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
-
- 2 replies
- 2.2k views
Hi all, Got my car dyno tuned yesterday, the jetting in the carbs was wrong and I knew it all needed some work. They ran it up, found out what jets needed changing etc on the carbs, changed the jets and fine tuned. After all that they ran it up one more time to check the results and this chart is the result of that. Remebering that I didn't go in and say "How much HP does this make" this was purely a tuning run and the chart that resulted. I was wondering if these are the sort of results I should be expecting from an L28 and how it rates as far as other peoples engines go? Also this is the HP / Torque at the wheels, how do I then convert it to HP at the flywheel? Thi…
Last reply by spudz, -
-
- 1 reply
- 1.4k views
I had trouble with my engine after it had been in storage for 15 years. The bottom line is two valves hung up and I removed the head to have it rebuilt. Prior to removal of the head the compession of four of the 6 cylinders was about 200 psi. The head rebuilder found that the head was out of flat(warped) by .023 inches and said machining it flat would exceed the nisson recomendation. I need a new rplacement or some advice what to do next. The rebuilder suggests sending it to a place in Canada where they would anneal the head and reheatreat and machine. What do yu think
Last reply by hmsports, -
- 3 replies
- 1.4k views
OK. Chritsmas is coming.... Just kidding! I'd like to know which CRANE Cam gives the best perf for the $$$ without sacrificing the driveability of the car for an almost daily car??? Your inputs are appreciated!:tapemouth
Last reply by guy_geo, -
- 2 replies
- 1.2k views
What did you do for a radiator? custom built radiator? does the skyline one fit? did you get the z radiator core increased or just use the z one as it is? Thanks
Last reply by Cuong Nguyen, -
- 2 replies
- 2.9k views
What should the accurate operating temperature be when the engine reaches its normal temp? The scale starts at 120 f and my car is running over half way of the meter.
Last reply by Ed, -
high-rpm stumble 1 2
by BadDog- 16 replies
- 2.8k views
I'm getting a little stumble right after 5,500 RPM (I can even hear the exhaust crackle). It then immediately smooths out and keeps revving, so I don't think it's for lack of fuel... My setup: stock '73 engine, round-top SU's, stock ignition, motorsport equal-length header. I'm running the timing a little advanced, about 9 or 10 BTDC... Any ideas of what to check?
Last reply by BadDog, -
- 4 replies
- 1.9k views
I just want to know if the addition of headers on my engine will render the car more noisy (I mean a lot ) or is it just a nice mellow tone??? Thanks!:tapemouth
Last reply by guy_geo, -
- 2 replies
- 1.2k views
Ok -- seasoned veterans and rookies alike! How did you get the crank out of your L-series? I have the main bolts out, but the FSM calls for some special Nissan tool. I will go get one if I have to, but I would rather find out if there are any hobbyist ways to do this. I can post pics if anyone wants to see what I mean. Thanks!
Last reply by phi22b@ck, -
- 5 replies
- 1.5k views
Well, I was going to use an L28 engine and rebuild it to high performance, but that plan has fell thru, I can't get that engine. I still want to build up a performance engine for my 240z, but I don't know what I can do. I wanted an L28, but I can't find one locally. I was wondering if there would be any difference in useing a different engine to build up. I am going for a 280 engine atleast. Would it be alright to use one off a regular 280z, like the L26 engine or something? Or is there something special about L28s that I should wait for as long as it takes to find an L28? Do anyone live near me (I live in Nebraska) know where I could find one? Thanks
Last reply by smg1404, -
280ZX Dizzy
by dohc- 4 replies
- 2.4k views
Hi Guys, One question that I can't find an answer to on this site or in any of my reference material. Does the 280ZX Dizzy use the Hall effect to feed back to the ECU? If so does anyone have the stats on it (ie voltage high and low?) And while on the topic, where is the crank angle sensor on a 280Z(X) efi engine? Is it in the spindle with the Dizzy like later model nissan engines? Also, does the 280Z(X) efi engine run an O2 or knock sensor? And does anyone know what brand of computer is used in the efi nissans? I think that's all! Any help is appreciated but especially to do with the dizzy as I'm trying to source an efi dizzy for when I efi my 260Z. Thanks, Ross.
Last reply by dohc, -
- 10 replies
- 2.4k views
I bid on a set of chrome headers on ebay. They are off a 1978 280z i think. they have round exhaust holes and the pipes are 2" diameter. Well these things fit my 1972 240z? i sure hope so!!! oh yeah and there is a place in Salina Kansas called Industrial Refinishings, they will triple chrom about anything for a very reasonable price.
Last reply by 2ManyZs, -
- 6 replies
- 1.5k views
The 240Z that I bought sat for 10 years but it was started from time to time as the PO tried t get it running. The last unsucessful attempt was about two months ago (I've had the car for 2 1/2 weeks now). I am including a snippet from an email that a friend sent to me to see if you guys think I really need to do all this stuff (not that I understand half of it anyways). "The z is cake but you need to check several things before trying to crank it. If it's sat for a while the cylinders need to be fogged with lube and the engine needs to have the oil pressure primed or else it will score the cylinders and possibly tear up something. The fuel is most likely trash too so th…
Last reply by smg1404,
-
Recently Browsing 0 members
- No registered users viewing this page.
