250 WHP Supernatural 3.4 Build (Page 21/47)
La fiera APR 12, 07:46 PM

I took the cover off my Fiero to look at how much space I have to see if I can pull the trans from the top and leave the engine in place, and while measuring I found this crack on the other side of the trans that I didn't see before! This means that the crack went all around! I'm thankful it didn't completely came apart while I was driving!
La fiera APR 30, 09:58 PM


On previous track events the alternator stopped charging. After some investigating I found out I was over revving it. After some calculations I was able to dial the alternator gear ratio to produce max amps at the max RPMS without stressing it and also saving me some power in between! Sorry for the lateness but a broken transmission is hindering me from proving a strategic built 3.4 push rod is capable to make over 250WHP.

edit for spelling

[This message has been edited by La fiera (edited 04-30-2018).]

Spadesluck APR 30, 11:53 PM
Cracking the trans case like that is impressive. What impresses me is the trans was still working right?

[This message has been edited by Spadesluck (edited 04-30-2018).]

Blacktree MAY 01, 10:30 AM
Now imagine how badly your water pump is cavitating at high RPM. This is why I use an underdrive pulley on my engine (plus a couple extra HP at high RPM).
La fiera MAY 01, 11:09 AM

quote
Originally posted by Blacktree:

Now imagine how badly your water pump is cavitating at high RPM. This is why I use an underdrive pulley on my engine (plus a couple extra HP at high RPM).



Yes Mike, I'm working on installing an electric water pump to save some ponies. I also have an underdrive pulley on the crank and just got an overdrive pulley for he alternator. The only test I have to do is the amps at idle which I'll do today. The pump I'll use draws 11-13 amps at full flow. Did I mention I have a 220Amp alternator?
Spadesluck MAY 01, 12:36 PM
Thats a big amp for a race setup. I would think you would not need that many amps for track day. You are not running a radio, ac, and other creature comforts that requires amps.
Blacktree MAY 01, 01:47 PM

quote
Originally posted by La fiera: Yes Mike, I'm working on installing an electric water pump to save some ponies.


Cool! What type of pump are you using? Too bad there aren't any "bolt-on" electric water pumps for the 60-degree V6.
La fiera MAY 01, 02:06 PM

quote
Originally posted by Spadesluck:

Thats a big amp for a race setup. I would think you would not need that many amps for track day. You are not running a radio, ac, and other creature comforts that requires amps.



Yes it is a lot but as the alternator gets hot it produces less amps. So that's why I got this one.
lou_dias MAY 01, 02:39 PM
My plan is to do away with the alternator for racing. I bought a 100AH Battleborn LiFePO4 battery. Should let me drive to the track, race and drive home. I'm going to rig a 12v battery charge controller and 100W solar panel to keep it charged up between events... Heck, if you come up with a good solution for electric water pump, I'd get a 2nd battery to run that...

I'm hoping I can install one of those electric water pump drive kits where the alternator would have been to drive the stock water pump...

[This message has been edited by lou_dias (edited 05-01-2018).]

La fiera MAY 05, 10:29 PM

This is my Alt. melting at high RPM even with the alt. fan working. So, as you can see I have to improve airflow to the alternator!


This was my alt. pulley.


This is my alternator pulley now. It's overdriven to lighten load throughout the entire RPM.

Electric water pump set up will be next.

PS. Waiting for the Limited slip diff for my other M19. F23 will have to wait. Can't believe that one mount not available in a kit will prevent me to use the F23 now. I'll save the F23 for the 300WHP Supernatural and hopefully by that time a rear mount will be available, If not I'll me my own kit.