cds00bsmg

iTrader: (1)

I've searched, and read, and feel I have a rather qualified knowledge of what to do to reach my goals. Most seaches here detail swaps, which is not what I want to do.

I just want to get some input, and maybe someone can point me in the right direction of any other forum members who have done something simmilar to what I am proposing.

The car is an 85 GSL-SE, bone stock, 130k on the motor, good compression, new factory clutch. A/C is entirely removed, and will never be re-installed.

I have done all of the basic maintainence, freshening, etc. All new fluids, new brakes, new suspension components, etc.

I'd like to get more power out of the factory motor without doing a swap, and retaining what I can of the factory equipment.

The initial plan is to use the factory GSL-SE intake manifold, block the emissions off, remove and simplify the other emissions parts, rats nest, etc.

I'd like to use a tubular manifold purchased from EBAY, or some other source, and use an external waste gate. I'll fabricate a 3" exhaust, without any catalytic convertors.

I plan on only using the factory 2 injector setup. I'd like to use megasquirt to control fuel and spark. Walbro 255lph pump for fueling. To upgrade the ignition system I want to use the FC CAS and coil packs, etc.

My goals are to run 6psi daily, and 8psi sometimes, using 93 octane pump gas. I do not intend to run any higher boost until rebuild of the motor, or replacement of the motor for something different. Power goals are 200 at the flywheel.

My questions are the following:

What turbo selection would be the most cost effective, and efficent for the boost levels, utilizing the T3/T4 flange that most aftermarket manifolds come with?

Will any of the common aftermarket tubular turbo manifolds clear the GSL-SE intake manifold, or will a spacer still need to be utilized?

What are the largest fuel injectors that can be used in the factory housing location, using only 2 injectors?

If 1600cc injectors can be used, will that be sufficent for what I am planning on doing, or what is reccomended? (Considering 4 550ccs are barely enough for a stock Turbo II.)

Are there any other suggestions, or reccomendations? My goals are to get close to stock 12At or FC 13Bt levels out of the motor reliably without threat of failure. I also intend to utilize a FMIC and boost referenced FPR.

Any suggestions, feedback, etc. is vastly appreciated.

Thank you in advance,
Chris-

theNeanderthol

iTrader: (1)

Injector Dynamics makes great injectors for something like this. They are large injectors that don't have the some trouble as your average big injector at idle PWM levels. Unfortunately I can't help with your other questions without only speculating...

Directfreak

iTrader: (2)

You seem to have a good plan and a good vehicle to start. In your shoes, I would do the following (Old School 90's Style).

1) Swap the intake to a 2nd Gen N/A intake (room for total of 4 injectors)
2) Keep stock GSL-SE Injectors and ECU
3) Upgrade Fuel Pump
4) Run a secondary line for additional injectors (Stock 2nd Gen fuel rail)
5) Buy an AIC (additional injector controller) - Tune AIC for boost only.
6) Keep exhaust relatively small - no larger than 2.5 inches
7) Preferably use stock S5 Sized Turbo
8) If you plan to boost over 7(ish) PSI, then lock distributor as well.
9) Keep the six port actuators, and open then with boost pressure.

This should give you main details to run a good, reliable and
safe - 180-225 whp. It's very much like a Cartech GSL-SE system.

The car will drive like stock off boost, and be a scalded cat
on boost. It will be quick, torquey, nimble and fun.

If you decide to want more power (like most people do, eventually) - then
you are better off with a full engine swap that can support it safely.

cds00bsmg

iTrader: (1)

Thanks for the input (from both of you.) I may eventually want more power, but at this point the next phase of the car would be relatively serious body work. (It's not bad, but it's no gem.)

I considered swapping to the FC N/A intake manifold, (as well as CAS, etc.) In doing so, how much of a PITA would it be to just run a S4/S5 ECU and then get a RTEK installed? Wouldn't that tackle the tuning issues a little more effectively than MS for tuning? (Since my initial goals are not that substantial.)

As previously stated, the initial plan was to get 12AT power out of it, or make as close to a CARTECH setup as possible. (Since sourcing an original GSL-SE setup is somewhat difficult and costly.)

Anyone have any input on the aftermarket turbo manifold? I'd really like to not utilize a S4/S5 stock turbo manifold even though it may be more cost effective initially. I know in the past Rene at RX3Mist made custom manifolds for a decent price that could utilize the stock turbo's though.

Thank you once again!!
Chris-

81WideMariah

iTrader: (8)

RX3Mist doesn't exist anymore, it is now Rotary Works. DF gave you the whole shopping list there. Using an AIC will save you a ton of headache and time with wiring, tuning, and money. It really wouldn't be worth all the trouble and headache to run an S4 ECU and harness.

I would recommend staying away from any of those E-Bay manifolds, they are made with extremely thin wall stainless and are prone to cracking pretty easily. You can run a stock T2 turbo, which will do everything you are looking to do and not break the bank. You should be able to find a good used T2 turbo and manifold for around $150 all day.

Your posts are kinda conflict, in one you're saying you want to keep the set-up simple, but on the other your saying you're going to run Megasquirt and a T4 turbo. You really don;t want a turbo as large as a T4 if you're only going to be running 6 pounds of boost on a regular basis. You'll have a much more responsive and fun to drive car with the smaller T2 turbo.

Take what DF told you above and run with it.... trust him, he's been there done that, wrote the book, bought the t-shirt, and posted a tutorial about. He knows what he's talking about..

cds00bsmg

iTrader: (1)

I picked up a S4 turbo manifold off of ebay, and will be making a spacer simmilar to aaron cake's setup to place the turbo away from the intake manifold. I've been daily driving the car and have decided to now move forward with the project.

I know there is a fellow team member specifically in the first generation section that has turbo charged his GSL-SE, and I wondered in anyone could provide his SN so I could read on some of his posts (searching has not yielded what I am looking for.)

Thanks for the info.

bumpstart

http://www.ausrotary.com/viewtopic.php?f=8&t=201375

there is a link to some of one of my builds
( turbo GSL-SE motor , s4 turbo into a b2000 with LPG mixer )

though its LPG
you can take a hint from the dizzy mods
and mods required to fit a turbo 2 LIM
but also the coolant routing for the turbo

i often do these hybrid 6 ports ( though usually with s4/5 engines )
and i find the t2 LIM flows more , fits the standard turbo manifold
and the switching of the aux and secondaries can be controlled if you choose the early s4 TB with vacuum delay mechanism

Chevsica

Look at post #3.

cds00bsmg

iTrader: (1)

I've checked out DF's stuff, I believe he is running a full TII drivetrain, or an FD/Cosmo motor at this point.

I'm looking for a forum member here who basically just installed a turbo onto his GSL-SE, upgraded the injectors, and is running some sort of fuel management.

I'm considering attempting to run just two 800cc + injectors, a stock S4 turbo and manifold, and 6psi non-intercooled, until I can do anything further with the car. The body is not 100%, and I'd like to initially do a minimum investment build, without killing the motor. This is more for fun, at this point given the initial price of the car was under $500.

BTW, who is producing the emissions block off plates for the intake manifolds now a days? Thanks!

Chevsica

Sorry man. Guess I should have done my homework before I posted!

che'srx-7

iTrader: (5)

just what i needed