hondahater

iTrader: (2)

Ok just wanted to know if any of you guys have any experience with this particular turbo? It's a Borg Warner s472 that has a 1.01 t4 hotside and no extended tip. The turbo will be on a fully divided manifold. Does anyone here have any particular experience with and t4 s400 as well as no extended tip design? I just bought this setup from someone on the forum for a great price so I'll try it out to see how it goes.

rx72c

iTrader: (8)

Never used it.


Ill have some dyno results for a borgwarner s400 with 75mm extended tip and 1.32 turbine soon.
Im still trying to find someone who will sell me a s400 with a 75mm extended tip compressor with a .96 turbine.

hondahater

iTrader: (2)

you ever used a non extended tip bw of any kind and compared them with the same size turbo but with extended tip? Just wondering how much the non ET is going hinder spool up time.

ScorpionT

iTrader: (3)

There isnt a .96 a/r turbine for that turbine. I dont believe BW even has one of that exact size. Thats one used by Garrett, Turbonetics, and Precision.

The closest you can get is a 1.10 a/r, but its not cheap.

Ive had experience with them. Spool wont really be slower, but to make similar power to an ETT you need to run higher boost pressure.

hondahater

iTrader: (2)

oh ok, for some reason I thought ETT was to help spool up time as well. Just looking for 500hp and think this turbo aught to do it relatively easily.

rx72c

iTrader: (8)

The .96 a/r housing does exist. I have seen it in my own eyes. Might be a custom jobbie. Mikes turbos does them but he does not answer emails.

hondahater

iTrader: (2)

should be a fun little turbo



I know it's no high dollar garret or precision but I think it'll do what I want it too.

ScorpionT

iTrader: (3)

I just got a return email from my guy there. He said they only have the 1.10 housing.

hondahater

iTrader: (2)

Yeah that's the housing I have too.

rx72c

iTrader: (8)

off the shelf the 1.10 housing is the smallest.

But you can get a .96 custom machine job.

Got any pics of your rear housing hondahater.

turbotoaster

actually 0.90 a/r is the smallest you can get guys

hondahater

iTrader: (2)

here are a few...

ScorpionT

iTrader: (3)

Yeah, you could find someone to do the housing.

No sense in going that small with such a large turbine. Turbine efficiency drops way down when you do that. If you run a big turbo, you are better off sacrificing some low end and keeping the high end power.

turbotoaster

in other words say instead of hitting full boost at 4k and running out of puff at 7.5k(giving you a 3.5k power band) its better to have full boost at 5k and having power all the way to 9k(having 4k powerband)

is that what you mean?

ScorpionT

iTrader: (3)

Yes, especially when its a larger turbo, and the point being more high end power. Not only that, but you would make more horsepower along with the better powerband.

Jobro

iTrader: (2)

http://www.forcedinductions.com/productsborgwarner.htm

* Add $199 for T4 housing (.90A/R, 1.00A/R, 1.10A/R, 1.25A/R).

**Optional True Genuine Borg Warner race cover available for $289 extra. Cover is a higher flowing casting with 3" slip discharge. 75-100hp gains.

You better not be talking about using a single entry 0.96 T4 Omar!

ScorpionT

iTrader: (3)

That doesnt apply to the larger 96mm turbine wheel. The T4 .90, 1.00, 1.10, and 1.25 are all divided housings.

turbotoaster

is it possible to use a 96mm turbine wheel in a t4 frame, is that a custom thing?

ScorpionT

iTrader: (3)

As far as I know, Precision is the only one that makes a T4 housing for a large turbine wheel of similar size. You could possible have that housing cut for the 96mm wheel, but its just better to go T6.