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Watson

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Everything posted by Watson

  1. I started making a hydraulic e-brake for the Datsun using a beer tap handle, a Honda Civic clutch master cylinder, and some steel. Almost done, just got to add a swivel to the lower joint and clean it up. Don't make fun of my welds; I know I suck.
  2. I need to test the rev limiter to, you know, make sure it works. Yep, it works. I can't wait to take it to the track!!!!
  3. Alright, I got the shift knob for Watson epoxied and ready to be drilled and tapped. The epoxy looks like beer; neat! Tomorrow I'll start scavenging for parts for the hydraulic e-brake that the tap handle will be used for.
  4. Fender-exit exhaust. Its only kind of ridiculous.... I can't wait to get to a track to see how many sideways I can get with this thing! I also can't wait to get some dyno time to get the timing map optimized.
  5. A buddy of mine and I decided to do some random what-nots to the Datsun. We made this. A wooden dash and a fender exist of the exhaust. Pics of the final exhaust setup once the stainless steel plate is on to take up the slack cut-out area. Video tomorrow of the sound. I can't wait to start it up!
  6. Speedo not accurate? Use this. http://www.wolframalpha.com/widgets/view.jsp?id=87d93f94d5ff7211456d9742e970d861
  7. It didn't. I couldn't solve the timing issue in time.... So I installed a CAS today because the optical trigger decided to walk around and screw everything up. Now I have rock solid timing and I can finally take it to redline! It goes real fast. Time to get it on a dyno for proper top end tuning.
  8. Nevermind, everyone. I ended up just getting a 36-1 CAS to put straight onto the crank pulley.
  9. I found the problem to all of my issues. The shutter wheel for the optical trigger was moving. The low sound of the engine was because the wheel rotated so far out of phase that my timing was very out of whack, thus altering the running quality and sound of the engine. (Verified this scenario with a timing light) The upper RPM cut was again because the wheel would keep moving out of phase. I'm done with this distributor. I'm going to get a proper CAS and EDIS system for this car.
  10. Like the title says, I'm looking for an 82-83 L28ET distributor with the shaft to the oil pump.
  11. Now this was a bit strange. I've been trying to get my pulse width modulation setup correctly on my megasquirted L28E+T (N42 block and head featuring a turbo, hence the 'plus') because for the life of me, I cannot rev past 5000 rpm under full boost, and only under full boost. Well, I've had positive results with adjusting the injector characteristics, although I'm still not past 5500 rpm; maybe with more tuning I can see 6500. THE ISSUE, SORT OF: So when I went to make a second gear pull to test things out, the engine began to fall on its face at 5500 rpm (expected) but afterwards, it sounded so much deeper and louder. It sounded like the car's balls just dropped and it had become a HUGE Mac truck. When I shut the car off and restarted it, it was normal. What would cause this? I'm just curious. My exhaust setup is simply a three inch pipe off the turbo for about six feet, so nothing could have blown out, exhaust wise, to cause such a low rumbly loudness. I wish I had a video to demonstrate this. It sounds normal again so its not really an issue, now, but does anybody have any insight as to what would cause this?
  12. This thread may be a little dead but I've still been working on Watson. I actually have my first event coming up on the 19th and I've almost got everything sorted out. Here's a small shake down run. Just a couple more parts and we should be solid. Oh, I should also note that I did end up replacing the entire fuel system. Rust in the tank and lines is not conducive to a healthy engine. Gross. Shake down run.
  13. I feel there should be a new rule to posting items for sale. BE WILLING TO SHIP. Waiting for weeks to ship and then not even responding to messages is ridiculous. I always do whatever I can to get items out when a payments is sent because I would expect the same from anyone else. If you're too busy to ship items, you shouldn't be selling them. I won't bust out the user, yet, but there needs to be some form of accountability for shipping. Or I could just say this: Buyer beware, do not send pay pal payments as a gift or for family to avoid charges. You cannot file a claim for that.
  14. Zentech, do you have pictures of the manifold? I haven't seen a NAPS-Z manifold but given that it was geared towards a more emissions friendly engine, it may not be what I'm looking for. I'm also not looking for carburetors... Safetymike, whyyyyy is yours for a Z???? So close.
  15. I'm looking for an intake manifold from a 280Z, or if you have a de-webbed manifold, that will work too. I'm also looking for a 280ZX rack and pinion assembly with linkage to the steering column.
  16. I would have to ask my guy how much pressure was applied. He did in fact pressurize the system and pump smoke into it but at what amount of pressure exactly, I can't remember. I should also note that it revs freely up to 6500 with no issue while stationary, but of course there is no load on the engine at that point. Also, this is a turbo setup so "load" implies boost.
  17. Alright so here's the background: After breaking in the engine in I proceed to make some third and fourth gear pulls to tune the top end of the VE table. It kept cutting out around 5K as if there was a fuel cut or something. Checked my variables and nothing was out of whack. That day, I ended up blowing the head gasket at cylinder one. I replace the head gasket with a Felpro, I still experience the 5k cut but the new gasket has held strong through a lot of trouble shooting. A couple weeks later after trying many things e.g. plug gap decrease (with iridium plugs too), clean the fuel pickup, boost leak test, pull timing and dump fuel, I've got nothing. So I go to a shop I know... As soon as I pull up he notices the intermittent misfire. He spray the intake manifold at each cylinder with carb clean and notices he can choke the engine when he sprays at cylinder one. We do a smoke test and no smoke pours out! He pulls a vacuum line on the intake manifold to verify there is smoke; it's billowing out. We do the same thing, start the car, choke it with carb cleaner, and then he gives it a steady stream to smooth out the idle to verify what is happening is no fluke. We tried spraying in many areas around cylinder one to include the fuel injector. It only affects the engine where the gasket is. The manifold gasket did seem to look funny so I replaced it with a Felpro; a much better gasket than the JIS bullcrap gasket I had. Still the same issue. So.... How can there be a leak at cylinder one but a smoke test will not verify it?
  18. Very nice! I actually quite like the Mack truck sound our cars seem to produce, especially with that turbo wine.
  19. You're right, but that in conjunction with a three row aluminum radiator means its very hard to get past and stay past 160 degrees.
  20. Wow! You want to come paint my car? Man, this is great. You made this for under $1000. Impressive! I thought I did good by not going over $5000...
  21. I'm still tuning but I couldn't help but to get on it just a little bit. I only brought it up to 4 psi and even that put a smile on my face.
  22. The issue turned out to be a far too low value on deceleration enrichment. Interesting. Anyway, I change the value from 5% to 100% and bam! No more cut outs or lean outs. Got a little bit of tuning done today. Watson is running great! I had to give it just a little gas to hear the turbo spool up. As it turns out, blow off sounds are quite rewarding. On the way home the fuel pump decided to it was time to start dying. I just happen to have a Walbro 255lph fuel pump laying around. That will go on tomorrow.
  23. Thank you very much, Matt Cramer! That did the trick! I also swapped my 160 degree thermostat for a 180 so the car could actually get up to temperature and now I can successfully utilize the the VE table and O2 correction along with Auto Tune. Everything is moving right along. Thanks.
  24. It looks like it may in fact be a tuning issue. The PW just drops off causing the fuel cut. But I wonder what would cause the PW to drop to zero... Log and tune attached if anybody would like to take a look at it. Watson Log and Tune.zip
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