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Old 10-11-2016, 01:44 PM   #2876
mcbassin
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Re: 1969 Short Wide

Quote:
Originally Posted by EightiesOnly View Post
If you have connected the Tach and its not working at all (same thing happened to me) you should try connecting a pull-up resistor from the tach signal to +12V key on. I don't remember what tach output that our computer was programmed to, but I believe it can be set by the programmer (lt1swap.com in our case).

See the link below for a diagram:

http://lt1swap.com/lsx_tach.htm
Thanks LC for the explanation. I vaguely remember that now.

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Thanks for posting all the pictures Mike!
You're welcome. My pleasure Rod.
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Old 10-11-2016, 01:45 PM   #2877
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Re: 1969 Short Wide

Ha, I didn't know you knew Eric! He's a great guy, I just saw him this weekend. Yeller would not be nearly as nice as it is without him. Glad you had fun, I gotta get down there one day.
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Old 10-11-2016, 03:34 PM   #2878
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Re: 1969 Short Wide

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Ha, I didn't know you knew Eric! He's a great guy, I just saw him this weekend. Yeller would not be nearly as nice as it is without him. Glad you had fun, I gotta get down there one day.
Yeah, he's good people. I wish we would have had more time to visit. He has forgotten more about LS motors and swap than most will ever know.
We need to meet up when you get down this way or me up that way.
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Old 10-11-2016, 04:59 PM   #2879
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Re: 1969 Short Wide

Bring it on, we got a bbq place just down the road with a 65 Impala for a bar and a Comp dragster hanging from the ceiling. First round's on me!
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Old 10-12-2016, 12:00 AM   #2880
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Re: 1969 Short Wide

Quote:
Originally Posted by EightiesOnly View Post
If you have connected the Tach and its not working at all (same thing happened to me) you should try connecting a pull-up resistor from the tach signal to +12V key on. I don't remember what tach output that our computer was programmed to, but I believe it can be set by the programmer (lt1swap.com in our case).

See the link below for a diagram:

http://lt1swap.com/lsx_tach.htm
Thanks for the link. I put in the resister but it seems to be reading a little low. How accurate is your gauge? mine reads fine at 100-1,000 RPM but seems to be falling behind after that. I am assuming this is the difference between the pcm being programmed at 4cyl mode vs. 8cyl mode?
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1970 SWB Step-Side
http://67-72chevytrucks.com/vboard/s...d.php?t=552980 1970 LWB
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1970 SWB One Owner Step Side 6.0 LY6/6L90
http://67-72chevytrucks.com/vboard/s...d.php?t=617630 Junkyard's 1971 short wide
http://67-72chevytrucks.com/vboard/s...86#post7531186
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Old 10-12-2016, 08:03 AM   #2881
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Re: 1969 Short Wide

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Bring it on, we got a bbq place just down the road with a 65 Impala for a bar and a Comp dragster hanging from the ceiling. First round's on me!
I'm always down for some BBQ.
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Thanks for the link. I put in the resister but it seems to be reading a little low. How accurate is your gauge? mine reads fine at 100-1,000 RPM but seems to be falling behind after that. I am assuming this is the difference between the pcm being programmed at 4cyl mode vs. 8cyl mode?
Mine seems pretty accurate. We have a Bluetooth scan tool code reader that gives live engine data. The tach on mine stays pretty close to it.
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Old 10-12-2016, 06:54 PM   #2882
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Re: 1969 Short Wide

Quote:
Originally Posted by boynton View Post
Thanks for the link. I put in the resister but it seems to be reading a little low. How accurate is your gauge? mine reads fine at 100-1,000 RPM but seems to be falling behind after that. I am assuming this is the difference between the pcm being programmed at 4cyl mode vs. 8cyl mode?
I just browsed through lt1swap.com and he does in fact set the tach signal to 8 cylinder mode when he does a reflash. This means that mcbassin's tach signal IS in fact 8 cylinder mode.
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Old 10-13-2016, 01:44 PM   #2883
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Re: 1969 Short Wide

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Originally Posted by EightiesOnly View Post
I just browsed through lt1swap.com and he does in fact set the tach signal to 8 cylinder mode when he does a reflash. This means that mcbassin's tach signal IS in fact 8 cylinder mode.
awesome. this is my issue then. I thought it would be but wasn't sure. thank you so much for the info!!!
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http://67-72chevytrucks.com/vboard/s...d.php?t=552980 1970 LWB
http://67-72chevytrucks.com/vboard/s...d.php?t=584499
1970 SWB One Owner Step Side 6.0 LY6/6L90
http://67-72chevytrucks.com/vboard/s...d.php?t=617630 Junkyard's 1971 short wide
http://67-72chevytrucks.com/vboard/s...86#post7531186
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Old 10-13-2016, 02:04 PM   #2884
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Re: 1969 Short Wide

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awesome. this is my issue then. I thought it would be but wasn't sure. thank you so much for the info!!!
No problem!
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Old 11-14-2016, 08:03 PM   #2885
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Re: 1969 Short Wide

Just read thru your build thread...Awesome truck!!
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Old 11-15-2016, 09:16 AM   #2886
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Re: 1969 Short Wide

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Just read thru your build thread...Awesome truck!!
Thanks for the positive feedback and for checking out my build.
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Old 02-28-2017, 09:41 AM   #2887
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Re: 1969 Short Wide

Just a quick update, I have been driving my old truck when weather allows. My wife and I just made the 810 mile round trip to Conroe, Texas for the Lonestar Throwdown. It was a great show. Got to meet up with a bunch of new and old friends.
The truck performed great. Only one little hiccup when the fuel pump gulped a little air going up a long steep hill. A short delay and we were back on the road.

I plan to change a few things on the fuel setup that should prevent that from happening again.

Here's a few pictures from the trip.











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Old 02-28-2017, 09:48 AM   #2888
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Re: 1969 Short Wide

Awesome pics Mike! Is your tank baffled or were you just a little low on fuel?
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Old 02-28-2017, 10:07 AM   #2889
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Re: 1969 Short Wide

Mike,

Your truck is one of my all time favorites!
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Old 02-28-2017, 10:42 AM   #2890
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Re: 1969 Short Wide

Such a very nice truck!
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Old 02-28-2017, 11:06 AM   #2891
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Re: 1969 Short Wide

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Mike,

Your truck is one of my all time favorites!
x2. The driver is ok too
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Old 02-28-2017, 11:13 AM   #2892
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Re: 1969 Short Wide

Awesome pics Mike, your truck always looks amazing!
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Old 02-28-2017, 01:31 PM   #2893
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Re: 1969 Short Wide

Been watching the coverage on ig. Truck still looks great!
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Old 02-28-2017, 01:46 PM   #2894
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Re: 1969 Short Wide

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Originally Posted by Hart_Rod View Post
Awesome pics Mike! Is your tank baffled or were you just a little low on fuel?
Thanks Rob, the tank is a standard blazer tank, so no baffles. It's the first time I've ever had this happen. I will be changing the tank and pump setup before I drive that series of hills in southern OK.
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Mike,

Your truck is one of my all time favorites!
Thanks MMcMasters

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Such a very nice truck!
Thanks Keith, I thought we might meet up down there. I hope you are in good health. Eventually, I will see your Blazer in person. Even if it's just at Keith's shop.
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x2. The driver is ok too
Thanks Scoti, good to see you again.
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Awesome pics Mike, your truck always looks amazing!
Thanks Keith. It's always amazing when you cruise these trucks how folks come right up and visit about them. It usually starts with "my dad had one of these" or "my grandpa had one of these.....
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Been watching the coverage on ig. Truck still looks great!
Thanks Chip. I followed along last year on IG....
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Old 02-28-2017, 04:37 PM   #2895
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Re: 1969 Short Wide

Nice pics Mike. Thanks for making all of us with incomplete trucks jealous
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Old 02-28-2017, 04:46 PM   #2896
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Re: 1969 Short Wide

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Nice pics Mike. Thanks for making all of us with incomplete trucks jealous
hahaha, glad someone else said it
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Old 02-28-2017, 04:59 PM   #2897
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Re: 1969 Short Wide

Very cool on making the trip and the truck still looks awesome! It's nice to hear you only had minor hiccup and were able to keep going.
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Old 02-28-2017, 05:09 PM   #2898
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Re: 1969 Short Wide

Quote:
Originally Posted by boostedc10 View Post
Nice pics Mike. Thanks for making all of us with incomplete trucks jealous
Thanks Brandon. I have no problem providing inspiration.
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hahaha, glad someone else said it
Anytime
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Very cool on making the trip and the truck still looks awesome! It's nice to hear you only had minor hiccup and were able to keep going.
Thanks Ryan. It's fun to drive but I'm not sure I want to make the long journey again....
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Old 02-28-2017, 06:50 PM   #2899
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Re: 1969 Short Wide

Well Mike, I looked for you a few times on Saturday, but you weren't ever around your truck (when I was). I rode with a friend and hung out all day. You're truck looks even better in person. Maybe we'll meet at another show this year, or next year at LST.
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Old 03-01-2017, 01:09 PM   #2900
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Re: 1969 Short Wide

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Well Mike, I looked for you a few times on Saturday, but you weren't ever around your truck (when I was). I rode with a friend and hung out all day. You're truck looks even better in person. Maybe we'll meet at another show this year, or next year at LST.
Thanks and Sorry Duane, I didn't spend much time around my truck. Hopefully we can meet up at c/10s in the park or goodguys in the fall.
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