I've been doing a ton of searching, I don't know if I'm looking in the wrong spot or searching for the wrong thing but I can't find anything on this turbo for a 13b-rew

I can get my hands on one for dirty cheap its the big model H1c with 8 induction fins and 18cm housing, my goal power is only 400-450ish. 350ish on a conservative tune.

I'd like to get some more info on this application before I decide to go and pick it up.

I've read that 490hp was made on a 2.0l 4 cyl with this turbo and it was hitting 20psi @ 4000rpm

Anyone done this application on there Rew? I'm looking for quick boost and a consistent powerband, would like to stay within the Holset family.

 

go to search, advanced search, type in holset, click thread only. hit enter

here read some of these. will give you an idea on what CM housing to use and things of that nature. need to research. type holset hx35/40 in google. there is a TON of information on the DSM forums and i mean a ton. Anything and everything you ever needed to know


https://www.rx7club.com/search.php?searchid=9184177

 

Ya I've spent the last 2-3 hours reading the dsm stuff only on part 3 -.-

I'm gonna keep digging the turbo isn't going anywhere fast, gotta love having a cousin that works at a truck wrecker

 

Motor has 120k, add this turbo it'll blow. An 16cm exhaust housing is massive ps. Would take forever to spool. Plus h1c's came on 1st gen cummins so it'll likely need a rebuild.

 

To my understanding the 16cm housing is the smallest housing holset offers, and is too small for the rotaries. The one I'm in the process of purchasing from a friend is a hx40 with a 26cm housing on an FD and spools about as quick as my BNR stage III on my FC. And when these turbos hit, they hit hard, traction is a serious issue because of how violent these holsets hit on rotaries.

 

Seriously Gavin you know next know nothing about rotaries. If your gonna troll do it elsewhere, I'm looking for actual info, not your bullshit, and no it doesn't need a rebuild

Back on topic the exhaust housing is 18cm from my understanding not 16cm

 

wtf....fail!

 

DAMN! Thats a good turbo right there. Very quick spool, even with zero porting. Squeeze out 450whp easy

 

16cm big? That ain't ****. I'm running the Holset HX40 with a 19cm hotside. I see max boost (15psi) by 3600 rpm on a super tiny streetported S4 motor lol. My turbo has VERY similar boost to my buddy's 35R. And yes these turbos do hit HARD. My BNR stage 3 would build boost earlier than this HX40 I have, but the process of building boost was slow. It was like 1 psi...5psi...10psi...15psi. This holset is like 1psi...BAM 15 psi! Even if your H1C needed a rebuild, the kits are stupid cheap.

I think your H1C is a T3 though right? That is gonna be kinda small for a 450rwhp goal. With my HX40 I'm hoping to make 450rwhp@20ish psi. I know you have bigger ports, but you'll need a T4 turbo. If that H1C is T4-CRANK UP THE BOOST AND GO FOR IT!

 

I've heard that these turbos hit hard but I didn't really understand it until you said this. Makes me wonder what the torque curve is. Also makes me think that these are really fun. So what makes these turbos so different from the T2 Turbochargers? Is this all about turbine design? Can the T2 turbos be made to hit harder? if so, How?

 

It's a t3.

I'm not sure what the porting difference is between a bt and rew is. My engine as it sits right now is stock with a power fc. This turbo setup will be done when I get some bigger injectors so most likely end of the summer. I'm just starting my research now.

 

If it's T3 you're going to choke the turbo a little. Give it a try anyways? Lol..the Greddy Turbo kit that was out for the FC days ago used a 20G with a T3 design. T3 should work for you, but I don't think you're going to make over 400rwhp. Response should be really nice though.

And Gryffin I think it's just the design of the turbo itself. The stock turbos we have aren't designed the same. All I know is the Holsets are designed for slow cold diesel exhaust...now we don't have 6+ liters of displacement like the diesels, but our cars have some HOT and FAST exhaust gases and the Holset turbos are a great design.

 

400rwhp is enough for what I need it for I'm looking for quick response so keeping the t3 would probably be in my best interest

Keep in mind this engine is in a Corolla not a RX7 so the power to weight is alot different

 

Good catch! forgot them h1c are t3. i have a H2c!

 

Just make sure you log your EGT...I think I remember reading that with a small turbo choking the system you could have heat buildup. Just keep an eye on it.

 

Good to know I will definitely keep an eye on that.

I'm negotiating a price right now trying to talk him down to around 100

 

I have a hy55v, but no time to fit it :/

 

And next month I'll post a dyno graph of my car @ around 15psi with my HX40....I'd go for 20psi, but don't have the funding for a boost a pump and some 1680 secondary injectors.

 

Can't wait to see that! I may be pickin mine up tomorrow!! Thanks for your post on the other thread I started btw