johnc

Quartermaster, AP, and Tilton all make multi-plate clutches in 7.25", 5.5", 5", and 4.5" diameters that can installed behind the L6. Go search their web sites. I ran a Quartermaster 5.5" double disc clutch behind my L6.

It doesn't lower the car. Ride height is determined by the spring/strut not the LCA.

Move the pivot up the distance measured above. For a lowered 240Z is puts the LCA pivot more in line witht he inner pivot of the tie rod. This reduces bumpsteer. You would need to align the car. If you're car is at or near stock ride height then I wouldn't make any changes. No, you just need to support the engine with a jack or blocks while you unbolt the crossmember and drop it out from under the car. Probably, but its much easier on a bench and you're more likely to get everything lined up correctly if you're not on your back under the car.

A rough rule of thumb is that for engines in the L6 displacement range the plenum should be a 1/2 liter larger then the engine displacement. For a 2.8L engine the plenum should have an air volume of 3.3L.

Another thing to remember is that these cars a 30+ years old and almost every one has been in at least one wreck. Sometimes the repairs made years ago were not done correctly and now the panels are off. That makes installing a body kit even more difficult because the kit might be off a bit and the panel itself is off too.

Search, search, search. Your path has been blazed by hundreds of folks here on this site. My suggestions: 1. N42 or F54 block - at the power levels (anything under 400hp) you're thinking about either one is fine and I would use which ever block I could find the cheapest. 2. N42 or P90 head - for the same reasons as above. 3. Any of the Nissan 5 speed transmissions will work for your application.

What spotfitz said. Since you have to remove that crossmember to repair or replace it, I would got ahead and relocate the pivot up .750 to .875 inches.

One word son, Plastics.

Unfortunately, things are not that simple. A R180 with a Nissan Comp LSD or a Quaife installed will be stronger then an open two side gear R200. But, a R200 with either of the above diffs installed will be very strong and works well for 99% of the folks here on HybridZ.

What people feel through the steering wheel is "kickback" which is exacerbated by lowering a 240Z more then an inch or two. Kickback and bumpsteer are really two different things but they are related. Bumpsteer is more a change of direction in a corner that requires a steering correction to maintain the original line. The steering wheel doesn't turn as a result of the bump but you, the driver, have to turn the wheel because the car is not going in the direction you intended. Bumpsteer is more a one wheel thing. Kickback is when both wheels have their direction changed by a bump and thus causing the steering wheel to move. Lowering the 240Z increases toe out and negative camber and both increase kickback. Why? Toe out and negative camber reduce directional stability and thend to increase any steering affect from bumps. So, you can lower a 240Z and then realign the front suspension back to a toe in condition and set the camber back to factory specs and you shouldn't feel an increase in steering kickback... Unless you've lowered the car to the point that the front LCAs are pointing up. Then things are so screwed up the only fix it to get those LCAs back pointing down and that requires relocating the inner pivot and/or bumpsteer spacers.

I was never told the exact numbers but Jim did say that all 6 exhaust ports flowed exactly the same and the exhuast port flow numbers were within 5% of the intake port flow numbers.

Well, on the L6, your efforts are better spent improving the exhaust side. Once you get the exhaust side working (in particular the exhaust ports on 3 & 4) then efforts on the intake side will bear fruit. The exhaust ports on the L6 head are the limiting factor in getting good flow on the intake side. Below is a shot of the ports on the best flowing L6 cylinder head Sunbelt ever built (as of early 2003): There is a lot of welding and shaping done on the exhaust ports on 3 & 4.

"Single shear" defines a connection where the connecting bolt, pin, pivot, etc. is only connected to the frame, crossmember, beam, etc. on one side. The LCA connection on the BMW pictured above is a bolt that passes through the LCA and is threaded into the crossmember. The stock 240Z front LCA connection at the crossmember is "double shear" because the bolt passes through the crossmember, through the LCA, and through the crossmember again. Single shear connections are generally thought of as weaker then a double shear connection. But a properly engineered single shear connection can be strong enough.

I just crawled under an E36 BMW and yes, the front LCA is in single shear through a ball joint. Go figure...

FYI... Haulmark, Featherlite, and the other name brand trailer manufacturers don't make "cheap" trailers. They make "inexpensive" trailers.

Actually, by line length, the LR is furthest away from the master cylinder.

Always remember, you get what you pay for. A cheap trailer is always a cheap trailer whether its new or used. Look out for trailer manufacturers that put 6 lug hubs on 5 lug axles. Check to make sure there are brakes on all 4 wheels. Pull a wheel and drum and inspect the brakes (even on a new trailer) to see if they are single shoe (yes they exist) or double shoe. Look under the trailer and see how many crossmembers are in the frame. Check the flooring. If its plywood, find out what kind of plywood and how thick. Inspect the wiring and see if its loomed its entire length and the connections are sealed from moisture. I've been looking at new and used enclosed trailers lately and there are some new trailers out there that are very scary.

Owen, Where did you get that picture of the LCA on a BMW? I'm surprised that someone would mount an LCA in single shear.

I'm just amazed by the bumbling of the UN: http://diplomadic.blogspot.com/2005/01/more-unreality-but-dutch-get-it.html And, sadly, it gets even funnier! http://diplomadic.blogspot.com/2005/01/just-too-good-for-mere-update.html

That be me. Puls I cna't spill.

MOMO makes some nice leather universal fit shift boots and Sparco makes a Nomex one that I've made fit a 240Z.

I ran 25.2" tall tires on my 240Z and had a .87 overdrive 5th gear. Top speed was about 145 at redline (7,500 rpm) in 5th with a 4.38 rear gear. For a street version of my car I would most likely run a 3.90 or a 4.11 rear gear unless I spent a lot of time on the highway. Then a 3.70 rear gear would be preferred.

Its possible and has been done with the 426 Hemi. Saw one at Sears Point on a Wednesday night drag racing meet while I was loading up the 240 after a day of road racing. Chevy small block swaps are much more common and an order of magnitude easier and cheaper to accomplish. Spend a lot of time searching this site. All the information that exists for V8 and other engine swaps into a 240Z is here.

On December 6th, 2004 Pablo Paredes, a volunteer US Navy Sailor, refused to board the U.S.S. Bonhomme Richard, a US Navy assault ship saying, "I don't want to be a part of a ship that's taking 3,000 Marines over there [iraq], knowing a hundred or more of them won't come back," he said. "I can't sleep at night knowing that's what I do for a living." Mr. Paredes has since become a cause celeb for many anti-war groups: http://www.notinourname.net/troops/pablo-paredes.htm Over the weekend, after being diverted from its voyage to the Iraq theater of war, the U.S.S. Bonhomme Richard departed Guam on its way to Sri Lanka. The ship is expected to arrive later this week to begin providing medical relief and logistical support for the victims of the recent tsunami's in the Indian Ocean. http://www.japantoday.com/e/?content=news&cat=7&id=323705 EDIT: Mr. Paredes was a sailor, not a marine.

I'm even more of a crumudgeon when it comes to the subject of adjustable LCAs for the 240Z. I think they are a solution to a problem that doesn't exist. The stock parts are light, strong, and, with just a little fiddling, work very well on a road race track even with 10" wide wheels and 300+ horsepower.