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Post  bruno March 29th 2021, 11:50 am

what is my boost limit on a no o-ringed block/heads, dart eagle block and a set of 205cc twisted wedge cylinder heads ? and what is the best head gasket for the application ?

car is usually at 22-24lbs of boost , but on this pass we had a spike around 30lbs

Boost question on a SBF Resize14

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Post  pmrphil March 29th 2021, 6:02 pm

I usually install the Felpro 1006 "locwire" gaskets on boosted/nitrous combos. It's only a .010 groove in the head and I have 1 customer with 2 seasons at 26-28 lbs. and no issues. It's either that or Cometics, but I've seen seepage with them, and also distortion like you already have.

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Post  rmcomprandy March 29th 2021, 6:42 pm

pmrphil wrote:I usually install the Felpro 1006 "locwire" gaskets on boosted/nitrous combos. It's only a .010 groove in the head and I have 1 customer with 2 seasons at 26-28 lbs. and no issues. It's either that or Cometics, but I've seen seepage with them, and also distortion like you already have.

With a Dart block, the Cometics will usually work ...
with a production block, nothing works for very long without O-ringing the block.

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Post  wickettoby1 March 29th 2021, 9:00 pm

What fuel?

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Post  bruno March 29th 2021, 9:21 pm

wickettoby1 wrote:What fuel?

e85

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Post  wickettoby1 March 30th 2021, 8:59 am

Do you know why the boost spiked higher than normal?
Are they just the standard ARP SBF studs? You may want to ask them about a stud upgrade to a 625 series material for more clamp load seens how you can’t add more fasteners.

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Post  wickettoby1 March 30th 2021, 9:01 am

Do you know why the boost spiked higher than normal?
Are they just the standard ARP SBF studs? You may want to ask them about a stud upgrade to a 625 series material for more clamp load seens how you can’t add more fasteners.

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Post  bruno March 30th 2021, 11:03 am

Dont know, waste gate is not sticking , going to have the tuner go thru it and check things out and check out the boost controller

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Post  bruno April 22nd 2021, 3:41 pm

rebuild in progress , old bearings looked good just upgrading to the coated ones, cometic gaskets , Boost question on a SBF Resize17
Boost question on a SBF Resize15
Boost question on a SBF Resize16

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Post  rmcomprandy April 22nd 2021, 6:51 pm

bruno wrote:what is my boost limit on a no o-ringed block/heads, dart eagle block and a set of 205cc twisted wedge cylinder heads ? and what is the best head gasket for the application ?

car is usually at 22-24lbs of boost , but on this pass we had a spike around 30lbs

Boost question on a SBF Resize14

I can't tell you the boost limit but, without "O" ringing, the MLS gaskets will work the best.

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Post  bruno April 25th 2021, 8:40 pm

rmcomprandy wrote:
bruno wrote:what is my boost limit on a no o-ringed block/heads, dart eagle block and a set of 205cc twisted wedge cylinder heads ? and what is the best head gasket for the application ?

car is usually at 22-24lbs of boost , but on this pass we had a spike around 30lbs

Boost question on a SBF Resize14

I can't tell you the boost limit but, without "O" ringing, the MLS gaskets will work the best.

yes sir , we are gonna give it a try ....

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thanks to all my sponsors :

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www.Induction-Solutions.com
www.bfevansraceparts.com
www.ultimateconverter.com
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Post  rmcomprandy April 26th 2021, 11:04 am

bruno wrote:

I can't tell you the boost limit but, without "O" ringing, the MLS gaskets will work the best.

yes sir , we are gonna give it a try .... [/quote]

Also, after a couple heat cycles, take the rockers off and re-torque the heads one bolt or stud at a time. Back one off and re-torque it ... one at a time.

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Post  bruno April 26th 2021, 5:49 pm

rmcomprandy wrote:
bruno wrote:

I can't tell you the boost limit but, without "O" ringing, the MLS gaskets will work the best.

yes sir , we are gonna give it a try ....

Also, after a couple heat cycles, take the rockers off and re-torque the heads one bolt or stud at a time. Back one off and re-torque it ... one at a time.[/quote]

yes sir will do !

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