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Datsun 280z Turbo Build - 5.3 / T7875 / Magnum T56 - Video on page 12!

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Old 05-08-2014, 07:29 AM
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Few more things to wash and I'll have the top end put together. Forgot about my IAT sensor, so I'll be either putting that in the charge pipe or the intake - TBD.

Old 05-12-2014, 07:47 AM
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I was able to get the new timing chain tensioner on, and finish assembly of the engine.



I finished the plumbing on the fuel tank and got the pumps grounded.



I also had to cut out the floor, and make a new section for seat clearance and weld it in.



I was acually surprised with myself how well it came out lol.

I'm also about 80% done with the sliders for the drivers seat. I would have finished them, but the gf came outside made me make room in the garage for the cars. .... Something about a "tornado" and "1 inch Hail".
Old 05-13-2014, 07:58 AM
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Finished the drivers seat mounts last night. I only have about 5" of movement with the sliders due to some mounting limitations, but it will be plenty to accommodate the different driving I do.

The shoulder bolsters are pretty large on this seat, but I find it very comfortable. The outer bolster is about 1/2" from the door panel when its shut.

Also, there is a surprising amount of room for door bars, traditional, or a horizontal.


FWIW, I mounted it with 15 Degrees of layback - just where I found it comfortable.



Old 05-13-2014, 07:25 PM
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Any plans on upgrading from 4 to 5 lug anytime soon
Old 05-14-2014, 06:09 AM
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Originally Posted by oscs
Any plans on upgrading from 4 to 5 lug anytime soon
Not specifically.... why?
Old 05-14-2014, 07:23 AM
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Started mounting the passengers seat. I have the plates welded to the floor with bolt holes, so the outside legs are in position. The inside mounts will be a little more tricky.





This is about where the shoulder bolster will end up. I'd like to have about 1/2" when its final mounted to keep from wearing it out. Don't mind the baller / badass skull lock pulls.



Here are the mounts. I used these brackets from speedway motors ($5 ea), with a reducer nylon bushing from 1/2" to 3/8" which is pretty close to the 8mm bolts. Also, true to form all the pretty welds will never be seen!



Vice grips are temporary. Disappointing, I know.
Old 05-14-2014, 09:16 AM
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Originally Posted by STEEPSS
Not specifically.... why?
Been getting a bunch of **** for it lately. Apparently it's "unsafe" to run a ton of HP on 4 lugs. I don't know that I'm convicted though.
Old 05-14-2014, 10:45 AM
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Originally Posted by oscs
Been getting a bunch of **** for it lately. Apparently it's "unsafe" to run a ton of HP on 4 lugs. I don't know that I'm convicted though.
Its on the back burner. I'm not overly concerned.
Old 05-14-2014, 11:14 AM
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Originally Posted by STEEPSS
Its on the back burner. I'm not overly concerned.
same here
Old 05-16-2014, 07:54 AM
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Finished mounting the seats last night. Still have to weld the 5th strap tabs to the subframe, but other than that its done!



Car is FILTHY!



Pass side brackets ... (for the z car crowd)



Old 05-20-2014, 06:49 AM
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So how is that 8 lug conversion coming along.............I am just messing with you, what is the ETA of this thing hitting the street?
Old 05-20-2014, 02:37 PM
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Originally Posted by AmishAssassin
So how is that 8 lug conversion coming along.............I am just messing with you, what is the ETA of this thing hitting the street?
Originally wanted to have it done by the end of the month.... still do. I've worked 115 hours in the last 8 days, so no real progress on the Z. Hoping to have the drivetrain in this weekend, as I should have 4 days off. .. Ho hum.
Old 05-25-2014, 10:48 PM
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Finished the new diff mount.



Reason for new front diff mount:



Both the 14mm bolts holding the diff to the rear mount were quite bent. I knew the old mount was letting the diff move, but I had no idea how much!!!

Also got the fuel tank back in. I really like how the sump turned out.



Old 05-27-2014, 07:20 AM
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Quick engine bay shot

Old 05-27-2014, 07:29 AM
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Did you reinforce the trans tunnel where the diff mounts to? My TTT mount ripped apart that sheet metal back when I was only 400rwhp
Old 05-27-2014, 07:41 AM
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Originally Posted by oscs
Did you reinforce the trans tunnel where the diff mounts to? My TTT mount ripped apart that sheet metal back when I was only 400rwhp
Nothing past just welding the 1/4" plate to the tunnel, and welding the two pieces of the tunnel metal together. I'll probably run supports to there off the cage when that all happens.
Old 05-27-2014, 07:56 AM
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Related but unrelated - How close are your coils on the passenger side to the manifold? I am having issues with my setup since they are so close to my downpipe. Once the engine gets up to temp, its causing the coils to over heat and malfunction. Just giving you a heads up on something to look out for / prevent.
Old 05-27-2014, 08:50 AM
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Originally Posted by Phish806
Related but unrelated - How close are your coils on the passenger side to the manifold? I am having issues with my setup since they are so close to my downpipe. Once the engine gets up to temp, its causing the coils to over heat and malfunction. Just giving you a heads up on something to look out for / prevent.
Came to post this- not even sure how he can fit a truck manifold in the "up" position with coils in stock position at all.

Pics? I may have missed them.
Old 05-27-2014, 09:50 AM
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Originally Posted by Phish806
Related but unrelated - How close are your coils on the passenger side to the manifold? I am having issues with my setup since they are so close to my downpipe. Once the engine gets up to temp, its causing the coils to over heat and malfunction. Just giving you a heads up on something to look out for / prevent.
Greaaaat


Originally Posted by coltboostin
Came to post this- not even sure how he can fit a truck manifold in the "up" position with coils in stock position at all.

Pics? I may have missed them.
https://ls1tech.com/forums/18181486-post153.html
Old 05-27-2014, 12:03 PM
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Originally Posted by STEEPSS
Nothing past just welding the 1/4" plate to the tunnel, and welding the two pieces of the tunnel metal together. I'll probably run supports to there off the cage when that all happens.
This was my next plan of action if the way I have it fails. I made the diff mount and lower control arm connection piece one. Sucks if I have to take the diff out but it doesn't look like it will move under a load.


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