New to SHO's turbo advice

[SVOFANATIC]

I'm wondering what needs to be done to make a 1991 3.0 5spd SHO turboed? I've done a turbo swap on my stang but just wondering about this obviously an oil feed line and return line I'm mainly wondering about the pistons (cast or forged stock?) and the head and if I would need to lower the compression? If the engine is forged partially and I could boost it without tearing it apart what stress can the internals take? Also what others have had good use with in the past for turbo's?

 

[frosho]

Turbo SHO HOW-TO

Welcome to the forum!

 

[Phoenix]

I'm wondering what needs to be done to make a 1991 3.0 5spd SHO turboed? I've done a turbo swap on my stang but just wondering about this obviously an oil feed line and return line I'm mainly wondering about the pistons (cast or forged stock?) and the head and if I would need to lower the compression? If the engine is forged partially and I could boost it without tearing it apart what stress can the internals take? Also what others have had good use with in the past for turbo's?

The sho engine loves boost , you dont really need to play with CR unless you want crazy numbers like 600hp.

It can take about 4-5 psi good for 300 crank hp without changing anything , but you are maxing out the injectors. If you do this , You should really have a wideband installed.

If you want more , you need a tuner , bigger MAF , injectors , and the list goes on.

Many have done it , but most turbo shos passed their fair share of trannies. the 3rd gear strips leaving you on the curb.

EDIT: yes the above link is pretty much it , 100% explained.

 

[SVOFANATIC]

The sho engine loves boost , you dont really need to play with CR unless you want crazy numbers like 600hp.

It can take about 4-5 psi good for 300 crank hp without changing anything , but you are maxing out the injectors. If you do this , You should really have a wideband installed.

If you want more , you need a tuner , bigger MAF , injectors , and the list goes on.

Many have done it , but most turbo shos passed their fair share of trannies. the 3rd gear strips leaving you on the curb.

EDIT: yes the above link is pretty much it , 100% explained.

4-5psi :laugh_ti: sorry had to say it lol I'm so used to higher boost pressure like 20-25. But I understand with hyper pistons you can't push it hard. Injectors are no big deal what size are the stock ones and what would I need to go to? Wideband is no big deal that was on the list already Tuner would be the only thing I haven't used before.

 

[frosho]

The answers to most, if not all of your questions are in the thread I linked to above.

 

[Phoenix]

4-5psi :laugh_ti: sorry had to say it lol I'm so used to higher boost pressure like 20-25. But I understand with hyper pistons you can't push it hard. Injectors are no big deal what size are the stock ones and what would I need to go to? Wideband is no big deal that was on the list already Tuner would be the only thing I haven't used before.

I think you can hit 10-12 psi with stock pistons (Allthough I never saw melted/cracked SHO pistons yet- the tranny fails first hehe.) , but im no Turbo expert (my engine is highly modded NA with cams).
Stock injectors are 24 pounders , serious turbo'ers are getting some 48 pounders. Some of them fit in the fuel rail without boring the holes. You also need a fuel pump , a regulator because the stock one can hold only till 155lph.

Tuners , theres the Tweecer , then the Tweecer RT (this one datalogs) , then theres LPMs (chips with a specific program set for you) but you cant adjust on the fly , you need to return the unit for the guy to re-burn you another tune.

Those are the most popular ones. For the tweecer you can pay a guy here that will make a tune for you and adjust if needed. Or play with it yourself with a Laptop.

Theres a couple 600hp ones thats been made , you might wanna ask these guys. I guess Toolman is the man to talk to.

 

[91PDXmocha]

U boost 25 psi on a mustang hu ? Running 10's ?

5 psi on a SHO is a blast ! Search read and then search some more .

That being said , don't do it . Turbo Taurus's are the **** .

 

[91PDXmocha]

Less sarcasm if you weren't another " 1st post non-shalant I wanna turbo this new to me old ****** Taurus " guy .

 

[LOUDSHO92]

Well first we are working on a Turbo kit and the piping should be done very soon here: Thread

The kit is running 9psi and planning around 350hp at the crank.

In terms of getting ready you need:
Larger MAF, Lightening MAF works good
Larger Fuel Pump 255
Larger Injectors around 48lbs
FPR
You need a Tweecer. Do not use an LPM.

As stated you would only need to change the pistons if you go above 12-14psi.

We have most of the parts you need: SHO Source

SHONut has a large selection of pistons: SHONut

 

[SVOFANATIC]

Less sarcasm if you weren't another " 1st post non-shalant I wanna turbo this new to me old ****** Taurus " guy .

Yea that's understandable we do the same thing to guys on the stang forums I've got about 4k post between the forums I'm on. My stang is a 4cyl not a v-8 I like being the underdog and being a sleeper. I had to rewire my wiring harness and all it's a 2.3 boosting 20-25psi depending on what I'm doing with an HX35 with about 250-300hp the head doesn't flow well stock which really limits it.

 

[91PDXmocha]

Yea that's understandable we do the same thing to guys on the stang forums I've got about 4k post between the forums I'm on. My stang is a 4cyl not a v-8 I like being the underdog and being a sleeper. I had to rewire my wiring harness and all it's a 2.3 boosting 20-25psi depending on what I'm doing with an HX35 with about 250-300hp the head doesn't flow well stock which really limits it.

I'm on the mustang forums as well , I run a 4cyl swapped 90 with gt40 motor . Going to do twin snails on that next .

Just do alot of research alot of things that apply to mustangs do not apply to SHO's .

 

[Off Road SHO]

I had to rewire my wiring harness and all it's a 2.3 boosting 20-25psi depending on what I'm doing with an HX35 with about 250-300hp the head doesn't flow well stock which really limits it.

The head on the 2.3 not flowing very well is why you are seeing so much back pressure (boost). Put an Esslinger head on that engine and the same turbo will only net you 18 lbs of back pressure, BUT you will have pushed a helluva lot more air. Back Pressure is not a good measure of performance, but pounds of air moved (and used) per minute is.

Tom

 

[SVOFANATIC]

The head on the 2.3 not flowing very well is why you are seeing so much back pressure (boost). Put an Esslinger head on that engine and the same turbo will only net you 18 lbs of back pressure, BUT you will have pushed a helluva lot more air. Back Pressure is not a good measure of performance, but pounds of air moved (and used) per minute is.

Tom

I'll agree with you on that one but this car is on the back burner right now. SHO to go.

 

[luigisho]

That tranny ain't gonna hold captain!

 

[hawkeye18]

I'm fairly confident in saying 12psi on a SHO > 22psi on an SVO. The SHO heads flow better than most aftermarket Mustang heads. In the area of 330CFM IIRC.

Since you're an SVO guy and used to how clinically insane the guys on SVO forums are, can we randomly attack you for no real reason? (j/k)

 

[ycode90]

you cold run 9#'s forever on a stock motor just make sure it's got plenty of fuel and trannies .

 

[SVOFANATIC]

I'm fairly confident in saying 12psi on a SHO > 22psi on an SVO. The SHO heads flow better than most aftermarket Mustang heads. In the area of 330CFM IIRC.

Since you're an SVO guy and used to how clinically insane the guys on SVO forums are, can we randomly attack you for no real reason? (j/k)

:laugh_ti: That made me laugh my a$$ off HAHAHA I'm gonna pick up the SHO tomorrow as long as it's starting issue is fixed. I didn't get mad at anyone I just dont listen lol. Also thanx for all the replys guys this is a great help.

 

[Bob Gervais]

can we randomly attack you for no real reason? (j/k)

Wait, we're asking permission now? Kinda takes the fun out of it. Douche.

 

[hawkeye18]

Wait, we're asking permission now? Kinda takes the fun out of it. Douche.

Double Douche.