logicali Posted December 12, 2015 Report Share Posted December 12, 2015 do i keep efi... for a dual carb setup .... or go turbo??? any turbo kits out there and/or does the turbo have to be a blow thru carb setup or can i keep efi for a turbo...any links to performance parts and info would be cool Quote Link to comment
Lockleaf Posted December 12, 2015 Report Share Posted December 12, 2015 That all kinda depends on what you want.... Turbo manifold - you can source a manifold from a z18et, which was the factory turbo version of the engine. Or you can get a ka24e turbo manifold and gasket match the manifold and the head so they flow well. They bolt together and line up but have different port shapes. The z is kinda the bastard engine of the Nissan lineup. Few parts have been developed that are still sold. There are a couple of cams out there. Quote Link to comment
Draker Posted December 12, 2015 Report Share Posted December 12, 2015 I'd just stay EFI. Quote Link to comment
datzenmike Posted December 12, 2015 Report Share Posted December 12, 2015 do i keep efi... for a dual carb setup .... or go turbo??? any turbo kits out there and/or does the turbo have to be a blow thru carb setup or can i keep efi for a turbo...any links to performance parts and info would be cool Can't have EFI and carbs or was this a misspelling? The Z24i uses throttle body injection and is identified by TWO wing nuts holding the air filter on. If running well keep it Z24i with EFI. Dependable starting and idling in all weather and temps plus good mileage. The Z24 is a torque monster (about 130 at 2,800) so you will feel a solid kick in the ass around town. It runs out of breath quickly as you near 4K. The Z24 was designed for low emissions and high torque at low RPMs for pulling a heavy truck around. It was never designed with future performance in mind so it has limitations but that understood, is still a good engine. You can try a turbo on the throttle body but the ECU is not designed to handle the extra volume of air produced by a turbo and will max out the built in air fuel ratio and quickly run too lean, is my guess. Multiple carbs are still limited by the poor breathing design of the Z head. Cam lift is severely limited because the valves will hit each other. Turbo and blow through carb is workable. The carb can be tuned to dump more fuel during secondary opening. Take note that in order to run an earlier carb (or any carb) you will need an earlier intake and distributor. The Z24i uses a CAS (crank angle sensor) that needs EFI to compute the spark and the timing curve. Quote Link to comment
shacks510 Posted December 12, 2015 Report Share Posted December 12, 2015 Chuck Tomasello in Long Beach, CA has a Z24 with Mikuni 44s in his 510 1 Quote Link to comment
logicali Posted December 13, 2015 Author Report Share Posted December 13, 2015 OK THANKS GUYS. EFI FOR NOW..TIL CRAIGSLIST BLESSES ME WITH A DEAL ON SOMETHING ...oops sorry for yelling Quote Link to comment
Draker Posted December 13, 2015 Report Share Posted December 13, 2015 Lots of people would love to have a Z24i Quote Link to comment
datzenmike Posted December 13, 2015 Report Share Posted December 13, 2015 I have a Z24 but carb. Quote Link to comment
logicali Posted December 14, 2015 Author Report Share Posted December 14, 2015 im just getting into datsuns im a chevy guy ... but why the hell would someone change from a efi setup back to carbs? are there any computer chip upgrades for the z24i? Quote Link to comment
logicali Posted December 14, 2015 Author Report Share Posted December 14, 2015 would the carb conversion still be on the same heads or the L series head? Quote Link to comment
Draker Posted December 14, 2015 Report Share Posted December 14, 2015 Basically all the same, except EFI. When I had my 720 I was searching for the Z24i setup. Sold the truck before I got my hands on one. Quote Link to comment
Z23T Posted December 14, 2015 Report Share Posted December 14, 2015 Cam lift is severely limited because the valves will hit each other. I think the issue is with cam duration. To much overlap and the valves will contact each other. Schneider still makes cams for Nap-Z engines. http://schneidercams.com/nap-z4cylinder.aspx Quote Link to comment
datzenmike Posted December 14, 2015 Report Share Posted December 14, 2015 Yes, duration is better. Both valves open they are closer to touching. im just getting into datsuns im a chevy guy ... but why the hell would someone change from a efi setup back to carbs? are there any computer chip upgrades for the z24i? You asked the question. do i keep efi... for a dual carb setup .... or go turbo??? any turbo kits out there and/or does the turbo have to be a blow thru carb setup or can i keep efi for a turbo...any links to performance parts and info would be cool The Z24i is rather a primitive fuel injection and (I don't think) would work well with a turbo. It was never popular, only used on trucks, doubtful anyone did much with them. For turbo, a simple blow through carb would be easier. I have seen an S110 (200sx) Z20E (efi) intake used on a Z24 using KA24E sensors and ECU. That has been turboed. I'd call that making a seven the hard way.... why not just get a KA engine??? Quote Link to comment
logicali Posted December 19, 2015 Author Report Share Posted December 19, 2015 i already have a z24i.. sitting here runs great , already has 510 pan and pick up... has a 5 speec, got it for 400 bucks , needs throw out bearing Quote Link to comment
Lockleaf Posted December 20, 2015 Report Share Posted December 20, 2015 What pan are you running on that swap? Quote Link to comment
datzenmike Posted December 20, 2015 Report Share Posted December 20, 2015 i already have a z24i.. sitting here runs great , already has 510 pan and pick up... has a 5 speec, got it for 400 bucks , needs throw out bearing The 510 pan won't help a Z series engine fit a 510. For that you need a Z series car oil pan, (probably modified) to fit the 510 crossmember. Only two cars came with Z series engines... the '80-'81 A10 and the '80-'83 S110. Id start there. The 5 speed also needs to be from a Z series engine. Don't bother with the A10 as it was a lighter dogleg. Here you can use the 71B from the S110 or the 720 truck. If you look for one, the 720 5 speed also came in the same length as the original 510 4 speed and wouldn't need a driveshaft shortening. Quote Link to comment
logicali Posted December 21, 2015 Author Report Share Posted December 21, 2015 not to sure which pan i got , but the whole swap i bought came from a 510 that was getting a sr20det upgrade. hopefully i dont run into any issues during the install.... but of course i will Quote Link to comment
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