need more power

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T

terryfraser

10 Year 15 Year
Joined
Dec 13, 2006
Threads
2
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5
Hi everyone this is my first post i just bought a1985 bj70 with a 3300cc diesel in it .I use this vehicle as a dd and a trail rig I have 12.5 s all the way around and a 3 inch sus lift I love this vehicle so much Ijust bought a 07 ford escape and gave it to the wife and I took the cruiser for my dd. enugh with the that though my main concern is that although there is adequit power in the first three gears it seems to be lacking power in the highway gears is this normal is there anything I can do to get more power are there turboes available where do i get them if so If anyone can help me i would apreciate it by the way I am in northern saskatchewan Canada thanks for reading merry christmas :beer:
 
it's the holidays, you got plenty of time, do search under "turbo"...
grab a drink and set yourself down for a LOOOONG read...

welcome from Calgary
 
welcome to the forum! like wayne said plenty of reading to be done, he didnt mention that he can supply or install one for you though, what a modest guy. there is a few kits out there or you can build a turbo system yourself if you are so inclined.:)
 
M-O-R-E P-O-W-E-R...M-u-s-t h-a-v-e m-o-r-e p-o-w-e-r... (the lament of many pre-FZJ Cruiser owners).
Welcome to MUD - Your favorite new addiction!
 
Narrower tires and better gearing may work a long way.
A turbo is great but if the engine is a bit tired you may happen to have no power at all one day.
Before suggesting a turbo I'd look into why is the current performance judged as insufficient ?
 
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Welcome from Panamá !!!!

You have a long gearing options for your cruiser .. cheap than a turbo setup .. trustme
 
i do agree with denis and tapage, mostly. i did a home job turbo, merkur turbo $180(ebay), & pyrometer $150, & boost gauge$35, $45 nickel iron welding rod for exhaust manifold, & new exhaust $180 (also home built) & aluminum pipe(intake) and oil lines(stainless) "borrowed from work". probally comparable to the price of ring and pinion and knuckle rebuild kit. completed it in a weekend.

I dont expect everyone has access to mig and arch welders (although i am sure theres many that can a lay a better weld than me), i guess it depends on the money and quality or power you are looking for out of your cruiser. i like working or creating things for my own, and i am not too bummed if things dont work the first time, but my ability to build a turbo system isnt on par with waynes kits or many others out there. probally couldnt do as a good a job installing the gears as tapage either, but its a learning project for me and i love it. just one more idear for ya.
 
IMOP in a turbo setup ( my experience ) you need to spend at least 1k to 1.5k I thought mine goes around those numbers ..
 
actually im not sure about what kind of turbo you would use with his motor, 3300 cc, is this an H motor? i am under the impression the 3b's (3431cc)might be a little easier for home builds. anyways thats about what i spent. and i will re-gear eventually when i have money again oneday, i think 37's are in the works.
 
thanks the information and yes it is the 3.4l its nice to get some answers to my questions iwas getting really frusterated I called the 2 bigest toyota shops in sask talked to the main diesel mechanics and all i got was ugh ugh i dont now those are way before my time they couldnt even tell me if the filter light on my dash that had come on was for the fuel filter or the air filter .as you can probably tell im not a mechanic but i did know that that was the fuel filter light 90%any way.my neighbor just bought a 82 bj 60 with the same engine he has narow tiers and no lift he also finds his rig lacking in power where cold we get comp tests done and what should it be where in the world could i find a mechanic for these engines my home town papered mechanic is unable to tell me much had him replace alt and he said thats about as far as he could go on it .I would like to maybe rebuild motor how much should this cost I know it may depend on the type of rebuild but what would be the low end and what would be the top end thanx terry willbe gone logging for 6 days talk then
 
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i would get a compression test done, but the reality of the 3b is they are an underpowered engine. gutless on hills and highway. 4 wheel auto in edmonton does rebuilds and supplies kits, there are others around too of course. 4wheel autos rebuild kit not including labour runs about $1350. i think i got a quote of about $4000-$5000 or more for a complete rebuild once.

found a complete motor (90,000kms unverified) for $1500 on buy sell.(i had a cracked head gasket, sucked in too much coolant ate up the rings ran like crap but it was from overheating and my fault for not keeping up on maintenance, got 400,000 kms on it anyway)

heres the link to 4wheels rebuild kit. http://store.4wheelauto.com/view_product.php?product=DIEW0Z2J22

check the compression first, the 3b's are capable of a lot of kms if you maintain them, ive seen 680,000 on someone elses and have heard of a lot more.
how many km's on the odometer?
 
thanks for the info there is 334ooo on odometer motor runs quiet but cant pas on highway going down hill well not that bad but definatly lacking in power i also have herd of people getting lots of k on these motors one guy has had his since new 950000kon his but he has a rust issue dmv pulled it off the road thank goodness my fatherinlaw owns a autobody shop . just got back frome chewing should of had a camera 2 toyotas pulling out a king ranch haha
 
do a dry and a wet compression test and post up the results...
at that milage it should not need a rebuild if it has been taken care of... usually you are looking at 450,000-550,000 before the first rebuild is considered...

they are SLOW, great off road and fantastic torque down low... you want fast then turbo...

simple enough...
 
terryfraser said:
thanks for the info there is 334ooo on odometer motor runs quiet but cant pas on highway going down hill
Click to expand...

Normal for a BJ60. Very very underpowered on the highway. It's just the way they are.

You can improve it though. You can open the exhaust up to 2.5 inches, and install a pyro gauge to read the exhaust temp around the bottom of the manifold. Then you can dial the fuel to your altitude to get the most from the engine. Then you drive the vehicle to the pyro, not exceeding safe limits for the engine(generally thought of as 1250 degrees F)

Now for mechanics, learn to do it yourself. With guidance from here you should be fine. No toyota garage would be familar with a 20 plus year old vehicle.

But the collective minds of MUD will help you through just about any problem known to these vehicles.

Cheers, BB
 
thanks to everyone for the great info have lots of reading to do . tried to put pictures up but have a size problem need wife to help downsize them will post comp test results when i get it done I am gone now for a week check in latter thanx again merry christmas:cheers:
 
Just curious but how much difference does the bigger exhaust make?

What is involved in getting the right fuel mix for various altitudes? I live right down around sea level and drive up to a mile above on a regular basis... Oh yea and it is a real dog getting up the mountains but I still love my Cruiser.

Cheers
Rod
 
rlahaise said:
Just curious but how much difference does the bigger exhaust make?

What is involved in getting the right fuel mix for various altitudes? I live right down around sea level and drive up to a mile above on a regular basis... Oh yea and it is a real dog getting up the mountains but I still love my Cruiser.

Cheers
Rod
Click to expand...

The bigger exhaust allows the exhaust to get out easier and not allow a back up keeping the temps high. Most people notice an easy drop in temps. I have noticed on my truck not being able to get the temps low due to a squished exhaust. I was on the highway trying to climb a highway had to slow due to climbing temps, the lower foot pressure didn't help keep the egt's down either, took quite awhile for them to back off, I ripped the squished part off and it flowed better, no surprise.

To see these temps though you need a pyrometer. If you don't know what that is, just try some searching on here.

And for altitude adjustments, on some 3B's(without the altitude compensator) you can dial a fuel screw to give it more or less fuel. But that is dpendent on your EGT temps. Factory setting allows for driving to the top of mountain with out getting too hot, but only to a limit.

By having a pyro, you can add more fuel to increase power at sealevel but then have to watch it if you climb up in altitude. It's a trade off. Too hot and your engines fawked. Too little and it is really a slow unit.
 
Oh and newbies... it helps to put your vehicle in the signature line. So when you ask questions people know what vehicle your referring to.

Cheers.. BB
 
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