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Luk3333's 1982 Ke70


luk3333

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  • 4 weeks later...

So engine is 90% complete, final spec list:

- Crow cams 740 cam, 280/286 .400" lift

- Dual Timing chain, rollmaster cam gear

- Holden 308 Mechanical lifters

- Datsun A12 pushrods

- 4K head, polished runners (to be done still)

- 81mm shallow dish/ O dish pistons (10.2 CR)

- New bearings, seals and gaskets

 

Just need to finish the head work and bolt the head on, set the valve lash and its done. I have bought a set of CBR900 carbs and made up a CAD drawing to get the flange for the new manifold laser cut, but I've put getting the manifold build on the back burner until the car is back on the road.

 

On the suspension front:

Rian, you're right, they are ADM calipers, and the brake pad carriers are JDM :wtf: ... So now i have JDM pads that I've had 3mm machined off the outside and now have to sand done the inner pad about .5mm to get them to fit. Also I now have A1RM pads as the JDM HPX pads were on back order for 6 weeks... Still need to install all the gear as I've been busy trying to get through my uni work and clear the defects. Pretty much all the defects are cleared. Just need to replaced the rear left axle seal. The fuse box has been relocated to passenger foot well next to the door. Thats pretty much it.

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  • 2 months later...

The Ke70 has been back on the road now for a few months now. Been driven up and down the freeway multiple times, through the Natio and up to Port Stephens and back.

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On the first drive it appeared slower than before the engine swap! After getting the cam and ignition timing right and the vacuum advance its heaps better. It's now pulling pretty good from about 3.5/4 to 5k rpm but just running out of puff, most likely due to still running the stock carburettor. Thats where these come in, now to get cracking making up a manifold. I'm thinking red Unilfilters socks or making up a sheet metal box with a K&N panel filter on top for daily driving. Once the carbs done, the next engine upgrade will have to be valve spring as I'm still running the stock ones.

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Below a few photos of the evolution and engine bay.

 

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I picked up a pair of 14x7 -0 SSR MKIII's with new 14/60/175 Nexen Tires, I would have preferred a 14/65/185 for a beefier look but these tyres came with the rims almost brand new. Now looking for some longer control arms to give it some camber and fill the guards.

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Also got some lower chrome fender mirrors for a more subtle look and some heat wrap for the exhaust.

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With the brake issue I ended up buying a full set of JDM carriers and calipers, and also a new brake master. I'm very happy with the brakes especially coupled with the new tires, only lament would be that the pads can squeal and squeak a bit and create a lot of dust.

 

The to-do list is now:

Fabricate the manifold and accesories for the bike carburettors

Remove sound deadening and put in black molded carpet

Gauges/ Data logger

14x8 -0/10 SSR MKI's on rear

Longer Lca's/Celica Tie rods/New ball joints and bushes

 

Once I'm off my P's in September if I still have the Ke I'll be getting some decent buckets, 4 point harness and deleting the rear seats and getting it mod plated so I don't have to worry about defects.

 

I've also decided I'm going to do the first Circuit Club track day next year and see how the car goes, obviously it'll be the slowest there but whatever. If all goes well I'll be looking to do some Motorkhana.

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  • 2 months later...

Best laid plans of mice and men... It's not the first track day of the year but I have booked a spot for Wakefield on the 22nd of March! Very keen for it, it has really sparked some motivation again.

 

I've removed most of the sound deadening, just need to do under the drivers seat/ foot well then its paint time. I'm thinking of not worrying about the carpet for now, I thought it would be noisier but its really not that much different.

 

I've bought new rear shoes and slaves as my handbrake wasn't gripping (shoes lubed up by brake fluid), and I have a slow brake fluid leak so I'm guessing the slaves are done. (Thought it was just the master cylinder, but kept losing brake fluid after I replaced it). I've got a set of Celica tie rods and rack ends now, just sorting out Lca's and then I can have not dodgy camber! I remember how much of a difference it made when I went from stock to longer, can't wait to have that extra front end grip back.

 

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I decided the Quad carbs were going to be too much effort considering my limited fabrication skills and lack of garage so I invested in a pair of Solexs. God they sound so good! I love how I can cruise around relatively quiet then go full throttle and make the most guttural noise. After a few minor repairs including setting up the linkages for better leverage, resealing one leaky accelerator pump, reattaching a accelerator pump linkage, buying a set of booster venturis from Wolf Creek Racing and some smaller fuel jets I had it running fairly well. Even with a poor tune I could really feel the car pull much harder and much further through the rev range than the stock carburettor.

 

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Running an aluminium air box I folded up with a K&N panel filter, but I've since ordered some trumpets and socks. I was looking at the T3 ones but found a set of 4 on ebay that were $100 cheaper so i went with them. I figured I'd rather spend the $100 elsewhere...

 

Currently it runs rich on the slow circuit, typically about 12:1 (It's hurting my wallet :( fuel is too expensive!) so I've ordered a pair of 57.5 and 55 jets to replace the 60 slow jet it currently has. Midrange is good, but I can't open full throttle till over ~4000rpm or it leans out to 15:1, so I'm replacing the 210 air with a 150. This may be too small but it is a lot easier to get them drilled larger than buy a smaller one or solder and redrill. The current 120 fuel seems OK. It originally had a 140 and was very rich everywhere other than idle. I think the midrange issue could also be because I haven't got the accelerator pump on full throw because it make the Afr's drop right off, I've bought a 30 jet to replace the 40 and hopefully it helps. My jet decisions have been made based on research from other forums (mostly datsun), blown 5k's advice and by using small pieces of copper wire to effectively reduce the jet size. Sounds weird but its a lot quicker and cheaper than getting them redrilled or buying more. One other thing I'd like to change would be the venturis from 39mm to a 37 or 36 for a stronger vac signal from the small engine, but wolf creek doesn't sell them and I haven't really looked around otherwise.

 

I've started working on the data logger again, but I'm going to make a separate thread for it.

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