98 T-56; what is needed for 700-850 RWHP?
06-28-2011, 02:39 PM
#1
98 T-56; what is needed for 700-850 RWHP? As far as the tranny goes, what would be needed to handle 700-850+ RWHP? I am assuming a stronger fork, and maybe the tranny gears? This would be for the 98 Formula in my sig. I have no where near that power now, but down the road I plan on it, and wondered what would be needed then. I really have no idea. I am talking the tranny itself, not the clutch.
Any input would be greatly appreciated.
Any input would be greatly appreciated.
06-28-2011, 04:18 PM
#2
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Upgrade the mainshaft to a thicker one, upgrade the 2nd gear to the later style, upgrade the 3-4 fork to the steel version, upgrade the fork pads to bronze and the shift keys to billet over stamped. I live to change both the 1-2 and 3-4 shift keys along with the isolator cup to the bronze one on the higher performance rebuilds.
Along with that, you migh want to consider a oil pump system if you plan on running it hard or if its going into a heavy car.
Along with that, you migh want to consider a oil pump system if you plan on running it hard or if its going into a heavy car.
06-29-2011, 08:03 AM
#6
The fluid pump picks up fluid from the drain plug hole and returns it to the front driver side of the transmission case which when placed correctly sprays fluid drectly on the input and cluster gears. Tremec started using a variation of this idea on the T56 in the C6 Z06 and Z51 Corvettes in 2006. They use a mechanical pump driven off of the cluster gear. Unfortunately we f-body guys don't have an option for a mechanical pump. We have to use an electric fluid pump to circulate the fluid.
With enough power and heat this is usually the eventual outcome of an over powered T56.
On this Camaro TR6060 you can see the front return fitting for the fluid pump.
With enough power and heat this is usually the eventual outcome of an over powered T56.
On this Camaro TR6060 you can see the front return fitting for the fluid pump.
06-29-2011, 08:21 AM
#7
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Is the TR6060 a viable option of using in place of the T-56 in a 4th gen? I haven't read a lot into them just yet but there seems to be a lot of debate concerning them as well as the T56 Magnum in terms of which is stronger, but have not read much about swapping them into the older body styles.
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06-29-2011, 09:11 AM
#8
Is the TR6060 a viable option of using in place of the T-56 in a 4th gen? I haven't read a lot into them just yet but there seems to be a lot of debate concerning them as well as the T56 Magnum in terms of which is stronger, but have not read much about swapping them into the older body styles.
The standard T56 Magnum uses a 31 spline mainshaft which is much stronger than the stock 27 spline shaft in the T56. The gearset is wider in the T56 Magnum/TR6060. We have tested the TR6060 to over 1500hp. We have seen that it takes 1300rwhp in a 4200lb car to break 2nd gear in a TR6060. So we know for a FACT that the T56 Magnum/TR6060 is stronger.
We modify the T56 Magnum to bolt directly into the 4th gen f-bodies and GTOs. We modify a new F-body/GTO tail housing, new shift rail mechanism and GTO or F-body shifter block. We also upgrade the blocking rings which are prone to problems like the stock TR6060s. We install new compressed carbon blocking rings. We also upgrade the fork pads to machined bronze then do a full micro polish on all internal parts. We have quite a few customers on here running the modified Magnums with great results.
06-29-2011, 09:52 AM
#11
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Uh, I've replaced a 2nd gear on a GT500 making around 800 at the rear wheels. While it might handle 1300 rwhp, I definately wouldn't back that up with any kind of guarantee.
06-30-2011, 11:09 AM
#18
The shaft itself will be stock. But in all the years that our manual trans builder has been building T56 transmissions he has never seen an LT1/LS1 input shaft fail from horse power. He has seem some wear out from a loose fitting twin disk clutch or wear out the pilot bearing surface. But he has never heard of an LT1/LS1 input failing from excessive horsepower.
