Derek's EFI-L18 4 Door MEGATHREAD

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S15DET
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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby S15DET » 30 Oct 2012 09:19

I LOVE THESE PICS AND VIDEOS, there, now I've got to get to one last event before winter, you've inspired me!!

Derek
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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby Derek » 30 Oct 2012 10:06

Awesome! That's all I could hope for -- inspiring anyone to get out there and drive the wheels off their 510!


A repeat pic for the new page:

"Took another sip of the potion, hit the three-wheel motion"

Image

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S15DET
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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby S15DET » 30 Oct 2012 10:51

certainly was "a good day"

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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby goichi1 » 30 Oct 2012 12:41

Makes me wish I would have put the coupe on a track at least once. I sure wish I had a track car now! That looks like a ton of fun.

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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby Ash510 » 30 Oct 2012 16:31

Wow I just had a chance to look at your video, and that looks like so much fun! I was thinking of doing the driver training at mission next year, at least get my car out and have some fun with it.

I really like the camera angle you have in that video, shows all the suspension travel and driver input.

Thanks Derek .. Ps what tires are you running?

Derek
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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby Derek » 30 Oct 2012 17:50

I am running 185/60R14 Dunlop Direzza Sport Z1 Star Spec (what a name). They are the same tire, but a smaller size than what we run on our Lemons CRX, so I am used to the feel of them and they hold up great on light cars. They are way more communicative at the edge than my old Kumho V710s, which produced ridiculous grip, but were maybe less over all fun to drive (and don't last). I'm also enjoying not having to pack and mount a second set of wheels every track day, and my brakes being able to keep up with the tires on the car. The 30 tread wear V710 R-compounds would soften the brake pedal by the end of a track day. The Toyo T1-Rs that were on the car just before the Dunlops were similarly fun on track, but not nearly as fast.

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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby HudsonMC » 31 Oct 2012 06:42

Derek wrote:I am running 185/60R14 Dunlop Direzza Sport Z1 Star Spec (what a name). They are the same tire, but a smaller size than what we run on our Lemons CRX, so I am used to the feel of them and they hold up great on light cars. They are way more communicative at the edge than my old Kumho V710s, which produced ridiculous grip, but were maybe less over all fun to drive (and don't last). I'm also enjoying not having to pack and mount a second set of wheels every track day, and my brakes being able to keep up with the tires on the car. The 30 tread wear V710 R-compounds would soften the brake pedal by the end of a track day. The Toyo T1-Rs that were on the car just before the Dunlops were similarly fun on track, but not nearly as fast.


That's common with the race slicks. I had the same experience jumping from the V710s on our RX-7. Race slicks are great for the lap times, but I always have more fun on a road tire like the Dunlops. :)

The star spec is such a great tire. It's crazy that there's almost nothing on the market right now that can compete with it in the same price range. Maybe the Azenis from Falken, but I think I still like the Star Spec, but my experience with the Azenis is limited.

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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby S15DET » 31 Oct 2012 07:28

I run the Potenza RE11's and love them. They are in the same class as the Azenis (ran 2 sets of these on my 510) and the Star Spec.

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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby speeder » 07 Nov 2012 12:46

+1 on the Dunlops. I'm running the same size, 185/60 14", on my 510. They are a fantastic combo of grip and predictability. I just hope they keep making this size.

Inspiring pics! Thanks for posting them!

Jon
'72 4 door 510, '68 2000 Roadster

Derek
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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby Derek » 04 Dec 2012 08:54

With the rainy season starting and my 944 turbo not starting reliably, or having working rear defrost or wipers, I decided to fortify my collection of white 4 doors and got my 510 a new parking buddy. 2010 GTI 6-speed w 20k miles. The newest car I have ever owned by 18 years. Direct injection, Bluetooth and blinking side mirrors oh my! FWD is a fundamental bummer, but it's mostly for my wife, who loves the car and it (and non-defeatable stability nannies) will keep me from tracking it. Only mods will be a new set of wheels and rubber. Pics demonstrate even new small cars are huge -- the GTI is an inch longer and nearly nine inches wider than the Datsun and then +1000 lbs!

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In 510 action, I repaired the last alt that broke -- one of the buses that solder to the windings had split due to the case bolts backing out. I've soldered it back together, and reassembled the case using high strength Loctite. I did a better job lining up the belt by swapping pulley spacers, it was about 2mm out of plane before. I also purchased a brand new Remy unit which I prepped with Loctite and have ordered a slightly larger pulley (4") from Summit racing (along with a VDO voltmeter) to put on the new one. The old guy will be the ready-to-drop-in spare.

I also purchased a new PC545 battery as the car was having problems starting (and the old battery was 6 years old) but this hasn't seemed to fix it. Really strange, some times it happily cranks over like normal and some times it is really sluggish and turns over at like 2Hz (120rpm) or slower. It almost always catches though. All the connections and contacts in the system look good. The intermittency of the problem is annoying and mysterious. Any clues?

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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby okayfine » 04 Dec 2012 09:26

Bad/cut battery cable? Issues with the starter?
Because when you spend a silly amount of money on a silly, trivial thing that will help you not one jot, you are demonstrating that you have a soul and a heart and that you are the sort of person who has no time for Which? magazine. – Jeremy Clarkson

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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby andrew.lori » 04 Dec 2012 11:56

Hey Derek . I just went through your sting and have a question. You said at the beginning you had your Dad ship you his L18 from Ontario. The pictures of your dad that you posted looks like a guy I knew in the 80's from Ottawa his name was Scott Ha**#@*n. Any chance you dad's name is Scott ??
Just being Curious.

Andrew
1966 Sunbeam Tiger MK1A
1970 Datsun 510 CASC Road Racer ( to be restored )
1972 Datsun 510 SR Monster Sold it
1977 Datsun 200SX
1973 Toyota Celica
1972 Triumph GT6 SCCA Vintage Race Car / Money Pit
1972 Mazda 808 ... 39k original Miles

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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby Derek » 04 Dec 2012 16:16

Nope, my dad's name is Neil, and is from Georgetown Ontario.

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andrew.lori
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Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby andrew.lori » 04 Dec 2012 19:56

cool I just had to ask ... ya never know :)
1966 Sunbeam Tiger MK1A
1970 Datsun 510 CASC Road Racer ( to be restored )
1972 Datsun 510 SR Monster Sold it
1977 Datsun 200SX
1973 Toyota Celica
1972 Triumph GT6 SCCA Vintage Race Car / Money Pit
1972 Mazda 808 ... 39k original Miles

Derek
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Joined: 04 Jul 2003 17:19
Location: San Francisco, CA

Re: Derek's EFI-L18 4 Door MEGATHREAD

Postby Derek » 16 Dec 2012 15:38

I did a bit more starter motor investigating and threw a clamp meter on it to see the current draw while cranking. I didn't have a chance to test a super slow crank, but a slower than it should be crank had it measuring 330A -- which seems like an awful lot. Doing a bit of digging, high current, slow cranking is an indication that the starter is probably done. If the current was low, it would be an indication of a poor connection.

Any suggestions for lighter weight bolt in options for the L-series?

A little bit of digging find this: viewtopic.php?f=2&t=9527&hilit=gear+reduction+starter#p96502

Oooh looks trick! Ordering one tomorrow.


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