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ask92

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Posts posted by ask92

    Loophole to get motor swapped 77 & 78 Datsun 280z thru California smog inspection

    in S30 Series - 240z, 260z, 280z

    Posted

    All my cars are registered in Amador county thus they only require smog on change of title, and if the previous owner is related to you then no smog is required at all. There are loopholes you need to just test them before you jump balls in. And no your car does not get impounded for illegal modifications, I attempted to smog a supra I had just bought that had some hidden mods on it and not only did they find the mods but they found that cats had been hollowed. All they did was give me the fail certificate and send me on my marry(sorrowful) way. 

    2JZ headgasket

    in Toyota L6 Forum

    Posted

    Is300 na-t, cressida 1jz, 280z 1jz, different 280z 1.5jz. All sold except the 1.5jz build. May i ask why you feel the need to chime in on jz threads when you're building a 7m? Anyone with experience knows better than that. The sad thing is that is not an insult to you, your work is well thought out, and well executed. Im about to attempt pie cuts tonight and i hope they look 1/10th as good as yours. But all of your effort is wasted on that engine. It WILL blow the headgasket, and you will fix it, and then it will rod knock. Theres never been a 7m that didnt. Even the factory race team in jgtc had these issues. Thats why the jz was developed.

    You obviously have me confused with someone else as I am not and will not be building a 7m. They are torquey engines that CAN be made reliable if done right, but by the time you spend all that money it would just be cheaper to go 2jzgte. Sound familiar? I have owned 3 supras, and a Sc300 so I know my way around the jz and 7m engines just a bit. I see that you are condemning anyone that does not have a NA-T z, yet you have never owned or worked on a GTE?

    2JZ headgasket

    in Toyota L6 Forum

    Posted

    Has anyone in this thread other than me built an na-t 2jz? Anyone other than me had a jz swapped z car? Alot of people posting here are building 1000hp blocks to run 350whp. To me that seems pointless. Non vvti ge's have forged internals factory btw, so aside from no oil squirters and higher compression, they're nearly as capable as gte's. it seems like a bunch of people with zero experience chiming in on a subject they arent at all familiar with. Im on my 4th jz build, and have been working with them exclusively for the past 5 years. Some of the things said in this forum are mindblowing. Where do you guys get your info?

     

    May I ask why you are on your 4th JZ build if the GE is so capable?

    2JZ headgasket

    in Toyota L6 Forum

    Posted

    Na2j nonvvti will take 500-600 all day bone stock with no complaint with zero issues. Its been done thousands of times. The key is in the tuning.

    Bone stock with ARP headstuds and a TT HG....

     

    Generally NA-T setups are done instead of GTEs for no other reason than price. There are exceptions to this of course such as when you get up into the 4 digits with forged internals people will use GE blocks instead of GTEs because the GTEs oil squirters become obsolete due to forged pistons not having oil galleys. Regardless, most NA-T builds are done on a tight budget so corners are cut which ultimately result in failure. OP I am not sure how long you want the engine to last, or how you plan to drive it, but if you plan to keep it a long time and beat the hell out of it I would spend the extra few months of saving and just get a GTE right off the bat and not worry about opening it up or tuning or any of that BS. That being said I rode in a 600whp NA-T setup all around Vegas last week while attending SEMA and it was a blast due to the tune. 

    2JZ headgasket

    in Toyota L6 Forum

    Posted

    If you are looking for anything over 450hp do yourself and favor and just go GTE. By the time you get a NA and build it to handle 500hp you will have spent almost enough to just get a GTE in the first place. While yes high compression will make for a quicker responding engine, the engine will not last like an OEM GTE will unless you dump some serious money into internals and tuning. I have seen countless NA-T builds and the only ones that last and make decent power cost more than if you were to just go GTE from the start.

    1jz in a Z, gas mileage.

    in Toyota L6 Forum

    Posted · Edited by ask92

    I have found with the OEM JZ engine if you stay out of boost you can get low 20s in fat supras, so I would imagine if you stay out of boost in a Z mid 20s should be attainable. However you don't swap in a 300+hp monster to drive like a grandma ;).

    2jzgte swap

    in Toyota L6 Forum

    Posted

    Ah I am not talking with the v160 6 speed, I am talking with either a r154 or w58 which will bring the price down at least 2 grand. I do not have a JZ powered Z currently, but owned a supra and am still very active in the supra community so I know my way around the JZ engine very well. I have copy and pasted your list and will make my changes/comments in bold. Obviously this is my personal opinion and being pretty connected in the supra community my prices may be a little lower than normal. If you'd like me to explain anything more I would be more than happy to.

     

    Motor VVTI 2jzgte with all electronics(motor only)-$1600 with all electronics

    Trans W58 from NA supra- $250

    Motor mounts/subframe-Custom built $200 for materials, this is very dependent on fab skill

    Trans mounts- Again this can be custom or be bought -$100

    Custom driveshaft-$300

    Aftermarket single turbo exhaust manifold-$200

    Aftermarket Turbo-$500

    Exhaust-$250

    Upgraded clutch/pressure plate $200

    Bigger intercooler $150

    Intercooler piping kit $120

    BOV $150

    Waste gate $150

    Bigger injectors-$400

    Higher volume and pressure fuel pump $150

    Fuel tank of some kind (fuel cell, or I think a 76 260z tank? with different fittings) $300

    Bigger fuel lines $150

    Rising rate fuel pressure regulator $125

    Fuel filter $25

    ECU of some sort $500

    Gauges (boost, oil pressure, water temperature, speedometer, tachometer) $400

    Electric fan w/shroud $100

     

    $6320

     

    Obviously there will be little stuff all over that will need to be bought so that is why I found that $7000 is the prime number. Also this is with a single turbo conversion, if you were to keep the stock twins you would not have to buy the turbo/manifold, injectors, FPR or the ECU so the cost would be cut down even more. I can write details on each part(what, where, why) if anyone wants that as well.

     

    -Andrew

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