LS Head Gasket swap for more power..... - Yellow Bullet Forums
;

Go Back   Yellow Bullet Forums > Technical Section > Naturally Aspirated - Uratchko Racing Engines > New Products

Reply
 
Thread Tools Display Modes
Old 08-14-2019, 04:06 PM   #1
cstraub
Senior Member
Smoked another BBC
 
Join Date: Jan 2009
Posts: 3,644
Default LS Head Gasket swap for more power.....

LS Head Gasket replacement for MORE POWER!!!

Is there HP and RPM gain in head gaskets and cooling mods on your LS? Yes, and it’s been proven by Robert Yates Racing Engines in their continued development of the GM LS Spec engine for circle track application.

RYRE pulled a track tested engine out of a race car for endurance testing. The engine had the typical OEM type head gasket and cooling system that was run on the car. Testing also included using the radiator right out of the race car. During testing RYRE simulated the operating temps that the engines see, it was noticed in the overflow tank that the engine was off gassing out of the radiator cap. Some head scratching went on with the results of the engine and cooling system testing. Donnie Lewis, part of the RYRE development team and Art Leniti from Arts Radiators, started researching the LS engine program and GMs focus for the engine platform; emissions legal for the EPA and better fuel economy. Donnie’s and Art’s research revealed that GM achieved this through HEAT!! The higher the operating temperature is related to fuel operating temperature, the higher the fuel mileage and less emissions due to the heat that is needed for the catalytic converter to function efficiently. As more fuel is burned, there is more energy generated. In the confined space of a cylinder, this increases the pressure - and hence the temperature, which is converted, via the Otto cycle and the engine design, into mechanical energy to operate the engine. The energy realized is related to the temperature difference - the higher the combustion temperature and the lower the discharge temperature - the higher the efficiency of the engine and the improved fuel economy. In addition, to meet EPA efficiency and emission regs, OEM manufactures use 200 or even 210 Degree thermostats.

We all know running an engine cooler will produce more HP, but sacrifices fuel economy. RYRE needed performance and reliability for the spec engine. Inspection of the head gaskets revealed that GM limited the water around the combustion chamber to maintain the higher temperature. Additional evidence of an imbalance in cooling between the right and left head was evident because of the factory plumbing. RYRE modified the plumbing to consist of equal length lines with a T in the middle running to an expansion tank just under the radiator cap. This allows the gases to leave the heads equally.

RYRE pulled the stock gaskets off the test engine and punched 7 missing holes in the head gaskets. Being that this engine was a spec engine, power output and rpm range of power was well documented. These engines when reaching temp had always “laid over” on the straightaways and just quit pulling. RYRE’s cooling system modifications with parts from Art’s Radiators by RYRE were quite amazing. A simple few holes and some plumbing changes to add additional cooling and release off gases allowed the engine to continue pulling through the entire rpm range! All of this was from modification to the cooling system. Additional track testing showed that the engines ran cooler on the track.
At the end of the day, Donnie Lewis of RYRE used simple physics to convert an EPA emissions engine into a 600HP NA race engine that runs to 7800 rpm!!!!

Straub Tech’s relationship with RYRE has given us the opportunity to take this tech and turn it into a product for the performance LS customer. Available in small bore and large bore, the Straub Tech MLS gasket features the additional cooling holes that allow for more HP and higher rpm!!

346-4031P LS Small Bore Gasket for 4.8, 5.3, and 5.7 For Off Road Use Only. $59.95 Each.
346-4411P LS Large Bore Gasket for 6.0 and 6.2 For Off Road Use Only. $59.95 Each.

Plumbing kits for the “off gassing” are in development now and should be released in the next few months. For now, we advise you to equalize the lengths left to right with a T in the center. Plumb the center port of the T to the system you are using the vent the off gassing. If using the radiator, your best to drill and put fittings closest to the radiator cap. If your using an expansion tank, mount the tank at the highest point of the cooling system

346-4444 Complete plumbing kit to vent heads to radiator This includes 6' of -4 Black Braided Hose. Will need to drill and tap radiator for 2 1/8" NPT fittings. Kit is complete with all fittings needed $159.99
__________________
Chris Straub
Straub Technologies
423 391 7774
[email protected]
www.straubtechnologies.com
www.distributorgears.com
cstraub is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-17-2019, 03:37 AM   #2
DarkMatter
Member
Pullin gears
 
DarkMatter's Avatar
 
Join Date: Feb 2017
Posts: 861
Default Re: LS Head Gasket swap for more power.....

Nothing on gasket thickness...


Dry.
__________________
Quote:
Forgiveness is between you/your engine and God. It's my job to arrange the meeting. Nobody could'a did that like you, man, Congratulations. Never cease to amaze me, it's just amazing. It's amazing how I tell you, for a brilliant motherfucker you plum dumb sometimes
Quote:
Jobs are for lazy people who don’t want to invest in themselves. As it's not considered work doing what you love.
Project Fentanyl 408
DarkMatter is offline   Reply With Quote
Old 08-19-2019, 11:28 AM   #3
cstraub
Senior Member
Smoked another BBC
 
Join Date: Jan 2009
Posts: 3,644
Default Re: LS Head Gasket swap for more power.....

Quote:
Originally Posted by DarkMatter View Post
Nothing on gasket thickness...


Dry.
.050" Thick on gaskets. Also a fluid engineer calculated what hole diameter was needed to provide the correct amount of coolant to the heads.
__________________
Chris Straub
Straub Technologies
423 391 7774
[email protected]
www.straubtechnologies.com
www.distributorgears.com
cstraub is offline   Reply With Quote
Old 08-31-2019, 10:21 PM   #4
tblentrprz
Junior Member
Spooled up
 
Join Date: Jan 2015
Posts: 106
Default Re: LS Head Gasket swap for more power.....

How many layers?
tblentrprz is offline   Reply With Quote
Old 09-01-2019, 08:33 PM   #5
Collinsautomotive
Senior Member
Smoked Another SBC
 
Join Date: Nov 2005
Posts: 49,236
Default Re: LS Head Gasket swap for more power.....

I am freshening my friends turbo car this winter, get me more info please.
__________________
Henry Ford, on the stock market

Quote:
"As betting at the race ring adds neither strength nor speed to the horse, so the exchange of shares in the stock market adds no capital to business, no increase in the production and no purchasing power to the market."
Collinsautomotive is offline   Reply With Quote
Old 09-14-2019, 10:18 AM   #6
3pedals
Gigity
Smoked another BBC
 
3pedals's Avatar
 
Join Date: Oct 2010
Location: Canada eh
Posts: 3,130
Default Re: LS Head Gasket swap for more power.....

Is this any different than what Greg Good has been doing for years?
3pedals is offline   Reply With Quote
Old 09-17-2019, 12:29 AM   #7
DarkMatter
Member
Pullin gears
 
DarkMatter's Avatar
 
Join Date: Feb 2017
Posts: 861
Default Re: LS Head Gasket swap for more power.....

Got $100 says No and U can get GG's with .042 thickness along with other sizing.
__________________
Quote:
Forgiveness is between you/your engine and God. It's my job to arrange the meeting. Nobody could'a did that like you, man, Congratulations. Never cease to amaze me, it's just amazing. It's amazing how I tell you, for a brilliant motherfucker you plum dumb sometimes
Quote:
Jobs are for lazy people who don’t want to invest in themselves. As it's not considered work doing what you love.
Project Fentanyl 408
DarkMatter is offline   Reply With Quote
Old 09-17-2019, 04:11 PM   #8
cstraub
Senior Member
Smoked another BBC
 
Join Date: Jan 2009
Posts: 3,644
Default Re: LS Head Gasket swap for more power.....

Quote:
Originally Posted by 3pedals View Post
Is this any different than what Greg Good has been doing for years?
This started back in the 70's with the SBC. The LS when designed just had to meet much more stringent rules of EPA and DOT. RYRE started using the design in 2013. Greg and I have already talked as my die can punch any gasket that has std LS dowel hole location.
__________________
Chris Straub
Straub Technologies
423 391 7774
[email protected]
www.straubtechnologies.com
www.distributorgears.com
cstraub is offline   Reply With Quote
Old 09-17-2019, 04:12 PM   #9
cstraub
Senior Member
Smoked another BBC
 
Join Date: Jan 2009
Posts: 3,644
Default Re: LS Head Gasket swap for more power.....

Quote:
Originally Posted by DarkMatter View Post
Got $100 says No and U can get GG's with .042 thickness along with other sizing.

My die will punch any gasket. Greg and I have already talked.
__________________
Chris Straub
Straub Technologies
423 391 7774
[email protected]
www.straubtechnologies.com
www.distributorgears.com
cstraub is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-17-2019, 06:28 PM   #10
Farthole
Junior Member
Spooled up
 
Join Date: Feb 2017
Posts: 193
Default Re: LS Head Gasket swap for more power.....

Kurt urban was doing that 7-8 yrs ago.
Farthole is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -4. The time now is 12:50 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 0%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Yellow Bullet LLC
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.