jdavis
Mudrunner
Reged: 04/17/04
Posts: 288
Loc: Seattle, WA
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I'm looking at purchasing a JDM engine as a replacement engine for my current build up.
The JDM place says the engine is compatible with a 95 Montero SR but came it comes out of front wheel drive car.
Does anyone know if there are differences internally between the 3.5 DOHC for a Montero and a car?
I understand that I need to swap external parts for the engine to work but curious if internally one engine is more stout than the other.
Thanks,
~ Jon
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Seattle, WA
94 Montero SR
33 x 12.50 on stock rims
Daystar 2" Coil Spacers
10K Winch
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off-roader
Mitsubishi Forum Moderator
Reged: 01/16/00
Posts: 15489
Loc: Bay Area, CA
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IIRC the cams are different allowing for a different torque curve needs for a car versus montero.
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Off Roader
96SR (3.15:1 xcase, 35's), 89 V6 SWB (33's)
96SR Build Up Thread
Old web page
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OldColt
Roll Me Over
Reged: 09/19/06
Posts: 2599
Loc: East Wallyworld Vermont
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The first thing I will warn about is do not buy from any of Osaka's companies. Most of them are JDM something. look up whom you are buying from to check. Sam from Osaka will F' you on anything you buy.
The Diamante 3.5 has full forged bottom end. The cams are the same but the sprockets are different providing different timing specs.
If I recall the compression is higher as well.
There are a few bolt holes for mounting things that are different but nothing that can not be worked with.
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Cheers, Charlie
If It ain't broke, Modify it!
87 Montero turbo Converted back in 1989
95 Montero SR 3.8 DOHC First one?
Will a 94 Macrocab turbocharged with a 6 speed be next?
ffmsd.com
http://www.cardomain.com/id/Old-Colt
http://6g72rwd.forumcircle.com
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jdavis
Mudrunner
Reged: 04/17/04
Posts: 288
Loc: Seattle, WA
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Thanks guys!
I think the company is local here in the NW but will check it out.
How is the torque curve different? Guess a better question would be - will the TC be better or worse for my application. A lot of slow off reading in mountain terrain plus pulling a 16ft camper?
Thanks,
~ Jon
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Seattle, WA
94 Montero SR
33 x 12.50 on stock rims
Daystar 2" Coil Spacers
10K Winch
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ES_97Sport
Rock Warrior
Reged: 07/19/03
Posts: 548
Loc: Colorado, US
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Big heavy vehicles towing need a lot of torque down low. Hence diesiels. Cars are lighter and generally not towing 5K trailers so they don't.
Do not ever put a cam for a 3000 lb car in a 5000 lb truck with a 5000 trailer. You will not be happy.
BTW, the 3.0 and 3.5 blocks for the Montero are not the same as the same for FWD cars. Some mounts and mount holes are different as well as some of the bolt on pieces.
Edward
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'97 Montero Sport LS 5-Speed 3.5L conversion
SAS Dana 44s & ARBs, 35" Yoko Geolandar M/Ts
NP231 B4R doubler/Terra Low231/RP 5.38 228:1
'03 Montero Sport Limited AWD
'97 Montero Sport LS 5-Speed 3-link/SAS project
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MontyMcV
Trail Leader
Reged: 06/04/03
Posts: 7042
Loc: Cleve-burg OH USA
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Do yourself a favor and research well who you are buying from. Better yet, get a good referral. Like Charlie said, Osaka will rip you off and not look back. They are in a few locations, plus on cleavage, but not as Osaka. JDM Engine Depot in NJ is another scumbag.
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Big Truck 2: 00, 3.5, Endeavor, 94k, stock for now
Big Truck 1: 95, MT, >Gone<
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 29k miles!
FSMs: MitsubishiLinks.com
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jdavis
Mudrunner
Reged: 04/17/04
Posts: 288
Loc: Seattle, WA
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This is the place Lynwood, wa that has the engine - http://www.foreignengines.com/
Looks like it is a company here in the Northwest. Any body heard of them before?
But the consensus seems to be the engine will not work because the cam/ power ratio is different.
Any other suggestions? Not sure I'm up for rebuilding it, need a few more skills.
~ Jon
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Seattle, WA
94 Montero SR
33 x 12.50 on stock rims
Daystar 2" Coil Spacers
10K Winch
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MontyMcV
Trail Leader
Reged: 06/04/03
Posts: 7042
Loc: Cleve-burg OH USA
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The same people have a 95 3.5...
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Big Truck 2: 00, 3.5, Endeavor, 94k, stock for now
Big Truck 1: 95, MT, >Gone<
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 29k miles!
FSMs: MitsubishiLinks.com
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jdavis
Mudrunner
Reged: 04/17/04
Posts: 288
Loc: Seattle, WA
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Quote:
The same people have a 95 3.5...
Yea, the website is kind of misleading. It says they have 94/95 3.5 motors for a Montero but it really means they have compatible motors.
I'm just not sure how compatible they are 
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Seattle, WA
94 Montero SR
33 x 12.50 on stock rims
Daystar 2" Coil Spacers
10K Winch
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jdavis
Mudrunner
Reged: 04/17/04
Posts: 288
Loc: Seattle, WA
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Thanks for all the comments so far.
I’m still having a hard time deciding which way to go with the engine. Here’s what I’m thinking about
1. Drop truck of at shop and have engine rebuilt
a. Easiest solution
b. Would have a warranty with work
c. 4 to 5 k, can’t really afford
2. Rebuild engine myself
a. Cheaper but still expensive
b. Not sure I have the skills set
3. Install a remanufactured engine
a. Cost 2K plus more; in my price range
b. Quality of engine?
c. Feel this is within my skill set
d. From what I’ve read no guarantee it would have the Montero cam
4. Install JDM Engine
a. This is within my skill set
b. Cheapest option
c. Engine compatibility?
d. Can the cam in the current engine be swapped into the JDM engine? Is it a simple swap?
e. Since the front wheel drive engine develops more horsepower, how bad would it be in the Montero?
Sorry for the Noob questions but I do appreciate every ones comments and insights.
Thanks,
~ Jon
--------------------
Seattle, WA
94 Montero SR
33 x 12.50 on stock rims
Daystar 2" Coil Spacers
10K Winch
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