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

 

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 *****.
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

 

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 *****.
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

 

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 *****.
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

 

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 *****.
> 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

 

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 *****.
> 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

 

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 *****.
> 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

 

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.***.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!

 

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.***.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!

 

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.***.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!