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Toymods » Tech & Conversions » 1.3L 4K-C Easy Mods?

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Jonny2TG
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Location:
Tasmania
Registered:
May 2002
Re: 1.3L 4K-C Easy Mods? Tue, 16 July 2002 13:47 Go to previous messageGo to previous message
The standard 4K gets the fuel mixed in the pots well at low rpm. It has good torque down low and is economical, very drivable. This is because it has a small carbie, and small manifolds. Driving a 4K hard, you notice that it won't want to rev past 5000rpm, and will get points bounce or something at about 5900-6000rpm. The points or valve bounce that it gets protects the engine, making it almost invincable. If you hold the throttle open, a pushrod will eventualy pop off the rocker, and you will be running on 3 cylinders. Just put in back on adn awy you go, no damage done.

To stop points bounce, get a electronic ingnition distributor. If you can;t find one, get the electronic guts out of a RB Gemini distributor, and use the matching coil and igniter.

To stop any valve bounce, get new or stiffer valve springs. This is the most expencive item, as you will probably have to take the head off. You can do some porting while at it.

That fixes the rpm problems. Now it will rev to 7500rpm? (I have not done this).
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SubjectPosterDate
Read Message   1.3L 4K-C Easy Mods? zarathosTue, 16 July 2002 10:27
Read Message   Re: 1.3L 4K-C Easy Mods? NorbieTue, 16 July 2002 11:26
Read Message   Re: 1.3L 4K-C Easy Mods?  Jonny2TGTue, 16 July 2002 13:47
Read Message   Re: 1.3L 4K-C Easy Mods? Jonny2TGTue, 16 July 2002 13:53
Read Message   Re: 1.3L 4K-C Easy Mods? GregaTue, 16 July 2002 20:11
Read Message   Re: 1.3L 4K-C Easy Mods? gianttomatoTue, 16 July 2002 22:24
Read Message   Re: 1.3L 4K-C Easy Mods? mrshinWed, 17 July 2002 00:18
Read Message   Re: 1.3L 4K-C Easy Mods? JIMMYDWed, 17 July 2002 02:34
Read Message   Re: 1.3L 4K-C Easy Mods? JIMMYDWed, 17 July 2002 08:48
Read Message   Re: 1.3L 4K-C Easy Mods? mrshinWed, 17 July 2002 12:55
Read Message   Re: 1.3L 4K-C Easy Mods? mrshinWed, 17 July 2002 12:59
Read Message   Re: 1.3L 4K-C Easy Mods? Jonny2TGWed, 17 July 2002 15:19
Read Message   Re: 1.3L 4K-C Easy Mods? GregaWed, 17 July 2002 20:03
Read Message   Re: 1.3L 4K-C Easy Mods? ShteeveSun, 28 July 2002 13:14
Read Message   Re: 1.3L 4K-C Easy Mods? mrshinSun, 28 July 2002 22:27
Read Message   Re: 1.3L 4K-C Easy Mods? BarneyMon, 29 July 2002 04:54
Read Message   Re: 1.3L 4K-C Easy Mods? HuntyMon, 29 July 2002 16:55
Read Message   Re: 1.3L 4K-C Easy Mods? oldcorollasWed, 08 October 2003 06:54
Read Message   Re: 1.3L 4K-C Easy Mods? lumpyWed, 08 October 2003 07:15
Read Message   Re: 1.3L 4K-C Easy Mods? rehauSat, 05 March 2005 00:09
Read Message   Re: 1.3L 4K-C Easy Mods? PMP020Sat, 05 March 2005 04:04
Read Message   Re: 1.3L 4K-C Easy Mods? pushrod_POWASat, 05 March 2005 05:31
Read Message   Re: 1.3L 4K-C Easy Mods? PMP020Sat, 05 March 2005 06:39
Read Message   Re: 1.3L 4K-C Easy Mods? pushrod_POWASat, 05 March 2005 08:02
Read Message   Re: 1.3L 4K-C Easy Mods? PMP020Sat, 05 March 2005 08:18
Read Message   Re: 1.3L 4K-C Easy Mods? 1G-GTE KE70Sat, 05 March 2005 13:55
Read Message   Re: 1.3L 4K-C Easy Mods? PMP020Sun, 06 March 2005 01:51
Read Message   Re: 1.3L 4K-C Easy Mods? boofisMon, 07 March 2005 05:55
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