Lt1 Fiero Owners. (Page 11/15)
La fiera JAN 18, 06:38 PM

quote
Originally posted by str8maxn:

Hello All,

With the help from La Fiera, I was able to get the pump working. Turns out I had a trap between the radiator and the water pump. Similar to would you find on your sinks and toilet; the S Bend. So I was not supplying the pump with water.
I re did the inlet to ensure a drop and leveled the hose ensuring no upward bend. Ran the car for over 30 minutes, in test mode 3 , using the TinyCWA (100% pump \ Fan ON) keep the care below 160 Degrees. I still need to install the temp sensor that came with the kit.
La Fiera... I can't thank you enough sir.



My pleasure Sir! We should make a "How to page" on this upgrade for others to benefit.

str8maxn FEB 20, 05:00 PM
Hello All,

Hope everyone is doing well. Latest update and issue.

Update - I finally got around to installing the rear C4 brakes. Man what a difference; much better that before. The setup is C5 fronts \ C4 rears. Special Thanks to Chris for the rear brackets.

For those running C4 rears; how did you setup the Emergency brake ? Any pictures?

Issues: After replacing the MSD Optispark. It is running super rich, to the point you can smell it on a drive. Does anyone have any suggestions for leaning out?
The Optispark I am running does have a nob on it to adjust time; if this helps.


Thanks JM
str8maxn APR 18, 11:35 AM
Hello all,

I figured out a few of my fuel injectors were bad. I got a new set and this appears to have corrected fuel issues.


Question for those running LT1's - My temperature doesn't appear to be actually measuring the correct temperature. Temp gauge is maxed out but a Temp gun, shows I am running at 190 Degrees and a temp gauge radiator cap confirms this reading.
Any suggestion?
I am also having issues with the E brake. After replace the E brake handle and cables there is not enough tension to hold the car in place. Even when I max out the adjustment nut. thoughts?


str8maxn APR 22, 11:40 AM
Calling out My LT1 swapped owners...

As you many know , I went with a BMW electric water pump that is controlled by the TinyCWA controller. I am running the pump in mode "D" \ Pulsed mode \ 90°C / 194°F.

My concern is the stock Fiero temp gauge. It's maxed out, here are the temperatures I saw yesterday after a short drive. I used a digital temperature gun to get these readings.


157 Degrees >> Top Inlet of the stock Fiero radiator.
120 Degrees >> At the radiator cap
152 Degrees >> At the rear pipe before entering the stock water pump housing
187 Degrees >> Rear corvette reserve tank
217 Degrees >> At the rear facing cylinder Head
Max out >> stock Fiero temp gauge

Are these temperatures within range?
Is there a way to correct the stock temp gauge?
Or should I consider using an after market gauge?





cyrus88 APR 22, 03:18 PM
1: Is the temp gauge maxed out from the key on position with the engine completely cool? Or,

2: does the temp gauge start from low and rises to max when the engine is running?

In the first case, it's a temp sensor, gauge, or wiring problem. The second case implies that there is a flow problem and that the cylinder head is really hot or the temp sensor is "wonky" and works only until it warms up.

[This message has been edited by cyrus88 (edited 04-22-2022).]

str8maxn APR 22, 03:27 PM

quote
Originally posted by cyrus88:

1: Is the temp gauge maxed out from the key on position with the engine completely cool? Or,

2: does the temp gauge start from low and rises to max when the engine is running?

In the first case, it's a temp sensor, gauge, or wiring problem. The second case implies that there is a flow problem and that the cylinder head is really hot or the temp sensor is "wonky" and works only until it warms up.





Car starts off with the needle at its lowest position and slowly climbs till its maxed out. Which I think is 260 degrees.. but using the temp gun ... I can't find anything that high. Highest temp was at the cylinder head @ 217
cyrus88 APR 22, 04:28 PM
The temp sensor for the gauge is in the front cylinder head toward passenger side, so check there. It may be a bad sensor or wire to the sensor.

The temperatures you posted shows that the coolant is cooler at the radiator, which means that the car wasn't running long enough to open the thermostat.
str8maxn APR 23, 04:21 PM

quote
Originally posted by cyrus88:

The temp sensor for the gauge is in the front cylinder head toward passenger side, so check there. It may be a bad sensor or wire to the sensor.

The temperatures you posted shows that the coolant is cooler at the radiator, which means that the car wasn't running long enough to open the thermostat.




Hello Cyrus88 .. I am not running a thermostat and I cut out the propeller out of the stock LT1 water pump. I am only running the BMW electric water pump on the tinyCWA controller.

I'll check the sensor and wire this week.

cyrus88 APR 24, 12:31 AM
Would you post a diagram of exaxtly how you are running your cooling system pluming?
str8maxn APR 24, 02:01 PM

quote
Originally posted by cyrus88:

Would you post a diagram of exaxtly how you are running your cooling system pluming?




Is this what your looking?


[This message has been edited by str8maxn (edited 04-25-2022).]