Home ] Site Map ] Subaru ] Multi-Tune ] Contact Us ]  
  ECUtuner ] [ 4eat ] 4eat Valve Bodies ] SVX Engine Management ]  
   
 
Subaru Phase I Enhanced 4eat
for the Subaru SVX
  • Larger clutch packs
  • Upgraded friction materials
  • Upgraded seals
  • Increased apply pressures to clutches
  • Remanufactured torque converter
  • Lightning fast shifts
  • Smooth street operation and extended longevity
  • High torque holding capacity for heavily modified cars
 
  The enhanced 4eat Phase I four speed automatic transmission was used in Subaru vehicle model years starting in 1990 and ending in 1998.  The quantities of clutches in the clutch packs of the factory units varies by model with higher output engines and heavier vehicles requiring more clutches in certain clutch packs.  The original equipment transmissions used in the Subaru SVX, our specialization, have the highest clutch count and torque carrying capacity.  4.11 and 4.44 ratio transmissions used in other Subaru models came with weaker clutch packs but can be used in an SVX (requires changing rear differential gear and a modified TCU) when the clutch packs are properly modified for the application.  In our transmissions we increase the quantities of clutches in the packs which typically slip/fail to hold much more torque than the best factory 4eat ever could.  We also use a more advanced clutch material with a higher coefficient of friction to further reduce slippage under high load and with much higher resistance to wear.  We also increase the apply pressures presented to the clutch packs to further increase their torque carrying capacity.  The combination of all 3 measures together greatly reduce slippage and as a result transmit more engine torque to the wheels while greatly reducing wear to the transmission.
 

A quality remanufactured torque converter of OE specs is included with each transmission.  The transmission is shipped in a well engineered crate, the box section of which removes in one piece after removing the screws along the bottom edge.  The boxed, new torque converter sits on a shelf/brace which aligns and braces the transmission inside the crate.    When a transmission is being shipped to you before you have provided a core unit to rebuild there is a $750 core charge/freight deposit.   The core is then shipped back in the same crate the rebuilt transmission was shipped in (which can be done on our freight account).  The actual cost of freight will then be deducted from the core charge/freight deposit and the difference refunded unless there is hard parts damage in the core unit.  Hard parts damage is rare but it does occur.  It is almost always evidenced by pieces of roller bearings being found in the pan so it can be checked for up front.

We've found that supercharged SVXs can and do sheer the inner transfer clutch drum off of the drive gear.  For extreme output applications like this we offer and recommend a modified drive gear and transfer clutch drum assembly.

Warranty notice:  Should your performance rebuilt 4eat transmission fail to operate correctly when first installed you may return it to ECUtune, Inc. for repair.  If a defect in our rebuild is found the repair will be made free of charge.  If damage is a result of installer error repair will be made at customer's expense.  ECUtune, Inc. is not responsible for any incidental expenses (i.e.: freight, labor, fluids, etc.).  No warranty is made or implied past the date of installation.  Refunds will not be given under any circumstance.

 
  Transfer clutch drum upgrade $200 installed
   
           
  3.545 Ratio AWD 4eat Transmission $3,700 + $750 core charge/freight deposit 
   
           
           
     
 
Site Map             
ECUtune, Inc.     8119 SW 191st ST.     Miami, FL 33157     305.546.9359