The new guys 253rwhp D21

Well since I sold te Cressida due to turning it out of a tow at I figured I would buy something that will just tow and not need to modify. Started looking at pajeros and landcruisers etc couldn't find anything decent under $10k. Being a tow car I wanted to be at least comfortable and large enough to fit the dogs and the wifey and spare parts ( in that order ). Drove past an old 86model navara and said wow that's neat. Looked at the price only wanted a few grand and it had only just been done up, new paint stereo interior late model paj wheels yet still had air and steer. Sweet. Tow car sorted. So I thought.

Then moved onto the rolla which has stalled due to everyone that I need to work on it are super duper busy. Hmmmmm boredom sets in.

After a few calls and suggestions I come across an EFI'd Z2.4 turboed engine with forgies, turbo grind cam, VG30 turbo, autronic ecu, blitz EBC. Take said in modifiable tow car to roadrunner fab and this is the result.


Note the VR4 front mount



The autronic SMC and EBC



Current front view

Custom surge tank under car with 044 pumps and facet lift pump



3inch mandrel exhaust with resonator and muffler

Nice work! That must really get along now. What do you tow?

Just use it to tow my 79 corolla around which I use for drags and track work

Nice work mate, a decent increase on the dyno!

Cheers guys.

Any idea on what headgaskets you can get for this engine? Im sure it wont last too long

Nice build mate, maybe a Copper head gasket.

How much boost you running ?

Dave.

16psi on the high boost setting, injector duty cycle is at 95%.

Daily more like 12

Shit thats some boost for a petrol.

Have you looked into info in the US ?

The Yanks have done some good work on KA24E/DE turbo's and I reckon alot of Z24's would have been turboed over there.

Dave.

so is this a z18et or z24 bottom end with z18et head?

Afaik it's z24 bottom with forgies and z18 top, but didn't the 18 come twin spark head?

Not sure, If i were you id think about running an intercooler with that sort of boost pressure. Will give ur engine alot more life. Probably no room for a front mount? Top mount might be the go! Then u can put a scoop on the bonnet, will look tuff

The Z series engines came either twin spark or single.

The CA series engine came both aswell.

Dave.

Ronnie said:

Not sure, If i were you id think about running an intercooler with that sort of boost pressure. Will give ur engine alot more life. Probably no room for a front mount? Top mount might be the go! Then u can put a scoop on the bonnet, will look tuff

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It's already running a stealth cooler if u look closely at the front pic you can see it behind the spotties, had to cut the grill out as I wanted to keep the aircon.

Considered a Copper headgasket ?

KA24's are built off the Z24, look at the headgaskets from the states.

From memory 1 oil line is slightly off.

Dave.

Cheers Dave really appreciate it.

YouTube - ‪240SX KA24DET Christmas Donuts!‬‎

Heaps of Yanks have turboed KA24's.

There are plenty of parts off the shelf over there.

Dave.

Timtams said:

Any idea on what headgaskets you can get for this engine? Im sure it wont last too long

Click to expand...

Cometic in the US make a metal type gasket for the KA24 - it might be a fit.