3.9 turbo vs tpi
04-24-2011, 05:02 PM
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Car: 92 camaro rs
Engine: 3.4v6 sc
Transmission: 700r4
Axle/Gears: 9 bolt 3.73s
3.9 turbo vs tpi
ok this is a going thing with me i know but what would be the fastist swap in to my car and cheapis to get say 500rwhp in the end i want to keep the ac cuse this is a daly driver and with ok mpg say 15 highway
04-24-2011, 11:43 PM
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Car: '85 maro
Engine: In the works...
Transmission: TH700 R4
Axle/Gears: 3.73 posi
Re: 3.9 turbo vs tpi
3500 would be better. The 3900 has a variable plenum and vvt so you would have to find a way to disable both. I'd say grab a salvaged 3500, put a big *** turbo on and let 'er rip!
04-25-2011, 08:19 AM
#3
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Re: 3.9 turbo vs tpi
I don't get why everyone says that about swapping a 3900, I imagine it would be no harder to just retain those advancements by swapping the ecm.
04-25-2011, 06:55 PM
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Car: 2006 Cobalt SS/SC
Engine: LSJ
Transmission: F35 MU3
Axle/Gears: 4.05
04-26-2011, 05:30 PM
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Car: '85 maro
Engine: In the works...
Transmission: TH700 R4
Axle/Gears: 3.73 posi
Re: 3.9 turbo vs tpi
It's not that simple either. There's multiple computers the ecm expects to communicate with. BCM, airbag module, instrumentation ect.
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