Got some question on the hx35 turbo?

[joeythemech]

I have i rb20 255 wal bro fuel pump and i some little stuff.So what else do i need to run the hx35 turbo i know injectors but what else do i need to do any crazy mods to the motor.N what is good injecter size for that turbo thax for the help.

[Cjmartz2k]

I'll entertain this because I'm a big holset fan. The HX35 can make from 400rwhp to maybe a little over 500rwhp depending on which compressor and hot side you get (7 blade flows about 100hp more than the 8 blade depending on how crazy you get with the boost). Now the fact that you have an RB20 will probably lower that number a good bit, especially on pump gas. If you keep the boost low, you could probably get away with GTR 444cc injectors, but that's not to much fun. I'd get 550's or bigger. I really don't think there is such a thing as too big of an injector as long as you have good idle and decent mpg. There is no such thing as matching your injector size to your hp. If they will idle good on a 1000hp 6 banger car, they will idle fine on yours.

Are you asking EVERYTHING you would need? I will tell you I have personally made a list of things needed for 500hp or so. Search and you will find. If I were so inclined to make a list, I would first search for my own post and copy that to hear, so I'm not going to do that. Only thing I will tell you that wouldn't have been on that list is your going to be at the limits of the RB20 transmission REAL quick with a HX35.

[Fibre guy]

I've heard the hx35 spools slowly on the rb20det.If you just look at other rb20 setups that are running the hx35 you'll get a good idea. Unless your looking to max out that motor I would consider running a smaller snail. Even with the rb25det the hx35 is a jump.

[joeythemech]

Thax for the advace i hope u can get the list to me.what other turbo pretty good and cheap out there then.

[Carl H]

wouldnt it be a good idea to fix your overheating problems before trying to make more power?

[joeythemech]

Am going to fix the overhating.i have been trying.but i have oil in all my intercooler pipping so i need a turbo any ways i think.and my turbo make some kind of nouisie to.everthing i just going bad and i just got this car with the swap it suxs

[rb25det250sx]

im not one to hate but seriously how old are you? and did your school not teach you how to spell and type?

[Fibre guy]

I have a machined t3/t4 turbo spools ok but I regret buying it. You might just want to ask one of the turbo guru's here on nico. CjMartz2k is all over turbo threads wait till he responds to your new question.

[Cjmartz2k]

I appreciate the nod, but I wouldn't consider myself a turbo guru by any stretch Why don't you like you T3/T04e (I'm assuming that's what it is). BTW, I just noticed you have a YJ with a 4.6 stroker in it FiberGuy. I've got a TJ with a Golen 4.6L in it--you build yours or buy it?

OP--You are going to get a LOT more friendly responeses if you make the effort to use proper grammar and spelling. People don't say it over and over and over again in every thread you post just to be funny.

As for the turbo selection, what are you trying to do with the car? Saying the HX35 would spool slow on a RB20 is kind of a relative thing. Most anything spools slower on a RB20. It's just the nature of have a 2.0L straight six. You should shoot for a power level and get a turbo to suit. If you want 400rwhp, you be hard up to find a better spooling turbo than an HX35 or Garrett GT30. Only difference is the HX35 doesn't cost $1500. If you want something that spools quicker, the HY35 is supposed to do just that, but I haven't seen a lot of people running them, so I can't qoute any results. It's got a smaller exahust wheel and ex housing with the same compressor of the HX35. I'd kinda think of it more as a T3/T04e hybrid with a lot more punch. It's a single scroll ex housing though, so I don't think it's probably as quick spooling as it could be if they made it with one. You could be a pioneer and try it out for the RB community. They appear to be extremely easy to find since everybody always tries to snap up the HX35's over the HY's.

[Fibre guy]

Yeah it's a t3/t04e the turbo guy who sold it to me machined it for larger AR wheels and threw a 360* thrust bearing in. I have the paper with all the work somewhere. All together it was $700. I'm running it with a 40mm synapse and its living up to expectations but I built my bottom end for power. I've had my eyes on a gt3076r for awhile now. I've even thought about duals since I'm making my mani from butt weld steam pipe in the future.

As for the 4.6. Mine originally came with the 4.2 so I had the long stroke crank and there was a spare 4.0 HO block sitting around. New cam, .020+ pistons, and dual valve springs. I was all set under a grand minus the gaskets, water pump, and oil pump. I'm looking for a rd28t manual 4wd diesel to throw in next (mega mpg's & torque).

[danb8586]

im currently finishing my rb20 project with a hy35 on it but i cant really give you a good idea on spool time because i wanted to keep the stock internal wastegate working and i had to clock the turbo so it was made to work ok and the wastegate starts to open at 6psi and creeps to 15. i would have liked it to spool a little faster but i think a electronic boost controller will help out a lot. the stock mafs it maxing out at 14psi so thats decent power levels for right now. the turbo will creep in 4th gear wot to 25psi, only done it twice with a stock block with 10.0 afrs at high revs.

[RBRob]

Hey guys, very new to nico so please bear with me if i didnt catch everything.

Main question is, Is the HX35 a T3 or T4 flange? and if it is a T3 can i change it to a T4 somehow and the same question for the HY35 is it a T3 or T4?

Sorry if its a question thats been asked a 100 times.

Thanks,Rob

[bmart]

They are both T3 flanged.

[supersayianjim]

hi guys. can you give me the link to a member on here that made a hx35 fit onto a rb20?? it's on here but i can't find it for the life of me

[240z4u]

Jim, you will need at least one t3 flange to space it out from the manifold. If you want to weld it to the stock manifold I know of a guy on the east side who welded my old stock manifold and did a beautiful job.

[bmxarmy]

240z4u, what kind of numbers are you getting out of your setup? Fairly similar to my setup.

Also are you running an oil restrictor? I have seen people argue it both ways if it is required or not. My oil feed line goes down to aprox. 1/8" hole.

Nolan

[240z4u]

Not currently running a restricted setup. My car doesn't seem to burn oil and it's not forcing it past the seals. Not saying my way is right, but it works for now.

I am not sure what power numbers are or trap speed. I got it dialed in last summer on the street and my clutch promptly took a dump.

[supersayianjim]

Not currently running a restricted setup. My car doesn't seem to burn oil and it's not forcing it past the seals. Not saying my way is right, but it works for now.

I am not sure what power numbers are or trap speed. I got it dialed in last summer on the street and my clutch promptly took a dump.

-the east side where??? i live in saint joseph m.o. i have a guy to do the welding though

-can you take pics and send them to me email/text [email protected]

-what did you do for the exhaust?? i have a hx flange And x2 o2 bungs and a bent 3" exhaust.

-i thought i needed x2 flanges welded?? i brought 2 but if i need one i need one..

-PLEASE PLEASE PLEASE get back to me...

[240z4u]

I am not running a factory manifold. I had originally intended on using a factory mani but bought a 6boost. Do you have the turbo yet? Spare exhaust manifold? Mock it up and see.

[placham]

Throw my .02cents in, He351cw turbine wheel is smaller than TD06H 20g I know this for a fact cause I have few turbos around. He351 is between TD05H 18G and TD06H 20G wheels. HE351cw is newer version of HY35 but think guts are same spec just boost solenoid valve on compressor cover. I seen people run TD06H with 10cm^2 housings on RB20s hit full boost around 4800rpm. He351 wheel is smaller and housings is 9cm^2 should spool quicker in theory. This is to give you an idea where this turbo falls.
Cefiro rb20 20g(probably with Greddy bits too) http://www.youtube.com/watch?v=xg9qotypjYo

[supersayianjim]

but how much horsepower approx with stock injectors and a z32 maf??

[Gabes13]

Aren't stock injectors at +100% duty cycle by 230rwhp?

[supersayianjim]

gabes, you the one that had the godspeed coils on before?? and if 230hp is 100% duty cycle. factoring in 30% drivetrain loss wouldnt that make like 161whp??? and if i did 185whp am i at higher than duty cycle.

[Gabes13]

Sorry, I don't have godspeed coilovers; never had. And for the hp numbers, I was referring to rwhp, so about 280hp crank.