1981 928 - can you tell me about it?
12-12-2008, 03:38 PM
#211
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http://www.928motorsports.com/928sc.html
# 5.0 Liter 16v V-8 with O-ringed block and steel sleeves by 928 Motorsports
# 928 Motorsports Stage 2 Supercharger with performance impeller
# Engine produces 467 HP, 482 Ft-Lb's Torque
# 5.0 Liter 16v V-8 with O-ringed block and steel sleeves by 928 Motorsports
# 928 Motorsports Stage 2 Supercharger with performance impeller
# Engine produces 467 HP, 482 Ft-Lb's Torque
12-12-2008, 03:52 PM
#212
Does anyone know if I can retrofit 1995 GTS fuses into my 81? I also noticed that my license plate screws are flat heads. I'm not sure if these are OEM or from the last owner. From what I understand the 1995 GTS uses an allen head screws. Does anyone have any pictures of this? I would really like to upgrade to the newer style they are just so much better looking.
12-12-2008, 04:09 PM
#214
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12-12-2008, 04:10 PM
#215
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Lots of work to do that. Lower compression, program timing etc.. Couple Turbo 928's running 4-7psi, one or two much more with heavy mods.
Remember the 944 kits over 350RWHP usualy require oringing the block, firewire head gaskets etc.. Plus meth injection or serious retard.
Put Euro cams and heads on your US to get 285ish at the crank, but lots of torque across the whoel rpm range, something your 944 won't do with a turbo.
The SC guys are hitting mid 500's rear wheel with low PSI numbers as well. Lot's more reliability than a 944 on heavy boost. Anyone can make HP with boost, but can you make it last longer than a week?
There are several Ricers near me with crazy HP numbers from Turbo Hondas and 240's.. but they all have the infamous "50/50" mod.. they only run 50% of the time. A 928 with mild boost will last a couple hundred thousand miles.
12-12-2008, 04:12 PM
#216
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A 928 running the same boost as a 944 would make close to twice the power.
Lots of work to do that. Lower compression, program timing etc.. Couple Turbo 928's running 4-7psi, one or two much more with heavy mods.
Remember the 944 kits over 350RWHP usualy require oringing the block, firewire head gaskets etc.. Plus meth injection or serious retard.
Put Euro cams and heads on your US to get 285ish at the crank, but lots of torque across the whoel rpm range, something your 944 won't do with a turbo.
The SC guys are hitting mid 500's rear wheel with low PSI numbers as well. Lot's more reliability than a 944 on heavy boost. Anyone can make HP with boost, but can you make it last longer than a week?
There are several Ricers near me with crazy HP numbers from Turbo Hondas and 240's.. but they all have the infamous "50/50" mod.. they only run 50% of the time. A 928 with mild boost will last a couple hundred thousand miles.
Lots of work to do that. Lower compression, program timing etc.. Couple Turbo 928's running 4-7psi, one or two much more with heavy mods.
Remember the 944 kits over 350RWHP usualy require oringing the block, firewire head gaskets etc.. Plus meth injection or serious retard.
Put Euro cams and heads on your US to get 285ish at the crank, but lots of torque across the whoel rpm range, something your 944 won't do with a turbo.
The SC guys are hitting mid 500's rear wheel with low PSI numbers as well. Lot's more reliability than a 944 on heavy boost. Anyone can make HP with boost, but can you make it last longer than a week?
There are several Ricers near me with crazy HP numbers from Turbo Hondas and 240's.. but they all have the infamous "50/50" mod.. they only run 50% of the time. A 928 with mild boost will last a couple hundred thousand miles.
Dan
'91 928GT S/C
475hp/460lb.ft
12-12-2008, 04:15 PM
#217
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Yes but will that $10,000 twin turbo set up bolt right on this $500 early 4.5 automatic car ??? Now that is the question !
12-12-2008, 04:17 PM
#218
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Dan
'91 928GT S/C
475hp/460lb.ft
12-12-2008, 04:34 PM
#220
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Yeah, it's true. There is no reason why an early 928 can't make the same amount of power with similar mods. I guess it just hasn't been done yet. What is the most highly modified 4.5 liter putting out currently?
Dan
'91 928GT S/C 475hp/460lb.ft
Dan
'91 928GT S/C
475hp/460lb.ft
12-12-2008, 05:03 PM
#224
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