2.3 stroker-traction-turbo question

[nrwtrn6492]

Hi I am currently building my stroker for my 1997 gst. My current set up is temperary but this is it.

100mm crank
scat rods
ross 9.0:1 pistons
acl bearings
arp everything
mitsu Multi layer head gasket
evo2 head
stock cam gears and of course evo2 cams

I just got openport 2.0 so I can flash a 98-99 ecu that I am using
I have a set of 1000cc injectors(just in case I want to go e85)

I am going to use my evo3 16g for break in and until I get bored and need more Power. I am courious to see how much low end power this will get me, but know traction will be a huge issue and I know that I will need a bigger turbo. I would like to get th 68hta but we will see what I go with I want a quick spooling street car. Daily driver through milwaukee and I do go on a decent amount of 50mile plus drives so I want to have the power quick.

The downside of that is traction and want to hear some of the things people have done. should I go all out lsd or use a phantom grip or something of the sorts. I got upper and lower strut tower bars comming. I have act 2100 clutch kit. kyb struts and unknown lowering springs. Do you recomend me doing anything more suspension wise or adjusting suspension stiffer or looser ect. any other things you found helped. Oh yes And I am doing DIY poly engine mounts also. Any input would be greatly appreciated.

thanks
chris

 

[FLASH1970]

I would look into getting an lsd for the trans. I'm sure Tim (Twicks69) would be more than happy to help you out with that. I also think a bigger turbo would be a good idea. That 16g is going to spool so quickly and break the tires loose on a GST especially on a 2.3 stroker. Some drag radials up front might help you put the power to the ground but I would look into a bigger turbo. Something along the lines of a 50 trim or maybe even an HX40. Yeah, it'll be more laggy, but the power will come on smoother and you'll have a better chance of getting it to the ground.

 

[95TalonOwner]

Definitely with that setup I would go full LSD in the trans. The extra displacement will slightly offset a bigger turbo if you put it on there. Anyway you go really it will be hard to get the power to the ground.

 

[TSiAWD666]

I just got my 2.3l dropped in with similar specs last Friday. I have a 50-trim ball bearing turbo, 2.5" i/c piping and hug apexi skyline GTR intercooler, and while I'm still breaking the engine in the damned thing is spooling around 3 to 3.1k rpm, where it used to not do anything until around 3.8krpm. I'd say you're definitely going to have down low torque fun

 

[nrwtrn6492]

Ok, so I will talk to tim about the trans, but I will not be able to throw down that kind of cash till june when I get another installment of my bonus from the army.

Now on to the turbo, I would like to bring my power band down as low as possible, but with the FWD I want to know where you think I would want that to be. We obviously agree that a 2.3 with a 16g is going to be very hard to control. I do not know If I want to go with a holset yet, I want a quick spool, but not too quick so that my tires are spinning every time i step on the gas. any other suggestions?

Is there any other traction type modifications I can do to help with traction? I am looking to put a decent amount of power to the wheels, but there are a few other things I need to get before I really start to put down the power. I still need guages ( borrowing a wideband for my tune) There also is plenty of other supporting mods I am sure I will need to get the most out of this set up.

thanks for input guys

I just got my 2.3l dropped in with similar specs last Friday. I have a 50-trim ball bearing turbo, 2.5" i/c piping and hug apexi skyline GTR intercooler, and while I'm still breaking the engine in the damned thing is spooling around 3 to 3.1k rpm, where it used to not do anything until around 3.8krpm. I'd say you're definitely going to have down low torque fun

This scares me when I think about my 16g. Ha 12 pounds of boost by like 2400 rpm or something crazy like that.

WHat are you doing for timing. That is another question. I have stock cam gears, did you advance or retard the timing at all when timing the engine?

 

[TSiAWD666]

I know some aftermarket ecus, motec I think, will let you have rpm and gear based boost control which you can use for tuning your torque down low. Works very very well in road racing.

My 2.3l has fidanza cam gears that are degreed for my forced performance fp4r2 cams but not played with beyond that. I only just got this engine base tuned yesterday and it has like 85 miles on it since startup. Gonna be a while for break-in before I can start extracting power.

 

[nightmares GS-T]

DSM link has boost by gear when you use that boost control solenoid right?

 

[DSMTyson]

I believe so.

 

[Robert Young]

one of the best things you can do in a traction limited FWD DSM is get some kind of traction control fitted, can be as s imple as a timer based boost control or as crazy as a ABS sensor based full on feedback traction unit from Motec, but some effort will go a long way in this respect. There are times you want the full trq hit, like for the 3-4 shift, and times you wont, like the launch and the 1-2 shift. Vehicle speed based traction control with gear recognition will be the best performing option. But dont limit your power because of traction, just control your power!

BOOSTON!
Robert Young