My Summer Car

My Summer Car

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***** Dec 15, 2023 @ 12:23pm
[SOLVED] Satsuma Overheats while Accelerating
I've been trying to get that satsuma to run for ages now. I've just done a fix to the alternator as the battery wasn't charging properly. The satsuma will drive perfectly fine but whilst accelerating the temperature on the car keeps rising. The car can idle perfectly fine at a stable temperature but it's only while accelerating the temperature goes significantly higher. The car seems to be more stable using the choke (yes I have tuned the AFR) but even with the choke it will still overheat to the point of steam coming out of the car. Another thing I've noticed was while accelerating with an AFR over 14.2~ in neutral the car accelerates and stops and keeps accelerating and stopping in a loop. However with an AFR under 14.2~ The car keeps accelerating and never stops but the AFR slowly keeps lowering down as I do this. I've made sure my coolant pumps are screwed on and nothings leaking. My alternator belt / distributor / Valves and ect are tuned. Not sure what is wrong.
Last edited by *****; Dec 15, 2023 @ 3:19pm
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Showing 1-6 of 6 comments
[CZ]PatVas Dec 15, 2023 @ 12:37pm 
what is your average RPM? (asking as some people tend to incorrectly use manual cars, using the gear as a speed limiter.)
***** Dec 15, 2023 @ 12:50pm 
While idle I get somewhere around 10-20.
While accelerating in neutral 70-80
While accelerating in first without the handbrake (AKA normal driving) is around 20 but as accelerating increases to 40-50 maybe 60 if on long enough.
Last edited by *****; Dec 15, 2023 @ 1:26pm
Andy Houston Dec 15, 2023 @ 1:56pm 
Install the aftermarket radiator or remove the grill and hood.
I have done both and have a fully tuned engine i almost drive at 7-8k rpm all the time. I can do laps for hours at full speed around the highway.
I can drive the engine to comlpete faliure before the radiator starts to steam IF i keep it full of cooalnt at all times.

Can't help you with afr, strugling myself to find the best one. But the car behaves weird at accel when the sparkplugs are shot.
Tiretracker Dec 15, 2023 @ 2:06pm 
Places to check for heat are the oil level, and the coolant, and the water pump.

Your water pump might be failing as mine is about to go as well. Luckily its removable without much hassle other than loosening the fanbelt and removing the pully covering it.

Water pump is what runs the coolant through the engine so if its slowing down, you're getting less water moving and it don't matter how much coolant is in the radiator.

Additionally, check your rocker tuning, and make sure your exhaust valves are properly set; poorly set exhaust valves will build up heat quick.

Running the engine lean will generate more or less heat as running it rich, don't know the exact physics behind that one but it was mentioned in an update several years ago. IIRC for reference, 14.6 or 14.7 or so is the A/F ratio Fleetari sets it to when you order Factory tuning.
***** Dec 15, 2023 @ 3:18pm 
Originally posted by CZPatVas:
what is your average RPM? (asking as some people tend to incorrectly use manual cars, using the gear as a speed limiter.)
No you're right. I've been revving the engine too much causing the overheating. There is nothing wrong with the car. I'm just not good at driving. Thank you very much for this advice.
Tiretracker Dec 16, 2023 @ 10:52am 
Originally posted by CZPatVas:
what is your average RPM? (asking as some people tend to incorrectly use manual cars, using the gear as a speed limiter.)
Knowing how to drive stick always makes me feel so old...
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Date Posted: Dec 15, 2023 @ 12:23pm
Posts: 6