Bbc blower rockers…

DRR Sportsman

posted

I’ve broke my last rocker…..
Tbs 250 blower 8-10 lbs with dart 355.

T&d? Jesel? Manton? Steel? Aluminum? Whatcha got?

Posts: 560 | Location: somewhere between been and never was | Registered: November 03, 2002

Mike Rietow

DRR Top Comp

posted

JESEL steel pretty damn nice. More money too.

Probably a hair better technology than T&D.

But I know of a guy going 4.50's with a ProCharger 3200 lbs Ultra Street radial tire car, runs T&D steel, zero failures.

Either or, I'd say. Manton too, just depends on budget.

We just did T&D steel on this tall deck aluminum BBC I'm doing for my neighbor, for around $2800, I think he paid with the more expensive stand system..

This message has been edited. Last edited by: Mike Rietow,

Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018

Ignored post by Mike Rietow posted

Mike Rietow

DRR Top Comp

posted

We have a complete set of JESEL aluminum shaft rockers for sale, Big Brodie BBC.

Most the rockers are new

. 1.7

Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018

Ignored post by Mike Rietow posted

Lenny5160

DRR S/Pro

posted

quote:
Originally posted by Mike Rietow:
JESEL steel pretty damn nice. More money too.

Probably a hair better technology than T&D.

But I know of a guy going 4.50's with a ProCharger 3200 lbs Ultra Street radial tire car, runs T&D steel, zero failures.

Either or, I'd say. Manton too, just depends on budget.

We just did T&D steel on this tall deck aluminum BBC I'm doing for my neighbor, for around $2800, I think he paid with the more expensive stand system..

That’s one hell of a tall deck aluminum BBC you have there!

Tony Leonard

Posts: 3261 | Location: Inver Grove Heights, MN | Registered: March 18, 2004

Ignored post by Lenny5160 posted

Footloose

DRR Pro

posted

Why won't a set of crower extreme duty work with a good stud girdle?

Posts: 1922 | Location: in a van down buy the river | Registered: September 07, 2002

Ignored post by Footloose posted

1320racer

DRR Elite

posted

THIS is the T&D stand system and rockers you want...

Posts: 13522 | Location: NJ | Registered: August 20, 2000

Ignored post by 1320racer posted

DRR Sportsman

posted

The t&d look like a nice setup. You guys have steel on the sbc and bbc in your posts?

Posts: 560 | Location: somewhere between been and never was | Registered: November 03, 2002

Ignored post by I Hate Dragsters posted

RPROGAS

DRR S/Pro

posted

My son Mike has a set of Crower shaft rockers on his 6.11 / 6.12 blown 522 BBC Top Dragster. Three years, zero problems with the Crowers'.

Bob

Posts: 3240 | Location: Lakeside, Ca | Registered: February 15, 2003

Ignored post by RPROGAS posted

1320racer

DRR Elite

posted

Yes, steel. 2nd season, over 300 passes and nothing has broken

Posts: 13522 | Location: NJ | Registered: August 20, 2000

Ignored post by 1320racer posted

"The Bender"

DRR S/Pro

posted

Personally Manton would be my choice. All those brands mentioned would work well though.....the cylinder pressure in a boosted engine puts an extreme load on the exhaust rockers because the exhaust valve is opening against that cylinder pressure which is higher than a NA engine.

272" Spitzer
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2017 Bradenton Heads Up Madness
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Posts: 3103 | Location: Yes | Registered: July 08, 2009

Ignored post by "The Bender" posted

DRR S/Pro

posted

quote:
Originally posted by I Hate Dragsters:
I’ve broke my last rocker…..
Tbs 250 blower 8-10 lbs with dart 355.

T&d? Jesel? Manton? Steel? Aluminum? Whatcha got?

I will ask since no one else did, what are you presently using that is breaking?

Posts: 2569 | Location: Moving back to the door side | Registered: April 30, 2010

Ignored post by Big Steve posted

Mike Rietow

DRR Top Comp

posted

quote:
Originally posted by I Hate Dragsters:
The t&d look like a nice setup. You guys have steel on the sbc and bbc in your posts?

Yes Sir, two different people. That's what I'm saying though, either brand is good. JESEL and Manton steel appear to be slightly higher technology than T&D.

Really depends what ya got, like Big Steve alluded to.

The sbc has 1400 open spring pressure (boosted).

The BBC has 950-1000 open spring pressure (n/a)

This message has been edited. Last edited by: Mike Rietow,

Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018

Ignored post by Mike Rietow posted

DRR Sportsman

posted

quote:
Originally posted by Big Steve:
quote:
Originally posted by I Hate Dragsters:
I’ve broke my last rocker…..
Tbs 250 blower 8-10 lbs with dart 355.

T&d? Jesel? Manton? Steel? Aluminum? Whatcha got?

I will ask since no one else did, what are you presently using that is breaking?

Crower shaft. While they’re lower run pieces they’re pretty old.

Posts: 560 | Location: somewhere between been and never was | Registered: November 03, 2002

Ignored post by I Hate Dragsters posted

DRR S/Pro

posted

Are you breaking intake or exhaust rockers? What is the cam lift?

Posts: 2569 | Location: Moving back to the door side | Registered: April 30, 2010

Ignored post by Big Steve posted

DRR Sportsman

posted

Exhaust. 0.476 lift

Posts: 560 | Location: somewhere between been and never was | Registered: November 03, 2002

Ignored post by I Hate Dragsters posted

DRR Sportsman

posted

With 1.7 rocker, 0.810 gross

Posts: 560 | Location: somewhere between been and never was | Registered: November 03, 2002

Ignored post by I Hate Dragsters posted

DRR S/Pro

posted

Yea I figured about 800 lift which is fine and all that is needed with a blower motor IMO. My blower cam is .799 on the exhaust, .810 intake, spring is 375 on the seat. I have 1.70 aluminum T&D and 1/2 inch Manton push rods on the exhaust side. 30 lbs boost and have never broke a rocker in 4 years that wasn't caused by something else. I had originally asked for steel Exh. rockers but I received aluminum and didnt want to wait 3 months so I put them in and hasn't been an issue for me.

At only 8-10lbs of boost you should be just fine T&D, Jesel or Crower shaft rockers, just stay away from the sportsman lines so you have the good stands and make sure your geometry is right, they say MAX 1 turn in on the adjuster nuts to obtain correct lash, mine are all less that 1 turn.

Posts: 2569 | Location: Moving back to the door side | Registered: April 30, 2010

Ignored post by Big Steve posted

The Bozman

DRR S/Pro

posted

quote:
Originally posted by Big Steve:
Yea I figured about 800 lift which is fine and all that is needed with a blower motor IMO. My blower cam is .799 on the exhaust, .810 intake, spring is 375 on the seat. I have 1.70 aluminum T&D and 1/2 inch Manton push rods on the exhaust side. 30 lbs boost and have never broke a rocker in 4 years that wasn't caused by something else. I had originally asked for steel Exh. rockers but I received aluminum and didnt want to wait 3 months so I put them in and hasn't been an issue for me.

At only 8-10lbs of boost you should be just fine T&D, Jesel or Crower shaft rockers, just stay away from the sportsman lines so you have the good stands and make sure your geometry is right, they say MAX 1 turn in on the adjuster nuts to obtain correct lash, mine are all less that 1 turn.

Help me understand what you mean 1 turn please.

Keeping the Socialists and NEO-LIBERALS at bay with FACTS one post at a time !!!

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Posts: 2498 | Location: Gilmer, Texas | Registered: June 25, 2002

Ignored post by The Bozman posted

DRR S/Pro

posted

quote:
Originally posted by The Bozman:
quote:
Originally posted by Big Steve:
Yea I figured about 800 lift which is fine and all that is needed with a blower motor IMO. My blower cam is .799 on the exhaust, .810 intake, spring is 375 on the seat. I have 1.70 aluminum T&D and 1/2 inch Manton push rods on the exhaust side. 30 lbs boost and have never broke a rocker in 4 years that wasn't caused by something else. I had originally asked for steel Exh. rockers but I received aluminum and didnt want to wait 3 months so I put them in and hasn't been an issue for me.

At only 8-10lbs of boost you should be just fine T&D, Jesel or Crower shaft rockers, just stay away from the sportsman lines so you have the good stands and make sure your geometry is right, they say MAX 1 turn in on the adjuster nuts to obtain correct lash, mine are all less that 1 turn.

Help me understand what you mean 1 turn please.

If you loosen the lock nut and turn the adjuster screw counterclockwise until it stops, you should not have to turn it back in more than 1 turn to obtain your lash set point. Reason is you want the adjuster screw inside the rocker body and not hanging out to prevent the adjusters from breaking. This comes directly from Sheldon at T&D and is also in the set up instructions. Hope this helps

Posts: 2569 | Location: Moving back to the door side | Registered: April 30, 2010

Ignored post by Big Steve posted

The Bozman

DRR S/Pro

posted

quote:
Originally posted by Big Steve:
quote:
Originally posted by The Bozman:
quote:
Originally posted by Big Steve:
Yea I figured about 800 lift which is fine and all that is needed with a blower motor IMO. My blower cam is .799 on the exhaust, .810 intake, spring is 375 on the seat. I have 1.70 aluminum T&D and 1/2 inch Manton push rods on the exhaust side. 30 lbs boost and have never broke a rocker in 4 years that wasn't caused by something else. I had originally asked for steel Exh. rockers but I received aluminum and didnt want to wait 3 months so I put them in and hasn't been an issue for me.

At only 8-10lbs of boost you should be just fine T&D, Jesel or Crower shaft rockers, just stay away from the sportsman lines so you have the good stands and make sure your geometry is right, they say MAX 1 turn in on the adjuster nuts to obtain correct lash, mine are all less that 1 turn.

Help me understand what you mean 1 turn please.

If you loosen the lock nut and turn the adjuster screw counterclockwise until it stops, you should not have to turn it back in more than 1 turn to obtain your lash set point. Reason is you want the adjuster screw inside the rocker body and not hanging out to prevent the adjusters from breaking. This comes directly from Sheldon at T&D and is also in the set up instructions. Hope this helps

That is what I figured but always willing to learn.

Keeping the Socialists and NEO-LIBERALS at bay with FACTS one post at a time !!!

Freedom isn't free !!! Thank a veteran, they will actually appreciate it.

Posts: 2498 | Location: Gilmer, Texas | Registered: June 25, 2002

Ignored post by The Bozman posted