heywier427 Posted May 6, 2016 Report Share Posted May 6, 2016 Wrong side of the states but: https://longisland.craigslist.org/pts/5514484621.html Quote Link to comment
Icehouse Posted May 7, 2016 Report Share Posted May 7, 2016 I didn't know you had a build thread! Cool to see the pictures bigger than my phone screen! Quote Link to comment
Jester Posted May 7, 2016 Report Share Posted May 7, 2016 The custom pistons i had made had some problems with the design. Unfortunately they damaged the block and crank, I can get them repaired but will cost more than i'd like. Did you not turn the engine over by hand during assembly? I can't imagine it would have spun smooth enough to not feel something that would eventually take out the lower end. What happened. Quote Link to comment
DATN510 Posted May 7, 2016 Author Report Share Posted May 7, 2016 The rist pin bore on the pistons were milled to small, causing the pin to seize. Something that would only have been noticed at manufacturer. They are making me new ones for free. Quote Link to comment
Jester Posted May 8, 2016 Report Share Posted May 8, 2016 What about the cost of all the parts that broke because they were made wrong? Quote Link to comment
WAGON JON Posted July 8, 2016 Report Share Posted July 8, 2016 Awesome build! Whats the latest? Quote Link to comment
Jester Posted July 9, 2016 Report Share Posted July 9, 2016 Thanks for bringing this one back up top. I too would like to know. Quote Link to comment
DATN510 Posted July 11, 2016 Author Report Share Posted July 11, 2016 Hello all, Here is an update. Had some problems with the custom pistons, the pin holes were milled to small and seized in the 2 and 3 cylinders. Causing lots of damage. I had to buy a new crank, that i got from Ratsun. bore the block to 3.46" due to scoring. I just got in the mail the new custom pistons, so hopefully ill have the engine back soon. I did do some work on the engine bay. I tucked the wires through the frame and repainted the engine bay all white. ill post some pics soon and keep you up to date. Thank you for asking about the progress. Mike Quote Link to comment
DATN510 Posted November 14, 2016 Author Report Share Posted November 14, 2016 Hey guys and girls, Hows everyone doing? Well here is an update. I got the engine all put back together and installed, with the new tranny, clutch and of coarse the turbo. I'm having alot of problems hopefully you can help? My timing is spot on, but to get her running I have to drop the oil pump and set the rotor 2 slots clockwise to get her going. I have 2 dizzy's i'm working with, the matchbox dizzy and the custom optical dizzy with the megasquirt aftermarket 24-1 disk. The timing at idle is 30-35 degrees, I do believe it is BTDC. I did have her running with the Nissan trigger disk, but when I gave her gas it just died! I am so frustrated with this! and would almost like to go back to the fuel injection. But it would cost to much time and money. Please someone help! Of coarse I will post pics soon. Thanks. Mike 1 Quote Link to comment
Icehouse Posted November 14, 2016 Report Share Posted November 14, 2016 I can't believe how much trouble you've had with the turbo build! Jezz! Quote Link to comment
DATN510 Posted November 14, 2016 Author Report Share Posted November 14, 2016 Yeah it has been! especially with the megasquirt! Thanks Jezz. Quote Link to comment
Greywolf Posted November 19, 2016 Report Share Posted November 19, 2016 This seems to be an old thread but if anyone is interested: About 20 years ago when I built a EFI L18 510 for a customer/friend. I used a 280 Z ,manifold, cut out the two center runners, reworked the plenum to match up.. That was the most difficult part on the manifold as when the center was cut out there was a mismatch in alignment. I used the EFI parts from a 200sx and electronic ignition distributer from a later l20. I was able to tweak the air flow meter and some other settings. It worked out great. I don't remember a lot of the details after 20 years but I built some pretty mean 510s before I turned the shop over to my son. I probably notched the intake ports to be like the 280. Quote Link to comment
DATN510 Posted November 26, 2016 Author Report Share Posted November 26, 2016 Hello everyone, I have a really good question for ya!So I did some more research regarding my timing issues that i've been having some problems with, and came up with a possible solution. As far as the timing issue I believe I have is that my cam is opening the valves to soon, and not allowing the full amount of fuel to mix and compress. which means I believe that the spark is to soon, only igniting maybe half of the mixture. my question is, can this be fixed through the distributor timing or is it a mechanical issue? Where I have to set the cam lobes back a tooth or two on the sprocket. Of coarse I know about the valve clearance hitting the top of the pistons. In the new forged pistons I have gotten< after the old ones seized the engine due to a design issue. They placed a grove at the top of the pistons where the valves come down at. The old pistons did have a make on them where the pistons did hit the valves, but didn't damage the valves. although that was the only time I had boost. at this time I have no boost, I did a boost leak test and did have a few leaks and fixed them. I did some thinking about the distributor and believe that no matter where i align the distributor, I wont be able to get proper retard to get this to work right.I did get the new CAS distributor to get the car started in toothed wheel mode with the Megasquirt, but unfortunately my fuel pump relay started turning off and on. Causing only two of the four injectors to work. which is another question I have if anyone can help me with? I know Matt Crammer is on this site and he's the megasquirt guru! hopefully he can chime in?Thank you in advance for any info on my problem.Mike Quote Link to comment
DATN510 Posted November 26, 2016 Author Report Share Posted November 26, 2016 i will post pics soon. Quote Link to comment
DATN510 Posted November 26, 2016 Author Report Share Posted November 26, 2016 [/url]">http:// Here's a pic of the engine bay, I tucked the wires, sealed some holes, some bondo work to smooth the edges, did a base coat and 3 coats of clear Painted the block and installed. If you can see the wires at the top right? ARP bolts and timing cover. Head on! Turbo on with some wraps. Plenum and fuel rail. Starter, filter and some hoses. Ill post more later. Take it easy everyone! 1 Quote Link to comment
mrbigtanker Posted November 26, 2016 Report Share Posted November 26, 2016 Wow man that is beautiful. I want a turbo manifold now. If I can say one thing is and don't hate me is your fuel line. It would look so much better routed up from behind the engine instead of the stock location from the passenger side all the way over. But wow that is bad ass. Bravo my friend bravo. 1 Quote Link to comment
DATN510 Posted February 28, 2017 Author Report Share Posted February 28, 2017 Hello all, I know its been awhile. i have more pics to post soon. Also does anyone have an adjustable cam gear for an L series engine? Im having problems with compression and need to set back the cam. any help would be great. Thanks, Mike 1 Quote Link to comment
Xnke Posted April 7, 2017 Report Share Posted April 7, 2017 Datn510, I use the Kameari timing gear for my L-28 builds, the same gear will work for you. it's pricey, around 200 bucks delivered. I had to get mine in from Japan when I had some friends stationed at Okinawa. What problems are you having? Retarding the cam will delay cylinder pressure and help with detonation, but won't change compression, advancing the cam will build cylinder pressure at lower RPM and sometimes increasing the detonation risk. You can use the slack holes to advance the cam 4 degrees or 8 degrees, and by slipping 1 tooth on the chain you can retard by 9 degrees. So, move from pin hole 1 to 3, then slip a tooth, that retards the cam 1 degree...that's all the usable retard you can get in a stock gear, but you could advance it up to 8 degrees if you need to advance the cam. Quote Link to comment
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