The 83GT
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BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
1982GT likes this post
Re: The 83GT
dfree383- BBF CONTRIBUTOR
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Join date : 2009-07-09
Location : Home Wif Da Wife.....
BigBlockRanger and Mark Miller like this post
Re: The 83GT
So happy that hurdle is cleared!!
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
Wow, this thing starts quick and is soooo snappy.
Reminds me of when I first lit off the 545 in this car with the 950 Holley many years ago.
Accel enrichment needs some work, but even so it sounds gooooood.
Just needs mufflers so I don't go deaf monkeying with it. I have one tiny water leak at a fitting I neglected to use sealer on, but otherwise everything is good.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
Mark Miller- Posts : 1948
Join date : 2009-09-01
Re: The 83GT
In this one the base timing is set correct.
https://youtu.be/Ll9fQ464_iE
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller and 1982GT like this post
Re: The 83GT
I figure it will do fine for now. It will get all changed up anyway when the turbo phase of this project gets under way.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller and John Myrick like this post
Re: The 83GT
Cranked up the coilovers to get the ride height back. I may need to go to a heavier spring. I think these are 150's and they are struggling. I may get some 200's.
Remflex collector gaskets are already toast. Back to dead soft aluminum, which worked fine, I just thought the Remflex would be worth a shot. Nope.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Re: The 83GT
BigBlockRanger wrote:Added a tab to mount the nitrous WOT microswitch. Currently jetted for a "125" shot, which will probably be more like a 90 shot on an engine this size.
Cranked up the coilovers to get the ride height back. I may need to go to a heavier spring. I think these are 150's and they are struggling. I may get some 200's.
Remflex collector gaskets are already toast. Back to dead soft aluminum, which worked fine, I just thought the Remflex would be worth a shot. Nope.
I have heard a lot of people say they like the Remflex gaskets i tried them once!!The Header Gaskets and they stuck so bad when i removed the headers they were junk never again!!I have also used the soft aluminum collector gaskets with good results!!
Mark Miller- Posts : 1948
Join date : 2009-09-01
BigBlockRanger likes this post
Re: The 83GT
Too bad it was raining or I would have taken a lap around the parking lot. Not gonna complain about the rain though.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller and 1982GT like this post
Re: The 83GT
12" 200# front springs are installed along with new brake pads. It's the first set off pads I've put on it since I built it in 2010.
Just like the last set, I had to clearance the pad's plate because it drug on the rotor's hat. These are 5 lug Ranger rotors.
I almost can't believe it already has the big block back in it.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
Actually it was not *completely* unexpected because that particular plug didn't seem as tight as the others when I installed it. The funny thing is I almost bought oversize plugs but decided to use standard size. Ooof.
It was running at a consistent 165 before I got froggy with the throttle. I looked down and thought "dang the water temp sure popped up", Then I noticed the fan was off. Flipped it on and drove on back to the shop. Pulled in the shop and noticed a trail of water. Suspecting that plug, I looked under it and yep, gone-zo.
Despite the hiccup, the thing was running freakin great. So happy with it.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
Fill it full oil, put the water in, it fire it up everything was fine. Took it for a short drive and got on it pretty hard a couple of times everything seemed good. Came back to the shop looked it over and then went back out for one more drive and really put the screws to it and *pop*goes the weasel. A plug on the opposite side of the engine popped out. Great.
The oversize plugs were a bust. They wouldn't go in at all. I have no idea why they even recommend them for this engine. The one I loctited in yesterday was a shallow style plug that I had left over and it's currently fine. I just went to O'Reilly's and bought deep core plugs (0.5" approx. Part no. 555-028) which I should have used the first time, but we're actually not recommended for this engine by O'Reilly so I didn't think to ask for them. The one's I pulled out (because one was rusting thru) were a deeper style plug.
I am going to install the deep plug in the one that popped out and I'm also going to put my Meziere electric water pump on this thing. I have it, I might as well use it and never worry about too much pressure in the cooling system ever again.
I hate cars.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Re: The 83GT
I went back to my build thread on Bangshift and looked at what I went through back in 2012. I didn't have problems with core plugs back then, but it was puking water out the upper hose radiator cap thingy at high rpm. I put a gauge on it and it was ~20 psi at idle and would shoot up when you winged the throttle. I switched to an electric pump and it worked fantastic from then on.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
69F100- BBF CONTRIBUTOR
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Join date : 2009-01-04
Age : 57
Location : Irwinville Ga.
BigBlockRanger likes this post
Re: The 83GT
I bought an inexpensive pump as a spare for Raceweek and it came with everything. Backing plate, gaskets, electical connector, hardware, hose adapter, etc. I used the black backing plate and the hardware.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
Works good.
Hot start need work. I believe I have way too much start retard (probably don't need any) and I think that is fighting me.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
I drove it home for lunch and I tried really hard to break it...... so very unintentionally though.
I went and filled it up with gas, then as I was driving down a street near my house, I ran it up hard in 1st, pulled 2nd, then went to poke it in neutral so I could coast to the next stop sign. Going to neutral is a normal thing I used to do all the time. Squeeze the handle and ram it into N, (Reverse pattern shifter and reverse is completely locked out), and just coast down. No biggie. Well, I guess the shifter cable is still not adjusted 100% right because it went back into 1st..... at a fairly high rate of speed. The back tires immediately start sliding and hopping all over the place. Engine dies and I am certain I have just completely killed it.
I roll up to the stop sign, roll through slowly and park on the street in the shade of a tree, completely dejected. I try the key, nothing. No power at all. I get out and walk to the back of the car. Sure enough, the violence of the incident tripped the battery shutoff switch. Holy smokes. I pop the hood, look around and everything looks fine. I fire it up (hot start test #1 haha) and it sounds like it has a miss. Great. It probably overrevved and bent a pushrod. I ease it down the street to my house and park it in the driveway.
After I eat some lunch, I head out and pull the passenger valve cover. Everything looks perfect. Greeeeaaaat. As I am looking at the top of the head, my focus sharpens on the #4 spark plug wire lying between the header tubes. It shook so hard it knocked the #4 plug wire off. Wheeeew.
Cranked it up and it is completely happy, like nothing had ever happened. I hopped in and gingerly drove it back to work. Everything seems to be working fine. The trans seems ok and I certainly hope that it is. Water temp came up to 186 and pretty much stayed there the whole time.
Disaster averted. I think.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
I rewired it today prioritizing power to the starter and I think I fixed it.
Drove it around the parking lot without the fan on, did a titanic all three gear burnout and got it up to 197 degrees. Shut it off and it spun right over and fired up. I did it several times to verify. Whoo hoo.
Cars are not stupid today!!
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
I also installed the new belts and put the door bars back in the car. Idk if it will be quick enough to need either one, but I rather have them in place.
Got the Nitto drag radials mounted today. These will allow us to run a True Street class at Raceweek if we want. I have some 28/10.5's on another set of wheels, but TS requires a DOT approved tire.
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
69F100- BBF CONTRIBUTOR
- Posts : 5386
Join date : 2009-01-04
Age : 57
Location : Irwinville Ga.
BigBlockRanger likes this post
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
Re: The 83GT
nice build you got going there just curious on your fuel injection system if you could fill me in on the details? what kind of rails you use to feed your injectors? what kind of ecu you useing? that system does not use a maf sensor or is it built into the throttle body? how many hp can this system handle?
man i had to many fox bodies back int he day would like to find another one.
maverick172- Posts : 205
Join date : 2022-10-16
Re: The 83GT
BigBlockRanger- Posts : 1260
Join date : 2008-12-02
Age : 53
Location : Amarillo
Mark Miller likes this post
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