Dyno graph Datsun 280C
By ozconnection
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This is the dyno graph that matches the dyno run also posted by me on this site. Tuning revolved around maximising low end grunt with a stock L28S engine. Modifications were to advance the stock L28S camshaft, advance the ignition timing, a set of headers and a larger 2.5 inch exhaust. An Arizona manifold was chosen because it behaves like a dual plane, dividing the carb. and engine in two-similar in concept to the factory SU setup. A 465 vac. sec. Holley was used for its small primary venturis. The blue curves represent the L28S engine as delivery by Nissan. The green curves are my efforts. A great engine combo for my car (and a Patrol, maybe?) The next engine for my car will be a 3 litre stroker with 10.0:1 compression. Can't wait!
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Gallery Statistics
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Image Comments
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I know a few people were following along on this- been a while since I last posted here- but finally all came together!
Mounted up and running strong! Still a few details to work out; but runs good, sounds good, feels good on the initial pulls. Super happy it worked out!
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Well I decided to go for it -
Went with 42's and a TWM manifold. Still lots to sort out, but Ill start another thread on it somewhere and link it back here. Rought calculations hopefully put it in between an OER setup and a Mikuni PHH setup $wise.
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By duffymahoney · Posted
I would probably do them in pairs, then each pair goes to a common shaft.
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Part of running a single shared throttle shaft was for a super clean look- like how datsun_tokyo linked above has it.
I also still haven’t decided on the manifold- but was planning on the TWM one- seems to be the cleanest and allows me to run without all the linkages.
With that said I’m interested- I’ll shoot you PM.
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