which turbocharger should i get

What turbo should i get for my 97 gst? Im looking for a 18 or 20g that is reliable.

What mods you have so far?

so far i just have an exhaust, body kit, rims, and air filters. Its in the shop getin painted right now and as soon as thats done im getin alot more stuff i just dont no what yet but i have 10 thousand saved up to spend.

body kit and rims huh?
ok I personally dont think you are ready for a 18 nor 20G.
but If I had to choose between the Ill go 20 cuz its like $100 more, so why not.

cant just bolt-on a turbo by they way, its much more complicated

Ya i no u just cant put it on thats y i put a post on here. I want to know what else il need to make it run right?

off the top of my head
boost gauge, EGT,intercooler piping, blow valve, front mount intercooler, fuel pump(255lph), injectors(660s), fuel management, hmm yea thats the basics
and a clutch, stock clutch should start to slip.

I saw a 25g turbo on the internet i thought 20g was as big as they get? well anyway im thinkin about getin the frankenstein level 2 turbo.

Ummm......yea...Do you want to know what I have to support my 50 Trim Garrett? (In between a Frank 2 and Frank3)

Full 6-bolt swap
FMIC 2.5" IC Piping
Ported manifold and O2 housing
2.75" Turbo back exhaust
720cc injectors
Aeromotive AFPR with all -6AN braided fuel lines
255lph fuel pump
3" Intake pipe
Web Cams
Clutchmasters 2500lb clutch
Turbo XS BOV
Hacked MAS

To make all that work I use
Boost
EGT
A/F Gauges
Datalogger
AFC and ITC

I run on drag radials to boot

Unless you really really know what you are doing, do yourself a favor, start small with an FPBig28 and go from there 320+ whp should be enough for you.

That sounds like a bad ass car. How much was it for all those mods and whats ur fourth mile time and speed? Do u run it on the street? if u do i bet ur gas milage isnt to good lol. I might do mine like urs.. thnx for the help. And oh ya is ur turbo reliable (like will it last a couple years?)

I haven't had a chance to take mine to the strip yet, I think I could probably break into the 11's on pump gas with slicks and good driving. As far as cost goes, I have probably spent 7-8 grand so far. I get about 27mpg on the highway and around 23 in town. If I drive balls out all the time though, I get about 15mpg:eek: My turbo will easily last a couple years, you just have to take care of it.

Thats awsome i thought ur mpg would b like around 10 or sumthin with those injectors. Having an 11 sec car that u only spent 8 thousand on aint bad either.

I wouldn't have your heart set on those 11's, especially on pump.

Well Buschurs Car broke 10's and cost about $10k, but the car was virtually naked. The 20g is capable of 10's but you must Tune your car properly. Some people think that slapping on a massive turbo can get you into the 10's. (T66) No that won't happen, of course you could just turn up the boost and blow you engine to bits. Start small, little by little.

Intake, exhaust, ports work, Fuel pump, Boost Gauge, 02 Sensor or A/F Guage. Boost Controller, and clutch. Thats good for low-high 12's depending on driver and car.

What would be the highest safe boost for my stock internals?

I'd say 12-15 without high-flow Fuel pump
15-20 with fuel pump. After that its up to you how much you are willing to risk it, don't go too close to 400 though. BOOOM Baby

If u have a boost controler can u turn ur turbo off?

A boost controller doesnt turn the turbo on and off, it just regulates it so that it produces the amount of boost (x psi) that you want.

P.S. Spectrum I built my fuel system to be able to run as much boost as I wanted on pump gas. In my car, adding race gas wouldn't allow me to run up the boost, I run 26psi on my 50 Trim on the street. Race gas really won't help until I start running a high compression motor and I need the extra detonation resistence offered by a higher octane fuel.

I ment can u turn ur boost to 0 psi?

No, the lowest boost setting you can have is the psi that opens the actuator itself. On a DSM this is around 11-12psi. If you get an external wastegate or a different adjustable actuator you have different spring options that would allow you to set boost as low as 5-6 psi. But again, with a DSM boost is meant to go UP not down.:biggrin:

Peace

what psi do u put urs at when ur just ridin around town?

Mine is set at 25-26psi, but that's because I have the supporting mods to do that. For a more stock car 14-16 is good. Once you begin to upgrade you'll get a better feel for what you can run on your own car.

Peace

Your best bet is to maximize the stock turbo first, and upgrade it when it eats shit from being over spun. Most people already listed the mods, but its all about air in, air out, fuel to match, and appropriate tuning devices. I use DSMlink myself. People run 11s all day on stock 7 bolt internals, but know that you are pshing it and one mishap in your tuning and things can get ugly. But its been done for years. :wink:

to aves911, your mod list sounds good. 11s on pmp would be a no brainer for AWD, and I'm sure you can do it as well. Another reason to run race gas though is to raise timing. How much advance do you get on pump? out of curiousity...

Originally posted by FourG63 97GST
What mods you have so far?


A: body kit and rims :rofl:

Well,

Currently I get 19-20 up top, but I just realized that I have some pretty significant boost leaks. So I'm hoping that once I get those fixed, I should be able to get 22-23 degrees at redline. I was seeing 26+ on my old big16G. But obviously with the 50 Trim its a little harder to battle detonation:)

22-23 sounds good. 26 is a bit excessive for a 50 trim, but makes for a fun ride with a smaller turbo :wink: Good luck with it :smile:

u guys put alot of psi in ur DSMs. for DSM stock cars, how psi do u think it'll need to make hit like mid 13s, high 12s, witout mods, jus a boost-controller?? my cuzin has a 92 Talon Tsi AWD, he has i think 11 or 13 psi on it.:bigthumb:

You can't hit high 12's with just a boost controller and unless you are the best driver in the world, I doubt mid 13's are possible either. At a bare minimun you'll need a fuel pump and race gas crank the boost up to 19-20 psi on your 14b and drive like a professional and you could hit mid 13's high 12's.

What I like to use as a yardstick for how much you need at the bare minimum, are a couple local 1g cars. Exhaust, filter, boost controller, and hacked mas has run high 12s. Fuel control will almost make it a no brainer, but I've seen it done without. And yes, you will have to drive flawlessly... :wink: But its possible. Most poeple will run 22-24 psi on the stock 1g turbo with race gas (112 or higher). Leon Reitman just did 11.84 on a 14b, and Phil Beers ran 12.0. A bit OT, but just to illustrate the potential.

There is definetly alot off potential in the 14B, just because it came stock doesn't mean it sucks.

I know the guy who held the world record for the T25 at 13.411, now hes .007 off the W/R. I see 20G's and even super 20G's running slower