924Board.org

Joes924Racer · Posted: Sat May 24, 2003 3:14 pm Post subject:

Word from the bible from cmxxxi is pretty good stuff .This comes at a time really helpful all post were ,I have the timing set the cam gear at zero and idle at 950rpm Im gonna see what the fuel dizzy is doing just because.
When I had rust in the tank and car wasnt runningwell[when i first bought it] I convinced my self the beam was to dirty and took it all apart problem was I couldnt get it back together I had to get a whole new top picked one up for free though.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

Roger · Joined: 06 Jan 2003 Posts: 1235 Location: Cordova, TN

Did the AMFU come off a 924?
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1981 924 NA

Some people are like Slinkies. Not really good for anything, but you
still can't help but smile when you see one tumble down the stairs.

mustbfaster2 · Posted: Fri May 30, 2003 3:00 pm Post subject:

mustbfaster2 · Posted: Fri May 30, 2003 3:01 pm Post subject:

Just wanted to say thanks for the help guys....everything seems much better now. While tuning all the air and fuel settings i realized that my timing was quite a bit off too. Unfortunately I spent a good hour adjusting everything before I realized this....then had to do it all over again. I was double cheching my specs on timing in my shop manuals and realized that the specs i looked at last time i set it were for a NA...not a turbo. Boy did I feel dumb. All those headaches because of timing.. oh well. It seems to run good now so im off to find the few remaming things i need....a slave cylinder and a motor mount....and then i should be good to go!

Dustin

Joes924Racer · Posted: Sun Aug 10, 2003 2:25 pm Post subject:

AznDrgn
This is the post
Itll work I think if you print it out and follow directions..
Hope it could helps lots of good stuff there.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

Joes924Racer · Posted: Sat Oct 30, 2004 12:32 pm Post subject:

I found another good post on this topic I was gonna post it though
I cant find it... Anyway are we all dialed in on setting Co,and idle and stuff
hope so. I have a different Tb so alot of this stuff doesnt apply.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

Joes924Racer · Posted: Fri Jan 20, 2017 5:46 pm Post subject:

Hello every 1.Im installing a wide band o2 sensor. What is the correct mix. If I remember its around 13. something, can someone answer this. Motor is non turboed for now stock cp, port and polished head, after market cam, and a header.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

On a fully warmed up motor, you should set mixture so that the wideband AFR shows steady 14.7 at idle.
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erstwhile owner of just about every 924 variant ever made

Cedric · Joined: 27 Aug 2004 Posts: 2801 Location: Sweden

and about 12,5-12,7 on full load, should be a good start for maximum power.
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1980 924 Turbo
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RC · Joined: 25 Mar 2007 Posts: 2637 Location: Australia

Yep that's good on a NA. Read that Joe is talking about an NA here but don't try on your 931, will ya Joe?

Personally run a flat 12 AFR at 200KPa right up to 7K but took it slow and cautions tuning to that level with EFI and constant datalogging. That is somewhere within a few % of maximum power and I'm not racing nor have the balls / pistons to try get nearer 12.5. I doubt anyone could get anywhere near even 12 AFR @ WOT under boost with CIS?

This chart is an excellent general tuning reference.

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World`s quickest 924 2L slushbox

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Fantastic chart, thanks for sharing.
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erstwhile owner of just about every 924 variant ever made