which fmu do i go with - Boost Forum

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which fmu do i go with
Sunday, February 22, 2009 5:50 AM
hey whats up guys, i have my turbo kit sitting in my room, i just ordered the ostrich 2, a wideband and a gauge, but now i need a fmu, i keep seeing all these different ratios and im not sure which ratio i should be running, i would be running around 8-10 pounds of boost on a t3/t4 can anyone point me in the right direction, also i wanted to know how different is the 2.4 turbo manifold from the 2.3 could i just port out the manifold to get it to match the exhaust ports on the 2.3 head, and does anyone know what is a good injector size. or if there are injectors from another car i can use. I have a 95 2.3. i dont plan to run anything more than 8-10 lbs, 8 is more likely though.


if it can't win a race it better win a show

Re: which fmu do i go with
Sunday, February 22, 2009 6:12 AM
....

You make a Two bar tune, with Turner Pro, use a Two bar sensor, use the correct size injectors.

A FMU is not needed.


You must cut the LD9 flange off, and weld on a LG0\LD2 flange.

550CC or larger.


Is this a 95 LD2?!

Hope not.

If so, spend 650$ or so on a nice 92-94 LG0 Quad-4 HO. and then turbo it.

Chris




'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

Re: which fmu do i go with
Sunday, February 22, 2009 10:25 AM
yes its the L.O engine that comes in the 95, why did u say u hope not, and the H.O engines are better but not very easy to come by now days, and i would also have to change the wiring harness also i believe


if it can't win a race it better win a show
Re: which fmu do i go with
Sunday, February 22, 2009 4:36 PM
Hmm.. everything was plug and play for my 95....
Car-Part.com has them all day for less then 800 most of the time.

the 95 LD2 dose not even rate to be called a LO.... there CRAP engines.

Chris




'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

Re: which fmu do i go with
Sunday, February 22, 2009 6:37 PM
what do u mean everything was plug and play for ur 95, did u have a 2.3, and u are entitled to ur opinion some feel the 95 motor is better than the 2.4, it has a better flowing head, better cams, better oil system, both motors have their flaws though


if it can't win a race it better win a show
Re: which fmu do i go with
Sunday, February 22, 2009 7:05 PM
Um... I think we need to lean you something right quick...

Quote:

1995 Chevrolet Cavalier Z-24

About This Vehicle:
My cams cost more then the car.

Body Style: Coupe
Color: Purpal
Engine: 2.3 Quad-4 HO (W-41)
Transmission: Manual
Interior: Gray
Purchase Date: 04 Nov 2007
Purchased From: Brian (speedracer)

Quarter Mile Timeslips:
08:58 PM - 01/Oct/08 - GLD (14.785@94.29)
09:34 PM - 01/Oct/08 - GLD (14.681@93.89)

Manufacturer Options

* 2.3 LO Quad-4
* moon roof


MODIFICATIONS

Engine:

* LG0 High-Output 180 HP 1992 Engine
* 2k up starter
* AJT FPR w\ gauge
* under drive pulley
* Team green no AC "MOD"
* 2.4 intake pipe
* LD9 upper motor mount with inserts
* LD9 lower solid dog bone
* RE-Built 11 Aug 07
* NEW GM W41 cam's
* 10.5:1 Wisco Flat Top pistons
* Rocket-Parts shot peened rods
* New "086" head
* LD2 4-2-1 header with 2" secondarys
* 3" collector with 2.5 Collector back
* 1992 NVG T-550 3.94 FDR Trans
* Ford Brown Top Injectors
* Tuner-Pro RT Tune
* 8000 shift point (J-body ECM wont go higher)

Suspension/Wheels/Brakes:

* GTZ black rims
* 225\50R16'

Interior:

* 2002 LS sport graphite seats
* no carpet

Exterior:

* Faded by the sun!

Future:

* Paint
* 75MM throttle body from a NorthStar
* Cut more weight
* T3O4E
* drag cars old set up.




Yes, I mean everything was plug and play, bend the PS line to work on the LG0\W41 P\S pump, and a bracket for the NVG...

Never said anything about a LD9/2.4....

Just trying to help... the 95 2.3...should be avoided, almost as much as a SOHC.


Chris






'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

Re: which fmu do i go with
Sunday, February 22, 2009 7:51 PM
The 95 does suck, i replaced mine with a real w41. Ands its almost boosted.
Re: which fmu do i go with
Sunday, February 22, 2009 11:26 PM
1fast 2point3 wrote:what do u mean everything was plug and play for ur 95, did u have a 2.3, and u are entitled to ur opinion some feel the 95 motor is better than the 2.4, it has a better flowing head, better cams, better oil system, both motors have their flaws though


Not to be a smartass but if the 95 2.3 has all of these better parts then why does it make the same 150HP the 2.4 does? It has a slightly better head but not nearly as good as an 086 HO head. The exhasut ports might be a little smaller than the 2.4 ports. The 95 2.3 cams are only slightly better than the 2.4 and you make more power with them in a 2.4 everything else stock than a 95 2.3. And last but not least the 95 2.3 has the same junk oiling system and ballance shafts as the 2.4.

The pre 95 LO motors have slightly larger cams and a different head and the better oiling system. they have 9.5-1compression. I think they are rated for 160HP? The 90-92 HO engines have better cams, a better head, intake and exhaust manifolds, same oiling system as LO, 10-1 compression, and 180HP. All of these motors will bolt right in and plug right up to a 95 cavalier. The only issues are if its an auto you would need an msd cam sync. Im pretty sure even the 2.4 sensors are plug n play. LO engines are easy to find and HO cams come around quite often in the classifieds and ebay. Put the HO cams in the LO engine and boost the crap out of it.

As far as your origional question goes the 95 ecm is a speed density ecu. Therefore if you buy larger injectors(none big enough from a factory car), get and tune for a 2bar map sensor, and use that ostrich 2 with the wideband and you wont need a fmu. The 2.4 manifold will need a new flange with the proper bolt pattern wielded on. All as Chris stated above.

Boost the 95 engine to start, then start building a pre 95 2.3, the turbo components will bolt up the same. Try to use an 086 head, ported of course, HO cams and intake. Like I said above the bottom end wont make quite as much of a difference in a boosted motor as long as its pre 95. The oiling system alone makes it worth while and the power difference should be night and day.





Re: which fmu do i go with
Monday, February 23, 2009 4:15 AM
i wasnt trying to be an ass, but i guess lots of people have mixed emotions about the 95 motor, i posted another thread saying i was about to swap the motor and everyone that commented told me not to and that it was a really good motor, but ok here is my next set of questions, do i need a whole motor of can i just get the 086 head, second, if i get the whole head or motor will i have to change the pcm or wiring harness or will the 95 harness still work, will it use the same trans that i have now. and im guessing i would not have a ps pump i would have to use the pulley right, does that still connect the same on the resevior


if it can't win a race it better win a show
Re: which fmu do i go with
Monday, February 23, 2009 4:24 AM
lol anyone know where i can find a reasonably priced w41, or H.O motor


if it can't win a race it better win a show
Re: which fmu do i go with
Monday, February 23, 2009 5:15 AM
1fast 2point3 wrote:i wasnt trying to be an ass, but i guess lots of people have mixed emotions about the 95 motor, i posted another thread saying i was about to swap the motor and everyone that commented told me not to and that it was a really good motor, but ok here is my next set of questions, do i need a whole motor of can i just get the 086 head, second, if i get the whole head or motor will i have to change the pcm or wiring harness or will the 95 harness still work, will it use the same trans that i have now. and im guessing i would not have a ps pump i would have to use the pulley right, does that still connect the same on the resevior



No, you asked it you should dump the 2.3 to get a 2.4, everyone said, "keep the 2.3, but run a older style 2.3"

WWW.CAR-PART.COM

FOR THE PS, YOU USE THE 90-94 PUMP, AND BEND THE LINE.........

Chris




Edited 1 time(s). Last edited Monday, February 23, 2009 5:16 AM

'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08


Re: which fmu do i go with
Monday, February 23, 2009 10:52 AM
Taetsch Z-24 wrote:

No, you asked it you should dump the 2.3 to get a 2.4, everyone said, "keep the 2.3, but run a older style 2.3"

WWW.CAR-PART.COM

FOR THE PS, YOU USE THE 90-94 PUMP, AND BEND THE LINE.........

Chris


This is true...i read that thread. To answer your questions you keep the wiring in your car and use it on any of these engines, same with your transmission. The 086 head and HO cams would be beneficial to the 95 engine however an entire engine would be better. The older non 95 2.3s had a better oiling system and no power robbing ballance shafts. You would also need the powersteering pump and brackets from an older pre 95 2.3.



Re: which fmu do i go with
Monday, February 23, 2009 6:00 PM
ok so me actually getting a real w41 or any other H.O motor is probably not going to happen very soon, so since i have to work with the motor i have until then, is there any advice u guys can give me with that. i only plan to run about 8 lbs, until i can get the w41, do u guys think that will be ok for a few months


if it can't win a race it better win a show
Re: which fmu do i go with
Monday, February 23, 2009 6:11 PM
Tuning as you already know, replace all the rod bearings (you can do this in car) and replace the oil pump with a Melling unit.

Chris




'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

Re: which fmu do i go with
Monday, February 23, 2009 8:27 PM
My engine was origianally from a 90 gtz beretta and its plug and play with very minor mods. PM if you want the details.
Re: which fmu do i go with
Monday, February 23, 2009 8:44 PM
Yeah as long as you tune right it will be ok for alonmg while.



Re: which fmu do i go with
Monday, February 23, 2009 10:23 PM
so ur saying the motor will be ok as long as i get a really good tune and dont crank up the boost


if it can't win a race it better win a show
Re: which fmu do i go with
Tuesday, February 24, 2009 4:10 AM
NO, Tune it well, AND....
Taetsch Z-24 wrote: replace all the rod bearings (you can do this in car) and replace the oil pump with a Melling unit.




Chris




'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

Re: which fmu do i go with
Tuesday, February 24, 2009 4:51 AM
so i can replace the rod bearings and the oil pump without taking the motor apart, or out, i dont really know whats involved in doing either of these since i never actually had to do it, but im a pretty decent mechanic, i have replaced the motor and trans (on seperate occasions) the flywheel and clutch, and the waterpump by myself, and i replaced a blown head gasket on another motor, so im guessing i could do it if i knew how, where would i find the rod bearings and the melling oil pump


if it can't win a race it better win a show
Re: which fmu do i go with
Tuesday, February 24, 2009 6:28 PM
.... AutoZone would be one place....


Get yourself a Service manual, timing the balance shafts is important.

Chris




'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

Re: which fmu do i go with
Wednesday, February 25, 2009 4:32 AM
autozone would sell an melling oil pump? and does anyone know the part number, which oil pump should i be looking for


if it can't win a race it better win a show

Re: which fmu do i go with
Thursday, February 26, 2009 4:51 AM
ok here is my new question lol, im guessing i can find the melling oil pump, but do i get one meant for an earlier H.o motor or one meant for a L.o 2.3.


if it can't win a race it better win a show
Re: which fmu do i go with
Friday, February 27, 2009 11:48 PM
.asdf,asdflaksdlgjksdl;


ONE THAT WAS MADE FOR THE 95 LD2.....

Chris




'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

Re: which fmu do i go with
Sunday, March 01, 2009 12:36 PM
ok thanks for answering the oil pump question, u have been a lot of help Taetsch, lol i know i prolly bugged the hell out of u with all these questions, just trying to make sure i do the right things


if it can't win a race it better win a show
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