32v in an 03 GT

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voltron
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32v in an 03 GT

Post by voltron » Wed Apr 15, 2020 6:13 pm

So I have an 03 GT that i put a 98 cobra drivetrain in. I have the ecu and engine harness and wondered if the ecu will bolt directly in and run it?

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Re: 32v in an 03 GT

Post by MadCow » Fri Apr 17, 2020 4:57 pm

I don't really know the full answer, but PATS anti theft can be an obstacle on some swaps.
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Re: 32v in an 03 GT

Post by voltron » Sun Apr 19, 2020 9:11 am

I don't think PATS will play a role since I'm using the 98 ecu. I have a 97 instrument cluster if it does cause an issue

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Re: 32v in an 03 GT

Post by 1slow64 » Sun Apr 19, 2020 7:56 pm

voltron wrote:
Sun Apr 19, 2020 9:11 am
I don't think PATS will play a role since I'm using the 98 ecu. I have a 97 instrument cluster if it does cause an issue
It most likely will if you don't use the correct key. The key is read and checked with the instrument cluster and ecu if I remember correctly.
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Re: 32v in an 03 GT

Post by CMcCarthy » Thu Apr 23, 2020 11:13 am

My homie did this swap back in like 05 and he just used the complete 03 electronics to control the Cobra engine. He just flashed the ECU to raise the rev limit (and obviously tune for more power). Now he used a 99 engine, so you would presumably need to convert to coil on plug using 99-04 valve covers and coil packs. The good news there is that later model lincoln front drive cars with the 32V 4.6 and COP should work as donors and be easier to find.

Since your 98 engine has the variable intake butterfly horse shit, you'll either need to eliminate that or just control it with an MSD RPM switch. The 03 ECU can't control it.
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Re: 32v in an 03 GT

Post by voltron » Sun Apr 26, 2020 2:44 pm

I have the entire harness from the 98.
And the engine already has the mid rpm butterfly delete plates. I'm gonna see how it goes with the tuned 98 ecu
I have a 95 donor car and I might just swap the inst cluster and key and tumbler.

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Re: 32v in an 03 GT

Post by CMcCarthy » Sun Apr 26, 2020 10:43 pm

Did you buy my old motor and trans (and harness) from Tony Swaim by any chance?
-Charles
97_ek wrote:Kill it with fire. Honda sux. Nobody cares about going fast around the ring. I'd rather have 700hp in a boat. Murica. Carry on

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Re: 32v in an 03 GT

Post by vehicular » Mon Apr 27, 2020 11:43 am

voltron wrote:
Sun Apr 26, 2020 2:44 pm
mid rpm butterfly delete plates.

Those butterflies are an actual performance improvement on that motor.

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Re: 32v in an 03 GT

Post by Hodgdon Extreme » Mon Apr 27, 2020 3:14 pm

vehicular wrote:
Mon Apr 27, 2020 11:43 am
voltron wrote:
Sun Apr 26, 2020 2:44 pm
mid rpm butterfly delete plates.

Those butterflies are an actual performance improvement on that motor.
You mean 281 cubic inches can't make use of 300cc intake ports below 6000rpm??

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Re: 32v in an 03 GT

Post by CMcCarthy » Tue Apr 28, 2020 1:15 pm

They are a driveability improvement, not a performance improvement. They make more power and are quicker at the strip without them, but not having them makes for a gutless turd when tooting around on the street. 4.56 or 4.88 gears help tremendously with this issue.
-Charles
97_ek wrote:Kill it with fire. Honda sux. Nobody cares about going fast around the ring. I'd rather have 700hp in a boat. Murica. Carry on

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Re: 32v in an 03 GT

Post by voltron » Wed May 13, 2020 8:54 pm

CMcCarthy wrote:
Sun Apr 26, 2020 10:43 pm
Did you buy my old motor and trans (and harness) from Tony Swaim by any chance?
I didn't. I bought this one from Brandon Anders.

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Re: 32v in an 03 GT

Post by voltron » Wed May 13, 2020 8:55 pm

vehicular wrote:
Mon Apr 27, 2020 11:43 am
voltron wrote:
Sun Apr 26, 2020 2:44 pm
mid rpm butterfly delete plates.

Those butterflies are an actual performance improvement on that motor.
these turbo's don't care.

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Re: 32v in an 03 GT

Post by vehicular » Thu May 14, 2020 8:46 am

voltron wrote:
Wed May 13, 2020 8:55 pm
vehicular wrote:
Mon Apr 27, 2020 11:43 am
voltron wrote:
Sun Apr 26, 2020 2:44 pm
mid rpm butterfly delete plates.

Those butterflies are an actual performance improvement on that motor.
these turbo's don't care.
You're right. Turbos don't care at all about charge velocity or cylinder pressure at low RPM. :rock:

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Re: 32v in an 03 GT

Post by MadCow » Thu May 14, 2020 11:22 am

voltron wrote:
Wed May 13, 2020 8:55 pm
these turbo's don't care.
Do you have a build thread? Any details on the project?
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Re: 32v in an 03 GT

Post by voltron » Thu May 14, 2020 6:40 pm

Nah. This is something I'm doing on the side for a friend of mine.

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