[mcrews]

I recently retired the 2002 Q45 Sport w/IMPUL bodykit.

I got my daughter's 2006 Kia Sportage EX V6 FWD w/100,000 miles in pristine condition.

Have several mods to start:
1. Mounting Garmn GPS and ScangaugeII
2. upsizing tires
3. Front grill block
4. Underbelly pan
5. concidering swapping out the tranny for an Optima tranny w/ a 3.77 gear.
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Here is an exchange I had with someone on the Kia Sportage forum:
I just inherited a 2006 Sportage EX V6 FWD from my daughter. It is in GREAT condition and I plan on driving it for awhile.
I just put 273,000 on a 2002 Infiniti Q45 Sport.
I am interested in getting better mileage.
I am on ecomodder.com and increased the mpg on the Q45 from 22mpg on the road to 30mpg.
The Q45 had a 2.76 rear ratio and that helped w/ the 5 speed auto w/ od.

Does anyone know if Kia made a 5 speed automatic transmission that would bolt into the 2.7V6?
I realize that a standard would be optimal, but I want to keep the automatic. (For simplicity)
Did Kia come uot with a 5 speed Auto in later yrs?

I will start a thread on improving mpg. The most important aspect of improved mpg is 'improving the nut behind the wheel'.

11-14-2012, 07:27 AM #2 (permalink)
tysinbad
Full Member
Join Date: Feb 2009
Location: Ipswich Queensland Australia
Posts: 151
Drives: 06 Sportage/08 Sorento
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The transmission used in the kia is an F4A42-2 and it only came in 4 forward gears and one reverse. It was not changed until the new sportage was released. With this change came a new transmission.

The F4A42-2 is used in a number of kia and hyundai vehicles, all 4 speed. Interestingly though, the final drive ratio from the optima (3.770) is less than the Kia (4.042 for FWD and 4.407 for 4WD). In my father-in-law's Optima, he sits on 2000rpm at 100kmh whereas I sit on 2500rpm at 100 kph (4WD for me).

You could swap these transmissions and thus have lower engine rpm for a higher speed, but I am not sure how the transmission control module will like it being a different final drive ratio.
__________________
06 V6 EXL Sportage - NGM Stage 1 Sniper Charged
UNICHIP ECU, 2.5" Exhaust, Custom Headers, Modified Intake

Yesterday, 11:24 AM #3 (permalink)
mcrews
Newbie
Join Date: Dec 2011
Location: San Antonio Tx
Posts: 14
Drives: 07 Kia Sportage 2WD, V6, EX
Gallery: 5
Garage
mcrews's Garage
2006 Kia Sportage
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tysin,
Thank you sooo much for that information.
Infiniti uses the 2002 Q45 tranny in a lot of models also. unfourtunately, they all had the same ratios because it was a rear wheel drive tranny and the changes where made at the rear end.
They 02 Q45 had a 2.76 reaR ratio which was conduceive for better mileage.


My next question is will the lower ratioed tranny effect the ecu.
I am hopping someone here can help with this question. Someone told me that the might be two sensors that read speed. on one the input saft and one on the output shaft.