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924turbo_sout_africa · Joined: 29 Oct 2007 Posts: 215 Location: Sout africa

My 931 was rebuilt about 4 month's ago only really started to push her around now but picked up that she whould pull in 2nd gear to about 5500 rpm's but as soon as you hit 3rd or 4th gear she will not pull over 400rpm's

I did have a 280S cam put into her which they use in the 924 challenge in South Africa just want to know will it be the timing thats not 100% or what
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Porsche ...where dreams are a reality
'79 924 turbo canada spec
'98 Formula Vee (M3 eater)

Time in the 931 is a dream come true !!

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Does it start to get hot while this is happening? Sounds like its leaning out. Have you replaced the fuel filter?
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WeiBe (1987 924S 2.5t) - 931 S3

dpw928 · Joined: 02 Nov 2002 Posts: 1860 Location: owasso, ok 74055

Improper cam or ignition timing (if series 1) could also cause the drop at 4K.

Dennis
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81 931 5 sp
78 928 5 sp Silver
78 928 AT Euro Black

924turbo_sout_africa · Joined: 29 Oct 2007 Posts: 215 Location: Sout africa

i will have to check on both those things hope it's not leaning out damn that will not be very good for the motor

ya it is a series 1 so will check on that one

thanks
_________________
Porsche ...where dreams are a reality
'79 924 turbo canada spec
'98 Formula Vee (M3 eater)

Time in the 931 is a dream come true !!