Ideal Transmission/setup for 1G FE engine

saam596 (saam596) 2014-07-12 16:24:42 +0500 #1

AOA...!
with all due respect i am here to share my problem with all of you , soliciting your expert opinion.
i have Cressida Grande Mark II , engine was swap with 1G -Fe with Automatic transmission. thinking of 6 straight engine i expected to touch 130-140km/h easily on highway in CNG but never find it above 120, unless i press the full throttle.
Keeping the issue infront i changed wiring, ECU, Differential and later the transmission even all at different stages, but the desired result hasnt been achieved.
The later Transmission i installed is double OD A/T . i need suggestion in this regard , what am i missing ? Transmission/Differential or what ?
i have found Crown/ MarkII the newer version run past 150km/h on highway with same engine.

kindly put light on it . Regards

rajaatta (Raja Atta) 2014-07-13 10:27:28 +0500 #2

If you had swapped the engine then you need to rewire the ecu properly if the ECU is of ECT transmission then you had to shift back to ECT transmission which in common term known as kuppiyon wala gear. but as you mentioned you are using normal o/d type gear then problem is with the engine please post some picture's of the engine and ecu so I can help you properly.

saam596 (saam596) 2014-07-13 17:07:39 +0500 #3

Engine.

saam596 (saam596) 2014-07-13 17:07:40 +0500 #4

Ecu , Labeled "1G-Fe A/T"

saam596 (saam596) 2014-07-13 17:09:18 +0500 #5

it is worth noting that as i mentioned earlier i have Automatic transmission with 2 Over Drives , Double O/D. Mean 5 speed Auto gear box installed with this engine and ECU.

argus (argus) 2014-07-13 17:23:56 +0500 #6

What city are you located in?

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saam596 (saam596) 2014-07-13 17:42:16 +0500 #7

Peshawar...!

argus (argus) 2014-07-13 17:47:21 +0500 #8

Oh ok. Can recommend someone if you are in Pindi sometime.
Very knowledgeable, educated electrician, who I believe can help you

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Xulfiqar (Xulfiqar) 2014-07-13 19:18:53 +0500 #9

double O/D?

what model of gearbox is this? - the ECU you have usually has the basic 4 speed shifts (4th = overdrive) and then final torque converter lockup, Are you calling the lockup as the "double overdrive?"

please install the correct airbox setup for this engine - the insane elbow and the stove pipe type setup is literally ghetto rig extreme.

The cressida even with basic 22R engine can easily achieve 180 km/h with manual 5 spd manual gearbox, With the 7MGE and plain 4 spd auto I have sped ahead of 200 km/h in a 1988 cressida (square block shape).

the 1G-FE is not a very good engine - I prefer the 22R-E over it as it has more punch to it.

Dongskie (Dongskie) 2014-07-13 19:47:50 +0500 #10

What engine was that?

Oh 1G-Fe found it

saam596 (saam596) 2014-07-13 20:55:26 +0500 #11

i am thinking to change back to Manual transmission, before this A/T which i am calling Double OD gear , it had plain 4 speed A/T , nothing improved since then even. Same speed, same pick . Even at Patrol it stuck around 140 km/h. what do you guys think. Any measure can change tempo of performance or manual transmission will be good choice. Recommendation/suggestions are invited please

rajaatta (Raja Atta) 2014-07-14 16:38:59 +0500 #12

rewiring of the ECU harness and the ECT transmission is your soloution . dont worry it will get better if not then contact me.

saam596 (saam596) 2014-07-15 08:58:03 +0500 #13

Rajatta bro , do you know any competent Electrician , as here i havent found any yet. They only know " Garam wire and neutral " :S . Thats the reason i am not experimenting anything. i know IG engine is capable of what i need, but it is not perfectly wired. So help me out by some means if you can.

Xulfiqar (Xulfiqar) 2014-07-15 12:28:26 +0500 #14

firstly read the transmission model code you have, there is no transmission that is double overdrive that you mention.

rajaatta (Raja Atta) 2014-07-20 13:36:19 +0500 #15

ok pmeing you the contact dont forget to mention my refference they are sole expert's for the problem you are facing.

rajaatta (Raja Atta) 2014-07-20 13:36:42 +0500 #16

he has A42D the ECT one

saam596 (saam596) 2014-07-20 15:32:56 +0500 #17

Thanks bro. waiting for the contact. btw where they are situated.

saam596 (saam596) 2014-07-20 15:34:00 +0500 #18

isnt this transmission idea for this engine ?

rajaatta (Raja Atta) 2014-07-20 15:58:50 +0500 #19

they are in rwp
jack up your car and take picture's of your cars transmission

saam596 (saam596) 2014-07-21 11:49:30 +0500 #20

Here are pictures of the Car and transmission. i search for the transmission model on the box but could not trace it. Just Found a letter G on the housing bell.