Dat73z
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Posts posted by Dat73z
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This morning my t3 top hats came in so I started to install them. These will enable me to run 245 or wider tires with a bit more camber and caster adjustment from the top. With the added turbo power and trq, I'm sure they will tighten things up a bit as well. It seems I may be missing a couple of parts so I'll call t3 next week to confirm.
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Waiting on parts again, so this AM I started test fitting the new tire size. I'm hoping running 245s or wider rcomps will help with traction.
Likely I'll need to run shorter springs in the rear to move the perch up, but the first step is to get all the measurements specific to my setup for the wheel builder.
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Over lunch I drew on the crank damper using the old bolt. The fit of this damper is definitely tighter than the last.
I gave the inside end of the damper a light skim of hondabond and ensured the key was aligned in the keyway as the damper bottomed out.
I'm going to take some final measurements and see if I can get the new bolt torqued on there over this next few days and retime the ignition. After that it's all minor reassembly from there.
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@Zetsaz full spool around 3k is also where my engine makes peak torque. For a "livable" street car you start running into traction issues as well. Punching it in 2nd on onramps I was lighting up 225 rcomps at 60mph lol
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Livable is subjective, with a modern properly sized single on the L paired with modern compression and tuning you're already spooling off idle with good drivability. Nowadays I think it comes down more to the novelty aspect, as the packaging gets pretty crazy in the s30 chassis.
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I had ordered an OE KA crank bolt a while back and they were backordered all over the US. Somehow mine was shipped directly from JP, so I figured I'd wait for it to come in.
At this point I just need a solid few hrs window to reassemble and get back on the road, it's been hard to find time. Hopefully over this next week.
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Measuring a bit more I think I may be able to get away with doing a tight turn or series of pie cuts off the rear of the muffler.
Initially I was thinking to shorten the muffler an inch or two, repack and reweld it.
Not sure yet, but I'd like to find the option which gives me the most headroom for the least amount of refabrication work.
Inboard I'll likely need to run shorter springs on my coilovers to clear the additional backspace to go up to 275s, will need to get the tires on there to measure later
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Another busy weekend but had a couple mins this AM so picked up 245 45 16 rcomps.
I realize that every time I touch this car it turns into some epic fabrication project.
So this time I am going to fabricate the exhaust such that I can fit 275 slicks or wider in the back if I want, but the plan is to run 245 square rcomps for now and go from there.
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To help with traction issues I'm having a custom set of wheels barreled with the option to stay 15 or upsize the barrels to 16.
Initially I wanted to run 245 45 16 R comps which I know will fit the chassis, but I fabricated the exhaust around 225 50 15 R comps.
It seems with 245s I'd have less than 1/2" clearance to the exhaust which seems close. I'm thinking of picking up some 245 tires tomorrow to start measuring. I really want to run 245s or wider on the stock body but I'm not sure if I want to cut and reweld that section of the exhaust to do it.
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Sounds like you've got this 👍. I've heard mixed feedback from multiple builders on knife edging as well. You definitely feel a difference in response with it, but I can understand the longevity concerns.
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@AydinZ71 I went through something similar, the dims my crank was done to from one builder ended up being NLA so the entire crank had to be welded and reground which cost maybe 1k overall so fairly reasonable. The knife edging and a bunch of other work was already done, and I got the crank in a deal so it made sense to keep it. Depending on how far you want to go with it, choosing your bearing types are still on the table if you're willing to do that.
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2 hours ago, 57GMC said:
Thinking blue Loctite on all the bolts known for coming loose..? JMTC
Nice on your build Joe.. enjoy...
Ime the loctite didn't help at 120ftlbs, but I was also shifting 7k+ at 10-15psi of boost on a larger stroker. I'd go with Dave's suggestion of 150ftlbs
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Tonight I did a mid project clean up around the car. It's hard to stay organized with multiple projects going on.
I think I've have this shell for almost a decade now. The original plan with the first rebuild was to spray it in quick and have a clean driver. When I got the car it looked like a chalkboard but I gave it a quick buff maybe 7 years ago and kept it in survivor patina since. Every time I was going to work the body and paint it, I ended up stripping it back down to a shell and rebuilding it or something else came up in life where I just needed to daily it.
I've been thinking over the weekend, to maybe strip it back down to a shell again and spray it all in glass out. But that would be a 3-6 month project at a minimum.
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Had a few mins today and started the reassembly process. I figured I'd take lots of pics this time, in the event I have some other failure in the future the forensics will be easier.
I started by installing the key for the timing worm gear which ended up turning into a fishing expedition after I dropped the key into the pan. I got it out with my borescope, some safety wire, and a magnet. I then hit the bottom of the key with some loctite super glue to hold it in place, and slotted in the timing worm gear.
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The crank damper cured out overnight, I brought it indoors as it's been pouring rain.
Some imperfections in the paintwork as it was windy and cold, in the low 60s when I painted it but overall I can't complain as it'll be protected from rust.
This AM I'm going to double check the thread engagement of the damper bolt and finish reassembly prep.
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It is supposed to rain here for a few days and temps are going to start dropping into the 50s during the day. Since I don't like to spray anything with a catalyst indoors unless I absolutely need to I sprayed in the damper in clear over lunch today. It should be cured out and ready for assembly within a day or so but I'll give it a few days as the weather is cooling quickly.
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Took a quick look this AM of how I want to mount the AC condenser. I figured since I have the rad out, it wouldn't be a bad time to fabricate some more bracketry.
The tightest areas are by the fittings on the DS, but I had mocked it all up prior in the build so I know it will fit along with the lines. I need to take a look at my scrap AL pile and see what I can make work. I have some random pieces I think I can tig into something that will look decent and work well.
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Been really busy this past week but I now have all the seals I need to put everything back together, along with some extra parts for some non-turbo related aspects of the car I've been putting off.
My engine builder called me again today to check in and after thinking about what I was seeing and tuning around like loss of power on some pulls, spitting fire out the exhaust on quick on/off boost transitions, and losing the alternator bolt were all likely related to the crank damper walking off and losing timing as the distributor worm gear was moving around.
Either way I'm thankful for all of the support I've been receiving on this. A lot of other projects in play at this point, but for the turbo build the plan is to shoot the new damper in clear this weekend and start reassembling.
Since I need to get the Z out of the garage and other builds in, I'm starting back on 1 thing per day until the car is rebuilt starting with sweeping up the garage tonight.
Triple Blowthrough Turbo
in Turbo / Supercharger
Posted
Trying to keep at it for the sake of more traction. Tonight after dinner I had about 15 mins so I fully disassembled the front sus and tom AM before work I plan to degrease and regrease everything to prepare for reassembly over lunch or after work. The nice thing is my wife is up every morning at 4 or 5 AM and I don't start work until 6 or 7 so I have an hour or so every AM to do something.