09-22-2015, 03:34 PM | #461 |
Tri-State Post Whore
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10-11-2015, 08:10 PM | #462 |
Tri-State Post Whore
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I did another autocross today, Philly Region's last event of the year. Here are my 4 runs. My fastest was my 3rd. I won my class! For a while I was leading PAX and raw times, haha. I managed an 18th of 140 in raw time, which is amazing for my stupid GTI against some of the fastest national competitors and karts. :D Car ran amazingly well too!
http://www.youtube.com/watch?v=2mWqoxySvf8 http://www.youtube.com/watch?v=twCEvH43ClI http://www.youtube.com/watch?v=6QvBWgH9zWs http://www.youtube.com/watch?v=lFnVZUBbl9U |
10-11-2015, 11:22 PM | #463 |
TST Ruined My Life!
Join Date: Jun 2006
Location: Philadelphia
Member #2029
My Ride: "Honey Badger" Turbo Miata iTrader: (8)
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Coming along nicely. Sad to see there's only a handful of member journals being updated. Even sadder is it's probably just the owners documenting stuff to be able to see later. That's all mine is anymore.
Good luck with the project!
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2004 MAZDASPEED MX-5 : 328whp / 308wtq / 2500lbs 2012 Toyota Prius 2 : Daily Driver |
04-25-2016, 10:22 AM | #466 |
Tri-State Post Whore
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Ordered a baffled oil pan, new oil pump and some other odds and ends... Also ordering new bearings. The rest of the stuff I need I already have, just gotta pull the crank and drop it off at a machine shop.
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05-03-2016, 04:32 PM | #468 |
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Love this build thread. All the trials and tribulations with the engine! Great work
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06-11-2016, 02:11 PM | #469 |
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If I ever meet the people responsible for engineering the transmission on this car I'd like to drop one on their f*cking face. What a total PITA to work on.
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06-11-2016, 04:15 PM | #470 |
Tri-State Post Whore
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They're probably dead...
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06-11-2016, 04:16 PM | #471 | ||
Tri-State Post Whore
Join Date: Apr 2011
Location: Maryland
Member #20326
My Ride: 06 STi/08 Legacy/10 Forester iTrader: (5)
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R.i.p.
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06-11-2016, 05:15 PM | #472 |
Tri-State Post Whore
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May they rot in hell then. Seriously, what the hell. The output flange is behind the flywheel so you have to rotate the end of the transmission upwards while rolling the whole thing forwards. Too bad the transmission mount is right where the final drive housing ends up so you can't actually do that.
For the record, this isn't even easy outside of the car, it's a completely idiotic design for serviceability... yet I'm looking at buying another f'ing Mk2 GTI lol |
06-13-2016, 02:20 PM | #473 |
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Crankshaft is dropped off at the machine shop. Should have this buttoned up in the next few weeks, though I'll be in Indy next week for some autocross/track day/karting stuff with some friends.
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09-02-2016, 09:32 PM | #474 |
Tri-State Post Whore
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Crankshaft is in and has good tolerances. 0.003" tolerance on the mains and 0.002" on the rods. Good stuff.
I fired it up tonight and it runs and has fantastic oil pressure. Nearly double the idle oil pressure of before and the pressure climbs very quickly to ~65psi at 3500 RPM and holds that until at least 6k RPM. I'll finish putting the car together tomorrow and go for a drive. |
11-27-2016, 03:54 PM | #475 |
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Played around with the GTI a bit recently. Replaced the alternator belt with a 10mm belt instead of 13mm and it sits down in the pulleys properly now. No more flipping inside out, woo. Went through a lot of work to find an appropriate belt length. Gates sells a belt advertised as 950mm in length but is more like 980... I ended up using a 38" 3/8" wide belt from Dayco. Ideally, a 37" or 37.5" belt would be what I'd run as the 38" uses most of the adjustment range. Whatever, it works for now.
I spent about an hour futzing with updating Tuner Studio & Mega Log Viewer and playing with the tune a bit. I've got much better AFRs now and the car pulls a lot better. Not sure why they were overly rich, I ended up essentially putting the tune most of the way back to where it was at low RPM where it was so rich. I also greatly smoothed out the AFR at WOT so it's +/- a few tenths from 12.6:1 AFR. I think going leaner will be better for power, but without a knock sensor yet I don't want to risk it. Next comes going through the full table again and really dialing it in. There are a few spots leaner than I'd like and a few spots richer than I'd like. EGO correction takes care of it easily with the wideband, only ~5% correction, but it annoys me that it's not as good as I can make it. The tune was only intended to be good enough to drive and get on track, so it's smooth and made decent-ish power, but it's definitely not dialed in. I'm going to aim for AFRs of 15.1:1 during cruise as it currently gets pretty mediocre fuel economy around town (can't complain too much about 27-28mpg highway, but I was getting 35+ on the old setup at 15.1:1 AFR on highway, so...) and I'll aim for 14.7:1 AFR during "normal" acceleration like I am currently. Not sure I'll be able to achieve both of those targets as the wild cams and non-ITB setup kinda makes things a PITA to dial in, compared to nearly stock as I was before. Maybe I'll get the motivation to dial the VE table in completely and then play with the wall wetting algorithms... but I plan to sell the car and move to an RX-8 for a track toy. Who knows if that will happen anytime soon though, the new daily driver is eating up more money than I expected (tracked it and obliterated the brakes and now buying a clear bra and all sorts of other fun stuff...) I've been ripping around in the little thing and it's definitely quicker with the tweaked tune, and more linear power band, the "hit" as it comes on cam at 6k+ is much less aggressive because it's making more power below that. I'm pretty satisfied that the WOT tuning is pretty much as close as I can get it with only being able to do a few street pulls. Second gear tops out around 70mph, third is north of 100mph so I'm trying to dial it in using 2nd gear up a local hill to simulate the higher load of third gear. |
11-28-2016, 02:12 PM | #476 |
Tri-State Post Whore
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All that work and you're going to sell it?
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11-28-2016, 11:40 PM | #477 |
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I would like to free up some cash. I'd like to make a run at Pro Solo championship and then Solo Nationals in Lincoln, NE. Really uses a lot of budget to have good tires and make these road trips.
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03-02-2018, 12:40 PM | #478 |
Tri-State Post Whore
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I pick up a set of brand new Hella lights for a ridiculously low price Much clearer than the Autopal lights I had before. Still been working on the tune, it's now pretty pleasant to drive around and faster than ever and VERY smooth when being driven hard. Around town it's not perfect but that's part of the trade offs with HUGE cams and a plenum intake. Low loads at low RPMs are really sensitive and you have to feather the clutch more than stock, but not a huge deal. It drives pretty well considering how heavily modified it is while still looking pretty much stock even in the engine bay. Anyone want to buy it? Cosmetically looks kinda "meh" and I found some rust in the rear valence (hidden under the big rear bumper) |
03-02-2018, 04:24 PM | #479 | |
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Quote:
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03-02-2018, 05:18 PM | #480 |
Tri-State Post Whore
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lol, unsure if serious
semi-related, I redid the starting system this year. It refused to even crank over when below 20 degrees. Cranks over down below 0 degrees now New TDI starter motor ($$$!!!) and new big f'ing Bosch battery and new wiring to stop the ignition switch from taking the load of directly triggering the starter, it just drives a relay now. |
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