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Location:
Melbourne
Registered:
May 2002
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more poke 3k
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Tue, 27 July 2004 11:24
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i was woundering how i can get more poke out of a 3k cheaply, when i went for a fang, 1st is fine, 2nd is fine, but as soon as i put it into 3rd it dies, this is going up hill btw, is there anyway to get more response out of the ol' 3k?
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Location:
Brisbane
Registered:
May 2002
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Re: more poke 3k
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Tue, 27 July 2004 12:28
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1. It's small.
2. It's old.
3. It's small.
Getting more poke out of it is easy enough, but it involves modifying the 3K into something bigger. A 5K for example will be a decent improvement, and doesn't have to be expensive. It will still be slow, but slightly less so. 
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: more poke 3k
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Tue, 27 July 2004 12:57
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whilst Norbie is right, you can do a few things....
cam, compression, exhaust, porting, carb, EFI etc all spring to mind... in fact, exactly the same as you do to any motor you want to get more power from.
4K or 5K block could help, but for my budget dollar, 4K block with 3K head, mild cam, a bit of porting and a 1.75" exhaust will do well..
for a bit more poke, 4K block, 3K head, ported well, 235@50thou cam, 430-450thou lift, dual valve springs and machined rocker towers, tuned extractors, 2" exhaust.
thats about as far as you'd want to go in a street motor.
for race spec, google for TOSCO manual for the 3K.
Cya, Stewart
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Location:
Melbourne
Registered:
May 2002
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Re: more poke 3k
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Wed, 28 July 2004 01:33
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Thanks oldcorollas.
i know what your saying is a good idea, but that thing is i would like to work with the excisting 3k i got in there, 4k was the plan later down the track, but my funds are low, and the garage space doesnt excist, would a 2k head increase my compression by much, what carb would you best recommend, i do have a 2lt escort webber one (downdraught), with spacer plate, do i need to re-jet it, and would the original inlet manifold be restrictive for the webber application?, also, what cam would be good for a 4k, and would i need to get new valve springs?.
p.s, anyone want to donate me a 2k head?
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Location:
Brisbane
Registered:
June 2003
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Re: more poke 3k
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Wed, 28 July 2004 01:35
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save your money for something better than a k series motor..eg a 3tgte 
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: more poke 3k
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Wed, 28 July 2004 02:55
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it's fun to play with the K motors, but if yu are after "performance" they will never be "quick".. but they do give a race car feel  ..
do 3TG's rev to 8 grand?
anyway, if the 3K you have has good rings and pistons, then maybe have a play with it.. the reason for 4K block with 3K head is instant 10:1 CR.
2K is a 1L motor, K is 1100. K's came out in KE10's. some K heads are bigports also.
2K head woiuld give you around 11:1Cr, but there are not many 2K's floating around.
carb depends on the cam and the rest of the setup. no point having a big carb if you have a bad exhaust or a stock cam.
the escort 32/36 with 26/27 chokes is not good. the primary chke is too large.. look for a euro webber from maybe Fiat, with 22-23mm primary choke.
yes you will need to rejet any carb.
i have a straight runner K manifold and it still makes abut 100HP. but they are restrictive.
what cam? what do you want it for? i like high lift cams, but over a certain lift, the stock springs will bind. about 430thou lift will maybe bind. i have 435, but wuld like to go up to 450thou lift soon.
you need to design the engine as a package.
Cya, Stewart
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Location:
Melbourne
Registered:
May 2002
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Re: more poke 3k
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Wed, 28 July 2004 03:03
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thanks for the info, all i need now, is space to do it in, and some cash, how can i tell if my rings are in good condition, it blows smoke when its cold, but i think thats because the choke is on, when its warmed up, it doesnt blow much or not at all any smoke, but i dont know seeming with the cold weather, if its smoke or condensation, it aint black smoke, and it doesnt burn oil, just leaks it..a bit  , i just went for a drive before, and dunno what it is, but its shi*#ing me off at the moment, when i come up to an intersection red light, i put it in neutral, and just roll to the intersection braking, and as soon as i start braking, it fn stalls, even when im at a normal intersection just sitting there it stalls, and the car is warm, even with choke on it doesnt like to idel.
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Location:
New Zealand
Registered:
May 2002
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Re: more poke 3k
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Wed, 28 July 2004 11:21
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You DO NOT want a 2K head, the ports (and apparently valves) are smaller than the 3K and would take you a lot of work to get back a decent flow level.
Having said that if you still want one I have a fully recond one still wrapped in plastic......buts its in NZ.
Callum
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On Probation
Location:
North East NSW
Registered:
December 2002
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Re: more poke 3k
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Thu, 29 July 2004 09:31
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blah blah blah
replace it with a 4k, put a 25/65 cam in, get decent headwork done and bigger valves if you can afford it. it will work with the stock carb but will work alot better with anything up to about a 32/36 weber
if you want any more than that, spend the money putting a 4ag or rotary in
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Location:
brisbane
Registered:
September 2005
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Re: more poke 3k
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Sat, 24 September 2005 07:37
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wat kind of increase will this give u , 90hp atfw? roughly speakin of course cause ye ol 4k's have bout 70hp atfw
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Location:
Launceston
Registered:
March 2005
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Re: more poke 3k
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Sat, 24 September 2005 08:09
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| arkon wrote on Sat, 24 September 2005 17:37 |
wat kind of increase will this give u , 90hp atfw? roughly speakin of course cause ye ol 4k's have bout 70hp atfw
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atfw = At the front wheels
atrw = " " Rear "
sorry put im picky
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On Probation
Location:
North East NSW
Registered:
December 2002
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Re: more poke 3k
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Sat, 24 September 2005 08:43
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you'd need forced induction to get that. even the best ported, custom cam, big piston rally K engines are only making 80hp at the wheels
k heads just don't flow that much
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: more poke 3k
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Sat, 24 September 2005 11:31
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| tom210 wrote on Sat, 24 September 2005 18:09 |
| arkon wrote on Sat, 24 September 2005 17:37 |
wat kind of increase will this give u , 90hp atfw? roughly speakin of course cause ye ol 4k's have bout 70hp atfw
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atfw = At the front wheels
atrw = " " Rear "
sorry put im picky
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At The FlyWheel
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Location:
brisbane
Registered:
September 2005
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Re: more poke 3k
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Sat, 24 September 2005 12:46
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cheers oldcorllas , yeh i was talking bout the flywheel , ive got a 4k with gearbox sitting here but a 3k in the ke30 , hmm wat to do , cuz i am not exactly a mechaninc or too mechanically minded but if its easy to do im up 4 it, 4k with 3k head ?
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