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HybridZ

74 260z with heads/cam lq9/t56


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Ive been a member on here for quite some time gathering information about my build. i recently bought a fully dressed lq9 with all the accessories and wiring harness as well as the entire fuse block and ecm. Im planning on dropping this into my 260z and getting my slide on. Im trying to finish my build in this next month and a half and am making this theres to see if there is anything i am forgetting. so please help me out! lol

heres some pictures of the car.

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The body and suspension parts-

-ground control coilovers

-sway bars front and rear

-r200 diff conversion from 280zx

-Wilwood disc brakes on all 4 corners

-4 point roll bar with 5 point harness and Corbeau Seats.

And heres all the information about the motor.

Short block is stock, pistons, rods, crank

Just this month I installed a freshened up set of cathedral port 799 heads off a '08 truck.

New FelPro MLS head gaskets,

ARP head bolts

Comp Cam .617/.605 225/230 Dur.

Patriot gold .650 valve springs with titanium retainers, 7 degr. locks

Comp hardened 7.4 pushrods

32 lb. "E85" injectors from flex fuel 5.3

Stock truck intake, throttle body, rails

 

Parts i need to get.

-JTR install kit.

-T-56 trans and appropriate clutch. Because this is going to see mostly track use and heavy clutch kicks at speed which clutch do you think would suit my application best?

-Master cylinder- Wilwood 15/16 replacement seems to be a popular choice. I also have a k-sport hydraulic handbrake with a 5/8 wilwood cylinder and im not quite sure how to get it working on my setup with a wilwood brake biaster. Any info on that would be greatly appreciated.

-Fuel cell and fuel pump setup-I would love to see a could setups of what people are running why each is best. i need something with a decent bit of baffling because the rear of the car will always be sideways.

-Radiator- Whats everyones opinion on these? Fans as well? Anyone have some cheap options?

 

In the future i plan on getting a Arizona Z Car Lower control arms, Tension control rods, and shortened steering knuckles but i just want to get the car up and running with the new motor first things first.

What else am i forgetting!

Thanks to everyone in advance and yes i did search!!!

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Fuel cell: I am personally using a 20 gallon. ( 24L x 20w x 10 H) summit foam filled cell an a walboro 255 lph or whatever pump. Running 43psi through the stock injectors(. I have been told that I should e closer to 60psi, but it runs well and I have no wot lean issues, I am running an ezefi ecu though). The setup works well, but if I were to do it again I would go with internal baffles any day of the week, The foam does an okay job, but If I'm at 1/3 tank or less and I have to brake harder than a gentle stop, I can hear the pump strain from fuel starvation, no stalls because of it though, and itgets worse on sharp declines. I'm planning on changing out the foam and adding a horseshoe shaped aluminum baffle with a hinged trapdoor around the sump

when I do

 

 

Radiator: I bought an eBay 3 core champion aluminum radiator for mine and it does an adequate job, the car will run 195-205 all day, (when my f**king fans work) I wish I could get it down to about 185 but I'll take what I can get. FYI I bought a setup with dual ~10 inch electric fans. I would recommend building a shroud and running hood vents..

 

Mounts: do you have an early or late 260? Be sure to specify for John, as the trans mount is different, My best tip for that one If you have a 240 is bolt it up so the mount is as far forward on the trans as possible( both the mount and bracket have or holes drilled on extremes so you vary where it goes, however the mount is right in the necked down area of the tunnel, so it's much too wide of you put it on too far back, I had to give mine a few smacks with a 5lb sledge to clearance the trans tunnel for it... And don't forget to dent your trans tunnel for te reverse lockout like I did

 

 

For the master, I'm using a short tilton 3/4 and it works very well, then again I have a very modified pedal setup, and I have heard that te 15/16 or even the 1" stock replacements work very well

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Fuel cell: I am personally using a 20 gallon. ( 24L x 20w x 10 H) summit foam filled cell an a walboro 255 lph or whatever pump. Running 43psi through the stock injectors(. I have been told that I should e closer to 60psi, but it runs well and I have no wot lean issues, I am running an ezefi ecu though). The setup works well, but if I were to do it again I would go with internal baffles any day of the week, The foam does an okay job, but If I'm at 1/3 tank or less and I have to brake harder than a gentle stop, I can hear the pump strain from fuel starvation, no stalls because of it though, and itgets worse on sharp declines. I'm planning on changing out the foam and adding a horseshoe shaped aluminum baffle with a hinged trapdoor around the sump

when I do

 

 

Radiator: I bought an eBay 3 core champion aluminum radiator for mine and it does an adequate job, the car will run 195-205 all day, (when my f**king fans work) I wish I could get it down to about 185 but I'll take what I can get. FYI I bought a setup with dual ~10 inch electric fans. I would recommend building a shroud and running hood vents..

 

Mounts: do you have an early or late 260? Be sure to specify for John, as the trans mount is different, My best tip for that one If you have a 240 is bolt it up so the mount is as far forward on the trans as possible( both the mount and bracket have or holes drilled on extremes so you vary where it goes, however the mount is right in the necked down area of the tunnel, so it's much too wide of you put it on too far back, I had to give mine a few smacks with a 5lb sledge to clearance the trans tunnel for it... And don't forget to dent your trans tunnel for te reverse lockout like I did

 

 

For the master, I'm using a short tilton 3/4 and it works very well, then again I have a very modified pedal setup, and I have heard that te 15/16 or even the 1" stock replacements work very well

 

Great info!!!! I really appreciate it! About to send in my order form for the mount kits tomorrow and buy a fuel setup tonight. 10 gallon tank is only because when i drift i only have short runs. maybe 5 or 6 runs at the MOST. Which are on fairly short track. I will be at wide open throttle most of the time but still i should have plenty of fuel for my needs. I have the early one i believe. It looks just like the 240z.

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