Getting power from a pentastar
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JK Enthusiast
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Getting power from a pentastar
Ok so we've all heard about hemi swaps and even LS swaps so the other day I came up with what I thaught was a great idea. Why has no one bored and stroked the pentestar. Seems like more power for the money compared to a 15k hemi swap. Any specific reason no one doing this. Ecu maybe?
#3
JK Super Freak
These guys make a ported throttle body and intake manifold but that is about all that I have found. Modern Muscle Performance
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Only thing that is available for us - programmers - intakes - exhaust...Have them all...Noticeable difference
with the Diablosport programmer...haven said that gear swap is the next thing...It's not adding horsepower
but refiguring the RPM's - torque lines - shift points ...basically it worked for me...I have a 12 JKU with 35"s
and a mild lift - bumpers...get's me along just fine , i keep up in city - on highway no problem...
with the Diablosport programmer...haven said that gear swap is the next thing...It's not adding horsepower
but refiguring the RPM's - torque lines - shift points ...basically it worked for me...I have a 12 JKU with 35"s
and a mild lift - bumpers...get's me along just fine , i keep up in city - on highway no problem...
#6
JK Super Freak
I don't think that there is much power to be pulled from these engines without boost. Just based on the research that I have done even if someone had a ported intake, ported throttle body, cai, exhaust and a tuner I think that they would be lucky to see around the 30 HP mark. If I had money to spend I certainly think that there are better places to use it.
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#9
JK Enthusiast
Ok so we've all heard about hemi swaps and even LS swaps so the other day I came up with what I thaught was a great idea. Why has no one bored and stroked the pentestar. Seems like more power for the money compared to a 15k hemi swap. Any specific reason no one doing this. Ecu maybe?
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Forced induction will be the way to go in my opinion with the 3.8/3.6.
My working on vehicles started with v6 mustangs. I have built many different setups on the 3.8. N/A, Nitrous, supercharger, turbocharger. The setup that produced the most power was always the turbo. The 3.8 mustangs love turbo's. Here is a video of a basically stock motor 3.8 mustang that a buddy and I built with a twin turbo kit.
http://www.youtube.com/watch?v=6aqT6Opxyt0
When you start getting into ported intake manifolds with a stock engine the gains will be minimal. Those type of mods see better gains when accompanied with high lift cams, ported heads, headers, and other mods that make the engine flow better.
Once I stepped up to an 04 GTO with a 5.7L LS1 from the v6 mustangs, I went for an N/A setup. Simply because with the displacement of the motor, by putting a new cam/ported heads/manifold/long tube headers, the motor woke up and produced some nice power.
http://www.youtube.com/watch?v=q-76pkOUcpM From my experience, I would save for forced induction. Once this motor is worn out, I want to drop an LS series into the Jeep with a big cam and a nice set of heads anyways.
Also, to bore and stroke a motor will cost more than $3k for just parts. I would guess the hp gain in our motors would be around 40rwhp +/- a few. There is much more to gain from a turbo/supercharger for almost the same money.
My working on vehicles started with v6 mustangs. I have built many different setups on the 3.8. N/A, Nitrous, supercharger, turbocharger. The setup that produced the most power was always the turbo. The 3.8 mustangs love turbo's. Here is a video of a basically stock motor 3.8 mustang that a buddy and I built with a twin turbo kit.
http://www.youtube.com/watch?v=6aqT6Opxyt0
When you start getting into ported intake manifolds with a stock engine the gains will be minimal. Those type of mods see better gains when accompanied with high lift cams, ported heads, headers, and other mods that make the engine flow better.
Once I stepped up to an 04 GTO with a 5.7L LS1 from the v6 mustangs, I went for an N/A setup. Simply because with the displacement of the motor, by putting a new cam/ported heads/manifold/long tube headers, the motor woke up and produced some nice power.
http://www.youtube.com/watch?v=q-76pkOUcpM From my experience, I would save for forced induction. Once this motor is worn out, I want to drop an LS series into the Jeep with a big cam and a nice set of heads anyways.
Also, to bore and stroke a motor will cost more than $3k for just parts. I would guess the hp gain in our motors would be around 40rwhp +/- a few. There is much more to gain from a turbo/supercharger for almost the same money.
Last edited by ucfjeep; 05-29-2013 at 08:57 AM.