Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,574 topics in this forum
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any suggestions on header and full exhaust systems for a 73 240z. I saw some at Motor sport Auto. What is the difference between a 6-2 verses a 6-1 headers. And what size pipe should I get? 2.5 inch? Any special coating? Zover
Last reply by jmortensen, -
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- 7 replies
- 1.7k views
I need to find a balancer for my Z and I can't find one anywhere in Oz. It is going to cost me $180 to send my old one away and have the rubber insert replaced. Is this my only option??? Thanks Luke
Last reply by Gav240z, -
- 2 replies
- 2.7k views
Anyone ever read/heard of a 280z/zx running a VG30DETT? If so, what needed to be done to stick the engine in?
Last reply by Alfadog, -
- 10 replies
- 2k views
just got a 75 280z. it has been sitting for a few years. but it has been started etc to keep it not seized. the car seems to have nice power..it idles perfectly at 800rpms, but during a certain point when driving it will hit a wall and you have to floor it to get passed the hurdle then it drives fine. any ideas? seems like also it hits at a certain rpm i think its in the 3k band. any feedback? thanks ~B
Last reply by Advan280z, -
- 7 replies
- 1.9k views
I've been polishing my valve cover for the past few days. And I've noticed that the inside of the cover has a "sealant" around the baffle plate. This "sealant" is also around the vent tube on the outside of the cover. (I'll take pictures if anyone doesn't have a clue as to what I'm talking about.) This "sealant" is cracking and falling off. Does anyone know of any alternative for this or has replaced this with an alternative material that works?
Last reply by Ed, -
- 2 replies
- 1.3k views
Just got a new cam (regrind on my original) 269/269 473, should I get new rocker arms or have mine reground by Delta Cams? Some people say get new OEM, whiule others say go with the regrounds. With a 473 lift, shouldn't I get new performance springs since new stock springs, I think, are only good to a 460 lift? Of course I have to get new lash pads, I think I will need 170 or 180. Thanks Keith.
Last reply by Bambikiller240, -
- 5 replies
- 1.2k views
Hi everyone, i just bought some K$N airfilters but after having a look i cant see how they are going to fit over the airhorns. do the airhorns have to come off or do i need to buy some smaller profile ones??? Cheers, Tom.
Last reply by Tommo560, -
- 11 replies
- 1.8k views
I am new to Z's, just recently got a 240Z. I love the car, but I was wondering why Datusn put Inline 6 engines in them.
Last reply by civ104, -
- 4 replies
- 1.6k views
I would like to know if I can remove the cooling system that loops through the carbs? Actually, the system has already been removed, but I have it bypassing the carbs. This is in SoCal, so cold weather is not really a factor. This is on a 73 240z with 4-screw SU carbs on a 77 L28 engine. Will it hurt if I remove the bypass hose completely, that is the hose running from the thermostat housing to the heater return tube? How can I cleanly tie the heater hoses back into the return?
Last reply by Victor Laury, -
- 0 replies
- 838 views
OK, I have all the basic knowledge of how the turbo system works, and how to incorperate it with my early Z.. BUT!!! One Part I just dont quite get......... "Timing". stock 76' is 8 deg. (+/- 2 )..... 81'-82' turbo 20 deg... and 83' is 24 deg. 1) Why would you Advance the timing on a turbo system??? 2) Can someone help me understand why with a system that you dont want detonation!!, would you have the spark start sooner?? 3) Is there something about the increased cylinder pressures that slows combustion??? or do I have something wrong in my thinking this out?? Any help appreciated, aZcarbum
Last reply by azcarbum, -
- 0 replies
- 959 views
just curious on jet sizes(air and main), choke sizes etc on 6 cyl datsuns???? would be good info for us motor "fiddlers"
Last reply by datfreak, -
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- 1k views
I have a L28-097428 engine front and rear bumpers and tail lights cheap in mn e-mail me a dwinthrup@yahoo.com if any questions
Last reply by dwinthrup,
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