Hcr32 - Nelsonmx's Lightweight Track/street Build

[nelsonmxmarc]

what did you do to get the car down the 1120kg to start with? As it looked like a factory car with all the deadaning, ac...etc still in it

It was a bit of a struggle. Having swapped the AC compressor for a usable/new unit, i compromised that weight in other areas.. The front soundeadening was already out (never realized the rear seats had it as well), passenger seat was out at time of weigh in (~20 lbs), all firewall sound deadening removed and the structural supports below the dash.. All hicas lines, mounts, rack, pump, solenoids removed. All steel bolts on the under body and brackets removed; replaced with lighter aluminum ones with fabbed aluminum brackets. GTR wheels are quite light (16 lbs each). Stock brake lines were a few grams heavier than the oem, their brackets removed as well. Rear wing removed, spare tire (simple things), excess wiring removed as well, as well as a list of other things.. I had a list of what had been removed when i did this last winter, however i cant for the life of me find it - i never thought it'd withhold such importance as you're surely not the first one interested in this as well! I'll get a scale shot of this winters build when i break 1100 kg, AS WELL, as keep it documented and somewhere safe. As more and more things come to me, i'll gladly share my previous weight savings!

[nelsonmxmarc]

Chapter 22 - Gearset disassembly and input shaft bearing reinstallation

I have YET to find a proper DIY on changing the input shaft bearing or swapping gearsets on the RB20 Transmission, so i'll likely write one when im done, but here are a few pics of the process;

Remove these 5 bolts to expose the input shaft bearing (Culprit of the whiny RB20 transmission noise)

Next, remove the rear housing. Simply undo all the bolts and attain leverage on the case by hammering on the intermediate plate, using a block of wood to avoid damaging the case.

Inside the front of the bellmouth, where the first step took place - there are circlips to remove. 1 is a small visible one on the shaft itself. Remove this then remove the spacer. Next, remove the large one holding the bearing in place (around the outside, hard to see). Once that's done, dislodge the intermediate plate from the bellhousing as you did to the rear portion a minute ago, and pull the 2 apart.

Now you have all your gears/synchros exposed.

If your transmission is noisy with your foot off the clutch, you likely have a worn input shaft bearing (one in the front). The reason i say this is because your throwout bearing is free, and when the car is at a stand still with the clutch engaged (foot off and in neutral), the only shaft spinning is your input shaft. Your intermediate shaft is free (holds the gears per se) and so is your output shaft. The only bearing spinning at this point is the large one you see in the first picture.

To change this, you'll need to strip the gearset down, heat the bearing race after freezing the input shaft by tossing the whole unit in the freezer for a few hours.

Chapter 23 - Some new parts!

Chapter 24 - Engine bay repaint - coilover installation - GTR intercooler installed

Decided to repaint the engine bay anyways. I'm very anal about small scrapes/discolouration's and etc so this had to get done..

Also mounted my GTR intercooler and cut the hole on the driver side to fit the piping/oil cooler lines.

And then i finally mounted my new suspension. Front is done.. Cleaned the wheel wells up too.. Turning out to be more of a showcar than a track car!

Wheel fitment!

Chapter 25 - Centre vent gauges are now complete!

Center vent delete. Angled down slightly as the dash is contoured, as well as angled towards the driver at the same degree as the center console!

Edited January 29, 2011 by nelsonmxmarc

[jahn-15]

Loving the build mate can appreciate the work that goes into something like this im definatly going to do some of these mods on my 32 already planning it in my head cant wait thanks for one the inspiration

[nelsonmxmarc]

Loving the build mate can appreciate the work that goes into something like this im definatly going to do some of these mods on my 32 already planning it in my head cant wait thanks for one the inspiration

Thanks a lot! Glad it helps

I've got a bunch more to update very shortly!!

[Sunkist]

I love that Vent - Gauge CF replacement!

Top Work mate!

[nelsonmxmarc]

Thanks for the feedback guys !

I like it as well, Aaron. Nice to get rid of the broken vent, and to justify outrageous replacement costs from nissan or A/M is just suicide. Might a well make it useable!

Chapter 26 – BMC stopper prototype

Toyed with the idea of making a brake master cylinder stopper as the typical Cusco units are rather overpriced (100$ ballpark -http://www.rhdjapan.com/cusco-bcs-ki…-group-a-10798) , and being that I couldn't fathom the absolute necessity to have one, I figured it'd be best to see what could be made!

Using some steel flat bar, I managed to come up with this.

Disregard the weld 'neatness', as i had the feed set WAY too high and was in a rush amidst arranging a few personal issues.

Now, after i designed it and put it together, i completely left the strut brace out the equation! Fortunately, it all fit without an issue;

I've ground the welds and painted it black. For a prototype, i think it turned out quite well!

It's adjustable, as well.

If anyone's interested, more can be had for a very fair price

Edited February 2, 2011 by nelsonmxmarc

[nelsonmxmarc]

didn't know you were on here! lol, nice work!

I'm everywhere

Thanks Josh

PS. check my website - under links i posted your site. I plan to compose a full write up about the skyline community under the 'events' section once it's in, rather vicariously through your blog - WHICH i would like to post a few build things on! Seeing as you've got RIPS / Adam and Sean going at it, i'd love to contribute Let me know what if anything, i can contribute!

[KEBAB_DRIFTER]

Great read , good luck with the build

any updates?

[Trex]

bump. because i really enjoyed reading it, and im sure someone else will too