tito1324

so this is my first real build, i currently have a b18c block already got it sleeved by golden eagle..i just ordered:
84mm cp pistons
Manley rods 9.1 compression

I'm trying to get the expensive stuff out of the way then focus on the head.
i'm at the point where i want to order a turbo to get it out the way and my cousins local tuner d3 said go with a borg warner s300 (i'm shooting for 450-500hp)

my question is have any of you guys used this turbo or have any knowledge to how that will work out..
exactly what model borg warner s300 should i go with, because it looks like there are couple models.

TomCat39

This question is better suited for the guys in the Forced Induction section.

Moving the thread there.

TheShodan

iTrader: (14)

I'm sorry, I had to clean that up a bit, as it was rather confusing. This was really for other people to quickly read so that they can contribute more effectively.

If this is 400-500hp to the wheels., your tuner at "d3" is thinking way too large for such a reasonable goal and use. I don't recommend that size at all.

You need to really focus on the purpose of the car: Street/strip? , Torque monster street? Circuit racing? a combination of both?
What's your budget to spend on a turbocharger only? (no "don't wanna break the bank" answers.. that's lunacy... Have a maximum willingness to spend on a turbocharger.. a real number )
Are you settling for a used unit? or a new unit? What flange? T3? T4?
What exhaust manifold are you using?

Then, answering these questions help you (and us) answer the other questions you may have in mind (i.e. max rpm? what's the displacement after GS-R crankshaft, LS crankshaft? etc?) then you can see what size family to go with.

Let's start with those areas first, then worry about if "d3" is in the right ball-park. I'm willing to gamble that he/she is not.

There are literally hunderds of options to choose from.

tito1324

so the plan is the have this as a sunday drive car so i guess street/strip but at the same time a torque monster. i'm not really on a budget i have a decent income. as to what flange t3 or t4 i am going with a ramhorn manifold so i'm guessing that's a t3 and i'm sorry i am still learning on some of this stuff. no i don't want a used turbo charger,i want a new one. as to the crankshaft i am going to use the stock gsr because i heard it was a good strong one. i don't want a turbo that will max me out at 500hp i want a turbo that if i ever in the long run want to turn it up to 600 i would be able to.

mayfly

tito1324

i'm going to go with a t3 flange and don't want to rev the hell out of it..i don't want the turbo spooling to soon or to late kinda something in between. the goal is 450-500 hp. with stock gsr crankshaft.

TheShodan

iTrader: (14)

Excellent points, Mayfly, although I think 500-600whp can be done on the same turbocharger and same engine, but not with a ridiculous sized S300.
Tito1324,Please check the great, (and well-organized) FAQs in the grey highlighted areas at the top of the forum.

tito1324

which brings me back to the question of what t3 flenge turbo to go with..i was thinking the borg warner s300 but from the sounds it isn't my best choice..anything that you guys with experience can recommend?

TheShodan

iTrader: (14)

tito1324

i don't want to spend more then 1200 on the turbo charger and going with a ramhorn manifold

mayfly

Give these guys a call. Speed Trapp Consulting

I hear they really know turbos

hondatech8798

iTrader: (2)

Stc reaper can get it done I'm sure theshodan can point em in the right direction ��

tito1324

i'm going to give them a call right now and hear what they have to say

Chance EG

Garrett GT/GTX3076 would be ideal for you, but probably slightly out of your price range. This would be my first choice.

If you want to stick with a BW turbo, an S256sx with open T3 housing would probably be good for a little north of 500WHP (I'm not as familiar with these but I think 550+ may be a stretch). 62mm S300SXE could also be an option but would be overkill for 450->500.

^Based on 5 min of google searching, so I'd encourage you to look up some stuff on your own, but that's at least what I'm thinking for now.