Dave,
are you saying that Teague is making a replacement gear for the XR?

I am working on that.. care to make a donation?

I believe teague swaps outs gears, shafts, and bearings.
Teague will warranty his XR for one year up to 900HP.

I think the way he "plays" is that he will take your drive and rebuild the whole thing with his hand selected heat treated parts.

One guy here on OSO has 2 seasons on a 130MPH cat with them.


Uncle Dave

P.S. Uncle Dave - at above 6# of boost, it is necessary to run 91 fuel in order to eliminate any posibility of detonation on a hot day, which would kick the motor into Guardian mode and slow the whole show down.[/QUOTE]


You mentioned 8lbs earlier from a whipple mod- can you really go that high on 91?

On the water access to good fuel is a problem Ive never solved and has cost me many a supercharged engine rebuild.

Uncle Dave

Heres what teague says they provide. My unit came with an imco lower.

• Torsional Vertical Shaft (TVS) - The secret to our drive success. Relieves torque loads tothe forward drive gear and bearings during hard acceleration and/or hard re-entries.
• TCM heavy duty Platinum 1 1⁄4” propshaft made from heat-treated stainless steel,designed for maximum strength and optimum performance.
• Larger U-joint assembly than standard Bravo I, to handle increased horsepower and torque.
• TCM Platinum gears NEW!!!
• Billet top cap designed to hold precise tolerances, increase strength, and prevent deflection in upper case.
• Platinum XR gear housing includes SS tower for added strength.
• Net forged bevel straight cut tooth gears have redesigned upper gear socket floor for
enhanced strength and durability.
• TCM Billet Bearing Carrier to support propshaft.
• Low & Dual Water Pickup gear cases designed to enhance reliability for step-hull designed boats with elevated engine installations and/or when operating the drive at higher trim angles. This design improves the flow of cooling water to the engine and prevents
aeration
• Lower cases available in standard, 1” and 2” lengths.

Uncle Dave

Uncle Dave,

The innercooler that whipple uses is highly efficient at reducing the intake charge temperature. All of Mercury's 700sci - 1200 sci motors are able to run on 91 octane. The 600 is rated at 87 octane due to its relatively conservative 4.5 lbs of boost.

Whipple also re-routes the water routing to my innercooler to bring it cooler water, and thereby reduce inlet temperature.

A stock 600sci produces aproximately 625hp at the crank, and 600 at the prop. Boost is limited so as to not surpass this horsepower rating by reducing the boost on the bottom end, to not eat outdrives, and on the top end to make it only produce 600 horsepower.

Just the PCM reprogram is worth 75 horsepower. Re-routing the inlet water and changing over to a smaller blower pulley for more boost gives you aproximatley another 60 horsepower. Changing over to the 700sci cam, and going with the next larger innercooler will net you 800 hp. One more smaller pulley nets you aproximately 875 hp.

The 600sci is a very de-tuned motor.

Chris

Uncle Dave,

I believe that the Teague Platnum drive is just a re-labeled IMCO Extreme SC drive. The torsional shaft is also an IMCO piece. The gear-set is Bravo XR stuff.

I may be wrong... but that is what my reasearch and talking to IMCO and Teague has led me to believe.

I do believe that Teague assembles the parts and checks the tolerances themselves.

Chris

They are different drives.
You can see this is if you look at them side by side.

Are you going to do any of the mods you mention after the warranty expires or before?


Uncle Dave

I supplied the drive, therefore there is no warranty.

The warranty on the motor expires in Febuary.

Chris