DTSFab.com (Desert, Trail and Sand)
Automotive Powered Off Road (AKA: Buggys, Jeeps, Trucks, Etc,Etc. ) => Motor and Drivetrain => Topic started by: BrianN on June 22, 2018, 01:41:13 PM
-
Starting a swap to Subaru. I bought a 2.5 sohc non turbo from a co-worker, but instead of a complete motor and transmission, I am getting parts and pieces. Should have just bought a jdm complete. Anyway, lots of questions. Can I just swap the throttle by wire throttle body to throttle by cable? I have the engine harness, but not the body harness. If I go stand alone ecu, do I need the body harness? I can fabricate, but wiring and electronics is not my thing. I am not looking for huge horsepower. I am planning on using the mt5 converted to use the front diff only. I plan on building a 5 link rear suspension. Would like to keep this simple as possible, and am on a budget. I have a lot of questions on this, but will stop there for now. Next, I have found a 2017 Crosstrek Ecoboost 2.0 engine. Should I even consider this? Conversion to throttle by cable? It will come with the wiring to the fuse block, and the fuse block. Will my mt5 even bolt to it? Thanks in advance.
(https://s8.postimg.cc/vm5l56ufl/IMG_20170603_205449186.jpg) (https://postimg.cc/image/vm5l56ufl/)
(https://s8.postimg.cc/8r2p2z6m9/IMG_20180603_143522964.jpg) (https://postimg.cc/image/8r2p2z6m9/)
-
Welllllll,I am not a subi expert by a long way. Hopefully the ones here will chime in soon. I KNOW there are members that can answer those questions.
-
I haven't received any responses on these motor questions, so I had better skip the idea of trying the new Subaru Crosstrek motor. I would like to hear any ideas about swapping the wire throttle to cable throttle, though. And if it will create tuning nightmares, or even possible. Thanks.
-
i'll pm a couple guys that may know.
-
I used Outfront's Stinger ECU and wire harness. Their harness is only $350 that hooks to the ecu and engine. Very easy. The throttle by wire I am not familiar with?
http://www.outfrontmotorsports.com/engine_management.htm
-
i see you camp on southside so prob why we have never seen you there lol
so drive by wire throttle is built into the harness and ecu. if you plan on using a stock engine harness and/or ecu then leave it. if you can re pin the harness to a cable throttle style and alter what ever ecu you have then go for it.
no you do not need the body harness unless your using the stock ecu and then you may even need the body control module unless you have a source to get the theft system and such flashed out.
if you want to stay stock for ease, price and pump fuel you would still be better off with a stock turbo suby. stock ecu and engine harness then get on the suby forums (if no one can tell you here) and find out what needs to be shut off in the ecu and who can flash the stock ecu's.
if you go to a stand alone engine harness and ecu just buy it from outfront as budlight69 stated. he will even load a tune for your engine to bump it slightly over stock for the fuel you want to run.
-
Thanks guys. The motor I have, although incomplete right now, is a 2.5, non turbo, from a 2007 Impreza 2.5i. dsrace, do you go to Little Sahara? I will plan on going with the aftermarket ecu/harness. I will ask another 200 questions as they come up!! I read somewhere that it was possible to bolt a different (cable throttle)to the intake, using an adapter for the bolt pattern. But I can't confirm that, yet.
-
Almost all of the regular posters here go to LS 1-2 times a year. Some more often. We also go to St.Anthony,Idaho as often as we can .
-
Thanks guys. The motor I have, although incomplete right now, is a 2.5, non turbo, from a 2007 Impreza 2.5i. dsrace, do you go to Little Sahara? I will plan on going with the aftermarket ecu/harness. I will ask another 200 questions as they come up!! I read somewhere that it was possible to bolt a different (cable throttle)to the intake, using an adapter for the bolt pattern. But I can't confirm that, yet.
yes LS is home sand for myself. i too run a little 4 cyl engine and a megasand trans. so you can see mine is a low budget build as well.
(https://s15.postimg.cc/ku6x1klaf/IMG_20180426_150841.jpg) (https://postimg.cc/image/ku6x1klaf/)
-
the last 6 link i built. and that video i posted you can see the current a arm rear drive i built.
(https://s15.postimg.cc/hakzbvsw7/0913141512.jpg) (https://postimg.cc/image/hakzbvsw7/)
-
I would do what was suggested above. Contact outfront and they can get you headed in the right direction. Tell them what motor you have and they are good about giving you options. I was going to stroke my 2.0 Subaru and the owner John asked for more info first. He had me email photos and give him all the motor info. He told me the notorious issues with my motor and what it would take to build. In my scenario it would have been cheaper to build a different motor than use what I had. John will be able to steer you down the best path.
With all that said you can always keep your eye out for a used motor. I got my fresh outfront motor used for $2600 on craigslist. I threw an intercooler on, upgraded the turbo and header, added some other outfront goodies, and had it tuned by John. I now make 400hp for under $5k. I could have just left the motor how it was when I bought it and had 300hp for $2600.
-
Almost all of the regular posters here go to LS 1-2 times a year. Some more often. We also go to St.Anthony,Idaho as often as we can .
I'm just the lonely guy down in Glamis
-
Almost all of the regular posters here go to LS 1-2 times a year. Some more often. We also go to St.Anthony,Idaho as often as we can .
I'm just the lonely guy down in Glamis
so all the reason you should show up for a group run at st a!! lancew has made the drive twice from south cali! :)
-
Do you guys ride with Glenn Zeiness? I may have spelled that wrong. Yellow 6 cyl. Subaru. He sent me to this forum.
-
sure do....he's in that group run pic i posted.
-
Do you guys ride with Glenn Zeiness? I may have spelled that wrong. Yellow 6 cyl. Subaru. He sent me to this forum.
[/quote
Boy that name sounds familiar. :i
-
rofl
-
Almost all of the regular posters here go to LS 1-2 times a year. Some more often. We also go to St.Anthony,Idaho as often as we can .
I'm just the lonely guy down in Glamis
We'd love to have you join us if you are ever in the area for sure!!
-
Glenn is a great guy! His car is too!!
-
when you get that suby trans all setup up with 930 flanges and for 2wd in the rail measure it and post the specs please. total length and flange width on the 930 flanges. i know the megasand is the same width as the 091 which are 2" wider than the mendeola trans. i think the diff sits lower in the case on that suby trans as well but not positive on that one. the 6 speed awd wrx sti trans is claimed to handle 600hp in stock form.
-
Thanks guys. The motor I have, although incomplete right now, is a 2.5, non turbo, from a 2007 Impreza 2.5i. dsrace, do you go to Little Sahara? I will plan on going with the aftermarket ecu/harness. I will ask another 200 questions as they come up!! I read somewhere that it was possible to bolt a different (cable throttle)to the intake, using an adapter for the bolt pattern. But I can't confirm that, yet.
I have pretty much the same engine. I sourced a cable operated throttle body from Outfront, could probably find one in a junkyard from an older subaru.
(https://s8.postimg.cc/mck49omip/IMG_0953.jpg) (https://postimg.cc/image/mck49omip/)
-
and there you have the answer!
-
dts comes through through yet again. I truly believe dts has the best info available. Now if we could just get people off all the social media and return to the best form of disseminating info there is we can continue to do so..... Social media reaches a lot of people but it is for the most part just a fart in the wind. Info, and a lot of garbage info as well ,is there and gone..
-
You guys are awesome. I will add info as I continue with this, as soon as I have facts.
-
dts comes through through yet again. I truly believe dts has the best info available. Now if we could just get people off all the social media and return to the best form of disseminating info there is we can continue to do so..... Social media reaches a lot of people but it is for the most part just a fart in the wind. Info, and a lot of garbage info as well ,is there and gone..
i post links to dts on fb and tell people to search for the info on forums cause its not on fb. i have stated this in the 7.3 diesel groups on fb also. amazing how much a lot of those members do no know that is old common knowledge. i can understand if there young and new but on a forum all that info is in stikcy notes for all to read. dont see social media ending anytime soon.
-
Just got off the phone with Subistuff. I guess the Subaru trans is "open diff", so basically single tire drive in sand. He suggested 4:86 r.p. and limited slip diff. Approximately $4000.00. Not possible for me. Anyone else out there have experience with this?
-
Just got off the phone with Subistuff. I guess the Subaru trans is "open diff", so basically single tire drive in sand. He suggested 4:86 r.p. and limited slip diff. Approximately $4000.00. Not possible for me. Anyone else out there have experience with this?
Not so Brian. It is possible to have limited slip on the cheap. Back in the day I could set up a differential to mimic a posse track. that suby can't be that much harder.
-
ask them if they can add 2 spider gears for a total of 4.....poor mans posi.
-
Will do. Thanks.
-
Just got off the phone with Subistuff. I guess the Subaru trans is "open diff", so basically single tire drive in sand. He suggested 4:86 r.p. and limited slip diff. Approximately $4000.00. Not possible for me. Anyone else out there have experience with this?
I had 4:57s in my 091 before it went to south for the winter and never came back. The 2.5/4:57 combo, did alright at Glamis (sea level), ok at St Antony (4000' + ?) and sucked at the Coral Pink (6000' +).
The newly rebuild 091 has 4:86 gears, so far haven't done anything but disturb the peace in the neighborhood.
Seat of the pants, feels a lot snappier, as in, it will light up the street tires in a corner if not careful and it wouldn't do that before.
-
I read that the 4:86 is stronger in the Subi. I may try building my car with the stock tranny. But this is not really an educated decision, just based on things I read.
-
stickflipper.....was that an n/a 2.5 you ran?
brianN......i have read that the suby sti stock 6 speed trans is good to 600 hp. not sure which one you have but i bet the 4.86 r&p would be deep enough. that all depends on the gear ratio in the stacks and your tire dia.
-
my megasand doesnt have a limited slip diff......just 4 spider gears. the fully built 091 i had before was the same thing.....4 spider gears.
-
DS and I were talking about the Subi trans, and how it could be a much cheaper reliable trans to use a few months back. Few cars spin just the one tire in sand, turning brakes would help that LOL. Someone was doing one, maybe that was you, Brian? But we had it into the $2500 range I thought, but slept since then.
-
stickflipper.....was that an n/a 2.5 you ran?
brianN......i have read that the suby sti stock 6 speed trans is good to 600 hp. not sure which one you have but i bet the 4.86 r&p would be deep enough. that all depends on the gear ratio in the stacks and your tire dia.
yes
-
I have a 2003 mt5 and a 2007 Impreza 2.5i mt5. And to the previous question, I have never used these before.
-
DS and I were talking about the Subi trans, and how it could be a much cheaper reliable trans to use a few months back. Few cars spin just the one tire in sand, turning brakes would help that LOL. Someone was doing one, maybe that was you, Brian? But we had it into the $2500 range I thought, but slept since then.
wasnt brianN......fellow in texas.