2003 GS300 going Aristo this fall. Help!
04-18-11, 01:26 AM
#16
I do that setup quite often. Are you going to run a standalone? That's the route to go if you're wanting to push big power. I've pushed the A650E up to 720whp on 33psi on E85 through the auto 5 speed. I can also get the car to work with the 5-speed and still get the car to pass state inspection. It's all in setting up the electronics and tuning. I would say tuning is 70% of getting the car to run properly. My cars have no check engine lights and pass state inspection with no problems. If you want to pass state inspection then you have to run the stock ecu with a "modified" piggback.
04-18-11, 09:18 PM
#18
Jeff, what system do you think will do the trick? E-Man Ultimate, Blue, AEM?
Im either going to run the PHR GT60 or the GT60-1. i know you will have the best soultion as far as what tune will work best. really not lookin to go over 20-25psi. we need to meet up jeff and figure this out
Im either going to run the PHR GT60 or the GT60-1. i know you will have the best soultion as far as what tune will work best. really not lookin to go over 20-25psi. we need to meet up jeff and figure this out
04-19-11, 06:02 PM
#19
Yea i know that car it was done by chris and farley in florida sold to a guy in maryland and you bought it. Looks good but nobody uses the eshift option thats why people dont wire it up and in japan they disable the vsc and they use the greddy fuel cut instead of the hks fcd which is the worst fcd to use.
Do you have any contact info for chris and farley? Where in FL are they?
I am in the same boat. I would like the vvti gte swap, on a 05 GS but I want to keep the e-shift.
12-10-11, 05:43 AM
#23
Just basically figure it out yourself. There are few ways, one is easier the other is harder...but I guess it's still relative to what you think is hard or not lol.
Method 1: I usually don't do this, it's more work IMO. You basically cut all the wires from the stock GE body harness, and merge it with the Aristo ECU plug and pin it all out. This obviously requires major soldering. I'm not aware of anyone that has actually done this on a 02+ GS. This method removes the stock GE ecu out of the equation and you just run the Aristo ECU in its place. With this method, there is no way to pass OBD2 emissions testing because the JDM aristo ecu uses a different communications protocol that is not compatible with American OBD testing equipment.
Method 1.5: Same as above but instead of removing the stock GE ecu keep it in there. Piggyback the Aristo ECU on top of the stock ecu and basically just let the Aristo ecu control the fuel/ignition. So this method is running twin ecu. Stock GE ecu to control most all the stock body functions and the GTE ecu strictly to run the engine. With this method, it might be possible to pass emissions but will require extensive sensor simulation and experimentation.
Method 2: This is what I usually do for a mild build. Use the GE harness and modify it and extend the plugs to various sensors on the engine. This is the easiest method for a 02+ car IMO. You retain the stock GE ecu and then run a piggyback system such as the AEM FIC or eManage Ultimate. This is the easiest method to pass OBD2 emissions testing.
Method 3: Used for higher HP builds on a GS. Same thing as method 2, use the GE harness and extend the various sensor wires to the proper locations. You must still keep the stock ECU in the loop, but you run a standalone(I prefer to use an AEM EMS which I then custom modify and wire up, some may disagree but I never really have any issues with these once they are setup properly) on top of it just to control the fuel and ignition. The rest of the stock functions are still controlled by the stock ECU. So essentially this will be a stock ECU with standalone doing strictly fuel/ignition. With this method, it may be possible to pass emissions but will require extensive sensor simulation and experimentation.
Many ways to do the swap on a 02+. I just prefer methods 2 & 3.
Method 1: I usually don't do this, it's more work IMO. You basically cut all the wires from the stock GE body harness, and merge it with the Aristo ECU plug and pin it all out. This obviously requires major soldering. I'm not aware of anyone that has actually done this on a 02+ GS. This method removes the stock GE ecu out of the equation and you just run the Aristo ECU in its place. With this method, there is no way to pass OBD2 emissions testing because the JDM aristo ecu uses a different communications protocol that is not compatible with American OBD testing equipment.
Method 1.5: Same as above but instead of removing the stock GE ecu keep it in there. Piggyback the Aristo ECU on top of the stock ecu and basically just let the Aristo ecu control the fuel/ignition. So this method is running twin ecu. Stock GE ecu to control most all the stock body functions and the GTE ecu strictly to run the engine. With this method, it might be possible to pass emissions but will require extensive sensor simulation and experimentation.
Method 2: This is what I usually do for a mild build. Use the GE harness and modify it and extend the plugs to various sensors on the engine. This is the easiest method for a 02+ car IMO. You retain the stock GE ecu and then run a piggyback system such as the AEM FIC or eManage Ultimate. This is the easiest method to pass OBD2 emissions testing.
Method 3: Used for higher HP builds on a GS. Same thing as method 2, use the GE harness and extend the various sensor wires to the proper locations. You must still keep the stock ECU in the loop, but you run a standalone(I prefer to use an AEM EMS which I then custom modify and wire up, some may disagree but I never really have any issues with these once they are setup properly) on top of it just to control the fuel and ignition. The rest of the stock functions are still controlled by the stock ECU. So essentially this will be a stock ECU with standalone doing strictly fuel/ignition. With this method, it may be possible to pass emissions but will require extensive sensor simulation and experimentation.
Many ways to do the swap on a 02+. I just prefer methods 2 & 3.
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black_gs99
GS - 2nd Gen (1998-2005)
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11-10-11 07:49 AM
