MikeySpec

Heres a quickie back to back test of a BWS366 vs. a t3 60-1


The engine is a b18a with the following...

S300 on precision 1000's - 93 octane
Je pistons, eagle rods, Supertech valves, valvetrain and BC stage 1 cams. Stock cast head w/ blox intake manifold and 68mm cast throttle body. The turbo kit is basically a peakboost turbo kit w/ 38mm tial wastegate.



Blue line is the s366
Red line is the t3 60-1

Boost was a max of 17.2psi on the s366 and a max of 17.8 on the t3 60-1. The owner of the car is now alot more happy to have some sort of powerband.

TheShodan

iTrader: (14)

Which turbine housing and exhaust wheel for the S366? the 60-1?

MikeySpec

Housings....

.70 on the s366
.63 on the 60-1

As far as wheels go i am unsure. As far as i know there were no special wheels ordered for either turbo.

tagperformance

interesting who made the 60-1?.

MikeySpec

Maybe i should've mentioned that....its a Garrett 60-1.

extremeracer

Interesting that the S366 spooled quicker giving a better powerband but made NO difference to the peak Power or Torque numbers...

60 lb/min vs 75+ lb/min Turbo at the same boost

Wierd

joe111599

Im seeing the 60-1 spool quicker...the 366 is the blue line. Am I wrong??? lol

MikeySpec

Other way around.....

Schister66

Push those turbos harder and you'll start to see the S366 shine. This comparison doesn't make a ton of sense to me...its like running a GT35r against a 57 trim and saying the 57 spooled faster...no surprise there

MikeySpec

Its pretty obvious that the larger turbo will make more power at higher boost levels and has more capacity.

This comparison is for guys like this kid who brought me a car that some guys with bad turbo choosing abilities built for him. His goals were 400whp on e85 with a little room to grow in the future. He didnt like the way his car felt with a big lazy turbo and also didnt want to sacrifice much power when downsizing. Now he's happy. Hooray.

JDogg

you guys have to remember that its a stock LS head..

the turbo can flow whatever it wants but the fact is that the head cant flow more air at that boost so as long as the turbo can keep up w/the head the power will stay the same.

put a vtec head on there and you'll see the s366 make WAYYYYYY more power at that boost level than the 60-1

TheShodan

iTrader: (14)

There are different wheels given for different housings. The S366 in the .70A/R Frame uses a 80mm exhaust wheel (slightly larger than a P-trim wheel), while the 60-1 standard comes with a stage 3 wheel (only 2.559" wheel diameter), and depending upon where you got it, can have that turbine wheel and shaft changed to fit the same .63A/R, so the A/R housing size doesn't tell the story.

We really appreciate the graphs comparisons, but as you can see , there's still more to go and more information that needs to be given before anyone (including yourself) should consider this a fair analysis.

Schister66

Well put

dcmatt

iTrader: (7)

I think he was just trying to show how picking the appropriate turbo for your build can make a huge differance.def gives me soething to think about cause I'm in the same boat pretty much. Going to push for 350 whp on my stock bottomend till I get my lsvtec built but wanted a turbo that would give me room to grow. May be better off justing picking a turbo to suite my needs now then later sell it and upgrade to a bigger turbo when I'm actually ready. Thanks for posting that!

touchmyHONDA

DING DING DING! This guy gets it, now how come all you other fools don't seem to understand.

No **** the bigger turbo would make more power (pat yourself on the back everyone!). This guy wanted the same power peak with more midrange, but instead was given an inappropriate turbo. This comparison's purpose is to show people that buying a turbo that is too large for your goal isn't going to give you the best results.

TheShodan

iTrader: (14)

Hehe. I'd hardly call this comparison a set showing an example of the "right" turbo for 350-400whp. There are TONs of combinations that can do that even more effectively with less boost and better powerband. When I was first assisting Bullseye back in 2005 about these, I was warning people on H-T that there are several variations that are going to give different results, and to NOT go by A/R housings as mode of comparison.

We all figured what he was trying to show an example of, but without the additional information, it didn't really tell us much.

dcmatt

iTrader: (7)

Well maybe I should have said better turbo for the build instead of the right one. But either way I. Didn't mind that he didn't list every single spec. To me it still just a dyno sayinga turbo to large for your setup will result in lost midrange power.

TheShodan

iTrader: (14)

understood. As a matter of general principle in the future, understand that the turbine wheel sizes relative to its turbine housing is even more important than the housing size itself.

Thank you for setting up the graphs at least.

slvrlude

kid w/ a blue eg with a cage? i agree w/ you when you say he probably had no say in what went into his build

slayer423

just want to assure this post by saying that i too have a 60-1 and had a 57trim smaller turbo before and it was a day and night difference. the spool honestly didnt even feel any diferent. i heatwraped exhuast and turbine housing and did other crap to help spool and i can make 22 psi by 5400rpm in a stock port ls head. on the street this turbo is great, and since its biger than most other smaller turbos your engine is gettng colder or safer air than a smaller turbo making 350whp for example. so if you have a b18b with even low compresion pistons like me at 8.3:1 and your trying to decide wether to go with 60-1 turbo, you should, and you wont be disapointed. i havent been able to get slicks but im pretty confident that i will be able to get a low 11 or maybe high 10s with proper launch and pump gas!!! and on street tire i have been able to get consistent low 12s with best of 12.224 and 2.0 60ft with boost by gear and i dont even get to use max boost till fourth. i beat my friends sr20det, and many corvettes, 2 gtrs, many turbo vtec hondas, lotus, and fixed up v8s on pump gas with no vtec so go figure. people can get all scientific as they want but in the end of the day the timeslip is what calls the real shots. o and the turbo cost me $240 brand new with warranty that is truly honored. i know cuz my friend blew his cuz he couldnt make a right return line and they didnt ask questions. just exchanged the turbo and be gone

wantboost

iTrader: (2)

You bumped a 3 year old thread for that response?

slayer423

yea why do you have a problem with that? i was earching everywhere like crazy when i first got a 60-1 for info on b18b motor. so im just putting my input which is what forums are for. should i have started a completly new thread??? this is easier and makes more sense. jeez people on honda tech are funny

TheShodan

iTrader: (14)

mmmkay... 3 years later, still one of the most questionable comparisons ever made. A 60-1 on a B18B street was an unwise choice then as it was now.

I think for the last 50 or so B18B "street" builds I've experienced from others in these 3 years, not one ever had the 60-1 and liked it.. They all went smaller and were happier for it in the long run.

But it was nice going down memory lane again.

rich7777

Schister66

What happened to "go big or go home"?

Forget the S366, i'm going for the S400 FMW 1.25ar on my stock D series because i'm concerned with response .