Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,568 topics in this forum
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What is this? 1 2
by malder- 13 replies
- 1.8k views
Can anyone tell me what this is. Noticed that it isn't connected to anything, but when I have the engine running it sucks air. Thanks Matt
Last reply by Daniel, -
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- 3 replies
- 2k views
has anybody here tried this muffler? how do you like it? how did it sound? i heard from sombody that manages a independantly owned exaust shop, that the best "glass-pack" type muffler i could get would be a twister. i'm planning in getting a new 2 1/2" custum exaust system done soon. btw, my car is a 240z mostly stock, soon to be built for autox. here is the website: http://shop.ivalueinternet.com/bigexhaust/index.cfm/action/productdetail/product_id/551.htm thanks
Last reply by hmsports, -
- 4 replies
- 1.5k views
The problem is annoying resonance from 2000 to 2500 revs. I have an l26 with headers, 2.25 pipe, hotdog with turboflow muffler. It's been trial and error starting with replacing the hotdog with a smaller one. This helped but it was still a little loud. I then replaced the big ricer chrome "straight through" rear resonator with a turboflow muffler. Much better. Still sounds great at idle. I expected my torque range to drop a little but I was pleasantly surprised by how much more pick up i got from 2000 rpm to 4000rpm. Now the only problem is the resonance I am getting at the 2000-2500 range. Is there a way of getting rid of the droning without further changing my exhaust? …
Last reply by toecutter, -
- 1 reply
- 1.3k views
I’m about to start assembling the Cylinder Head and Timing parts onto my recently rebuilt L24 short block and I need some guidance from all of you L24 Experts out there. This is a completely stock engine, cylinders were over-bored .50mm, and since the crankshaft was in excellent shape, it was just polished. I have a stock early E88 Rebello rebuilt Cylinder head, all new Timing Components, and Oil/Water pumps to install. After the engine is up and running, I plan to install ZTherapy SU’s to top it all off. I’ve done this a couple of times, but it has been almost 20 years since the last time, so my memory needs major refreshing and I’d like your opinions, guidan…
Last reply by JEFF, -
- 4 replies
- 1.1k views
I will soon be getting a head that was rebuilt a couple years ago and has never been used or installed on a block. Are there any special considerations that I should be aware of before trying to bolt it on and use it?
Last reply by texasz, -
- 8 replies
- 1.5k views
Anybody know what head the aussie 260z (L26) have? 1975 model. (it has roundtop carbies as standard).
Last reply by Mr Camouflage, -
- 0 replies
- 953 views
Anyone know if the manifold heat shield on a 280 Z is removable without having to pull the engine...if it is please tell me how. Bobby
Last reply by seehunt, -
- 0 replies
- 3.8k views
I am restoring a 72 240. The car is very tired, so I plan on pulling the engine, and going through it. The original engine output is not enough for me, however I do want to be able to drive the car on the street with the A/C on when finished. I picked up some parts for the rebuild/ upgrade already. I have a new cam, and rockers. I think the cam is 260 degrees duration. I don't remember the lift offhand, but fairly mild. I picked an electronic distributer ( the one with the internal electronics from a later model Z), headers, and I plan on 2, or 2 1/2" exhaust ( sugestions?). I will send the original carbs to z therapy for a total rebuild, again any ideas on carb setup wou…
Last reply by griggs57, -
- 2 replies
- 1.2k views
Hi people. What should be the water temp for a 300 HP 280Z race engine. Will it or should it run much higher than stock? Is the optimum stock temp 180 - 190? Thanks C
Last reply by Gav240z, -
N42 condition
by Inf- 5 replies
- 1.3k views
I may be buying an N42 that is in need of a rebuild. The owner sent some pics along with an explanation of what went wrong before he replaced it. Maybe you guys could give me some advice. I was a little concerned by looking at the photos since it looks like the casting is deformed around the water passages. I'm no expert and have really never looked at the business side of a cylinder head, but I am sure many of you know your way around. Here is the explanation I got from the seller :
Last reply by Inf, -
- 5 replies
- 1.4k views
ok for starters i just brought the car 2 months ago. i have noticed that i have an oil leak. i do not know exactly where it is coming from. one guess is the gasket is leaking, another one is that it is burning the oil. it was rebuilt once at 117,000 it now has 206,000. so whould it be worth rebuilding or should i look at buying a new motor for it???
Last reply by beandip, -
- 6 replies
- 1.2k views
Well, I just got back from having my car dynoed. Figures came back about what I was expecting for well used engine. 200k+ miles, a few bad valve seals, rings on their way out, etc. Put it this way, during a full day of autocrossing I use a little more than a quart of oil! Anyway, I had the air/fuel mixture tested at the sametime. In the meat of my power, the ratio is running rich. Perfect stachiometry (sp?) should be about 14.1. I was told I should be running mid to high 13's running in the power. I'm running low to mid 11's. Basically I'm rich throughout the powerband. I leaned the mixture half a turn on the SU's for the second run, which helped down low, but it…
Last reply by kmack,
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