Recent Posts

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71
Engine & Transmission / Re: LZ9 engine swap help
« Last post by ★ Murcie-Me ★ on May 04, 2025, 10:40:53 PM »
Last week I was also in Las Vegas and picked up and OEM knockoff of the LP670SV rear bumper. I have wanted to complete the changeover for years now, but building the rear bumper from scratch and making a finished piece would have taken me almost 3 weeks, so I never had that kind of time to do it. When I saw they had this piece at a shop in Las Vegas for just 2K, it was a no brainer lol.
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Engine & Transmission / Re: LZ9 engine swap help
« Last post by ★ Murcie-Me ★ on May 04, 2025, 10:18:59 PM »
Ive also been working on the exhaust headers, which has been a real PITA.
Keeping all the tubes the same length and having to fit them in the confined space of the Fiero engine compartment (especially the rear side of the engine where it sits against the trunk wall) has been a challenge. I had to temporarily mount the engine to the 4T60 trans to make sure I was staying clear of that as well. The rear of the engine piping is done now, I just have to finish welding up all the seams. I couldnt imagine trying to do this with the engine in the car, there would be no room to work at all. The front of the engine should be a lot easier, since I have over twice the room between the engine and the cabin firewall to fit additional piping.
The header is a stepped design, starting out at each cylinder with 1.5" tubing. After 18" from the valve, it steps up to 1.625" and then travels another 18" to a 3 into 1 full merge connector. It then steps up to 1.75" and goes another 18" to a Y pipe, where it meets up with the piping from the other side of the engine. The 1.75" piping coming off the Y connector travels all the way to the rear of the car, where it megaphones up to 2.5" in the last 1 foot of piping.
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Engine & Transmission / Re: LZ9 engine swap help
« Last post by ★ Murcie-Me ★ on May 04, 2025, 10:00:32 PM »
I havent posted any updates for a while, I've been busy trying to finish up several other projects so I can get back on mine.
I finished Ricos car, but its coming back this week for me to paint the wheels and fix his drivers side door hinge lol.
I got a lot done on the engine, its all reassembled now and I've been making custom parts to overcome some design issues. I wanted to use my Fiero alternator since I have a brand new one, but the stock Fiero upper alternator mount doesnt fit on the LZ9 engine. Also. the mounting holes in the end of the head are used for the mounting the stock coolant manifold, which was not going to work for my installation anyway.
I came up with a plate that would mount on the stock coolant manifold bolt locations, but welded on a 1.5" aluminum tube for a coolant hose to clamp onto. I them welded up a aluminum tube that would tie the two together, then branch off to a fill cap and thermostat housing. I also ran a hose from the thermostat housing back to the heater return port on the water pump. This way coolant is always passing by the thermostat to open it once it gets up to operating temperature.
I incorporated a mounting point for the upper bolt on the alternator on the coolant flange, and built a lower swing mount for the bottom. I also added a reinforcement brace to the upper mount just to make it more secure.
74
New Member Introductions & Bio's / Re: Hello from California
« Last post by TimeWaitsForNo1 on April 27, 2025, 11:04:35 PM »
Freddy? Not that I am aware of. As far as I know it came from Ronald Shelby out of Richland, Washington. Maybe Freddy was in the middle of the deal I don't know. If it comes to him being the builder I've got a few questions.
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New Member Introductions & Bio's / Re: Hello from California
« Last post by RUNDLC on April 26, 2025, 09:57:16 PM »
So you picked this up from Freddy?  I thought they were going to remove the motor and trans from the car?  I spoke to them awhile back about this car. Congrats I know the guy that actually built that car. I'm in Riverside county about ninety minutes from you.
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Cars & Projects For Sale / 2000 Diablo WANTED!!!
« Last post by Iwantthat on April 20, 2025, 05:02:11 PM »
Hi I'm currently looking for a diablo replica hopefully in north America! can be anywhere in the world as long as they ship as well! Please let me know I've been on the hunt for 3-4 months now  ::help
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New Member Introductions & Bio's / Re: Hello from California
« Last post by TimeWaitsForNo1 on April 18, 2025, 08:49:45 PM »
San Diego
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New Member Introductions & Bio's / Re: Hello from California
« Last post by TimeWaitsForNo1 on April 18, 2025, 08:45:15 PM »
Hey Thanks for replying. There is a you tube video (https://www.youtube.com/watch?v=qzOzlre54cI) .Showing exactly that. I just don't know if it was ever working correctly to begin with. My dad bought it 20+ years ago and I never saw him drive it. He got more interested in a GT 40 build.
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New Member Introductions & Bio's / Re: Hello from California
« Last post by ★ Murcie-Me ★ on April 17, 2025, 07:20:53 PM »
Welcome! What part of California are you in?
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New Member Introductions & Bio's / Re: Hello from California
« Last post by lambobuilder on April 16, 2025, 09:16:53 AM »
It could be that the slave cylinder is bad and not depressing the clutch sufficiently to release the clutch. With a hydraulic clutch if there is not sufficient fluid it won't work properly. As his note said, check everything from clutch reservoir, lines and slave cylinder. Should be easy enough to diagnose.
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