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Lazeum

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About Lazeum


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  • Member ID: 14539


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  • Joined: 11/04/2007


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  • Age: 44


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  • Map Location
    Paris, France (prev. Troy, Mi)
  • Occupation
    Product Engineer

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  • About me and my cars
    I've got a 72 240z with L28 (F54), P79 port/polish head, 3x 40DCOE, 2.5" exhaust & 5 speed trans., R200 3.9, Mallory unilite

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  1. It is not, they are super tight (i.e. very hard to move by hand) with 0 play while I can clearly see input pinion moving. tie rod ends are also new on my car. Old rack has been tested without tie rods on bench.
  2. My Z has always got some king of loose steering (3-5 millimeters of free steering wheel rotational movement). I was able to reproduce the mechanical play with rack on bench to exclude any problem with other components from my car. I could turn pinion by few 1/10th of degrees while rack was not moving at all by using a gauge in any direction. So I've ordered an ultimate T3 rack hoping to get rid of this problem for good. Unfortunately, I end up with exact same problem as before 😞 Has any of you have experienced same problem with their rack? Should it be this way? (I guess not!) Have you been able to solve it?
  3. That's the thread we're talking about on hbz Here are the changes we've made to quiet things down. The rockers were not sitting straight on top of the lash pads. This solution could work obviously if you don't have stock valvetrain components. Before: During regrind with a dremel tool: After polishing operation, still done with dremel tool: Valve train is now quiet on my engine. Some small lash pad adjustments had to be made after the work. After 1000mi. every is now steady.
  4. Perfect! I'll keep in touch with him then.
  5. I feel for you. You've got all the cold we did not get in Europe this year. Not even one snow flake to be seen this year. I had to grind ice from my windshield maybe 3 times this year only in the morning. I've also been driving my Z anytime with no downtime due to salt on roads since there was no freezing temps. Best part is we're having lunch & diner outside just wearing shirts since temps are around 75°F with blue sky & sun. I've got new winter tires on my DD, they are badly worn out whereas they should last 3-4 winters. High temps killed them
  6. Hi Andreas, I'll check it out with David or Sean (not sure who's your contact afterall). Thanks for your effort! It seems to be great work.
  7. I'm in contact with the person in France, we're all part of the same club I'll keep an eye on your progress. Keep up the good work!
  8. Looks great! If you're going to sell some, you can put me on the list! I've never disassembled the tacho. Do you believe there's a way to change the odometer also to fit kph instead of mph? have you seen how it works? Not a big issue but it could be very cool to get a 100% kph conversion.
  9. I'm running distributorless system so I'm out of the picture here but I'm able to control engine load advance with TPS. At very low load state at steady speed (=max vacuum), my engine is happy with 48°. At 130kph (80mph), I really have to feather the gas pedal to keep the car steady whereas before it would need way more gas pedal travel. So to the very post, I can say: Yes, you can increase fuel economy by controlling vacuum advance (by 20 to 30%) When fuel mix is low (low load, low throttle angle), cylinders are not full, gas mix is much slower to burn than at WOT. 2 options exist to get good burn then: you ignite the mix exactly when needed - not possible without load advance control - or you increase the volume of fuel mix. With "poor" (= no load/vacuum control) timing management, you can only use the 2nd solution which is the less efficient. By controlling load advance, you also improve acceleration/transition. Engine is running in a way more efficient state, transition can be done with efficient mix ("easily" done with DCOE by playing with idle jets) but also efficient advance (going in my case from 48° to 34°). Car is much more responsive as it has ever been when I was running Unilite dizzy without any load control. here's a very good article about fuel economy, advance load control & DCOE
  10. I've got a Mallory pump 4070LP, it is quiet (you can barely hear it at idle) but I've never been able to get more than 2psi out of it for some reason no matter what I was doing to get higher pressure. Despite low pressure, flow was good.
  11. Are the throttle plate closed completely when you're at idle? Is the linkage ok and free to move within their entire range? Timing at idle seems very low to me. I'm running 20° with 9.5:1 CR, Rebello 276 cam and same 40DCOE-18. That would change total timing (so be careful with knock at high engine load) but you should try to increase advance at idle with engine running and see if rpm rise. Best timing at idle would be when rpm are the highest. You've got a big overlap cam, you definitely need higher timing. Have you checked for leaks? It could also lead to some problem.
  12. Welcome here! I used to live in Troy/Birmingham MI. It took me 4 years to find a good condidate locally. At the end, it was all worth it but you might want to look also elsewere for a proper car. Now, that I have one, it brings me a smile each time I'm driving it (except when it let me down from time to time on the side of the road... that was before)
  13. If the fitting is good, I could also be interested. Being part of French forum, where more and more Z are imported from the Z, I could foresee some interest.
  14. The 1750 would be also on my list. I'm trying to find a different solution than yours: get some space and get te Z AND the Alfa Dreaming is not forbidden, it gives me a goal for the future. Engine and chassis are awesome apparently and very fun to drive. Next on my list is an Alpine A110 1600s, that's when I would win the lottery! I had the chance to drive one for 25 minutes, it was incredible!
  15. Look for REDDAT on the forums (here, hybridz, zcar, etc.) and on the web and you'll see what people think about him. http://www.classiczcars.com/forums/open-s30-z-discussions/44910-ebay-user-reddat-houston.html http://www.classiczcars.com/forums/help-me/35475-does-anyone-have-reddats-phone.html http://www.classiczcars.com/forums/open-general-discussions/13557-beware-george-g-robbins-aka-reddat.html Heads up about ebay seller reddat & his "NOS" parts on ebay - General Discussion - Ratsun Forums
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