Jump to content
SAU Community

Hks 2535 And Skyrocketing Boost!

limpus

By limpus,
in Engines & Forced Induction

 Share

Recommended Posts

justin911 Grand Master

justin911

Posted
Posted

i noticed when i put my boost controller in and setup the gain it spooled faster than when i was just using the wastegate

i don't NEED to run a boost controller if i don't want to...if you say the hks actuators are second to none then they will hold whatever boost level they're meant to hold properly...
grippy Collaborator

grippy

Posted
Posted
Gee...thanks for the technical lesson...i'm a certified mechanic and mechanical engineer and been involved with turbo cars for 4 years...as if i didn't know that a bigger turbo would cause more lag...when i said positive boost at 3500 (NOT 1000rpm) i meant that the boost gauge would read 0.0bar at 3500 or more...now that i know for a fact is abit late...i'm asking for opinions and suggestions here...i don't need to know that i need a boost controller and i need a dyno tune...so before you try to teach me how about you read your own crap first...i don't NEED to run a boost controller if i don't want to...if you say the hks actuators are second to none then they will hold whatever boost level they're meant to hold properly...

So sorry Mr education....

Best you don't assume nobody else here has mechanical experience. How well do you know me????

4 years is such a long time now isn't it?????

Tread carefully my friend...

Go ahead and improve on a HKS internal wastegate, I would love too see that.

Maybe the wastegate is not operating correctly but that is not a design fault..

limpus Mentor

limpus

Posted
  • Author
Posted (edited)
So sorry Mr education....

Best you don't assume nobody else here has mechanical experience. How well do you know me????

4 years is such a long time now isn't it?????

Tread carefully my friend...

Go ahead and improve on a HKS internal wastegate, I would love too see that.

Maybe the wastegate is not operating correctly but that is not a design fault..

Since when have i ever said i wanted to improve on the wastegate anyway...4 years also ain't that long...but its definitely enough time to know that a larger turbo will have more lag...and its definitely enough to know i need to get it tuned for it to run properly and safely...anyway...so if you do have more experience...give me a list of possible causes and i'll take them into account...instead of telling me redundant crap like how i MUST run a boost controller...

Edited by limpus
R31 POWER Mentor

R31 POWER

Posted
Posted
Maybe the wastegate is not operating correctly but that is not a design fault..

That was my first guess but after trying 2 RB20 and 1 RB25 actuator i thought otherwise. New hose with hose clamps were used so it did'nt leak.

Im going to open up the waste gate a bit more once i take the turbo out for the new motor. Theres more than enough meat in the housing to grind yet still keep the HKS popper flap and keep a seal. It cant do any worse can it.

limpus Mentor

limpus

Posted
  • Author
Posted
That was my first guess but after trying 2 RB20 and 1 RB25 actuator i thought otherwise. New hose with hose clamps were used so it did'nt leak.

Im going to open up the waste gate a bit more once i take the turbo out for the new motor. Theres more than enough meat in the housing to grind yet still keep the HKS popper flap and keep a seal. It cant do any worse can it.

Thats a good idea...i might have to do the same thing if i can't sort this problem out...can i ask what dump pipe are you using? is it a hks original or some other dump...cheers...

Gazee Grand Master

Gazee

Posted
Posted
Come on now and get serious, I cannot believe some of the rubbish that is posted..

:)

Their all questions... everyone learns from somewhere

oh p.s. getting a turbo to spool under 1000rpm? please read hpi with bee r's s15 on the front cover :) (supercharged sr20det + tdo6) :sorcerer:

R31 POWER Mentor

R31 POWER

Posted
Posted
Thats a good idea...i might have to do the same thing if i can't sort this problem out...can i ask what dump pipe are you using? is it a hks original or some other dump...cheers...

I started with a blended 3inch dump. I now have another dump converted to screamer with a 2inch screamer. Still the same.

Gazee Grand Master

Gazee

Posted
Posted

If you guys are paranoid about the actuators... best way to checking if it opens correctly and what psi its set at by using an air compressor with a guage on it... that'll determine if its screwed or not...

2nd thing is porting the wastegate hole on the exh housing... better to get it done professionally just incase you go too much then your screwed.. only your dump pipe will cause this issue if the flapper dusn't open all the way cos its hitting it..

let us know how you go

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • davemoto63
      Stagea choice's which model??

      By davemoto63 · Posted

      Was there ever a model of the Stagea m35 that didnt have a badge on the grill? I thought I saw that somewhere, some aero edition or something? I cant find it again? davemoto
    • davemoto63
      Noobie Stagea owner..

      By davemoto63 · Posted

      Its a 2002 vr-x four VQ25DET, silver. Coil overs, lowered, polished alloys and sport exhaust. Bit of a project, was sitting in a shed for a while but runs and drives great.
    • CF.Panda
      R34 25GT Engine Light 21

      By CF.Panda · Posted

      I wasn’t able to replicate the sound anymore. It was a one time sound so maybe it was just coincidence but it was like small pebbles being dropped in a coke can.   should I try cleaning the MAF? It could be it’s functioning but dirty? I don’t know.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Update 4: Hi all. The car drives again! Haven't driven for long, only to store it in the garage again, but the test drive was successful. The coolant and oil leaks seem to be fixed for now. Temps on the engine were also very good, while moving I never even saw 80C water during the approx. 30 minute drive. Ate up all the coolant in the reservoir though so will have to fill that even more when I go to the car next time. One thing that pisses me off is that the RPM gauge is still f**ked, I even resoldered the board twice and used copper paste on the silly screws that are used as connections. Next time I take it out I'll take apart the board and fit new components, I'll see if I can get a replacement IC for it.  I have an appointment set for 22nd of September for the engine tune to 370hp. Alignment also still needs to be done. My hope is that I can get all the legal stuff over with by the end of this season. Anyone of you have advice regarding intercoolers? Currently there is an APEXI core fitted, one of those weird hybrid ones, 600x270x76. I don't think it's bad but it's not new and now I still have the chance to change it now to legally include it in the paperwork. Only issue is that the only options that would arrive in time are a HKS Type R intercooler or generic Ebay spec intercoolers comparable to a JustJap one. Ideally I'd order a Plazmaman but it takes over a month to receive which would mean making the car legal has to wait until next season. Would love to hear some input on this. Same story for my injectors, the previous owner was a nunce and put ID 1050x on the engine. They work but are obviously not ideal at "normal" power levels. But I don't see a reason to change them unless the tuner says it's necessary. I read online before buying a different exhaust that the top secret style rear diffusers won't fit due to the size of the rear resonators. My buddy and I made it work by slightly "adjusting the shape" of the mounting bracket and making some spacers out of 3d print for the mounting bolts. Fits like a charm. Just putting this here in case someone has this problem. Even the hefty HKS Silent Hi Power rear can fits without hitting anything.
    • Butters
      UniClutch

      By Butters · Posted

      Well they got my money but they are not getting my gearbox ! 
×
×
  • Create New...