S5D vs Fortin FRS5

RodSmith32

New member
Joined
Nov 9, 2022
Messages
4
Reaction score
2
I am looking to upgrade my transaxle and looking for input on the pros and cons of a S5D vs the Fortin FRS5. I have a large 4 seat car with a supercharged LS2. I currently have a Fortin wide gear 4 speed. I understand the FRS5 is pretty close to plug and play but the S5D is substantially cheaper. What do the experts say?
 
  • Like
Reactions: KLC
I have the FRS4 and it's noisy... But it works awesome, shifts smoothly, and holds up to a fairly high amount of power. The main drawback is the cost of repair. Gears (especially the R&P) and parts are very expensive. Mine went 7 years before a full rebuild.
 
  • Like
Reactions: KLC
I am looking to upgrade my transaxle and looking for input on the pros and cons of a S5D vs the Fortin FRS5. I have a large 4 seat car with a supercharged LS2. I currently have a Fortin wide gear 4 speed. I understand the FRS5 is pretty close to plug and play but the S5D is substantially cheaper. What do the experts say?
I would consider this FRS5. Plug and play option is very nice! I had no issues with the FRS5 i had in a prior class 1 car.

https://www.facebook.com/marketplace/item/1096330259065714/?mibextid=wwXIfr
 
  • Like
Reactions: KLC
I am looking to upgrade my transaxle and looking for input on the pros and cons of a S5D vs the Fortin FRS5. I have a large 4 seat car with a supercharged LS2. I currently have a Fortin wide gear 4 speed. I understand the FRS5 is pretty close to plug and play but the S5D is substantially cheaper. What do the experts say?
Curious, are you changing over for the 5th gear, the sequential shifting, or to handle more power? I have the Fortin 4 speed H-pattern now, I know they're pretty tough.
 
  • Like
Reactions: KLC
Something to check I believe the SD5 has a bit wider CV cup face flange to flange distance than the fortin . It may require shorter axles.
Shorter axle means more cv angle / less travel .
 
Curious, are you changing over for the 5th gear, the sequential shifting, or to handle more power? I have the Fortin 4 speed H-pattern now, I know they're pretty tough.
I am mainly looking to handle more power. My wide gear has been pretty good, lasted 5 years before a major repair. I actually prefer the traditional shifting pattern but understand the structural benefits of the sequential.
 
  • Like
Reactions: KLC
If the FRS5 is a plug and play swap I would go that route. Fab and paint adds up quick. I would think the bigger r&p in the D box would move a lot of stuff up and back. That could throw the balance of your car off. I have had really good luck with Fortin trans and they shift the best out of all the transaxles. I know some of the big HP guys have complained about durability but they are running 35.5’s with 2k+ HP. I have a S5D in both of my cars but they started that way and for the money they are the best in my opinion. I have never broken one.
 
Back
Top