Everything posted by byunique
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Y2K Las Vegas - Z's at Large on the Track
Thanks. Yes, the conventions are always a lot of fun. There is a lot of excitement in the air when everyone gets to drive their own Z.!
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short stroke engine
Regarding the cam, I used to have a 304 duration, .525 lift cam. Because the motor was not high compression, that was a huge mistake (installed by my mechanic). At the time it was just a basic 240 block with E88 head with triple webers. Also, the power range is really weak below 4500 rpm. Once you hit 4500, it takes off wildly, but figure you have to build the engine to pull past 7000 rpm if you want a decent powerband. Su carbs will also not flow well at that rate, so triple carbs will be inevitable. Yes, it is a big cam, and with a light flywheel, it is going to idle very rough.
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rallysetup1
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3 guys on a Sunday drive
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drag racing a se-r
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Y2K Las Vegas - Z's at Large on the Track
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fresh motor
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rallysetup3
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rallysetup2
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rallysetup1
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Driving School Motorsport Show
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Time for a rollbar
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corkscrew was a dream!
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fresh motor
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Sound
Here is my speaker mounted in the door with the big spacer, the tweeters are surface mount ones mounted above, sorry forgot to take pic of that! Here is the 6x9's sunk into the storage bins and the amp behind the passenger seat.
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Test
will this picture that Mike gave me post?
- Test
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distributor vs. electronic ignition
I have had a Malllory Unilite for many years now, and I have to admit I have had to replace the light mechanism several times. I don't know how the pertronix unit compares, but the unilite doesn't last forever. Beware of anything electronic, because if it goes out..you get stranded.
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new top less pictures
First top down Z done with flares that I have seen. I like it!
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My first time.
$1300 for a valve job?...Well, if the head is that damaged, you may be better off going down to the junkyard and finding a head a decent condition or by a used head from somebody for $100. Sounds like the head you have is not worth rebuilding.
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Sound
I myself knew putting large speakers in the front would be a challenge since the cutouts in the door panels will not accomodate large speakers and I didn't want to cut a lot of metal out of my doors. I eventually ended up putting 6.5 woofers in the doors along with separate surface mounted tweeters. The trick to putting a large speaker like this in is to use a 3/4 inch spacer under the speaker, minimizing the intrusion of the magnet into the door. This way you can go way beyond the 5" speaker limit. For the back, my 73 has those storage bins. I ended up cutting holes in the storage tops and sinking 2 x 6.9 inch speakers in them along with the grills to protect them. I can still place items in the storage bins, but sometimes it is a bit tricky because the magnets have an affinity for them when taking things out. Along with that I have a 4 channel, 35 watt/channel amp that powers the Pioneer CD head unit. All in all, I am very pleased with the sound coming from this Z. The speakers in the front doors present the correct soundstage for the car and the 6x9 speakers provide plenty of bass. 6.5 inch door speakers make a big difference over any 5" speaker, just a whole lot more bass. Most importantly, the 4 channel amp makes it all possible w/o it there would be too much road noise. I mounted the amp behind the passenger seat for the lack of a better spot. It is bit too big for underneath the seat which would be my first choice. I am very happy with my installation because it is very unobtrusive and I have plenty of good sound quality.
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Introduce yourself to the class?
I have noticed anyone who drives a 240 is generally pretty cool. There is something different about 240 owners...generally about the way they take pride...and the way they think. Lots of 280 drivers let their cars run ragged and just drive to and fro for transportation. I got hooked on the Z when I was in college. I needed something to wrench on as a hobby. The Z has taught me lots about logical thinking, troubleshooting, project management and mechanics in general. 12 years later, I still enjoy the heck out of my car and often use my knowledge gained from working on my car to what I do today in computers as a Unix System Administrator which often tests my logic and tempermant.
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"red line" oil?
My buddy had told me from dyno testing, the use of red-line oil over convetional oil was good for another 5 horsepower at high rpm. Sorry, can't quote the article.
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Anybody autocrossing their Z?
I have AutoX my Z in the past for fun mainly, but there's lots of guys that are very fast in their Z's racing competitively. The Z's really do well in AutoX will coilovers, swaybars, race tires and a nicely tuned motor with SU carbs. Considering they are up paired up against Vettes, will give you a pretty good idea of how fast that can be. Yes, the Z is a very good platform to take autocrossing or on the track!!...very few cars can do that!!!