Save with Sipple Speed and Performance Max Effort HP90 Transmission and Torque Converter Combos for Hellcats & Redeyes.
We only offer one level of transmission the "Max Effort". These are the race proven, fully built transmissions. Billet E Drums, performance steels and frictions all assembled to SSP's precise specifications.
We don't just throw a bunch of clutches in and hope for the best. There is a reason Sipple's Max Effort Transmissions lead the lists online, and the winner's circle at the track.
Your Trans and 'Verter will arrive assembled, full of fluid, and ready to install. You'll also save over $300 on fluid and headaches.
HP90
(Hellcat/Redeye/Demon)
Description
MAX EFFORT HP90 Build Service
All tolerances and specs set to MAX EFFORT standards.
- Set clutch & hard part clearances
- Install Billet E Drum
- Bench test unit
- Recalibrate valve body to MAX EFFORT specs
- Trans filled with fluid for plug and play
Specs
- Billet E-drum
- Extra capacity performance frictions/steels
- Upgraded stator bushing
- Upgraded rear bearing
- New seals & gaskets
- New pan filter
- New pump & chain
- Valve body recalibration
- Build new separator plate & valve body
- New pump bolts
- Proprietary modifications to input/output shafts
- New output shaft nut
Billet Input Shaft
The billet input shaft is an add on to the Max Effort 8 speed. ($1,895)
We recommend this option for the following:
- HP70/75 over 1000 wheel horsepower
- HP90/95 over 1200 wheel horsepower
The billet input shaft is made with improvements over the OE shaft for oiling and fit. This input shaft is made of billet steel vs OE standard material.
The billet shaft has been tested to 2100 HP so far with zero stress wear.
Vehicles
- 2015-2023 Hellcat Challenger
- 2015-2023 Hellcat Charger
- 2018 Demon
Variations
- 2015-17
- 2018-23
- TCMS different 1st gen/2nd gen
MAX EFFORT
8 Speed Torque Converter
Description
SSP Custom ZF 8 Speed Torque Converter
Specs
- Billet stator
- High performance frictions
- Extra capacity
- Performance bearing
- tig welded
Vehicles
- 2015-2023 Hellcat Challenger
- 2015-2023 Hellcat Charger
- 2018 Demon
Mounting Pad Options
- Stock Mounting Pads
- Billet Mounting Pads (+$500 | 2 Week Lead Time)
Billet Mounting Pad Option
As the power increases north of 1000 wheel HP the flexplate does just that, flexes to a point where the mounting flange on the factory converter cracks and breaks apart. This issue is becoming more common as these units age and power increases.
The billet mounting pad was developed to mitigate this issue. The factory mounting plate is removed and the billet pads are TIG welded into place and then the converter is balanced to ensure smooth operation. Existing billet stator converters can be sent in to have the billet pads installed. Please
email us for details.
Stall Options
HP90/95 Stall Options:
- 2200
- 2600
- 3200
- 4000 (turbo applications)