Fastman Throttle Body for 3.7L & 4.7L - Jeep Commander Forums: Jeep Commander Forum
Intakes Questions or advice about intakes? This is the place...

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post #1 of 17 (permalink) Old 10-08-2009, 12:51 PM Thread Starter
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Fastman Throttle Body for 3.7L & 4.7L

Whats up guys. I came across this website www.thefastman.com and asked the guy if he has a TB that fits my 3.7L. He does have them that fit and he says that I can expect to get a way better throttle response and noticable power gains. Any feedback would be awesome!
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post #2 of 17 (permalink) Old 10-08-2009, 04:44 PM
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Very interesting indeed! Looks like $180 plus you send them your old one (core). I wonder how much performance increase you could expect. If it was in the range of 15-20 HP more it might be worth it...

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post #3 of 17 (permalink) Old 10-08-2009, 05:13 PM
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Very interesting indeed! Looks like $180 plus you send them your old one (core). I wonder how much performance increase you could expect. If it was in the range of 15-20 HP more it might be worth it...
A ported throtle body is only going to give you approx. 5-10 HP depending on the other mods you have done to your vehicle. Also throtle responce will be greatly improved.




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post #4 of 17 (permalink) Old 10-08-2009, 05:54 PM
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Also throtle responce will be greatly improved.
I would assume that mileage would decrease with this mod as well.



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post #5 of 17 (permalink) Old 10-08-2009, 06:10 PM
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great find none the less


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post #6 of 17 (permalink) Old 10-08-2009, 06:20 PM
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I would assume that mileage would decrease with this mod as well.
Im not sure that there would be a decrease in gas mileage and if there was it mostlikely wouldnt be to noticable.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete

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post #7 of 17 (permalink) Old 10-08-2009, 06:57 PM
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well im sure every one knows the general rule that more power=worse fuel economy..


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post #8 of 17 (permalink) Old 10-08-2009, 07:51 PM
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Takes oats to feed the ponies!

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post #9 of 17 (permalink) Old 10-08-2009, 08:37 PM
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Takes oats to feed the ponies!

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I like that one, I haven't heard it said like that before. It is also very true.

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post #10 of 17 (permalink) Old 10-09-2009, 07:43 AM
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I installed a ported throtle body on my last 3 vehicles and didnt notice a drop in fuel mileage.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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