Guide: How to build a K series motor

[ToDa30/4]

I want to build on a 4K block ,a mate here has A 45mm. weber i can have ,what do u think of supercharging the 4k with a toyota unit and using the weber ,different cam , double springs & 4K forged pistons to suit forced induction .sure u could get them.

[oldcorollas]

for SC. fuel inject it.
run an intercooler.
be able to tune it properly and take advantage of the SC... don't stuff around with carby

[ToDa30/4]

i couldn,t agree more for perf & tuning ,thinking more of something contempory to 1975 ,say charging or suck thru turbo using a 45mm s/draft. thats what i'd like to emulate

[oldcorollas]

if you reaaally want to emulate how shit they were.. go ahead but EFI will be better in all respects.
in this day and age there is no excuse
suck thru carby SC will only be annoying.... cranking waiting for fuel to get thru the SC without wetting out.. etc etc... ewww..

just get a 7KE setup and be done wth it

[ToDa30/4]

ok ,7k efi they dont come up for sale often right ?& get snapped up quick,all food for thought

[ToDa30/4]

Ok ive read the 7KE manual,u got time for part 2. i have been back reading in the old forums about the EFI conversion.. do u still have the contacts in the US to source 4KE or 7KE inj.manifolds , t/body t& related bits. That is the way to go .cheers Dave

Because this topic comes up again and again, typically for people who are just starting to get into car modifying.. 'cos lets face it, corollas are the bottom of the pile ;
so you want to build a K motor??

camshaft. this all depends on what rpmrange you want your power band, and if you are using EFI or a carby. EFI will lower the rpm at which the cam comes on and broaden the effective rpm power band. 230/235@50 thou lift with 435thou lift is a Camtech 609 (adv 275/284)... a good cam that comes on around 3500-4000 and keeps going to about 8000,
most people will want a little less.. sayyy, 220/225@50thou, but high lift is always good 430-450thou lift is abotu as far as you want to go perhaps.

if possible, go EFI using a 4KE or 7KE manifold they are MUCH better than the downdraught manifolds, and control it with a cheap Megasquirt. Thats another story

so endeth part 1 of the K lesson ;

Cya, Stewart

[Hurricane]

Dan,
There is no substitue for cubic inches
don't you just love the low down of the 2F in our forties

oh do i ever pulls like no tomorrow i love it

[kingmick]

if you reaaally want to emulate how shit they were.. go ahead but EFI will be better in all respects.
in this day and age there is no excuse
suck thru carby SC will only be annoying.... cranking waiting for fuel to get thru the SC without wetting out.. etc etc... ewww..

just get a 7KE setup and be done wth it

agreed ! you are only asking for grief boosting carbies! sure there are some well know street and drag setups with it, but in 2006 it is not worth it, especially if you have invested money into the long motor.
with the cost of aftermarket ECU's so low now for what you get, there is no real reason to go carbie in anything but atmo.

[ToDa30/4]

ive had alook around and havn't found 7KE motor or any parts to speek of

[rollin_stock]

ive had alook around and havn't found 7KE motor or any parts to speek of

Your not looking hard enough!
I know of 2 7KE motors for sale in south aus, one a 2003 model the other 2001. Im not telling you where, but the 2003 with efi and loom $2000+

[oldcorollas]

i got a 7KE setup, (inc a ruel rail i bought from toyota for $70-80) for under $300.

i also sold my 4KE setup, that i dragged back from america, for about $300 also.

ring all the commercial wreckers. there MUST be some somewhere.

failing that, a 4KE setup from NZ would be ok.. but then you need to change TB and TPS (to non-4KE ones) and rocker cover (to the 4KE one)

please excuse the size (and shitty engine bay )

7KE on 3K/4K hybrid
fuel filter is from... some toyota...bolts up to the stock coil position... the only custom thing (i think) was the fuel line between rail and filter... the ends were from?? maybe camry/celica.. and made up enzed or pirtek... for about $20-30

[Billzilla]

Nice job Stewie!!!

It's a lot like a mix of old technology tarted up with some new stuff to make it fit in.
A bit like Gretel Killeen.

[oldcorollas]

oh, and throttle cable is camira

[Billzilla]

oh, and throttle cable is camira

In that case I change my answer to Amanda Vanstone.

[ToDa30/4]

That is very nice Stu, if i went for a complete 7KE are some better than others or buy as late motor as i can ? then ..fabricate/mod the mounts ,mod the sump for clearance , rad .hose & matching to thermostat housing ,wire in to a/market ecu ,elec. fuel pump & ?.CHEERS