Ryanx0r

Hello, yes I know my account is new, I've been a lurker here for quite a while though.

Anyways, I'm torn between buying a Bullseye T3/T04E 50 Trim .55 A/R or a Garrett T3 Super 60 42ar/.48ar. The engine is a bone stock D16Y8, with Hondata S300, 440cc Precision injectors, Walbro 255lph fuel pump, Tial 38mm wastegate and Tial 50mm BOV. The manifold is an a/c compatible tubular log style manifold. 2.5" exhaust all the way back. I'm only looking for 215-220 whp daily driven for now, until I get another D16 block to build up. So the question is, which turbo would I be better off with for now and what would the difference be between spool times on these two turbos? I would rather not have the boost drop off at the higher RPM's (7k) but I do not want to wait until 5k RPM until i see boost.

ralph11sec

both will be good for your application. i'd go with the bullseye t3t4. it has more potential in case you wanna boost that thing higher in the future.,

Silva Bullit DC4

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ryanx0r &raquo;</TD></TR><TR><TD CLASS="quote"> I would rather not have the boost drop off at the higher RPM's (7k) but I do not want to wait until 5k RPM until i see boost.</TD></TR></TABLE>

Yes, the T3/T04 Borg Warner will be the better choice here, but the standard T3/T04 BW's come with a stage 5 exhaust wheel, which will hurt spool time dramatically, especially on a D series motor of your goals. if you pruchase this unit, check the wheel, and if it has a stage 5, I'd recommend installing a stage 3 wheel on it.

I have the exact same turbo, and I sent to STC (Speed Trapp Consulting), and had the stage 3 wheel done, and it opened up my stock LS motor like a can of expresso! I run 12 psi, and I see full boost at 3800 rpm's, and pulls hard all the way to redline (7k).

If you dont wanna go through the wheel change, I'd suggest a Garrett T3/T04E 50 trim, which comes standard with a stage 3 wheel.

robx7fcna

Good to see some people on here running the BW T3/T04E's

How do these T3/t04E units with the stage 5 wheel perform on a built B series looking for 400whp+? what is your powerband like? (spool times, boost transistion)

Most people I know are using the stage 3 wheels, but I am sure there is a bit more power to be had with the bigger turbine, am I correct?

Reason asking is that I also have a BW T3T04E 57trim with a stage 5 wheel, on my piston/rod/built head B16a.

HiProfile

IMO a stg5 wheel is a bit large for 400whp and below. The larger turbine wheel will make more power per PSI (less backpressure), especially near redline, but as mentioned it will impact your throttle response & spool time more. With 15psi or so you can push the 60trim T3 to 300whp, depending on the setup. I've seen 350whp with that turbo on pump gas, but that's pushing it.

Cliffs: get the 60trim, especially if it has the stg3 turbine. The 50trim/stg5 is a bit too large IMO.

TheShodan

iTrader: (14)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HiProfile &raquo;</TD></TR><TR><TD CLASS="quote">IMO a stg5 wheel is a bit large for 400whp and below. The larger turbine wheel will make more power per PSI (less backpressure), especially near redline, but as mentioned it will impact your throttle response & spool time more. With 15psi or so you can push the 60trim T3 to 300whp, depending on the setup. I've seen 350whp with that turbo on pump gas, but that's pushing it.

Cliffs: get the 60trim, especially if it has the stg3 turbine. The 50trim/stg5 is a bit too large IMO.</TD></TR></TABLE>

Yep. this is precisely what Silva Bullit was referring to. This is an issue with these turbos for 1.8 litre hondas under 400whp.

Ryanx0r

Thanks for the help guys. I've been reading as much as I can find on compressor maps, trying to figure out the best application for my goals (current and future). I'm probably going to end up going with the T3 Super 60 more than likely. I was unaware of the stage 5 wheels on the BW/Bullseye turbos, thanks for the warning.

TheShodan

iTrader: (14)

It's not a BAD thing on the BW, please don't misunderstand, just not a great standard on our applications, considering the turbine wheel. once the turbine wheel is changed to something a bit smaller, it works just fine. Please remember A t3 60 "trim" and T3 "SUPER 60" are 2 completely different turbos.

spoolin turbo s

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">It's not a BAD thing on the BW, please don't misunderstand, just not a great standard on our applications, considering the turbine wheel. once the turbine wheel is changed to something a bit smaller, it works just fine. Please remember A t3 60 "trim" and T3 "SUPER 60" are 2 completely different turbos.</TD></TR></TABLE>

isn't the "super" 60 actually a turbonetics turbo only

TheShodan

iTrader: (14)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoolin turbo s &raquo;</TD></TR><TR><TD CLASS="quote">

isn't the "super" 60 actually a turbonetics turbo only</TD></TR></TABLE>

No. that was a Garrett original design. For many years until about 2001, Turbonetics used to be the only way to get Garrett products to the public, until Garrett decided to release directly to the public in 2002. since then, Turbonetics uses components made from facilities other than Garrett or BW. They have their own designs.

robx7fcna

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">

Yep. this is precisely what Silva Bullit was referring to. This is an issue with these turbos for 1.8 litre hondas under 400whp.</TD></TR></TABLE>

Yeah, I kinda figured that when I was looking into buying one of these, but for the price I thought it was worth a shot.

I am going to see how it is (drag car with a built head so the B16 is quite rev-able.) If it doesnt work out, I will most likely be talking to you (Shodan) to swap to the smaller wheel/housing.

I would like to hear from people that are running 400whp+ on B-series, if there are any out there.

TheShodan

iTrader: (14)

Not with this turbo combination. That is where the silver surfer comes in.