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Location:
brisvegas
Registered:
August 2004
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4agze ecu and injectors on NA setup?
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Wed, 07 September 2005 01:45
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one of my mates is doing a 4age transplant, and is shortly after doing a 4agte on it..can he run the full 4agze map sensor ecu/wiring injectors etc, on the NA motor, and not run mega ritch?to my understanding, as long as the map sensor doesn't see boost, the injectors won't go crazy rich?
Matty
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4agze ecu and injectors on NA setup?
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Wed, 07 September 2005 02:33
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yeah it will work... but the ignition timing wont be desirable because the compression ratio is different.
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Location:
brisvegas
Registered:
August 2004
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Re: 4agze ecu and injectors on NA setup?
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Wed, 07 September 2005 02:35
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a 12mm spanner can fix that a bit  thanks for the quick reply!
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4agze ecu and injectors on NA setup?
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Wed, 07 September 2005 13:40
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i meant more that the ignition timing CURVE will be bogus.... especially once you start adding boost.
Simply adjusting the timing via the dissy/CAS will move that curve up or down accordingly.
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Location:
brisvegas
Registered:
August 2004
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Re: 4agze ecu and injectors on NA setup?
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Thu, 08 September 2005 04:28
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ok..so if i were to set the base timing at 25 deg BTDC (as my old 4age was) your saying that the ecu will have a bad curve? how bad is bogus?
i don't know if i'm making sense!?
as long as the thing doesn't run mega rich, and the timing is similar thats fine..i expected a few problems anyway..
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: 4agze ecu and injectors on NA setup?
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Thu, 08 September 2005 07:42
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you should seek out feral4mr2 if you want to know how to turbo a 4age with the stock gze computer
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Location:
brisvegas
Registered:
August 2004
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Re: 4agze ecu and injectors on NA setup?
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Thu, 08 September 2005 21:25
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| 4agte wrote on Thu, 08 September 2005 17:42 |
you should seek out feral4mr2 if you want to know how to turbo a 4age with the stock gze computer
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read the post again champ..i know how a turbo will go with the gze ecu - good..but the question that is repeated above is will it run ok on an NA motor..as it's going to be run NA for a while..then another motor were building will be put in turbo..
Matty
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Location:
Toronto, Downtown
Registered:
September 2004
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Location:
brisvegas
Registered:
August 2004
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Re: 4agze ecu and injectors on NA setup?
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Fri, 09 September 2005 02:33
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yes, thats what my mate wants to do..i have tried to just get him to put an na 100kw ECU in..and just plug the GZE ecu in later..once the turbo is on..but i can't find a 100kw ecu
so yeh..run an NA motor on gze injectors/harness/ecu, i know that i will have to put the knock sensor into the block..but WITZL said that the timing curve will be bogus for an NA car..
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 4agze ecu and injectors on NA setup?
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Fri, 09 September 2005 02:43
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it will probably run, but not as well as it could.
if you have a motor without SC/Turbo, but it has the same compression as a stock GZE, then it will run about as well as the GZE does with no SC.. sicne that's what it is.
fuel should be ok because all you are doing is running a GZE with the SC offf, as opposed to running a GZE ECU on an NA car.. if you understand what i mean...
if it is a stopgap, why run the motor without turbo at all? why not wait?
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Location:
brisvegas
Registered:
August 2004
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Re: 4agze ecu and injectors on NA setup?
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Fri, 09 September 2005 02:55
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it's for a mate..he has just gone completely arse about with doing the conversion..has bought a complete JDM bigport motor, aside from ecu/wiring..and he has had a 7MGTE CT26 fetish for about 2 years now..after realising that putting that big arse turbo on the bigport motor isn't the best idea..he bought my GZE off me, and will use the NA 4age as is..with all the GZE ecu/wiring, as he doesn't have any NA ecu or wiring..and doesn't want to get one, because he would have to change the wiring around for the new turbo motor..he half rebuilt the bigport motor, and is in the mean time going to run with that..and rebuild the GZE bottom end, and put that in with the turbo..
personally i think he has done it all wrong..but yeh..lucky it's not me!
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: 4agze ecu and injectors on NA setup?
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Fri, 09 September 2005 03:01
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i would think he is better off installing an aftermarket ecu on the 4age then remapping it to suit the gze that way he dosent have a car that runs like poo and when he finally gets his shit together with the turbo he dosent have to be restricted by the gze ecu and afm anyways thats what id do
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Location:
brisvegas
Registered:
August 2004
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Re: 4agze ecu and injectors on NA setup?
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Fri, 09 September 2005 04:19
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it's a map sensored GZE ecu..as mentioned in the first post..  thanks for your input though..
will the GZE ecu retard too much at full throttle? (zero manifold vaccume) i thought that once the VSV? (i think) detects less than 8hg of vaccume it engages the S/C..and will adjust the timing a little..any thoughts??
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Location:
Rosanna, Melb
Registered:
June 2002
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Re: 4agze ecu and injectors on NA setup?
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Fri, 09 September 2005 04:38
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It'll be fine, the only significant difference is the CR. Sure, the ignition timing may not be great, but it should work and putt round town no worries.
However on the details of exactly how it will run I feel no-one really knows and you'll just have to wing it and see.
Hen
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: 4agze ecu and injectors on NA setup?
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Fri, 09 September 2005 05:31
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| drift86levin wrote on Fri, 09 September 2005 14:19 |
it's a map sensored GZE ecu..as mentioned in the first post.. thanks for your input though..
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sorry missed that just pointing out that the standard ecu will be a hinderence with a big turbo
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Location:
brisvegas
Registered:
August 2004
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Re: 4agze ecu and injectors on NA setup?
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Fri, 09 September 2005 06:19
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yeh, Hen good to hear from you again..havn't spoken since the QR drift nationals..
thanks for all the replies guys, i'll just wing it and see how she goes! not my car after all he he he..
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Location:
Melbourne
Registered:
October 2004
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Re: 4agze ecu and injectors on NA setup?
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Fri, 16 September 2005 22:56
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just out of interest, if you ran a small turbo on this engine without much boost, any idea on the results (not talking about pistons melting etc)? Or is it something you would not even consider without lowering the compression ratio?
what options are there for lowering c/r without changing pistons (i'm thinking thick headgasket, tell me why this is a good or bad idea).
Thanks!
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Location:
Rosanna, Melb
Registered:
June 2002
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Re: 4agze ecu and injectors on NA setup?
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Sun, 18 September 2005 08:22
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Its been done before, low boost on a stock GE. It may work with the stock ZE computer, though I'd strongly recommend aftermarket. With a good tune it should be ok, since the GE 9.4(off the top of my head) CR isn't that much more than the late ZE 8.9CR.
But then it doesn't really stay a budget conversion. My opinion is do it properly and save the turbo until all the other systems are upgraded to handle it.
Hen
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