madkaw

Okay, let me see if i am adding this up right. My air box dimensions are 3X5X22 which figures to be 330 cubic inches. So I am covered for my 150 cubic inch p-30---right?

Interested in this thread! I have also studied a bit about plenum size and I believe I have read the same numbers you have found. I like your design with the center inlet, just makes it tougher to fit in our cars. I am currently making an airbox for my 2.4, I get confused on the math to figure volume size of the airbox compared to engine size.

+1

I thought it had too much play for my liking. I probably loosened the rubber when I welded on new tabs to the mount. I tried to use a heat sink, but who knows it might already been bad. I had come up with a cable set up that I could run over the top of the tailshaft and moored at the mount using eye/bolts, but hadn't got around to hooking it up. This maybe also why I still get some clunk noise while blipping the throttle at lower rpm. Thanks for the conformation on that---aahhh-another thing on the to-do list.

I have a high speed driveline vibration around 100mph. It almost sounds like it has a rhythm to the vibration. I am running a 82 T-5 to a r-200. The driveshaft was supposedly balanced at the time I modified the shaft for the T-5 swap. I have also had the half shafts balanced recently. I am running the Rt mount and think I have driveshaft set-up right as far as angles. I modified my original trans mount to adapt to the T-5. I believe I might have compromised the integrity of the rubber on the mount since I welded on it. I can push up on the tail shaft and get movement without much effort( one arm push up). I guess my question here-would a loose trans mount just exacerbate a vibration or actually be the cause of the vibration? I was considering a modification of the mount to secure the tranny tighter to the mount-is there any consideration with that?

John, is your statement based on too much cam and compression to make even a low boost turbo set-up-just curious?

Thanks for the replies gentlemen. I might have a local connection, but I will let you know shortly. Again-thanks

It will be hard to build an engine with No Regrets. All of us are tinkerers, and are wanting to try something different. I sold off a low mileage turbo motor and now wish i kept it. I did build a strong platform to build on, so I can tweak to my hearts desire. No matter what block you use, it will take a lot of time and tune to see it's potential. Though my 2.4 is mild compared to a lot of these engines on this site- the visceral experience of sound and fun driving of this car keeps me engaged. Start mild then go wild with upgrades. I'm starting with SUs then moving on to Mikunis then maybe a bigger cam or turbo with mild boost and megasquirt.

I need a valve cover to cut up! So condition isn't much of an issue- I want to get away cheap here, so something close to Indiana for cheap shipping.

If anyone wonders why I picked the exhaust forum, it's because I had posted before about my dual exhausts on my L24, but never had really posted a good video of the sound. I had comments that the exhaust would not sound right on an inline motor, but I must disagree. I think it's a great compromise between the beefy sound of a v8 motor and the smoothness of the inline6. Does it do anything for my performance-don't know honestly, but I believe the SU's are somewhat of a restriction for this good breathing exhaust. The Mikunis are waiting for the airbox to be finished and they go on. I truly believe the Mikunis will wake this motor up combined with this exhaust. Please ignore the 3rd gear grind! Also ignore the geek driving this cool car!

Life is good-- a day -off and a cruise in the Z Turn it up!

watching this thread in hopes of answers for my vibration at 100+mph. don,t mean to highjack here, but would a failing tranny mount cause this also? I can under the car and push up on the mount and get it to move upward a good half inch with effort. Hope this question ties in with this thread?

There was a thread which i posed the same question-except it involved a Mikuni manifold. The general consensus was to leave it alone because there is a reason for the step-as you have stated. Unless your are building a race motor, I would leave the step there---IMHO

The ACC valve is right on top of the intake. In the picture below it is the tallest diaphram in the pic with the vacuum plug on it. You need to have that and a good working VCM( sits under the mass air sensor)

Are you getting any closer to another run of axles? About ready to throw my hat in the ring!

The 280zxt starts a new life with a new owner--The Z Bar So I have posted here that I bought my daughter a 1981 280zxt a couple of years ago. It turned out to be a fun car for here for a couple of years at college-even amongst all the fixes it endured. Her traveling became too far and often for the car to be her daily driver so we decided to part with it. She didn't mind too much since her replacement is a 2007 WRX, but it didn't compare to the fun of the T-top Z. I put the car on craigslist and had to endure the various low ballers and no shows. Then some guy says he wants to buy it and wanted to drive up from Louisville(about 2 hours) to come get it. He had been looking for that specific year,color. He told me he owned a bar in Louisville(ZANZABAR) and he would bring me a shirt---sure, I'll believe you when i see you. Anyway, he showed and loved the car, and brought me a shirt and drove off to Louisville. I'm still not buying the bar owner bit---but his cash spent just like money! He invited the family down for lunch if we were in the area. Just so happens my son was swimming in at a swim meet at Lakeside in Louisville, so we stopped in. Well the picture tells it all and the Z bar is definetly worth checking out if your in the area--very cool.

Damn,don't know how you do anything in that kind of pain. Glad to see you got KTM's stuff, I imagine it's nice, but I thought that block was going to be for a turbo? I have been following the thread because I still mess with the L24 block. Not many folks still trying to tweek power out of them, they just move on to bigger and better things---but this is HybridZ!! It's funny you mention the ticking, because I am dealing with the same thing. It almost sounds like an exhaust leak and my clearances are also to spec. For now i just drive it!

any updates on the L24 build?

Got it! I was trying to over complicate things by thinking hard lines from the log to the manifold. Thanks for the input guys.

Thanks for the tip Rossman, but not sure how to connect that to each individual runner. I just read your build thread and I know this is log is a simple project for you, but I'm not quite as savvy when it comes to this machine stuff. By the way, love your build and would like to go your same route some day, but for now -baby steps! Also love the avatar. I was showing my 14 year old son you tube videos of Ultraman the other day and he was cracking up.

that would be great-thanks

Here is a few more pics showing all the work-- which kind of tells the story. Welded and reinforced the diff brackets. Welded a stud on to the control arm pivot bolts. Slotted the holes on the diff brackets to allow for side to side movement. Attached control arms with adjustable rod ends.

Getting ready to mount my Mikuni triples with the shorty manifold. My manifold is tapped on each runner and I want to take advantage of that and create a log for a vacuum signal. I would like to make something that would double as a booster signal and an MAP signal. I have read that it needs to be removable in order to properly sync triple carbs. I'm not even sure where to start on this project and I am not having much luck searching this. Anyone done this and can I steal some ideas.

I would try and pick-up an earlier e-88 head if you can find one cheap and redo it. The later e-88 chamber design is not that great and takes a lot of work to perform.

I will add that a member on CZCC (steve911tt) is dealing with issues with detonation using the later e-88 head. He is limited to 30 degrees total advance. I know it's not what you want to hear , but information is always good. Of course everyones set-up is a bit different, but I think the chamber for the late 88's need the most work.