Auto Trans power reduction
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Joined: Jul 1999
Posts: 12,212
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Auto Trans power reduction
OK....We all know that autos rob more HP the manuals trans. That is a given. Everybody quotes the estimated % that is widely accepted. But has anyone ever dyno'd before & after, with no other mods? I'd like to hear from more than just 1 person, to get a broader sample & compare #s between people.
Anybody?
Anybody?
Joined: Jul 2000
Posts: 6,521
Likes: 91
From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: Auto Trans power reduction
It's not a straight percentage.
Auto tune cars can take more timing advance so it wouldn't be an apples to apples comparison.
Just food for thought.
Auto tune cars can take more timing advance so it wouldn't be an apples to apples comparison.
Just food for thought.
Thread Starter
Banned
iTrader: (12)
Joined: Jul 1999
Posts: 12,212
Likes: 13
From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Auto Trans power reduction
Yes it is (can be). Just swapping trannies & not changing the PROM or tuning. What would someone get?
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