I am interested in a borg warner turbo. I have heard nothing but good things about them but they seem to be more of a big boys turbo. I am looking for something comparable to the t4 gt35 with a bigger hot A/R and is efficient at around 1 bar. I want to make 400 whp or close to at 1 bar. Motor is street ported. What Borg Warner series should I be looking at and what are bullseye and dsm (aftermarket dealers?)?

 

S362 = the win for what you want

 

What is the smallest A/R to achieve ~400hp at 1bar? I know there are many other factors but that is the only option I have seen on a couple websites that differs. Also who are some good dealers? thanks

 

S362 Has a T4 option with .83 and a vband

 

I think intense motorsports above sells these turbos. If not, www.paradiseracing.com sells them at a very good price.

 

I got mine from tec turbo its the ht-300 with 1.15 ar(s-300 from everyone else or R-85) and at 1 bar it made 417whp thru a hollowed out cat! so with the new 3" resonated midpipe im guessing its over 420 at 1 bar. Ray wilson (PFS) said its one of the best turbos hes seen for the street and if you want to push it a little more 560whp is available do a search for posts by blitzed33

 

sounds good.. so you all agree that the s362 fits the bill for my original description (I really need to learn how to read compressor maps)? I am usually a search monster, but does anyone have any more insight/info on this choice? There isn't that much information on this forum about them. thanks guys

 

what more do you need to know? look at R-85 its the same thing I know there are posts about that one

 

When I talked to bullseye and got my new center section was told S366

 

I have a R85 on a ported motor and the pull is very intense to me. It is not comparable in anyway to the to4r and the stock motor I had! I have 255/35/18 tires I cant drive the thing at 15psi unless I'm going 60+MPH, so I'm currently driving it with 11psi so I can actually enjoy the car till I get Tein flex suspension, toe links, trailing arms, and new rubber! Then I will turn it up, this setup is seriously fast to me. I can keep with or pass street bikes on highway, where I do hook...

 

s366 is fuggin awesome, but if he's really looking for more spool characteristics then the 362 will do great

i think lag is over rated but it's all in the eye of the driver.

i only sell garret turbos... yet i recommend the borg series!! AAHHAHAHAH!

 

The S-366 is an upgrade for the R-85! The R-85 has a 62mm inducer wheel the S-366 has a 66mm inducer wheel. The S-362 is closer to the R-85 but I dont think it is offered with the 1.15 a/r

 

I know if you contact bullseye turbo's and ask them about the RX7 turbo they should be able to give you all the specs on the phone. Dee is using a different turbo then he use to, I do not notice any lag above 3k rpm. At the top end this turbo really really pulls like the motor wants to go past redline, I am just amazed how its so different then the t04r I had!

 

well I've been looking at pricing. It seems the s362 is going for around 1200-1500. The non extended tip is going for around 800-950. Was wondering if the the extra money is worth it or not?

Also one site says it has a 4" v-band. Will adapting a 4 inch outlet to my 3'' dp cause flow problems?

 

bump

 

anyone??

 

I purchased a used s361 from a forum member a couple months back and have it setup and running on my car now. the turbo is a 1.0 divided and I built a divided manifold with 11 inch runners. Iirc boost starts at 2500rpm at 2 psi then at 3500 it is at 4 psi, at 4500 it is still less then 10 psi, and at 4800 it hits 13 psi (that is what my wg spring is rated for). By 5500 rpm it is down to 10psi and stays there until 7500rpm. My exhaust is 3 inchs back with a magnaflow steel cat and two mufflers. My ic piping is only 2.5 inches. I also pressure tested from the turbo outlet to the tb and there are no leaks.

There is a sound that is occurring in which I never have heard anyone talk about. After I switch gears or let off the gas under boost there is a loud (you can feel it loud) fluttering sound. It sounds like the wg spring is oscillating or something. Is that maybe compressor surge? This did not happen with a 5psi spring. wondering if the sound is normal for a big spring like that or if its tied into my lack of turbo performance

 

Sounds like that turbo is no good, or your cat is clogged/exhaust is too restrictive or your tuning is off. I was making 560 whp at 27 lbs boost by 4500 rpms on a non ball bearing borg warner 61.5mm turbo(essentially the same turbo as you) with a bigger 1.15 a/r(slower spool by nature) and this was before I upgraded to the 66mm compressor wheel. I was hitting your max psi at like 3000rpms or less. That fluttering is some compressor surge that you are hearing, I ran a greddy type RS bov and it was fine and I was running a 20 lbs spring. Even with my 10 lbs spring I was boosting max boost at like 3300 rpms

 

The 61 is not extended tip first of all, secondly with that kind of boost response either the gate is cracking open or the BOV maybe leaking.

 

My turbo spins nicely, has no oil coming out of it, and has no play. So I guess I have to have a leak somewhere between the TB and the motor. I do not have that one hole in the intake manifold blocked off next to the turbo coolant source of my t2. It does not have a vacuum while running so I assumed it does not blow air out. Does anyone know if that is my problem?

thanks

 

If you had a leak that bad, you would hear it while under boost most likely. Again, your turbo can spin all day long and have no play, but if something like your cat is clogged, you will not make any good power and your boost will be really slow and laggy. The turbo may still not be good as far as being balanced, etc... Tuning can also be a source of laggy performance, Ray at PFS made some adjustments down low in the VE tables and timing and managed to get a decent amount of lower rpm spool. Check basic things like vaccum leaks etc.. check your blow off valve and wastegate like someone else mentioned...unlikely, but I was running a Greddy Type RS bov and the rubber diaphram is rated at 22 lbs, but I was running close to 30 lbs and eventually it ruptured and was leaking boost and I could only manage 15 lbs while it was suppose to be running 25 lbs where I had it set, but you could defintely hear it venting out of the bov while under boost or if your wastegate is not sealing properly, it will be leaking exhaust gas energy and cause laggy lack of boost. You need to take it someone who can take a look at it if you cant figure it out and good luck.

 

That turbo is in perfect condition because I sold it to him. Other than the problems how does the turbo feel stugot? I wish I was able to run that beast

 

The turbo is awesome charlie. I am using the 13 psi spring you sent right now and It is pretty insane in this gsl-se. I am yet to experience the mid range due to a leak and it still needs a little tuning. I have no idea how much power I'm making but 5000-7500 rpm it pulls like crazy. I lose traction up until 4th gear with these stock wheels and rubber. Are these turbos supposed to make a loud spooling noise? It makes noise even while approaching boost. Its pretty loud so I was thinking that I do in fact have a leak somewhere.

 

Beauty of the anti-surge

 

Anti surge will sacrafice some but very little spool time...but my borg warner sounded so sweet when it started to spool with the anti surge