I believe #4). A wideband would show your a/f overall, so if you richen, you'd be richening your total a/f but that doesn't mean that #4 injector would be getting the equal amount of fuel and it could cause that one cylinder to detonate from being lean.
The SRT-4 guys do this change when they are looking into a big horsepower application (I believe they suggest anything over 400 HP that you do this).
Post taken from NJHK
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Parts needed
1. Walbro GSS342 - long than stock fuel pump
2. Aeromotive A1000-6 Part# 13109 regulates from 30-70psi
3. Fuel lines (20 -25ft)
4. fittings
Step 1
Take out the tank. Several bolts need to be unscrewed. Try to have an almost empty tank. It'll weight less.
Step 2
Take out the module inside the tank. Be careful to take out the cap where the fuel pump is located. It has like 4 clips. Use a philips screw driver.
Step 3
Take the fuel pump out. Take out the in-tank regulator.
Step 4
Insert Walbro GSS342. Warning, this fuel pump does not fit in the location where to stock pump is located. My mechanic tied firmly with 3 straps.
Step 5
Replace one of the fuel lines that goes into the tank with a "breeder" fuel line. This one goes from the tank to the bottom part of the regulator. You gotta be extremely careful here, try not to break the plastic gas input.
Step 6
Installed regulator. You'll see how mine is installed tomorrow.
Step 7
Here you got two choices. Either buy a 2002 Ecotec fuel rail, which is already tapped, or tapped the stock fuel rail, that's what I did. Connect a fuel line from the side of the regulator to where the fuel rail is tapped. You'll know where to tapped because the fuel rail the LSJ uses is the same as the cavalier except the LSJ's is blocked. Drill and connect fitting.
Step 8 Verify for leaks and connect vacuum hose. You have to get a T, cut one of the vacuum lines and install.
Step 9 Start the car. Do not start it right way. Wait until the pump fills the fuel line. You'll here a small whine and when the fuel pump stops. Remember, you have to do this everytime you start the car. The regulator does not hold gas in the lines like the intank regulator.
Step 10 Use a wideband to setup the fuel pressure. Set the pressure. Try to set it for 40-41 psi. At vacuum should be 50-51psi.
I'll have photos tomorrow.
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I know my car runs better with the system installed. The first time I dyno made 224WHP without the fujita CAI and return-system. After that, the second dyno @4th gear, 235 WHP with the fujita CAI and better injector duty cycle, AFR @ 10.8 right now. My car was lean, and was gas tuned at the dyno with the AEM regulator. So I can say yes, you should gain something.
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Step 9 Start the car. Do not start it right way. Wait until the pump fills the fuel line. You'll here a small whine and when the fuel pump stops. Remember, you have to do this everytime you start the car. The regulator does not hold gas in the lines like the intank regulator.
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going to buy now batteries, camera is dead.
Right its annoying. I'm looking to a solution for that problem. Maybe using the same type of in-tank valve to hold the gas in the line. I'm still looking
Some photos
I forgot to mention that you need to change the gasoline filter. The stock is useless after the conversion. You'll need a 1 input, 1 output gas filter. You should pay attention to the flow direction. It cost me $68.
Last edited by jgarciarivera; 11-25-2007 at 04:41 PM. Reason: Automerged Doublepost