straight forward questions

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Tylerlp
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straight forward questions

Postby Tylerlp » Wed May 15, 2013 10:43 am

What do i need for my 91 3.1 5 speed to swap to a 3400? couldnt find a definite answer for how to actually make the custom front mount so how is it done? what are the measurements? i also have a bar that goes from one k frame to the other so is that going to be in the way? And last but not least can i use a 96 obd2 harness and just not plug in the abs stuff and the trans stuff?


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1995 BERETTA BASE: tons of mods..if interested in what ive done to it feel free to ask
1990 BERETTA GTZ: stock for now
1991 BERETTA BASE: stock for now but is a 3.1 5 speed!

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Money pit Beretta
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Re: straight forward questions

Postby Money pit Beretta » Wed May 15, 2013 12:37 pm

Damn there should be a sticky on this.
Ok here is what I remember:
There is a guy on the Z24 site that makes the mount
WOT-Tech sells a 3400 swap chip for the 5sp

So you have a frame brace?


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Re: straight forward questions

Postby themixer » Wed May 15, 2013 3:09 pm




Tylerlp
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Re: straight forward questions

Postby Tylerlp » Thu May 16, 2013 8:11 am

well...its a frame brace but it is different from the normal ones im used to seeing where it goes under those 4 long subframe bolts. it has one bolt on each side and runs under the oil pan.


Image
1995 BERETTA BASE: tons of mods..if interested in what ive done to it feel free to ask
1990 BERETTA GTZ: stock for now
1991 BERETTA BASE: stock for now but is a 3.1 5 speed!

Tylerlp
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Re: straight forward questions

Postby Tylerlp » Thu May 16, 2013 10:04 am

and if i get the chip from wot tech i still have to change my wiring. correct? i dont see how i wouldnt have to


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1995 BERETTA BASE: tons of mods..if interested in what ive done to it feel free to ask
1990 BERETTA GTZ: stock for now
1991 BERETTA BASE: stock for now but is a 3.1 5 speed!

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woody90gtz
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Re: straight forward questions

Postby woody90gtz » Thu May 16, 2013 10:18 am

If you get a "chip", you will need the factory 91 wiring or other OBD1 setup. OBD2 is different and does not use removable memcals.

You will also need a few little things like a 3x00 throttle cable and fuel lines.


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91 "SS" 3400/5spd - EP, FFP, TCE, SPEC, DSS, S&S, OBD1, 13s? GEARHEAD dezign

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Money pit Beretta
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Re: straight forward questions

Postby Money pit Beretta » Thu May 16, 2013 10:28 am

Tylerlp wrote:well...its a frame brace but it is different from the normal ones im used to seeing where it goes under those 4 long subframe bolts. it has one bolt on each side and runs under the oil pan.

Wild, if you have the time snap a photo of it.


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Tylerlp
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Re: straight forward questions

Postby Tylerlp » Thu May 16, 2013 10:44 am

ill get a picture tonight of it lol and woody im just curious as to how i use the 3.1 wiring on a 3400??? how do i do the ICM and the fuel injectors?


Image
1995 BERETTA BASE: tons of mods..if interested in what ive done to it feel free to ask
1990 BERETTA GTZ: stock for now
1991 BERETTA BASE: stock for now but is a 3.1 5 speed!

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Re: straight forward questions

Postby Isotope » Thu May 16, 2013 12:21 pm

If you use the 91 OBD I controller for the 3.1l on a 3400 then you will be running the injectors as a MPFI and not SFI. In a MPFI setup 3 injector are on the same injector driver and the other three are on another injector driver. You would need to rewire the small injector harness on the engine to tie the two sets of three injectors together.



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Money pit Beretta
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Re: straight forward questions

Postby Money pit Beretta » Thu May 16, 2013 12:36 pm

Can you run the 99 Venture van 3400 injectors on a 3.1 like you can on a 3100?


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Re: straight forward questions

Postby Alpinestar10 » Thu May 16, 2013 3:15 pm

Tylerlp wrote:ill get a picture tonight of it lol and woody im just curious as to how i use the 3.1 wiring on a 3400??? how do i do the ICM and the fuel injectors?


Icm is from the 3400 (or 3.1) along with the injectors the injector harness of the 3.1 will need a little soldering so that you have the new style plugs on it. but the wiring is all plug and play. you'll need to extend the icm wires i believe since the 3.1's icm is down by the front exhaust manfiold and the 3400 is on top of the rear mani


Many z24 guys have used the stock subframe brace with 3400 swaps no mods needed to that



Tylerlp
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Re: straight forward questions

Postby Tylerlp » Fri May 17, 2013 10:17 am

ok cool. the only reason im considering this is because for some reson my 3.1 will not run right. i have replaced the icm, coils, crank sensor, fuel filter, plugs, wires, air filter, tps, ecm, and ive even tried to see if the cat was plugged up by taking the exhaust up and it still wont start and run like it should. it wont idle or rev up and just dies. it also slightly backfires through the intake every once in awhile.


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1995 BERETTA BASE: tons of mods..if interested in what ive done to it feel free to ask
1990 BERETTA GTZ: stock for now
1991 BERETTA BASE: stock for now but is a 3.1 5 speed!

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woody90gtz
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Re: straight forward questions

Postby woody90gtz » Fri May 17, 2013 10:43 am

I think that's an electrical problem anyway, so swapping a 3400 would not help.


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91 "SS" 3400/5spd - EP, FFP, TCE, SPEC, DSS, S&S, OBD1, 13s? GEARHEAD dezign

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Re: straight forward questions

Postby MY91GT(Z) » Sat May 18, 2013 12:21 am

I have a 3400 chip from superdave if your interested, and u can get the mount from daveycav on v6z24.com for ease of swap



Tylerlp
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Re: straight forward questions

Postby Tylerlp » Mon May 20, 2013 11:45 am

how much would it be?


Image
1995 BERETTA BASE: tons of mods..if interested in what ive done to it feel free to ask
1990 BERETTA GTZ: stock for now
1991 BERETTA BASE: stock for now but is a 3.1 5 speed!


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