Topic: 4.0 Throttle body on 2.5l Dyno report

[Mittenz]

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




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 )

[Jeffy]

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

[Mittenz]

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

[sharpxmen]

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

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

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

[chrisfranklin]

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

[dwtaylorpdx]

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

Dave

[Bounty Hunter]

I see the extra hp/tq comes on right at the rpm where I'll never use it    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.

[aka-justin]

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

[RT]

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?

[aka-justin]

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