Blk 93

I know a number of owners have gone from NT to Turbo, and it probably seems pointless to most owners, but in the interest longer engine life in exchange for a performance hit, has anyone done this ?
I'm wondering what would be required besides a Non Turbo ECU, intake and exhaust manifolds, and 460cc injectors? Which sensors would have to be changed ?
I'm guessing a whole NT engine harness would need to be exchanged along with NT sensors.
I'm aware performance would take a pretty big hit due to lower turbo compression ratio numbers, but I just want to explore this anyways.

I'm also wondering if anyone has pics of a Turbo or NT ECU FC 13B circuit board ?
I tried searching + Googling without success.

Eple

that just seems like a complete and utter waste of time. Just go out and buy a beater n/a FC if you want "reliability."

dothacker

now, why would you do that?

slpin

iTrader: (9)

just run turbo everything,,, ecu what not, but on a na block and mani and what not.... just find someway to run the aux and vdi
a turbo under non-boost is still a na...

walken

iTrader: (6)

remove the turbo
install a header or exhaust manifold
block the turbos old water and oil lines

enjoy your slow FC.

if you really want reliabilty. rebuild your engine, replace all gaskets and hoses, and buy new injectors. maybe even get a r-tek 1.5 ecu. then the only mods that should be installed are a upgraded radiator, 2.5" coated or wrapped downpipe, and a K&N drop in filter.

SpeedOfLife

iTrader: (16)

it'd prly be cheaper to just buy a NA RX-7 than properly convert a turbo to non. that, and who drives an RX-7 for gas mileage or 'reliability'? ...as ambiguous of a word that is for the RX-7...

arghx

iTrader: (3)

well there are definately 4 port nonturbos around here. many are carb'd

The Shaolin

iTrader: (5)

Wanna trade engines?

InGroundEffect

If you run your Turbo as a NA you will also be down on power. The turbo is lower compression and will not run very well as a non turbo.

If you want longevity out of the car put in a Manual boost controller and set the maximum to 1psi. That will be very much like driving a NA Car.

Like was said, if you really want a Non Turbo, Buy a Non Turbo and sell your car.

WrEcK-LeSs

I bought a car off a guy who was running the turbo motor, non-turbo rotors, and a streetport, he used the turbo injectors as secondaries,non turbo primaries, and ran an afc. He claimed it made around 200whp.

p4nc7

iTrader: (1)

^Lots of people run N/A rotors in a turbo motor, higher compression.

+1 to buying an N/A seven though.

simoncbrr1

wait! who says turbo motors arent reliable?????

InGroundEffect

How many Turbo cars exist with over 200K miles on the original motor? Most seem to die around 100k miles. I am sure ther are also numerous NA cars with over 300k miles on the original motor.

Mine lasted to ~280,000 miles. Would have gone longer had I not tortured the poor thing every day of its life.

liquidblackracing

iTrader: (3)

ummm he was being scarcastic ...

FrankV702

iTrader: (14)

That is defintly 100% wrong. You cant get a manual boost controller or any boost cntroller for that matter and lower the boost down to 1psi, unless of course your spring on the wastegate was 1psi. Then that would defeat the purpose of a boost controller.

farberio

iTrader: (7)

My friend is making 197 whp with a Turbo Motor, non turbo rotors, and a really large streetport.

Craiger

iTrader: (1)

You beat me to that!!

As an idea, if you wanted to effectively eliminate your boost I have been told that if you disconnect the little rod on the side of the turbo that opens the wastegate from the than the flap for the wastegate should just open up right away and produce little to no boost. I have not tired this so I have no idea how good it works or if it even does but if you really wanted to get rid of the turbo that would be a quick fix.

As well... it would be interesting to see how long a turbo would last being driven nicely. Let's face it, the biggest reason why the turbo engines don't last is because people beat the **** out of them!!! The stock comp running it dangerously lean dosn't help much either tho!!

InGroundEffect

Yep, sorry. Has been a while since I had a Turbo car and did not think that statement through. I am use to operating in a Vacuum.

Sorry, Missed the [Sarcasm][/Sarcasm] Tag.

Snack

If you're really an Rx-7 lover... keep your car turbo and buy a nice N/a. Just save up for a rebuild and rebuild the turbo car for reliability to enjoy on the weekends etc. If you N/A your turbo car, this would be considered the biggest massive truck of fail modification ever

simoncbrr1

Hmm guess i need to work on my sarcastic skills...... Bottom line is this guy probably just bored as hell, at work (i know i am) and just posted the first thing that came to his mind! Hey farberio! i have a Scion TC too! Dont you ever wish you could trade it in for a third gen? I mean soon as it hits 3k, its like someone hit the brakes or somethin.

cds00bsmg

iTrader: (1)

it's been done, its a waste of a perfectly good car, but I've seen Turbo II's with N/A motors swapped into them for sale....

helghast7

iTrader: (6)

if yours is in real good condition we can trade i have an 87 n/a runs like brand new. im not even kidding, stock motor no work to it 85k on it 110 psi compression on both rotors clean with a capital k.

SpeedOfLife

iTrader: (16)

I could see someone swapping in an NA motor if they can't afford a turbo motor or some such, but MAKING an NA out of a turbo motor, that's madness...

Jager

iTrader: (10)

Just buy an NA, that way, you keep a TII on the road to someone that can afford it.

djmtsu

iTrader: (3)

Didn't someone a few years back build an engine with a turbo 4 port block, S5 NA high comp rotors, a huge bridge port and a Megasquirt and get way over 200hp to the wheels?

I thought it was.......damn I can't freakin remember.