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Old 05-04-2026, 12:10 AM
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Formulabruce Formulabruce is offline
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Originally Posted by 72projectbird View Post
Thanks guys. I'm quite happy with it so far.

One of the things I need to fix is the hot start. Once the car gets a little heat soaked, it isn't too happy restarting. The other day the coolant temp only got to about 155°, but trying to start it a few minutes after sitting was a chore. Ended up having to hold the throttle to the floor.

Seems like the fuel might be boiling over in the carb? Right now I'm running a regular thickness carb gasket, non insulated steel fuel line from pump to carb, and the heat crossover on the intake isn't blocked off.

I have a feeling that's gonna have to change.







Unfortunately not yet! That's one of the things I need to diagnose why it's not working. Everything is new, so it shouldn't be too difficult.
Idle circuit is lean.....
Put a gun on the T stat and the fuel bowl and get some accurate temps. ?/

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Old 05-05-2026, 10:10 AM
Tellyshavilli Tellyshavilli is offline
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Carr looks fantastic. Congratulations.

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Old 05-06-2026, 09:18 PM
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72projectbird 72projectbird is offline
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Thank guys. It certainly has come a long way. Once it starts getting some real miles put on it, I'll grab some more pics.



Quote:
Originally Posted by Formulabruce View Post
Idle circuit is lean.....
Put a gun on the T stat and the fuel bowl and get some accurate temps. ?/
I verified temps with a gun. Water neck/cross over was 150-155°, but even running as cool as it is, it does not like restarting.

I'll have to revisit it soon. Been busy with a bunch of stuff lately

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1971 Trans Am 5.3 LM7
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  #4  
Old 05-15-2026, 09:19 AM
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VCho455 VCho455 is offline
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Originally Posted by 72projectbird View Post
Thank guys. It certainly has come a long way. Once it starts getting some real miles put on it, I'll grab some more pics.





I verified temps with a gun. Water neck/cross over was 150-155°, but even running as cool as it is, it does not like restarting.

I'll have to revisit it soon. Been busy with a bunch of stuff lately
Might try checking the spark quality next time it acts up. It's possible the coil isn't happy when warm.

I've got one of these nowadays but for years I used an old spark plug that I modified by cutting off the electrode tang and replacing it with a piece of coat hanger I brazed to the plug so I could have at least a 1/2" gap for the spark to jump.
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Old 05-15-2026, 11:49 AM
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Quote:
Originally Posted by VCho455 View Post
Might try checking the spark quality next time it acts up. It's possible the coil isn't happy when warm.

I've got one of these nowadays but for years I used an old spark plug that I modified by cutting off the electrode tang and replacing it with a piece of coat hanger I brazed to the plug so I could have at least a 1/2" gap for the spark to jump.

I'll definitely look into it.

The weather has been horrible here. 40s and 50s with rain almost every weekend, so the car has just been sitting. Looks like the weather should break soon though, so hopefully it'll be out and about.

The car was chosen to be in a invite only class at a large car show this June. It would be nice to actually drive the thing before taking it to the show lol

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