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General Forums => The Mess Hall => Topic started by: Mittenz on March 02, 2010, 03:21:56 PM

Title: 4.0 Throttle body on 2.5l Dyno report
Post by: Mittenz on March 02, 2010, 03:21:56 PM

This is a dyno test of the 4.0 l throttle body on the 2.5L. I found it on Quebec4x4.com a french bord

Small line are with the stock T.B and the big line are whit the 4.0L  T.B

(http://img517.imageshack.us/img517/3493/jeep4lvsstock.png)


With a 4.0 l you gain 7.5 HP at engine and 5.3 Lbs  of torq! What a great deal. Without the Spacer.

Soon I'll post the dyno report for a 62MM T.B (Modded 4.0L ) with a Spacer.


Original topic http://www.quebec4x4.com/forum/showthread.php?t=67678  (French Board  )

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: Jeffy on March 02, 2010, 05:03:58 PM

Very nice.  What kind of Dyno was it and what was the ambient air temperature?  What are the Jeeps specs?

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: Mittenz on March 02, 2010, 06:31:19 PM

Im not sure because it's not me who do this test. but on a garage apreximaly 24 for temp...

I'ts a tj who perform this tes  it was preety stock

For the dyno spec i dont relly know :puzzled:

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: sharpxmen on March 02, 2010, 06:48:17 PM

Quote from: Mittenz on March 02, 2010, 06:31:19 PM

Im not sure because it's not me who do this test. but on a garage apreximaly 24 for temp...

I'ts a tj who perform this tes  it was preety stock

For the dyno spec i dont relly know :puzzled:

hey man, that's great info - thanks for those charts

Jeffy, he meant 24 Celsius which is about 75 F.

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: chrisfranklin on March 05, 2010, 12:37:23 PM

I see the extra hp/tq comes on right at the rpm where I'll never use it  :lol:  It's still a good mod though, especially for the money

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: dwtaylorpdx on March 05, 2010, 08:09:37 PM

I've pretty much shifted mine at 5K since new.... SO I'm happy!  8)

Dave

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: Bounty Hunter on August 19, 2010, 10:02:43 PM

Quote from: chrisfranklin on March 05, 2010, 12:37:23 PM

I see the extra hp/tq comes on right at the rpm where I'll never use it  :lol:  It's still a good mod though, especially for the money

Maybe you should be running between 3600 and 4600 more often, the 2.5L prefers it.

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: aka-justin on August 19, 2010, 11:37:35 PM

Crap! 89 HP in drag!!!  That's where all the mpg goes ;)

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: RT on August 21, 2010, 04:33:22 PM

so when you mount a 4.0 tb on a 2.5 all you do is bolt in in place and transfer all the sensor/cable equipment from the orgional 2.5 tb over right?

Title: Re: 4.0 Throttle body on 2.5l Dyno report
Post by: aka-justin on August 21, 2010, 08:46:22 PM

Yep and clear the computer's memory (Disconnect Negative Battery Cable and drain system, can flick on the head lights and key to on and off should do it, then reconnect the battery.)  There's some more info. here http://4bangerjp.com/forums/index.php/topic,6008.0.html http://www.4x4wire.com/jeep/tech/engine/throttlebody01/ ... etc