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I was unaware you could calibrate a mechanical speedometer, other than changing the gears that spin the cable itself... Quite honestly, my speedo cable broke after about 2000 miles, I'm about ready to just say screw it and get a gps of some sort for speed monitoring reasons. Yeah, the odometer...

Eh, all I can say is keep an eye on your fluid levels at all times, no matter what engine you're running, although doubly so if 7m.

Who says the Porsche owner can drive the Porsche though? Plenty of us Supra guys can't drag race to save our lives, but others do just fine. Just remember that if he hasn't destroyed you by 3rd gear, you're in a good position to win. :)

I'll be hitting you up next spring sir. Considering the fine line of road course/daily driver use that my car is being built for, would you use the poly or the aluminum?

Well, the a/f thing isn't uncommon, mine bounces around 14.5-15.0 all day long cruising, so I wouldn't worry about that. Things to check though: -Timing. -TPS -ISCV If all those things check out ok, and are set correctly, that should give you a good baseline to work with. Also might look into...

This part really doesn't make much sense... your speedometer and odometer are driven by the same cable, which is turned by the same gear in the transmission. One should follow the other. If one is reading off, so then should the other. Maybe Jeff can make some sense of all this for ya, I'm...

When you nod in agreement, then shake your head at this sad truth...

Awesomeness is that sound that you hear when you start up your car and realize that for all the hard work you've put into your car, it's ALL been worth it, knowing you're likely going to be in the coolest thing you see on your way to work. :) Far as your noise issue goes, there are some noises...

Good info. :) This would also work well enough. Not pretty, but I imagine this would do in a pinch, especially if you're a ways from a parts store, or they're like places around here and open only when you're not working on your car...

Yes, yes, yes, and no. JZA70 R154 (speedo output geared for 4.10 diff), car has MA70 3.73 diff, and speed shown is about 11.5% lower than actual speeds. I was until recently on a tire 3.2% taller than stock, so that plays into that a little as well. Sounds to me like you have a trans from a...

I'll concede my mistake on buying wider tires than I should have for the rim I'm running, never ran the Mk4 TT fronts, I thought they were an 8.5". I'm NOT a big fan of how stretched tires look, so that's one thing you'll probably never see me running on my car. That said, the soft sidewall...

Poke around the forum a bit man, you'll find the answers you seek. We have an awesome search function if you know how to use it by the way. ;) That said, I'll give ya a free one. For all intents and purposes, your 86.5 IS an 87. Now go check out the search, or read some stickied threads.

Heh, you'll drive yourself nuts trying to track down every little noise these cars can make man. Common sounds heard upon startup of our cars include the 'waterfall' (do a search, you'll see dozens if not hundreds of threads), exhaust leaks, rods knocking (sadly), and a distinct little sound I...

That's some high praise right there... kinda how I feel about the GSD3 and NT05's. Eh, they're not hard to break loose in a turn (255/40/17 on 8" width), but they hold quite nicely for a more or less stock won-jay in a straight line. That's not why I bought them though, I bought them to deal...

Good to see the Blitz Type 01's don't look as weird as I thought. I love the Type 03's but they're not as easy to find, and I'll admit the Type 01's have caught my eye a time or two... Awesome thread by the way, I approve! :D

You know... I bet even a standard 27mm would have worked to be honest. All you need to do is get a good grip on the sender itself, there is no other way to loosen the thing (other than the wrench madness mentioned above...).

I just put a set of 255/40/17 DWS on Mk4 17x8's all around, I've only put maybe 300 miles on them so far (if even that many). I agree about the sidewall thing, they are REALLY soft sidewalls, kinda sucks for steering response, but they do have pretty respectable traction for an all season tire...

Did you mention a budget? If so I apologize for missing that info, but if you're looking for a tire that grips extremely well in dry or wet, I won't hesitate for a second to recommend the Goodyear GS-D3. Expensive, but they work DAMN WELL. You happen to have the DW or DWS? I have the DWS on...

Living in Wyoming has it's perks. If it has anything even remotely resembling a VIN, I'd be willing to bet I could register it. Biggest issue would be getting it here in the first place...

Sounds like your trans has a speedo gear for a lower geared rear end. My 89 has the trans from the JZA70 the engine came from, which had a 4.10 gear ratio. My speedo reads about 11.5% slow, I.E. 67mph speedo display = 75 mph actual speed. All our car's speedo is the same, but the gear that...