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Tuning tb42

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

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Posts: 7
Joined: Mon Jul 21, 2008 10:14 pm
Location: perth

Tuning tb42

Post by badga »

hey guys,

Just trying to get the best out of my tb42 carby engine.

I have set the timing @ 10' on the markings.
I have wound the screw on the side of the carby 2 complete turns out, from all the way in.

I was just wondering is there any other things i can look at?

Also what timing degrees to you fellas run? is it best to have it on the lower side of 10 degrees or the higher side?

thanks

Badga
Posts: 1258
Joined: Wed Mar 21, 2007 7:49 pm
Location: Mornington/ Victoria

Post by PGS 4WD »

On the dyno I dial up maximum power by adjusting the distributor, its better with premium due to the tendancy of the stock advance curve to knock at low rpm high load. I also do some carby mods, usually have to open the power valve earlier and lean out the secondaries, it usually aids driveability and gets about a 10% power increase.

If you are really keen we can regraph the distributor to get more mid range drivability and peak power.

Joel
-Pre trip inspections/ servicing
-Suspension/ custom modifications
-4wd Dyno & tuning
-Qualified mechanics
Posts: 1024
Joined: Sun Oct 08, 2006 1:29 am
Location: Right behind you and coming fast!

Post by cooki_monsta »

get ur carbie tuned, i got mine rebuilt, then hit it up with 15 to 18 deg advance and only run it on premium, its got bucket loads of power for a tired old pushrod 6 :D and it goes hard, only problem is it drinks a little
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