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Everything posted by Ben280

  1. Hey Guys! Selling my lightly used knuckles. These were on the car for 4 auto-x weekends, and just have the light witness marks to prove it. These have a light interference with my brake rotors, hence the chamfer on the outside corner. Includes all the hardware that Dave sends with these (grade 10.9 bolts). Asking $125 shipped anywhere in the USA.
  2. Ben280

    2JZ/RB26 in 240/260 = Nose-Heavy?

    When I drove @seattlejester 's car, it was a pretty apples to oranges comparison unfortunately, I'd need more data to make a real conclusion. A lot of people confuse understeer with bad weight distribution. You can have a 50/50 car that understeers like an absolute pig! With the build, try and keep the weight as close to the axles as you can, and low. That's gonna be the biggest help. As @OverkillZ mentioned, moving heavy objects off the nose will help with your weight, but at the end of the day, suspension will be the defining feature for handling characteristics. PS, look at all this tagging we can do now!
  3. Ben280

    HybridZ PNW Auto-x Day

    Bummer on both counts! Saturday was a great day, was high overcast but fully dry. Afternoon test and tune was fun, I ended up messing with shocks a whole bunch. Sunday was real wet, but I did figure out some stuff with the rain tires. More events next year, so look out for those!
  4. Hey Everybody, Trying to organize some kind of meet up/race day with the fine folks of the pacific northwest! There are a handful of events that will likely work, so I'm throwing out some dates to see if there is any interest. The obvious site is in Packwood, WA. Phenomenal site, huge courses, free on site camping and equidistant from PDX and Seattle. Oregon Region SCCA has a few more events up there this year that might work well. Possible dates for a race day: August 11/12 September 15/16 Let me know if there's interest, I'll be there either way!
  5. Ben280

    HybridZ PNW Auto-x Day

    Next opportunity to hang out with your Z buddies is just a week away! Slap that pre-reg link and save $5 off your entry fee! Pre reg link: https://scorekeeper.wwscc.org/register/or2018/events all sorts of good info: http://www.oregonscca.com/solo---autocross.html Let me know if you have any questions!!
  6. Ben280

    HybridZ PNW Auto-x Day

    For your home testing, we use the "B" scale on Slow response at 50'. Measurement should be taken when vehicle is perpendicular to the meter at wide open throttle.
  7. Ben280

    HybridZ PNW Auto-x Day

    Great pics! Don't remember your tire size, but TireRack is doing some sales and free shipping on orders over $50!
  8. Ben280

    ITB's bog on accel

    HybridZ to the rescue! Excited to throw this tune on and see what she does!
  9. Ben280

    ITB's bog on accel

    Alright HybridZ, don't let me down! I've been battling with my ITB's for a little bit now and am getting properly frustrated. They are great at wide open, but have a really serious bog on tip in. This is very evident in a 1-2 shift under full power, rather than having smooth power once in 2nd gear, it jerks for a half second, then ramps in power. For auto-x this is super frustrating since there is a LOT of throttle stabs, modulation etc that accentuate the issue. A little bit about the motor, its a L28 Rebello built auto-x motor, 63DE cam, 45mm OER ITB's, 440cc high impedance injectors and LS1 coil packs. I'm running an MS3/3x. Tune and log are attached, I'd love it if somebody was able to look in this and tell me if I'm missing something obvious, or if something just looks off. I've had the car on several dynos, and the power is pretty good once it chokes through the stumble/bog. I'm going to have the injectors flow tested tomorrow, hoping that there is some sort of mechanical issue at play here. Coils were replaced recently and in testing, I've got VERY strong spark. Let me know if there's anything else that I can post up or answer! Thanks! Datsun Tune 2018-08-11.zip
  10. Ben280

    HybridZ PNW Auto-x Day

    Awesome weekend, was stoked that SeattleJester was able to make it out! Couple mechanical issues for both of us on Sunday, but I'm excited to get back up there for September. Hoping a few other members will be able to make it up as well!
  11. Ben280

    HybridZ PNW Auto-x Day

    Sunday we just run an AM session, usually packing up and hitting the road around 1-2. I'm usually back in PDX before 6! Reminder/bump for the weekend. Saturday will be fun, we are doing a region BBQ, so bring something and come hang out! If you'd like to save some time, online pre-reg is available! https://scorekeeper.wwscc.org/register/or2018/events
  12. Ben280

    New widebody kit design

    Loving this! Epic work sir, definitely will be following closely on your IG page. Front suspension looks amazing, I've thought about a double a arm kit, but that is next level! Really like all your progress pics for the body work, it's always great being able to learn! Are you just laying down fiberglass over the chickenwire forms?
  13. Ben280

    HybridZ PNW Auto-x Day

    Sounds good to me!! I think the supertrapps will have a huge effect. Another easy trick if you have space is wrapping the entire exhaust with header wrap. That will take a couple DB's out if you're right on the edge. It's annoying to be sure, but it is honestly just to help us be good neighbors and keep sites. Particularly where it's been a sensitive topic, we don't want to push the issue. So your efforts are very appreciated, hope you make sound in Monroe and come join us in August/September!!
  14. Ben280

    HybridZ PNW Auto-x Day

    We don't do fun runs on Sunday, helps people get out of there a little sooner! The competition portion of the event is usually around 6 runs, and the fun runs at the end of the day is usually at least that many. Classing headaches should be avoided at all cost. The SCCA rule book is a real serious read, particularly when you get into the prepared rules where the GCR comes into play! We haven't had anybody build a car for tuner challenge, its more or less designed to be a catch all for new drivers who's cars may or may not be appropriately classed. Some really common modifications, particularly around boost, put cars into REALLY high prep classes, so we tried to make it easy. Jon, you'd probably like the E-Mod rule set, although it doesn't allow wings. SCCA has been real hesitant to allow open aero in classes for fear of people spending heaps and heaps of cash.
  15. Ben280

    HybridZ PNW Auto-x Day

    Hey Albatross! No special requirements for entry, apart from a basic safety/tech inspection. We check for batteries properly secured, brakes/clutch have good feel, no play in the wheel bearings, throttle has positive return, no loose items in the car, tires aren't corded or dry-rotted. Pretty straightforward! As for classes, I run in FP. XP, BSP and CS are usually where these cars fall, but OR-SCCA has a special class called "Tuner Challenge" for people who are just learning the ropes of the sport, and don't want/need to get bogged down with the hefty SCCA rule book. SCCA classing is another whole can of worms that we should probably discuss in another thread! Admission for a day event is $15 for a SCCA weekend membership (unless you happen to have an annual membership) and $35 for runs. Packwood on Saturday's we run a test and tune after our competition runs, which is $20. As you might suspect, the weekend membership is good for both Saturday and Sunday, so that is a one time cost for the weekend, and that $15 can be applied towards an annual membership should you get bit by the bug! Couple useful links: http://www.oregonscca.com/solo---autocross.html (Main site with schedule, results and other fun stuff!) http://www.oregonscca.com/uploads/8/5/9/0/85902804/supps.pdf (Supplemental rules, worth the read!)
  16. Ben280

    HybridZ PNW Auto-x Day

    Dryer ducting turndowns work pretty well for this. New SCCA rules say it can go straight up or straight down. 95dBa is tough to hit if you've got some mufflers in. A cat and a turbo should be ok, and a turndown will get the rest of it if needed! Y'all should be good, the meter gets pulled out if something is rowdy loud.
  17. Ben280

    HybridZ PNW Auto-x Day

    Added a both response. Yeah, sound can be a real bastard to get, but supertrapps make a world of difference!
  18. Ben280

    HybridZ PNW Auto-x Day

    Awesome to see some interest!! In my opinion, a car is never really finished. So unless its not drivable, don't let that stop you from coming out and turning a few laps! Threw a poll up on the first post (this new HZ forum software is nice!) so vote for your preference.
  19. Ben280

    L Series Rocker Arms

    Full set of 12 rocker arms out of a N47 head. In good shape, no scoring/marks on surface. Lash pads in the picture not included, since there are only 11 of them! Asking $110 shipped anywhere in the lower 48!
  20. Leon, you are correct and I would be remise to claim that the only reason for the Z's not being on par with newer cars is its strut suspension. All that is meant to imply is that at peak driver performance, a SLA front end WILL outperform a strut front end. Can mere mortals get to that point in driving? That remains to be seen. Going off topic, but the bigger issue for competition (for my case at least) is the lack of power. I'm at minimum class weight and with a 8.5/10 motor build, about 9lbs/whp, with the guys at the pointy end of the field closer to 6-6.5 lbs/whp. For auto-x the Z has a lot going for it; light weight, excellent weight distribution, narrow even with monster tires on it, and lots of space to modify and add parts. The class I race in allows for most of the foils in the suspension to be fixed, and the excellent aftermarket support these cars have found recently makes it easy to get the adjustable parts. I'm getting closer with the car, and still believe that the nut behind the wheel is the limiting factor. Once that ceases to be the case, I'll be sure to post pics of my front suspension conversion. I will say that doing a front end conversion like this is a fabulous way to add years of development to a car, if not well thought out, or completely ruin a good car if it's not thought out at all.
  21. Ben280

    E31 Head - SOLD

    Hi All, I've got an E31 head for sale, and am hoping to send it to a better home. Its been sitting as long as I've had it, but it is in very good shape. Little bit of gunk, but its original gunk! Measured the head and it's never been decked, measures out at 108mm. Has all the original springs and valves, but the cam, rockers and lash pads have been lost to time. Looks like there's the usual surface rust in the main water jackets, but if you hot tanked and refreshed this, you should have a mighty good original head on your hands! Feel free to ask questions or request more measurements/photos. Asking $300 SOLD. Willing to ship, but you pay. Located in PDX.
  22. The strut setup on these cars is ok, but there's a reason they aren't competitive anymore. No camber gain in roll and the nightmare front hubs (hello, scrub radius called...) are challenges that can't be solved with this arrangement. The Apex Engineering is in my opinion the kit to get. It lets you lower the car and raise the inner arm pickup point to correct your roll center. I've drilled out my stock sub-frame, and that mod combined with the outboard roll center adjuster blocks make for a wizard handling car. You MIGHT be able to graft in a Miata front subframe, but you'll undoubtedly run into some hilarious issues with this. I say go for it, particularly if you've already exhausted the adjustments in the stock configuration! And post photos if you do.
  23. First post to introduce myself! My names Ben and I've owned my Z since March 2012. Originally I was going to make it into a cool beach cruiser, but that dream quickly fell by the wayside, and a hardcore auto-x car began to emerge. Back in those early days I didn't have a great overall vision, but I managed to not make too many mistakes! I have had this build over on Ratsun for the past few years, but think you guys would probably appreciate it more at this point. I was going to try and edit these more, but the original text gives you a good sense of what's going on in my head at the time. But first, we have to go back! to the wet cold months of 2012, Enjoy!
  24. Ben280

    280z FP Build

    I'm more excited to see people come out and have a good time! As my project shows, these cars are always evolving, so you gotta take time and smell the race gas.
  25. I have the T3 45mm, steps down perfectly to the OER ITB setup. Excited to see how they stack up in your testing!