hey guys and girls
been talking to my good mate who is mechanic who was telling me about a sr20de and then twin weber set up, would like to know if anyone has tried it or is planing to do it

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180b datto

Had thought of doing it, wouldn't have to run computer or loom and in a old datto it would look pretty cool I reckon. Could use maybe twin 50's on it?

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1974 180BSSS
L series 1200 coupe rallycar

yer I was thinking of running in it at 180b

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180b datto

Its a expensive exercise just to make less power than a std turbo engine with less drivability to boot.

Im all for doing something different but how would you meet emissions on the newer motor with carbs and register it in a street car?
Apart from the look and sound (which an ITB setup could mimic) it would be a step back IMO.
Cold starts would be a bitch, fuel smell, custom parts, dyno tuning and setup costs etc and as sled says less power (mainly down low).
The intake/filters would probably hit the master cyls too...

Whats going to run the ignition?

I would start by rebuilding the engine, e.g flat tops, balanced bottom end bigger cams. Custom parts are no problem at all. Im pretty sure that emmisions wont be a problem because it only has to match the emission laws of when the car came out. Fuel smell and cold starts are what defines an old car. Some n/a motors have distributors and if theres no luck there could alway make a custom one. just something different i guess.

Ran an SR20DE with Haltech fuel only computer using a modified Pulsar electronic dizzy quite successfully. I reckon the dizzy was from an N12 from memory.

There was a fella here in Adelaide running a weber fed SR in his 1600 TCM car.

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Trev

There's something about twin webers at full noise.

what else have people done for engine or what have people done to the standered engine

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180b datto

Do a cut and shut on the rocker cover, make all rectangular and box like looking, to look like an original LZ Twin Cam
Mikuni Solex 44's for high air speed velocity, or 50 Solex's for high rpm, not so grwat down low.
Just need ecu for ignition control.
Very cool!

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Yep, i race a Datsun, and I drive a truck, sometimes I get confused, and then the truck goes fast, and the Datsun gets a lot of boxes shoved into it. AWW GEE

Do you remember what was modified in the dizzy to make it work? Was it straight bolt on to sr ?
Would like to run no ecu or loom if I could help it, to tidy up the bay

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1974 180BSSS
L series 1200 coupe rallycar

Not much, machined an adapter to use the SR drive on the Pulsar dizzy, not sure if we made an adapter plate to bolt it into the engine.
I know we did have it recurved to suit the advance curve required whilst at the dyno.

Wired up like any old school electronic system.

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Trev

There's something about twin webers at full noise.

thank you for all help so far it has been awesome

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180b datto