Block built for nitrous able to run boost?
Thread Starter
Pro
Joined: Feb 2010
Posts: 618
Likes: 4
From: Lexington SC
Block built for nitrous able to run boost?
I have a 383 Stroker built and gapped for a 200 shot. Is there anyway possible I can run a SC on it? If not what would be needed ie piston swap and rings? Or should I just yank the block and sell and buy one built for boost?
Le Mans Master
Joined: Jul 2010
Posts: 6,008
Likes: 723
If they opened up top ring then no problem. If they didn't you can still run boost but very low 7-8psi max and add a meth kit to cool down chamber.
Safety Car
Joined: Aug 2011
Posts: 4,447
Likes: 409
From: Portland OR
Increasing the top ring gap for spray would be no different for boost.
So you would be fine there.
Spray or blower, both are boost.
The concern will be compression ratio.
Do you know what it is set for? Boost (blower) engines usually limit it to 10.5:1 or less.
That can be swizzled with heads.
Ron
So you would be fine there.
Spray or blower, both are boost.
The concern will be compression ratio.
Do you know what it is set for? Boost (blower) engines usually limit it to 10.5:1 or less.
That can be swizzled with heads.
Ron
Thread Starter
Pro
Joined: Feb 2010
Posts: 618
Likes: 4
From: Lexington SC
Increasing the top ring gap for spray would be no different for boost.
So you would be fine there.
Spray or blower, both are boost.
The concern will be compression ratio.
Do you know what it is set for? Boost (blower) engines usually limit it to 10.5:1 or less.
That can be swizzled with heads.
Ron
So you would be fine there.
Spray or blower, both are boost.
The concern will be compression ratio.
Do you know what it is set for? Boost (blower) engines usually limit it to 10.5:1 or less.
That can be swizzled with heads.
Ron
Last edited by Leukic; Jul 24, 2013 at 01:53 PM.
Safety Car
Joined: Aug 2011
Posts: 4,447
Likes: 409
From: Portland OR
Assuming stock piston, .050" head gaskets and 59cc heads shows 11.5:1
Change just the heads to 65cc and you are at approx 10.5:1
http://www.kb-silvolite.com/calc.php?action=comp
I think 317 heads will get you lower still.
Ron
Thread Starter
Pro
Joined: Feb 2010
Posts: 618
Likes: 4
From: Lexington SC
Here is a good CR calculator for you to play with.
Assuming stock piston, .050" head gaskets and 59cc heads shows 11.5:1
Change just the heads to 65cc and you are at approx 10.5:1
http://www.kb-silvolite.com/calc.php?action=comp
I think 317 heads will get you lower still.
Ron
Assuming stock piston, .050" head gaskets and 59cc heads shows 11.5:1
Change just the heads to 65cc and you are at approx 10.5:1
http://www.kb-silvolite.com/calc.php?action=comp
I think 317 heads will get you lower still.
Ron
Ill check into that Ron. Thanks for the link And the 317 heads are what 72 cc? That would drop the compression way down.
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