Engine Mods
Zcar engine modification
32 topics in this forum
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- 3 replies
- 4.6k views
In theory one could drill out and install efi bungs on a triple carb's intake manifold then just use the carbs as throttle valves only. Removing the venturi's or reshaping would open up the upstream. Just a thought. The only applications I can think of are carb vs EFI dyno tuning convenience or using both at the same time so that carbs run slightly lean at ~90% of the fuel demand and the EFI acts as a tweaker to make up the rest to a finer precision.
Last reply by madkaw, -
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- 1 reply
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Im looking for an ecu to run my L28ET swapped 240z and cannot find any real definitive answers. The engine has 440cc injectors, a mild cam, porting and an adjustable fuel regulator. What ECU would be cheapest to buy and fastest to get running?
Last reply by MotoManMike, -
- 2 replies
- 2.6k views
I hope this is in the correct forum for this but it seems I have a coil dilemma. A PO for my 4/73 240 put in an L28 with electronic ignition but left the coil's ballast resistor in place and hooked up. Now I am trying to determine if I have the 240 coil and should leave the resistor hooked up or do I have a 280 coil and can remove the resistor. The car seems to run fine but as always I want to get the most bang for my buck. I have measured the resistance of the primary and secondary windings and find that, except for the a low reading on the primary for a 240 and a little high for a 280 (mine is 1.1ohms on the primary while the 240 FSM says 1.5-1.7 ohms and the 280 FSM …
Last reply by 5bzhive, -
Hydrogen Z? 1 2
by Mike- 12 replies
- 3.5k views
I ran into a guy today in Corvallis, OR who has a 240z running on Hydrogen. I introduced myself and asked him to come and visit the club. Anyway, the brief conversation I had with him was interesting. He popped his hood and showed me some kind of container that looked like a water filter connected to the intake on the engine. The whole conversation lasted about 5-10 minutes but I would like to know more about this kind of modification. He also mentioned a hydrogen fuel cell in the car. But, I was thinking the whole time this must be some kind of fuel cell technology? Separation of the hydrogen from the oxygen (ie: water car). I don't know much about it, but, when …
Last reply by SteveJ, -
- 6 replies
- 4.7k views
Hey everyone, I know you guys are all about keeping things lightly modified or stock. 2 pretty straight questions for what could become a large modification (just to get me started). I was told the engine in my 71 240z is a 260z engine/transmission. Are there any numbers on the block that would tell me what the truth is? Same for the transmission? If it is a 260z, can I bore it to make a 280Z engine out of it (since a 280 is a bored 260, this makes sense, unless i'm missing something)? The end result I want is a carbureted 280Z that runs well and fast with a 5 speed transmission, for as cheap as i can do it (i'm pretty good with a wrench, dad welds, need to hire boring/m…
Last reply by rupertjab89, -
- 5 replies
- 3.8k views
Has anyone ever used a Buick v8 for a swap? My uncle Tim Henderson passed away the week before Thanksgiving this year, and I was thinking since he was a Buick nut and was responsible for me having z-cars, I would like to build a z with his Buick 340 v-8 That was for his 66 skylark. He always tried to talk me into a v-8 swap, and I think it would be cool to build this z as a tribute to him. Would this be about the same as a chevy swap?
Last reply by s14280zx, -
- 0 replies
- 2.6k views
Hi everyone, Does anyone here have a catch can for their L series crankcase? How did you reduce the ridiculous 1-inch diameter pipe coming out of the block down to the small fittings on most racing catch cans? Did you start with a hose and use a series of pipe reducers until you had the size to fit your can? Any pictures??
Last reply by Nazgul280, -
- 9 replies
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:stupid: My Dad has a very nice rebuilt Chevy 400 in his 59 Chevy Apache and he's going to put something else in there, so he said I could have the Chevy 400 engine for free if I wanted it. I currently have a 78 280z and I want to drop a big V8 in there, but I don't really know how much work or money it's going to be. Can someone give me an idea? The real question is, since I likely need a head job on my in-line 6 stock motor that will cost around 700$ (guessing, that's what another guy on the forum paid), should I fix the stock engine or just put the Chevy 400 in there? And after that, my dad says that since the bore is bigger on the 400, there's no room for a water jac…
Last reply by gvincent,
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