More New Scrambler Details
#211
Guest
Posts: n/a
Re: More New Scrambler Details
Goat Crapp did pass the time by typing:
> wow you run a non intercooled setup? how much boost aqre you running?
5.5psi stock, 11.5psi with race fuel or at altitudes above 5000ft with
92 octane. Oklahoma is too low to run 11.5 without water injection and
Bilouxi (keeser afb) is almost too low to run at 5.5.
> thats
> a nice compression for f/i but i would still be nervous without any sort of
> intercooling.
Roots blowers don't heat the air near as much as vane types do.
Take a feel of almost any vacuum cleaner exhaust. That heat is mostly
due to the inefficiency of the impeller.
> if its space constraints, you can run a small water to air setup.. costs will
> be around 200 if you can weld aluminum (for the casing) youself.. with a 2
> gallon setup, a small 6x8x2" core should be sufficient since as you say, your
> particular s/c isnt heating up the air too much (any idea exactl;y how much?
5.5psi compression of air at sea level increases temp by... (where is my
thermodynamics book?) ..search.. ..search..
Ok.. that would be about 150ºF increase for ideal where a vane type
with about 65% efficency would be 259ºF increase.
There just isn't room for an intercooler with my setup. Water injection is
the only viable alternative. I am thinking about bringing some cool air
back into the engine bay or installing the hood vents from the 5.9.
> i know turbo's can add 70-100 degrees to the intake charge depending on boost,
Much more than that, try almost 200ºF without intercooling.
> but a properly intercooled air-to-air setup will return that back to within
> 10* of ambient. a w/a is good for low boost since its more consistent, less
> dependant on vehicle motion... but wont cool it off AS much as a large a/a.
> *(unless you run a water/aclch mixture, and pre-cool it, with an ice chamber,
> etc)
Yep.. only problem is space.
Pics are on my site.
This is the casting that adapts the blower.
http://members.***.net/wilsond/sc-cast.jpg
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> wow you run a non intercooled setup? how much boost aqre you running?
5.5psi stock, 11.5psi with race fuel or at altitudes above 5000ft with
92 octane. Oklahoma is too low to run 11.5 without water injection and
Bilouxi (keeser afb) is almost too low to run at 5.5.
> thats
> a nice compression for f/i but i would still be nervous without any sort of
> intercooling.
Roots blowers don't heat the air near as much as vane types do.
Take a feel of almost any vacuum cleaner exhaust. That heat is mostly
due to the inefficiency of the impeller.
> if its space constraints, you can run a small water to air setup.. costs will
> be around 200 if you can weld aluminum (for the casing) youself.. with a 2
> gallon setup, a small 6x8x2" core should be sufficient since as you say, your
> particular s/c isnt heating up the air too much (any idea exactl;y how much?
5.5psi compression of air at sea level increases temp by... (where is my
thermodynamics book?) ..search.. ..search..
Ok.. that would be about 150ºF increase for ideal where a vane type
with about 65% efficency would be 259ºF increase.
There just isn't room for an intercooler with my setup. Water injection is
the only viable alternative. I am thinking about bringing some cool air
back into the engine bay or installing the hood vents from the 5.9.
> i know turbo's can add 70-100 degrees to the intake charge depending on boost,
Much more than that, try almost 200ºF without intercooling.
> but a properly intercooled air-to-air setup will return that back to within
> 10* of ambient. a w/a is good for low boost since its more consistent, less
> dependant on vehicle motion... but wont cool it off AS much as a large a/a.
> *(unless you run a water/aclch mixture, and pre-cool it, with an ice chamber,
> etc)
Yep.. only problem is space.
Pics are on my site.
This is the casting that adapts the blower.
http://members.***.net/wilsond/sc-cast.jpg
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
#212
Guest
Posts: n/a
Re: More New Scrambler Details
Goat Crapp did pass the time by typing:
> wow you run a non intercooled setup? how much boost aqre you running?
5.5psi stock, 11.5psi with race fuel or at altitudes above 5000ft with
92 octane. Oklahoma is too low to run 11.5 without water injection and
Bilouxi (keeser afb) is almost too low to run at 5.5.
> thats
> a nice compression for f/i but i would still be nervous without any sort of
> intercooling.
Roots blowers don't heat the air near as much as vane types do.
Take a feel of almost any vacuum cleaner exhaust. That heat is mostly
due to the inefficiency of the impeller.
> if its space constraints, you can run a small water to air setup.. costs will
> be around 200 if you can weld aluminum (for the casing) youself.. with a 2
> gallon setup, a small 6x8x2" core should be sufficient since as you say, your
> particular s/c isnt heating up the air too much (any idea exactl;y how much?
5.5psi compression of air at sea level increases temp by... (where is my
thermodynamics book?) ..search.. ..search..
Ok.. that would be about 150ºF increase for ideal where a vane type
with about 65% efficency would be 259ºF increase.
There just isn't room for an intercooler with my setup. Water injection is
the only viable alternative. I am thinking about bringing some cool air
back into the engine bay or installing the hood vents from the 5.9.
> i know turbo's can add 70-100 degrees to the intake charge depending on boost,
Much more than that, try almost 200ºF without intercooling.
> but a properly intercooled air-to-air setup will return that back to within
> 10* of ambient. a w/a is good for low boost since its more consistent, less
> dependant on vehicle motion... but wont cool it off AS much as a large a/a.
> *(unless you run a water/aclch mixture, and pre-cool it, with an ice chamber,
> etc)
Yep.. only problem is space.
Pics are on my site.
This is the casting that adapts the blower.
http://members.***.net/wilsond/sc-cast.jpg
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> wow you run a non intercooled setup? how much boost aqre you running?
5.5psi stock, 11.5psi with race fuel or at altitudes above 5000ft with
92 octane. Oklahoma is too low to run 11.5 without water injection and
Bilouxi (keeser afb) is almost too low to run at 5.5.
> thats
> a nice compression for f/i but i would still be nervous without any sort of
> intercooling.
Roots blowers don't heat the air near as much as vane types do.
Take a feel of almost any vacuum cleaner exhaust. That heat is mostly
due to the inefficiency of the impeller.
> if its space constraints, you can run a small water to air setup.. costs will
> be around 200 if you can weld aluminum (for the casing) youself.. with a 2
> gallon setup, a small 6x8x2" core should be sufficient since as you say, your
> particular s/c isnt heating up the air too much (any idea exactl;y how much?
5.5psi compression of air at sea level increases temp by... (where is my
thermodynamics book?) ..search.. ..search..
Ok.. that would be about 150ºF increase for ideal where a vane type
with about 65% efficency would be 259ºF increase.
There just isn't room for an intercooler with my setup. Water injection is
the only viable alternative. I am thinking about bringing some cool air
back into the engine bay or installing the hood vents from the 5.9.
> i know turbo's can add 70-100 degrees to the intake charge depending on boost,
Much more than that, try almost 200ºF without intercooling.
> but a properly intercooled air-to-air setup will return that back to within
> 10* of ambient. a w/a is good for low boost since its more consistent, less
> dependant on vehicle motion... but wont cool it off AS much as a large a/a.
> *(unless you run a water/aclch mixture, and pre-cool it, with an ice chamber,
> etc)
Yep.. only problem is space.
Pics are on my site.
This is the casting that adapts the blower.
http://members.***.net/wilsond/sc-cast.jpg
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
#213
Guest
Posts: n/a
Re: More New Scrambler Details
Yup, as in an atmosphere condition we Southern California's call a
Santa Ana. So, again I ask, do you know anyone running a pump such as
671 with a intercooler?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
"Fred W." wrote:
>
> Umm, actually he is. When you compress the air it becomes hotter.
> Thermodynamics and all that stuff...
>
> -Fred
Santa Ana. So, again I ask, do you know anyone running a pump such as
671 with a intercooler?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
"Fred W." wrote:
>
> Umm, actually he is. When you compress the air it becomes hotter.
> Thermodynamics and all that stuff...
>
> -Fred
#214
Guest
Posts: n/a
Re: More New Scrambler Details
Yup, as in an atmosphere condition we Southern California's call a
Santa Ana. So, again I ask, do you know anyone running a pump such as
671 with a intercooler?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
"Fred W." wrote:
>
> Umm, actually he is. When you compress the air it becomes hotter.
> Thermodynamics and all that stuff...
>
> -Fred
Santa Ana. So, again I ask, do you know anyone running a pump such as
671 with a intercooler?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
"Fred W." wrote:
>
> Umm, actually he is. When you compress the air it becomes hotter.
> Thermodynamics and all that stuff...
>
> -Fred
#215
Guest
Posts: n/a
Re: More New Scrambler Details
Yup, as in an atmosphere condition we Southern California's call a
Santa Ana. So, again I ask, do you know anyone running a pump such as
671 with a intercooler?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
"Fred W." wrote:
>
> Umm, actually he is. When you compress the air it becomes hotter.
> Thermodynamics and all that stuff...
>
> -Fred
Santa Ana. So, again I ask, do you know anyone running a pump such as
671 with a intercooler?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
"Fred W." wrote:
>
> Umm, actually he is. When you compress the air it becomes hotter.
> Thermodynamics and all that stuff...
>
> -Fred
#216
Guest
Posts: n/a
Re: More New Scrambler Details
Twelve cylinder.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
#217
Guest
Posts: n/a
Re: More New Scrambler Details
Twelve cylinder.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
#218
Guest
Posts: n/a
Re: More New Scrambler Details
Twelve cylinder.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
#219
Guest
Posts: n/a
Re: More New Scrambler Details
what is ?
Dave Milne, Scotland
'99 TJ 4.0 Sahara
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F871FDB.BF93A4E1@***.net...
: Twelve cylinder.
: God Bless America, ßill O|||||||O
: mailto:-------------------- http://www.----------.com/
Dave Milne, Scotland
'99 TJ 4.0 Sahara
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F871FDB.BF93A4E1@***.net...
: Twelve cylinder.
: God Bless America, ßill O|||||||O
: mailto:-------------------- http://www.----------.com/
#220
Guest
Posts: n/a
Re: More New Scrambler Details
what is ?
Dave Milne, Scotland
'99 TJ 4.0 Sahara
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F871FDB.BF93A4E1@***.net...
: Twelve cylinder.
: God Bless America, ßill O|||||||O
: mailto:-------------------- http://www.----------.com/
Dave Milne, Scotland
'99 TJ 4.0 Sahara
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F871FDB.BF93A4E1@***.net...
: Twelve cylinder.
: God Bless America, ßill O|||||||O
: mailto:-------------------- http://www.----------.com/