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
-
- 9 replies
- 2.2k views
Ok, so here one for ya'll to think about... I have the stock heat shield from a '73 over my header (6-2) and I'm pretty sure I'm still getting a heat problem in my carbs when running down the highway. These "warm" Texas summers aren't helping matters. So I'm looking to modify my heat shield to combat the heat coming off the headers. I have an opportunity to get ahold of some asbestos fabric and was thinking about using this and apllying it to the heat shield. I figure pop-rivets would work better than glue (not sure I could find a glue capable of handling the heat). Now I know all about the precautions regarding asbestos. I've been involved in the removal aspect of…
Last reply by Leeroy, -
-
- 0 replies
- 1.3k views
Where can I find rebuilt rear end with posi rear end and 4:11 gears? I also want to keep the auto trans. will this affect the shifting pattern?
Last reply by prkrgrp, -
- 1 reply
- 1.6k views
I have a 81 280 zx with auto trans. i am rebuilding for street racer. can i get faster et with a higher rear end ratio?
Last reply by McZ, -
- 0 replies
- 1.6k views
How much more lift and duration if any, can you run on a E88 head with out changing the springs and making other mods?
Last reply by smg1404, -
- 10 replies
- 1.9k views
I'm rebuilding a F54. I took it to the local machine shop to get it hot tanked and all cleaned up (looks good). Anyway I asked about getting the crank, rods, and pistons balanced. He told me that he couldn't do it because he couldn't separate the piston from the rod without risking damage to the piston (because the wrist pins are pressed into the small end of the rod). Has anyone balanced the piston and rod assembled?
Last reply by 2ManyZs, -
- 2 replies
- 3.2k views
Hello, can anybody help me, i have found a cheap, motor from a datsun 260c, it was an auto (hopefully it hasn't been thrashed) i was wondering if it would be possible to put this in my 240Z with the head off the current motor on it. DOes anybody know if they are the same as the 260z motors, is it possible/worthwhile. ANy help would be greatly appreciated.
Last reply by Zedrally, -
Well I recieved and installed the 30mm chokes for my webers today. Boy howdy did that do the trick. I still ahve some tunning to do but the car pulls very hard right thru 6000 and keeps pulling hard well beyond. I have not pushed it to 7000 yet but close, I am sure it will go there if asked. I think I know why the small chokes were in there now. When I spoke to Mike at pierce manifolds, he said that if I had the webers with two progression holes there would be a flat spot when taking off as the throttles left the last hole. I never noticed this with the 26mm chokes. It is not a real problem but i noticed it tonight. Come to think of it my last set of webers had it too. We…
Last reply by smg1404, -
- 2 replies
- 2.7k views
what is the best head combination to run on a stock L28 with 72 Su's? is the N47 going to give me better emissions due to the exhaust liners or would the E88 be a better combination?
Last reply by St.stephen, -
- 1 reply
- 1.3k views
I just bought my first Z and I have a problem that I can't figure out. When I am idling and rev the engine the throttle fluctuates normally but it's in gear and lets say around 3500 rpms and I pop the cluch in the rpms stay a 3500 and will not drop down in till I shift into the next gear up. So I cleaned the carbs and lubed the throttle return spring and they feel ok. So I am wondering if any body thinks that the clutch is not fully disigageing and also happens to be worn just right that I am actually speed shifting. Thanks for your help. Madsoul
Last reply by 2ManyZs, -
- 28 replies
- 7.5k views
I'm considering replacing the stock air filter system on my 240 with a K&N system. I realize that without a lot of other work in the engine compartment (mine is all stock), I'm not going to see a huge gain in performance. Do you guys think it's worth it?
Last reply by smg1404, -
- 3 replies
- 1.9k views
Hey guys, Should the valve cover breather hose have pressure or vaccuum? I have vaccuum on mine ( 72' 240 ) I was under the empression that it would have a small amount of pressure out. The hose that connects the block to the pcv on the balance tube sucks vapor from the crankcase -- is this where the vaccuum in the valve cover is from??:cross-eye
Last reply by Royce, -
- 3 replies
- 1.6k views
On the front driver's side in front & below the 1st exhaust port, the tube that sticks out from the block....... Where does or what does that connect to ??? I have seprate air cleaners and I think it connects to the carb. balance tube, am i right ??? Why?? thanks for any input
Last reply by Ed,
-
Recently Browsing 0 members
- No registered users viewing this page.
jfa.series1
