lb9 auto and manual motor difference
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From: Wentzville Mo
Car: 89 325is, 91 z28
Engine: 2.5l 6, l98
Transmission: t56
Axle/Gears: 3:42
lb9 auto and manual motor difference
I'm searching for a 5 speed lb9 car but a clean auto popped up and was curious is there a difference in the motor like internally i noticed there was a 35 rated hp difference. was curious to what the difference is? thanks.
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From: Mentone, CA
Car: 91 Z28
Engine: 355
Transmission: 5 speed
Axle/Gears: 10 bolt 3.73's
Re: lb9 auto and manual motor difference
What year is the car your looking at? The motor difference was usually the cam, but also dual cats boosted power output.
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Member
iTrader: (8)
Joined: Mar 2007
Posts: 188
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From: Wentzville Mo
Car: 89 325is, 91 z28
Engine: 2.5l 6, l98
Transmission: t56
Axle/Gears: 3:42
Re: lb9 auto and manual motor difference
does the fact thats its an automatic effect it at all. I dont know for camaros but on bimmers the autos put a huge loss on hp.
Joined: Dec 2001
Posts: 9,946
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: lb9 auto and manual motor difference
In '89 the auto LB9 got the LO3 cam and the manual LB9 had the L98 cam. The dual cats were only available on T-5 equipped LB9's. Then, there's the gear ratios.
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Joined: Aug 2006
Posts: 35
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From: BC
Car: 1986 T/a
Engine: 5litre TPI
Transmission: T-5 5speed
Axle/Gears: 3.42 1999sscamaro torsen lsd
Re: lb9 auto and manual motor difference
the loss on bmws isnt in the motor its just the transmission difference, alot of wasted energy in the auto transmission vs standard. as far as i know... also gm made the autos for bmw for awhile............ .. .... .............
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