I have a 1987 Gen 1 Paj wagon with a 2.6 litre petrol and 4 speed auto. I want to upgrade to a 3.0 litre V6. Will this engine bolt up to my auto trans ok ?. And will my computer recognize the V6 ?.
Cheers
Tony
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Gen 1 V6 swap
Moderator: -Scott-
Gen 1 V6 swap
Duct tape mechanic
being a gen 1 2.6 u won't have a computer, but the new engine will have a wiring loom and fuel injection computer, i'm not sure if it will bolt up but there will be alot of electrical work involved.
kaylee 2004 hdj78 RV. 33 mickey atz's, winchbar, 3i lift, 3i exhoust, spoties, roofracks and ufh. pimped interior .
86 lwb zook wt soa, 33's, locked, bard up, prety lights. monster tacho:/
86 lwb zook wt soa, 33's, locked, bard up, prety lights. monster tacho:/
If you're gonna swap the 4 for a V6, the Paj 3.0 isn't worth the hassles. Spend the money upgrading the 2.6 and you can have as good (or better) performance, better fuel economy and none of the registration or insurance hassles.
Rebuild the 2.6 with more compression, a little head work, add Magna fuel injection, mild cam, decent exhaust and you're in front - power, economy and $$$. You can even keep the same engine block, to help ease the minds of the bureaucrats.
If you insist on a V6 swap, go a Commodore EcoTec V6 - more power than the 24V 3.0 (from the Challenger/Magna) and much better bottom end torque - after all, we are talking about 4wds.
Rebuild the 2.6 with more compression, a little head work, add Magna fuel injection, mild cam, decent exhaust and you're in front - power, economy and $$$. You can even keep the same engine block, to help ease the minds of the bureaucrats.
If you insist on a V6 swap, go a Commodore EcoTec V6 - more power than the 24V 3.0 (from the Challenger/Magna) and much better bottom end torque - after all, we are talking about 4wds.
when i said no to the above, i meant to the original poster, not the other people.
when i posted nobody elses responses popped up.
sorry if people read it as if i was conflicting their opinion
when i posted nobody elses responses popped up.
sorry if people read it as if i was conflicting their opinion
-current rides-
93 JTOP Pajero, 33s, Twin Lockers, V6 3.0
97 Supra Turbo, 650hp 3.0 turbo
89 Nissan 180sx 6spd 300hp race car
89 Soarer Convertible Turbo
93 JTOP Pajero, 33s, Twin Lockers, V6 3.0
97 Supra Turbo, 650hp 3.0 turbo
89 Nissan 180sx 6spd 300hp race car
89 Soarer Convertible Turbo
I drink to this-Scott- wrote:If you're gonna swap the 4 for a V6, the Paj 3.0 isn't worth the hassles. Spend the money upgrading the 2.6 and you can have as good (or better) performance, better fuel economy and none of the registration or insurance hassles.
The 2.6L responses to every known performance upgrading trick. A point to consider is the condition of the 3.0V6. If it is from Gen 1 you better forget it. Sooner or later a rebuild will be needed. Scott's suggestion is better: a rebuilded engine with a good performance and less $$$. What do you say?
Pajero '87 soft top, 2.6L turbo EFI mod, ARB locker, 2" lifted OME, 31's M/T
Thanks for the responses it is very interesting reading. I like the idea of rebuilding the 2.6 for more power because it has been very reliable. Can any one give me a detailed list on specs for the rebuild and I have read the threads on here regarding magna fuel injection and it seems fairly straight forward.
Thanks again
Tony
Thanks again
Tony
Duct tape mechanic
Gen 1 swap
As Scott said you need to do some work with engine's head. Find a qualified shop to do it and go for lower compression (let's say 9.5:1). An improovement on the head itself can be done but the result is highly depends on the technician's skills. I believe in Australia is easy to do it. There are so many companies for engine tuning...
Also a mild cam is needed. I checked this before you, a year ago, and i found this as the best solution (keeping the low end is essential)
http://www.crowcams.com.au/templates/Ca ... -OHC.shtml
the part No 107704 is what you need. Check with Crow Cams that is ok for your engine model.
A 2" exhaust would be fine. IF you can afford the money i would suggest to go for an after market ECU. It will help you get all the performance gain from your new goodies. A new engine managment map will give you some hp and better response because the Astron engines are VERY conservatively tuned, so the improovent is great here. The best in this option is that you can keep the ECU for future plans
(supercharger, turbo, etc.) All you need then is the charger and hoses and the 2.6L becomes a wild beast that kills every 3.0L V6 ( i have done that 
) We are talking for about 200 hp, he,he,he....
Also a mild cam is needed. I checked this before you, a year ago, and i found this as the best solution (keeping the low end is essential)
http://www.crowcams.com.au/templates/Ca ... -OHC.shtml
the part No 107704 is what you need. Check with Crow Cams that is ok for your engine model.
A 2" exhaust would be fine. IF you can afford the money i would suggest to go for an after market ECU. It will help you get all the performance gain from your new goodies. A new engine managment map will give you some hp and better response because the Astron engines are VERY conservatively tuned, so the improovent is great here. The best in this option is that you can keep the ECU for future plans
(supercharger, turbo, etc.) All you need then is the charger and hoses and the 2.6L becomes a wild beast that kills every 3.0L V6 ( i have done that ) We are talking for about 200 hp, he,he,he....Pajero '87 soft top, 2.6L turbo EFI mod, ARB locker, 2" lifted OME, 31's M/T
Re: Gen 1 swap
Now your talkin boys bring on the grunt ye haconstapa wrote:As Scott said you need to do some work with engine's head. Find a qualified shop to do it and go for lower compression (let's say 9.5:1). An improovement on the head itself can be done but the result is highly depends on the technician's skills. I believe in Australia is easy to do it. There are so many companies for engine tuning...
Also a mild cam is needed. I checked this before you, a year ago, and i found this as the best solution (keeping the low end is essential)
http://www.crowcams.com.au/templates/Ca ... -OHC.shtml
the part No 107704 is what you need. Check with Crow Cams that is ok for your engine model.
A 2" exhaust would be fine. IF you can afford the money i would suggest to go for an after market ECU. It will help you get all the performance gain from your new goodies. A new engine managment map will give you some hp and better response because the Astron engines are VERY conservatively tuned, so the improovent is great here. The best in this option is that you can keep the ECU for future plans
Cheers
Tony
Duct tape mechanic
If you proceed with the rebuild don't forget to remove the balance shafts. You will have some slight vibrations that can be removed if you "balance" the crancshaft itshelf... Much better throttle response with this. It's a must
Go on mate! You're in the path of the light
Go on mate! You're in the path of the light
Pajero '87 soft top, 2.6L turbo EFI mod, ARB locker, 2" lifted OME, 31's M/T
Re: Gen 1 swap
What ECU would you recommend I use ? I like the sound of a supercharger will the ECU operate with a superchargerconstapa wrote:As Scott said you need to do some work with engine's head. Find a qualified shop to do it and go for lower compression (let's say 9.5:1). An improovement on the head itself can be done but the result is highly depends on the technician's skills. I believe in Australia is easy to do it. There are so many companies for engine tuning...
Also a mild cam is needed. I checked this before you, a year ago, and i found this as the best solution (keeping the low end is essential)
http://www.crowcams.com.au/templates/Ca ... -OHC.shtml
the part No 107704 is what you need. Check with Crow Cams that is ok for your engine model.
A 2" exhaust would be fine. IF you can afford the money i would suggest to go for an after market ECU. It will help you get all the performance gain from your new goodies. A new engine managment map will give you some hp and better response because the Astron engines are VERY conservatively tuned, so the improovent is great here. The best in this option is that you can keep the ECU for future plans
Cheers
Tony
Duct tape mechanic
I used this:
http://kms.vankronenburg.nl/index2.html the model ECU MP25 at the price list tab,
but since it is a Dutch product i don't know if you can find it there...
Anyway don't get attracted from features like ''knock sensors'' etc. You need something simple and -the most important- distributor that knows the unit that he sells very well. Stay away from Ecu's like MOTEC. Too much $$$ without anything really special for the use that you have in mind. Be sure that anything you choose must interface with the parts of the Magna EFI (water temp, air temp, throttle position, distributor). If you decide it don't buy the Air flow meter from Magna. You better buy a MAP sensor. Personally, i changed everything I threw away the old distributor and i bought one from the link above - latest technology . Also MAP sensor, air & water temp sensors, idle control unit and wiring loom. I got mad at that time .
You don't have to get mad also . Find the ECU, check the prices and we can discuss the rest...
Cheers
http://kms.vankronenburg.nl/index2.html the model ECU MP25 at the price list tab,
but since it is a Dutch product i don't know if you can find it there...
Anyway don't get attracted from features like ''knock sensors'' etc. You need something simple and -the most important- distributor that knows the unit that he sells very well. Stay away from Ecu's like MOTEC. Too much $$$ without anything really special for the use that you have in mind. Be sure that anything you choose must interface with the parts of the Magna EFI (water temp, air temp, throttle position, distributor). If you decide it don't buy the Air flow meter from Magna. You better buy a MAP sensor. Personally, i changed everything
I threw away the old distributor and i bought one from the link above - latest technology . Also MAP sensor, air & water temp sensors, idle control unit and wiring loom. I got mad at that time .You don't have to get mad also
. Find the ECU, check the prices and we can discuss the rest...Cheers
Last edited by constapa on Mon Mar 19, 2007 9:33 am, edited 1 time in total.
Pajero '87 soft top, 2.6L turbo EFI mod, ARB locker, 2" lifted OME, 31's M/T
Re: Gen 1 swap
YESSSSSSS!!!!!!! With a supercharger, a turbocharger, a naturally aspirated engine -everything. It's not a simple upgrade, it's an investment because you can keep it for future cars.bananabenda wrote: will the ECU operate with a supercharger
Cheers
Tony
Pajero '87 soft top, 2.6L turbo EFI mod, ARB locker, 2" lifted OME, 31's M/T
Re: Gen 1 swap
Thanks for your help so far with my project. I will use this info to chase up some prices etc.constapa wrote:YESSSSSSS!!!!!!! With a supercharger, a turbocharger, a naturally aspirated engine -everything. It's not a simple upgrade, it's an investment because you can keep it for future cars.bananabenda wrote: will the ECU operate with a supercharger
Cheers
Tony
Duct tape mechanic
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