Detuned 4.0L ?????
 

Hello Group
After reading from one of Bills links I came across
a statement that the 4.0L engine is detuned for the Wrangler
http://www.omencity.com/thetedster/j.../earlyjeep.htm
Is this true?
Is this also true for a 01TJ?
Thanks in advance
Regards
Frank

Re: Detuned 4.0L ?????
 

Hi Frank,
I don't think the vortex in the air box will make a nickel's worth
of difference, just screw up the engine positive crankcase ventilation
if you take it out:
http://web.archive.org/web/200306201.../jeepmods.html
Of course, all engines are radically detuned for the sixties
muscles car's ten to one compression, and over three hundred degree cam
duration, to comply with the SMOG nazis.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

FrankW wrote:
>
> Hello Group
> After reading from one of Bills links I came across
> a statement that the 4.0L engine is detuned for the Wrangler
> http://www.omencity.com/thetedster/j.../earlyjeep.htm
> Is this true?
> Is this also true for a 01TJ?
> Thanks in advance
> Regards
> Frank

Re: Detuned 4.0L ?????
 

Hi Frank,
I don't think the vortex in the air box will make a nickel's worth
of difference, just screw up the engine positive crankcase ventilation
if you take it out:
http://web.archive.org/web/200306201.../jeepmods.html
Of course, all engines are radically detuned for the sixties
muscles car's ten to one compression, and over three hundred degree cam
duration, to comply with the SMOG nazis.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

FrankW wrote:
>
> Hello Group
> After reading from one of Bills links I came across
> a statement that the 4.0L engine is detuned for the Wrangler
> http://www.omencity.com/thetedster/j.../earlyjeep.htm
> Is this true?
> Is this also true for a 01TJ?
> Thanks in advance
> Regards
> Frank

Re: Detuned 4.0L ?????
 

Hi Frank,
I don't think the vortex in the air box will make a nickel's worth
of difference, just screw up the engine positive crankcase ventilation
if you take it out:
http://web.archive.org/web/200306201.../jeepmods.html
Of course, all engines are radically detuned for the sixties
muscles car's ten to one compression, and over three hundred degree cam
duration, to comply with the SMOG nazis.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

FrankW wrote:
>
> Hello Group
> After reading from one of Bills links I came across
> a statement that the 4.0L engine is detuned for the Wrangler
> http://www.omencity.com/thetedster/j.../earlyjeep.htm
> Is this true?
> Is this also true for a 01TJ?
> Thanks in advance
> Regards
> Frank

Re: Detuned 4.0L ?????
 

XJs have them too. This guy claims .5-.75 mpg increase when removed:

http://www.go.jeep-xj.info/HowtoSilencer.htm

Steve
http://xjeep.dyndns.org


L.W.(ßill) ------ III wrote:
> Hi Frank,
> I don't think the vortex in the air box will make a nickel's worth
> of difference, just screw up the engine positive crankcase ventilation
> if you take it out:
> http://web.archive.org/web/200306201.../jeepmods.html
> Of course, all engines are radically detuned for the sixties
> muscles car's ten to one compression, and over three hundred degree cam
> duration, to comply with the SMOG nazis.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> FrankW wrote:
>
>>Hello Group
>>After reading from one of Bills links I came across
>>a statement that the 4.0L engine is detuned for the Wrangler
>>http://www.omencity.com/thetedster/j.../earlyjeep.htm
>>Is this true?
>>Is this also true for a 01TJ?
>>Thanks in advance
>>Regards
>>Frank

Re: Detuned 4.0L ?????
 

XJs have them too. This guy claims .5-.75 mpg increase when removed:

http://www.go.jeep-xj.info/HowtoSilencer.htm

Steve
http://xjeep.dyndns.org


L.W.(ßill) ------ III wrote:
> Hi Frank,
> I don't think the vortex in the air box will make a nickel's worth
> of difference, just screw up the engine positive crankcase ventilation
> if you take it out:
> http://web.archive.org/web/200306201.../jeepmods.html
> Of course, all engines are radically detuned for the sixties
> muscles car's ten to one compression, and over three hundred degree cam
> duration, to comply with the SMOG nazis.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> FrankW wrote:
>
>>Hello Group
>>After reading from one of Bills links I came across
>>a statement that the 4.0L engine is detuned for the Wrangler
>>http://www.omencity.com/thetedster/j.../earlyjeep.htm
>>Is this true?
>>Is this also true for a 01TJ?
>>Thanks in advance
>>Regards
>>Frank

Re: Detuned 4.0L ?????
 

XJs have them too. This guy claims .5-.75 mpg increase when removed:

http://www.go.jeep-xj.info/HowtoSilencer.htm

Steve
http://xjeep.dyndns.org


L.W.(ßill) ------ III wrote:
> Hi Frank,
> I don't think the vortex in the air box will make a nickel's worth
> of difference, just screw up the engine positive crankcase ventilation
> if you take it out:
> http://web.archive.org/web/200306201.../jeepmods.html
> Of course, all engines are radically detuned for the sixties
> muscles car's ten to one compression, and over three hundred degree cam
> duration, to comply with the SMOG nazis.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> FrankW wrote:
>
>>Hello Group
>>After reading from one of Bills links I came across
>>a statement that the 4.0L engine is detuned for the Wrangler
>>http://www.omencity.com/thetedster/j.../earlyjeep.htm
>>Is this true?
>>Is this also true for a 01TJ?
>>Thanks in advance
>>Regards
>>Frank

Re: Detuned 4.0L ?????
 

FrankW did pass the time by typing:
> Hello Group
> After reading from one of Bills links I came across
> a statement that the 4.0L engine is detuned for the Wrangler
> http://www.omencity.com/thetedster/j.../earlyjeep.htm
> Is this true?

Nope, it's bull. My ZJ has the same "restrictor plate"
which actually is a venturi used to provide vacuum to the
evaporative canister. Without that doodad your canister
will cement up and performance will really go down.

> Is this also true for a 01TJ?

Nope, it's still bull, just a different texture.

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!

Re: Detuned 4.0L ?????
 

FrankW did pass the time by typing:
> Hello Group
> After reading from one of Bills links I came across
> a statement that the 4.0L engine is detuned for the Wrangler
> http://www.omencity.com/thetedster/j.../earlyjeep.htm
> Is this true?

Nope, it's bull. My ZJ has the same "restrictor plate"
which actually is a venturi used to provide vacuum to the
evaporative canister. Without that doodad your canister
will cement up and performance will really go down.

> Is this also true for a 01TJ?

Nope, it's still bull, just a different texture.

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!

Re: Detuned 4.0L ?????
 

FrankW did pass the time by typing:
> Hello Group
> After reading from one of Bills links I came across
> a statement that the 4.0L engine is detuned for the Wrangler
> http://www.omencity.com/thetedster/j.../earlyjeep.htm
> Is this true?

Nope, it's bull. My ZJ has the same "restrictor plate"
which actually is a venturi used to provide vacuum to the
evaporative canister. Without that doodad your canister
will cement up and performance will really go down.

> Is this also true for a 01TJ?

Nope, it's still bull, just a different texture.

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!