High-Power Alternator technical forum

16 topics in this forum

1. Video: Classic Retrofit high-output alternator producing 75A at tickover/idle

   By classicretrofit, June 10, 2020
   • 0 replies
   • 1.9k views
   • 
   • classicretrofit
   • June 10, 2020

2. Video guide to our high-output alternators

   By classicretrofit, June 10, 2020
   • 0 replies
   • 1.9k views
   • 
   • classicretrofit
   • June 10, 2020

3. Spacers for 993 fan hub

   By ahendy, December 18, 2025
   • 2 replies
   • 941 views
   • 
   • Jonny Retrofit
   • January 5

4. Alternator pulley nut size

   By austria3, May 27, 2025
   • 1 reply
   • 916 views
   • 
   • Jonny Retrofit
   • July 23, 2025

5. Alternator wiring - SOLVED

   By James Petty, October 21, 2024
   • 2 replies
   • 1.2k views
   • 
   • James Petty
   • January 9, 2025

6. 175 Amp Wiring - 1971 911E MFI

   By Sir Ken, August 23, 2024
   • 3 replies
   • 1.5k views
   • 
   • James Petty
   • October 21, 2024

7. Upgraded (red) positive cable routing to starter solenoid

   By mja, December 4, 2023
   • 3 replies
   • 1.2k views
   • 
   • Jonny Retrofit
   • September 29, 2024

8. Deflector Shield won't fit

   By Nick W, May 8, 2024
   • 3 replies
   • 1.1k views
   • 
   • Nick W
   • May 9, 2024

9. Alternator Upgrade - Porsche Technical Bulletin Question (Regulator Delete)

   By Jason Wright, March 19, 2024
   • 3 replies
   • 1.4k views
   • 
   • Jonny Retrofit
   • March 27, 2024

10. 240A HIGH OUTPUT ALTERNATOR LOW ON VOLTAGE

    By ptseng, August 26, 2023
    • 5 replies
    • 1.7k views
    • 
    • Jonny Retrofit
    • September 7, 2023

11. 175a Alternator on 993 Engine - cable connections

    By ahendy, June 30, 2023
    • 2 replies
    • 1.6k views
    • 
    • Jonny Retrofit
    • July 21, 2023

12. 964 alternator unable to sustain voltage/High Compressor Speeds

    By reinartdesign, June 13, 2023
    • 3 replies
    • 1.4k views
    • 
    • Jonny Retrofit
    • June 30, 2023

13. Upgraded Alternator for Porsche 912-Karmann Ghia-early VW

    By Justin, October 5, 2021
    • 6 replies
    • 3.6k views
    • 
    • John Capua
    • February 2, 2023

14. Woodruff key cut not deep enough on alternator that was made 2019

    By Hannu911, June 26, 2022
    • 6 replies
    • 1.7k views
    • 
    • Hannu911
    • July 2, 2022

15. 3.2 Carrera versus SC fan centers

    By Hannu911, June 6, 2022
    • 2 replies
    • 1.5k views
    • 
    • Hannu911
    • June 7, 2022

16. About our upgraded alternators for classic Porsche 911s

    By classicretrofit, April 24, 2020
    • 0 replies
    • 1.8k views
    • 
    • classicretrofit
    • April 24, 2020