1970 GTO Version 2.0
Thread Starter
Joined: Mar 2003
Posts: 10,617
Likes: 1,883
From: Little Austin
Thread Starter
Joined: Mar 2003
Posts: 10,617
Likes: 1,883
From: Little Austin
This morning I took the GMAT test and my brain was sizzled.
I got a replacement alternator in the mail today. I have to admit that the partsamerica.com exchange system works quickly and effortlessly. I just hope this alternator will last more than a few days. After installing it I drove around town and put about 50 miles on the car. The alternator seems fine and the car runs strong. I got on it a few times and it certainly feels as strong as the big block did, although the lack of torque is noticeable in second gear. I used to be able to break the tires loose from a roll in second. No more. That's not surprising and I am sure that the drag strip times will not be disappointing. This engine pulls like a freight train above 3000 RPM.
I also noticed that it is running fairly rich at WOT. My wideband was showing a steady 11.9:1. That is not surprising since I am using the LS7 tune up. Once the engine is broken in some more I will take it to my local tuner and tweak a little bit. There is no black smoke and no drivability issues at all. I should pull a plug.
On the highway there is still a little vibration above 80MPH. Before doing anything drastic I am going to double check the wheels and tires as well as the driveshaft. Since the car sat for a while it is entirely possible that the tires have developed some flat spots and that will certainly be felt at high speed.
Andrew
I got a replacement alternator in the mail today. I have to admit that the partsamerica.com exchange system works quickly and effortlessly. I just hope this alternator will last more than a few days. After installing it I drove around town and put about 50 miles on the car. The alternator seems fine and the car runs strong. I got on it a few times and it certainly feels as strong as the big block did, although the lack of torque is noticeable in second gear. I used to be able to break the tires loose from a roll in second. No more. That's not surprising and I am sure that the drag strip times will not be disappointing. This engine pulls like a freight train above 3000 RPM.
I also noticed that it is running fairly rich at WOT. My wideband was showing a steady 11.9:1. That is not surprising since I am using the LS7 tune up. Once the engine is broken in some more I will take it to my local tuner and tweak a little bit. There is no black smoke and no drivability issues at all. I should pull a plug.
On the highway there is still a little vibration above 80MPH. Before doing anything drastic I am going to double check the wheels and tires as well as the driveshaft. Since the car sat for a while it is entirely possible that the tires have developed some flat spots and that will certainly be felt at high speed.
Andrew
Good to hear it is on the road Andrew!
So are you just running the shaker hood for now?
Road trip to Joliet for the 06-07-08 race at Autobahn?
A good road course beating should take care of those pesky flat spots!
So are you just running the shaker hood for now?
Road trip to Joliet for the 06-07-08 race at Autobahn?
A good road course beating should take care of those pesky flat spots!
Thread Starter
Joined: Mar 2003
Posts: 10,617
Likes: 1,883
From: Little Austin
Andrew
Andrew
You have a couple weeks. At the rate you have been going thats plenty of time!
I'm w/ you on keeping the shaker. I know I saw one on here or PT that routed his intake tube to make it functional.
Aftermarket contol arms are plentiful for your year A-body. What is your current set up (tall spindle swap, correct)? I've seen ones w threaded rods that should do the trick.
-Shaun-
You have a couple weeks. At the rate you have been going thats plenty of time!
I'm w/ you on keeping the shaker. I know I saw one on here or PT that routed his intake tube to make it functional.
Aftermarket contol arms are plentiful for your year A-body. What is your current set up (tall spindle swap, correct)? I've seen ones w threaded rods that should do the trick.
-Shaun-
Thread Starter
Joined: Mar 2003
Posts: 10,617
Likes: 1,883
From: Little Austin
Andrew
You have a couple weeks. At the rate you have been going thats plenty of time!
I'm w/ you on keeping the shaker. I know I saw one on here or PT that routed his intake tube to make it functional.
Aftermarket contol arms are plentiful for your year A-body. What is your current set up (tall spindle swap, correct)? I've seen ones w threaded rods that should do the trick.
-Shaun-
You have a couple weeks. At the rate you have been going thats plenty of time!
I'm w/ you on keeping the shaker. I know I saw one on here or PT that routed his intake tube to make it functional.
Aftermarket contol arms are plentiful for your year A-body. What is your current set up (tall spindle swap, correct)? I've seen ones w threaded rods that should do the trick.
-Shaun-
I have those exact control arms heading my way as we speak.
Tonight I went to Beech Bend for their Saturday night test and tune. With the hood back on, passenger seat installed, half tank of gas, race weight was 3941 with me in it. I was running the same Nitto 555s that were installed back in 2002. Needless to say, they are a little hard. The temperature was about 85 degrees and very humid. After a few crusty passes, I managed to click off my best pass for the night.
60' 2.1
12.78 @ 111 MPH
I am pretty happy.
Andrew
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Verdad Gallardo 60' 2.1
12.78 @ 111 MPH
Nice!
I ran those 555s on the Z28 last year. They were great at the road course, but not much for the launch (even fresh).
Hope the control arms get you the caster. Get some pics of the instal if you can.
12.78 @ 111 MPH
Nice!
I ran those 555s on the Z28 last year. They were great at the road course, but not much for the launch (even fresh).
Hope the control arms get you the caster. Get some pics of the instal if you can.
Congrats on getting the beast back up and running plus shedding the 300lbs+ off the car. Hope you passed your GMAT man!
With a little giggle gas that car will fly! I think you can get better 60' times than that with 18psi a healthy burnout and some practice.
With a little giggle gas that car will fly! I think you can get better 60' times than that with 18psi a healthy burnout and some practice.
On The Tree
Joined: Aug 2007
Posts: 110
Likes: 0
From: So Cal
OK....After re-thinking the 1/4 time, weight etc calculates to about 396RWHP. So if I may your baseline was that and I will say you picked 20HP from tune.
I actually have no friggin clue.....but I want to know for some reason
I actually have no friggin clue.....but I want to know for some reason