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Engine & Drivetrain

Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.

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More Power

January 19, 2006 by Jenkins
2 replies

1.3k views
I currently own a '79 280zx that's in pretty good condition w/ no mods as of yet. Right now I have it parked because I am doing some minor work on it, since I don't drive it in the winter. I was wondering if anybody has some advice or tips on getting more power out the stock engine. Success stories perhaps? I was originally considering doing an engine swap, but after doing some research on it I feel that it would be too much work and time consuming. I would appreciate any feedback.

Last reply by rdefabri, January 22, 2006
Installing Header As We Speak!! 1 2

January 8, 2006 by Pennyman
17 replies

2.8k views
Hey, everyone, just took a break for breakfast. It's noon and I've taken off the heat sheild and sprayed all the studs with penetrating oil. Hopefully the process goes well, but we'll find out! Tad bit of surface rust left on parts of the header (found it at junkyard totally thrashed, sanded it and painted it myself w/ header paint). I think the rust mught be the worst part of all this. Wish me luck, I've got a week till I have to go back to work and my girlfriend's birthday's next week, so I've gotta get this done, hehe. BTW, anyone run their car with an open header? Wouldn't the hot gas melt or ignite the undercoating? Just wondering.

Last reply by Pennyman, January 20, 2006
What flywheel bolts?

January 19, 2006 by Arne
5 replies

1.5k views
Want to verify something as I prepare for the auto to manual tranny swap. Here's the question - the car, clutch and transmission are '71 vintage, the engine is '83 and the flywheel will be something like a '77 or so. I see numerous flywheel bolt choices, can I assume I need bolts to match the flywheel ('77 or so)? Or the engine ('83)? To me, matching the flywheel seems most logical.

Last reply by Curtis240Z, January 20, 2006
Main Pulley Bolt Size??

January 18, 2006 by Marty Rogan
2 replies

1.2k views
I am starting a swap of an '83 ZX motor into my '73. Does anybody know what the bolt size is for the main pulley. My largest socket is 24 mm and that isn't it. I need to buy a bigger one, so I'd like to just get the one I need. TIA, Marty

Last reply by dkd021, January 19, 2006
Red Line synthetic oil..anyone used it 1 2

January 16, 2006 by Carolina Z
23 replies

2.7k views
What do you think of it , or synthetic oil in general, have been using Castrol for the last 5 years with Bosch filter, just wondering if synthetic would be better

Last reply by gnosez, January 19, 2006
Drivetrain vibration over 50 MPH

January 13, 2006 by richard1
10 replies

1.6k views
The drive shaft u joints have been replaced and I still have a perceptible vibration over 50 MPH. Could it be possible that the drive shaft need to be rebalance?

Last reply by DatsunZsRule, January 18, 2006
Help identify L28et pistons

January 17, 2006 by ezzzzzzz
2 replies

1.9k views
I picked up an 82 280zxt (with 201300 miles on the OD) the other week. The F54/P90a engine supposedly had no compression on cylinder 5. Someone had pulled the valve cover, water pump, oil pump, etc. for reasons I'm not sure about. I pulled the engine yesterday and removed the head expecting to find a burnt valve, blown head gasket or damaged piston/rings. Nada...nothing wrong. There's lots of oil every where and the plugs were heavily fouled. The block has no ring ridge and crosschecking is still evident in the bores. One of the torque convertor bolts was lightly damaged. I'm convinced this is a relatively recent rebuild. All of that said, I am wondering if this is an ove…

Last reply by ezzzzzzz, January 17, 2006
82 280ZXT P90a with solid lifters

January 13, 2006 by ezzzzzzz
4 replies

1.8k views
Just a note to say that I have an L28et with the P90a is a solid lifter configuration. It has been said that these didn't exist or only came from the Japanese market. I don't yet know if I'll hold on to it, sell it complete, break it for parts or move the head and turbo over to my triple Dellorto L24...decisions...decisions. I'm breaking down the whole car so if anyone needs a particular part let me know. I'll be posting bits to eBay shortly.

Last reply by Arne, January 15, 2006
Syncho Problems??

January 2, 2006 by peng155
6 replies

2k views
Hello Everyone... Can someone tell me if the following problem is a syncho problem, or is the driver (Me) being an idiot I have a 71 'Z', with a transplanted 5spthat the PO installed... As I drive the car I have no problems up shifting 1st to 2nd, 2nd to 3rd, and so on... as I slow down, and down shift 4th to 3rd.. no problems, and as I come to say a stop sign, or make a turn and down shift from 3rd to 2nd so i don't lug the engine... I have a hard time getting the transmission into gear. I am double clutching, but it seems that it's a hit or miss deal as to if the shifter will go into gear. I think I notice that weather the shifter will go into gear or not depends …

Last reply by ZSaint, January 15, 2006
$150 for a 79ZX engine. Is it worth it? 1 2

January 12, 2006 by Hrududu
23 replies

2.6k views
So I'm looking for a rebuilder motor for my 280Z. I found one from 79ZX for $150. The guy says it was pulled in 89 and ran fine at the time. It had 145 PSI in each cylinder. It has the exhaust and intake manifolds as well as all the fuel rails. It was kept indoors. What do you guys think? Is this engine going to be as powerful as my 77 engine. It has the same N42 head. What kind of power would this put out? I know the ZX was supposed to be weaker, but from what I found, they group the 75-80 engines together as the same motor. Thanks guys.

Last reply by Hrududu, January 14, 2006
l28 pistons 120thou(3mm) over?? 1 2

January 13, 2006 by datfreak
13 replies

3.4k views
Ive done a bit of a search and a few have touched on this but id like more ideas. I understand that with a LD28 cranl/l24 rods, there are pistons the can be made to fit- with fly cutting etc. But im more interested in keeping the std l28 crank and rods and just using 120thou flattop oversize pistons- without having to get them made up custom(too much $$$). Anyone know of any other piston combo that would work.? thanks

Last reply by ZSaint, January 14, 2006
nismo 2 way LSD R180

January 8, 2006 by 180sxidewayz
3 replies

5.5k views
Hi, I have a JDM Nismo R180 2 way limited slip differential with axles. This item was removed from a 1995 Nissan S14 Silvia with SR20DE manual transmission in Japan. This differential has approximately 30,000 miles and it is in very good condition. Applications: Nissan 240zx, Datsun 260, 280, and interchangeable with R160 on the Datsun 510. Non ABS Gear Ratio: 4.08 picutures available upon request if interested let me know ludee00@hotmail.com

Last reply by EricB, January 9, 2006