neu

I'm looking for a list of the parts you can use from a turbo II to improve an N/A,
not talking about anything forced induction, just some parts to upgrade... i read thru a lot of the archives, and didnt see a complete list, and i think it would be beneficial. if possible could you guys list some of the parts, and give a description of what benefits they would have? or maybe even a howto on them would be a nice addition... just a thought

i know these are good;

rotar housings
injectors
fuel pump
^
these are the only ones anyone really mentions, please help me come up with a complete list..
thanks,
alan

YearsOfDecay

Thats because... thats about all you can use....

Stationary gears are the same, e-shaft is the same... don't want to use TII rotors cause they are lower compression.. Stupid to use the irons cause they are 4-port.

Dan H

TII injectors and fuel pump won't do you any good if your NA is running on stock ports, or even a streetport.

neu

TII fuel pump would show a high RPM improvement, with just an intake and exhaust upgrade, and your stock injectors might not be able to hold up to the pressure, so it would be good to replace them aswell, or at least the secondaries.. if you're upgrading your intake and exhaust, why not upgrade the fuel system while your at it?

ddub

Because they don't need that much fuel, this has been discussed time and time again.

As for parts, the TII oil pump can be swapped in I'm pretty sure, TII front cover, TII intermediate iron could be nice during a rebuild, other than that the rest that does fit doesn't seem to serve much purpose replacing.

Full driveline, or TII tranny with mazdatrix hybrid driveshaft and N/A rear end can be used too.

therotaryrocket

yea but if you use turbo injectors and fuel pump than nitrous is an easy upgrade eventhough it is forced induction. you can use the brakes if you don't already have 4 pot calipers eventhough its 4 times the caliper pistons you have to push in which is a little harder. The hood can provide aluminum light weight and a nice scoop to do some extra cooling. maybe you can use the exhaust system because from looking under my t2 and my friends n/a the pipes on my turbo car look bigger. you can use the seats which are slightly deeper and i think they feel much better. I cant think of anything else.

neu

i dunno about that one, my n/a seems to go from rich on idle, to real lean at hi revs, so i read about the turbo II pump fixing that, and also swapping to the TII injectors for secondaries....

but dont know for sure yet, without trying it. i guess it would really just depend on the amount of modding you have done to it... i bet stock injectors would be just fine if i sent them off to be cleaned

bigdv519

iTrader: (3)

My NA went lean above 4k rpms...buts thats because of loss of compression and just plain and simple...an old tired engine. So far that's the only way I know of an NA needing fuel enrichment at higher rpms.

But, I mod my NA according to what it WILL have in it. ie nitrous. So I do see 720cc secs. (or TII injectors) with a Walboro and SAFC soon. I dont know of too many other things that are compatable that havent already been posted in this thread.

neu

mine goes lean about 5500 - 6000...who knows, but i will check it out

therotaryrocket

dDub can you show us where this has been proved time and time again?

ddub

Well I'll say this, I am much more modded than just intake and exhaust, including some port work, and all I've added to my fuel is a TII pump and still using the n/a injectors.

ddub

Use the search button, this has been asked way too many times.

neu

do you not lean out at hi rpm? maybe my injectors are just **** poor, but i will surely upgrade the fuel pump

ddub

I start to lean out about 7500 rpms on my s4 NA with 7k rpm redline, but it's still doing fine up to 7k. It's getting towards running lean, but it's still fine.

Soon I'm adding an S5 TII lower intake manifold with FD upper intake manifold and ported FD TB and will be throwing in some 550cc TII injectors as secondaries, though. But this is just because the manifold work may put me over the edge, plus I have wideband and an S-AFC to tune the injectors down, which will need to be done.

Now if you have wideband and an S-AFC then sure, you can add the TII injectors into your secondaries and tune them down to proper AFR's, but with no way to control the fuel and see what kind of mixtures you're running, the 550cc's will just hurt your performance most likely.

bigdv519

iTrader: (3)

I agree.

neu

i have an S-AFC and an air/fuel gauge, just *cough* havent installed them yet..?

anyone know where i can find a quick over view of howto install this S-AFC?

ddub

http://1300cc.com/howto/how2/safc.htm

Is your AFR gauge wide or narrowband?

RotaryEvolution

iTrader: (30)

i haven't seen this mention yet so i will add it in here.

S4 rotors are 9.4:1 compression
S5 rotors are 9.7:1 and lighter weight


S5 rotors make for a good upgrade in a S4 however if you swap them in you will also need the S5 front counterweight and S5 rear flywheel.

ddub

He asked for TII things interchangeable into an NA, that's probably why you didn't see those yet

neu

thanks for that link dDub, really appreciate that.

let me read up on installing this, not even sure yet what all parts i have, i pulled it out of my T2 parts car..hopefully i can get it working tonight... in the dark

neu

oh dDub, you know where to find a howto for an autometer air/fuel gauge?... lol

ddub

Eh, for that you don't need a how-to, here's the basics.

On the gauge run the power wire for the light and the power wire for the gauge into 1 single wire.
Run the ground wire from the light and the ground wire for the gauge itself into 1 wire as well.
Tap the single power wire you now have into a switched 12v source, a good and easy one would be the power wire for the cigarette lighter and it is easy to get to.
Ground the single ground wire you now have into any good ground, an easy one is the mounting plate for the shifter under the surround and all that junk.
Run the purple (I believe that's what the autometer one is) wire for the O2 sensor source out through a gromet in the firewall, I found enough to use on the passenger side where the AC evaporator has its runoff tube go through. Then tap that into the O2 sensor wire running from the O2 sensor to the harness.
You're done.

Icemark

Yeah I would say that your injectors are clogged or some other issue.

I am running around 165-170 RWHP/200 FWHP on a Non Turbo 13B and had to lean out my upper RPM to even get that much.

The stock Non turbo 460 cc injectors are good for 200-225 HP without any problems. And lets face it unless you are radically ported or running forced induction or nitrous 99.99999% of the time you would never need a bigger injector.

neu

thanks again dDub, and icemark.

RotaryEvolution

iTrader: (30)

oops, my bad, but you could toss in a set of 9.7:1 compression rotors, they are interchangable.