How many guys are using trans blankets?
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TECH Addict
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From: Rock Hill, South Carolina
How many guys are using trans blankets? trying to make my SS the safest i can im already planning to do the blowproof bell housing but what else is there to do?
will a trans blanket really work if something fails?
will a trans blanket really work if something fails?
Flwheel, clutch, and trans protection as per IHRA/NHRA
At 11.49 seconds ET or quicker a stick shift car must have.
SFI 1.1 or 1.2 flywheel, clutch and pressure plates mandatory.
The use of stock type cast iron flywheels or pressure plates is prohibited.
SFI 6.1 (single disc), 6.2, 6.3 (multi disc), or 9.1 flywheel shield.
Section 2.6 ..flywheel shield & motor plates word for word from the book.
Where an SFI 6.1, 6.3, or 9.1bellhousing is mandatory, a full, one-piece motor plate is also mandatory at the rear of the engine block.
The motor plate must be constructed of 6061-T6, 7075-T6, or 2024-T3 wrought heat-treated alumunum alloy plate, minimum 1/8" thick for 6.1 or 9.1 apps or 3/16" thick for 6.3 apps.
The flywheel shield must be fastened to the engine and motor plate (upper) with a minimum of 7, 3/8" grade 8 bolts or high strength studs at the top to the motor and 8, 3/8" grade 8 bolts or high strength studs at the bottom to the motor plate (lower). Allen bolts prohibited.
Nowhere in either book does it say that a trans blanket is ok in place of the required flywheel shield/motor plate on any app. requiring a clutch.
Nowhere does it say that just a flywheel shield is OK either. You must use a motor plate too.
SFI 4.1 trans blankets are only OK and required for 10.99 and faster automatic trans cars.
At 11.49 seconds ET or quicker a stick shift car must have.
SFI 1.1 or 1.2 flywheel, clutch and pressure plates mandatory.
The use of stock type cast iron flywheels or pressure plates is prohibited.
SFI 6.1 (single disc), 6.2, 6.3 (multi disc), or 9.1 flywheel shield.
Section 2.6 ..flywheel shield & motor plates word for word from the book.
Where an SFI 6.1, 6.3, or 9.1bellhousing is mandatory, a full, one-piece motor plate is also mandatory at the rear of the engine block.
The motor plate must be constructed of 6061-T6, 7075-T6, or 2024-T3 wrought heat-treated alumunum alloy plate, minimum 1/8" thick for 6.1 or 9.1 apps or 3/16" thick for 6.3 apps.
The flywheel shield must be fastened to the engine and motor plate (upper) with a minimum of 7, 3/8" grade 8 bolts or high strength studs at the top to the motor and 8, 3/8" grade 8 bolts or high strength studs at the bottom to the motor plate (lower). Allen bolts prohibited.
Nowhere in either book does it say that a trans blanket is ok in place of the required flywheel shield/motor plate on any app. requiring a clutch.
Nowhere does it say that just a flywheel shield is OK either. You must use a motor plate too.
SFI 4.1 trans blankets are only OK and required for 10.99 and faster automatic trans cars.
Last edited by 1BADAIR; Jan 6, 2009 at 01:09 AM.
I ran a blanket on my car when there was no bellhousing available. Eventually McLeod released their housing and I got one of those, and sold the blanket.
Now that bellhousings are available, I'd run one of those over a blanket for sure.
A blanket is OK, but a bellhousing is better. I think a blanket would contain a 'mild' event, but not a 7k rpm clutch explosion.
Now that bellhousings are available, I'd run one of those over a blanket for sure.
A blanket is OK, but a bellhousing is better. I think a blanket would contain a 'mild' event, but not a 7k rpm clutch explosion.
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Joined: May 2005
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um, yes, it would absolutely help. i could care less about the rules. I generally use safety equipment because I either:
A. prefer not to die
and in this case
B. choose to keep my legs if my clutch decides to shoot through the floor.
as opposed to what the NHRA says.
A. prefer not to die
and in this case
B. choose to keep my legs if my clutch decides to shoot through the floor.
as opposed to what the NHRA says.
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I don't know who carries their products, but I'm sure a sponsor here would. Just have to look around. I had no real big complaints about my McLeod (granted, they didn't supply metric bolts with the kit, and you have to grind the oil pan, but that's just modding
).
The only parts I didn't like about the blanket were that it didn't cover the rear of the engine or the front plate of the transmission - so it wasn't a "true" containment, like a front/rear plated bellhousing. It's also dependent on nylon straps to keep it in place, and getting those on and tight can take some time.
Lastly, a blanket will absorb oil. So if it gets soaked down by an oil leak, you have to throw it away or clean it really good. Oil plus fabric is a candle... once lit, it all pretty much goes up.
I'm not knocking blankets, they are better than nothing, but given that there are bellhousings on the market now, I'd run one of those first.
I don't know who carries their products, but I'm sure a sponsor here would. Just have to look around. I had no real big complaints about my McLeod (granted, they didn't supply metric bolts with the kit, and you have to grind the oil pan, but that's just modding
).The only parts I didn't like about the blanket were that it didn't cover the rear of the engine or the front plate of the transmission - so it wasn't a "true" containment, like a front/rear plated bellhousing. It's also dependent on nylon straps to keep it in place, and getting those on and tight can take some time.
Lastly, a blanket will absorb oil. So if it gets soaked down by an oil leak, you have to throw it away or clean it really good. Oil plus fabric is a candle... once lit, it all pretty much goes up.
I'm not knocking blankets, they are better than nothing, but given that there are bellhousings on the market now, I'd run one of those first.
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