Engine & Drivetrain

5,574 topics in this forum

1. 

   E88 Chamber CC reduction after a shave? 1 2

   May 14, 2004 by Black Beaut

   • 19 replies
   • 4k views

   Hi All, Does anyone know roughly what the chamber cc will be on an E88 after a 0.030" shave? I need a figure to plug into the engine calculator. I've been guessing at 42cc so far. Cheers, Rob

   

   Last reply by Black Beaut, May 27, 2004
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3. 

   p90 head

   May 26, 2004 by ricksaia

   • 6 replies
   • 2k views

   Hey guys, I am debating to get rid of my p79 head and get a p90 head for my F54 block I am putting in my 1970 240Z. I can get the head from a dismantler for $150.00. Is it worth the money and will I notice a great improvement over the p79? I do not plan to race, but I want a fast every day car. Thanks, Rick.

   

   Last reply by Deus Ex, May 26, 2004
4. 

   Intake/Exhaust Manifold Torque Specs

   May 26, 2004 by dhoneycutt

   • 3 replies
   • 5.5k views

   I just got done putting in my MSA Header and ZTherapy SU's and went to torque down the nuts & Bolts. I searched everywhere in the FSM and couldn't find the specified torque requirements:stupid: I checked the Haynes manual I have and it says 8 ft/lbs. Is it me or is that not very tight? What do you guys/gals have as far as torque specs? David

   

   Last reply by dhoneycutt, May 26, 2004
5. 

   how do i know wich e88 head do i have

   May 26, 2004 by richyboycaldo

   • 6 replies
   • 1.4k views

   hi i just bought a 73 240z and the owner told me he changed the whole engine, but left the same square carbs that suks,, but i cant find a way to know if the head is fomr a 73 or a 72- bcause i know the 73 e88 is not as good. thx you guys

   

   Last reply by jmortensen, May 26, 2004
6. 

   88mm, 32.5mm comp. height flat top pistons?

   May 15, 2004 by Black Beaut

   • 1 reply
   • 1.4k views

   Hi all, Well plans are afoot to knock out a bit of a stroker engine. I've pretty much finalised the piston spec as above. The low compression height is to help keep the compression to around 10.5:1 and allow plenty of valve clearance without having to machine the piston tops. I've already got an E88 head that's been shaved by 0.030" so compression isn't a problem. Only problem is finding a piston to this spec. So far I've got a quote of £125+VAT each from a company for forged pistons. Yes that is nearly $260 :eek: The best bit is that they probably wouldn't be able to deliver for 6 months :sleepy: I'm waiting to hear back from another company but I thought I'd pop over …

   

   Last reply by Black Beaut, May 26, 2004
7. 

   How loud are twice pipes? 1 2

   May 24, 2004 by Datsun-Fever

   • 13 replies
   • 7.5k views

   Hey guys, i want to buy an exhaust system that has free flow but isnt too loud.....i hate rice muffler sounds....so will twice pipes sound anything like this? or should i be looking for somthing else? thanks.

   

   Last reply by Dreco, May 25, 2004
8. 

   When purging gas tank:

   May 24, 2004 by Datsun-Fever

   • 3 replies
   • 1.7k views

   Hey guys, when i am cleaning out my gas tank (with a hose) where am i supposed to let the water go? i cant let it just let it go onto the street.

   

   Last reply by Bambikiller240, May 25, 2004
9. 

   L26 head

   May 18, 2004 by jbuttenshaw

   • 5 replies
   • 4.5k views

   just out of interest which head flows better out of the l24 head or the l26 head?

   

   Last reply by Carl Beck, May 23, 2004
10. 

    Valves Nissan Motorsport

    May 18, 2004 by Gav240z

    • 2 replies
    • 1.4k views

    Been reading the "How to modify Your Nissan Datsun OHC Engine" By Frank Honsowetz. Reading about valves and their head shape. It says you can get stock valves that have been modified (Numerically Controlled) in the way they are machined. It gives a part number 99996-N1100. I am wondering if anyone knows if these still exist and if so is it worth trying to get a set and paying $$$ or just getting a reputable machinist to cut stock ones the same way? Good book BTW. Gav

    

    Last reply by gema, May 18, 2004
11. 

    What Does the Fan Clutch Do? 1 2 3 4

    May 16, 2004 by TomoHawk

    • 43 replies
    • 5.1k views

    A fairly simple question that isn't explained in the Haynes book, et al. I thought that it's supposed to disengage when the air coming through the radiator is 'cool?' Gives more HP while you are at speed, then engages when not rolling along? My fan turns all the time, even right after you start the cold engine. thx

    

    Last reply by TomoHawk, May 18, 2004
12. 

    And now comes the fun.....

    May 18, 2004 by RedStage

    • 3 replies
    • 1.5k views

    Ok, finally started to mess with the 280..... So far I have changed the oil, oil filter, fuel filter, noticed a nice improvement all around with the oil change. Defiantely over due. Real bad blow by. Smelt more gas than oil..... Not a good sign. Today I got in my rebuilt air flow meter. Swapped out the old one. Car fired right up. Let it idle for a bit so the computer could adjust. Took her out on the road, first gear responsiveness much improved since the old air flow was gagging at low RPMs....but here's the problem.... Car basically refuses to go faster than 60mph, or over 3000-3500 rpms. I also notice a "puff" of blueish smoke in between shifts. Power…

    

    Last reply by kmack, May 18, 2004
13. 

    valves needs to be adjusted

    May 17, 2004 by fightyourself

    • 2 replies
    • 1.2k views

    I hear this cliking sound comming from the motor which I'm sure is because my valves are loosen up, which needs to be adjusted (tighten up) does anyone knows how to do this? is this something I can do on my own of should you suggest I take it to a Z shop and do this? and how much would this cost? thanks

    

    Last reply by Bambikiller240, May 17, 2004