Jump to content
SAU Community

Are Rb20 Turbos The Same Size As A Rb25

jarryd2nd

By jarryd2nd,
in General Automotive Discussion

 Share

Recommended Posts

jarryd2nd Contributor

jarryd2nd

Posted
Posted

:D HEY ALL :blink:

im in your help again as i need to know weather a rb25 turbo is the same size as a rb20.

****the reason for this is...****

i have dropped a rb20 im my e30 bmw and after this conversion my turbo is just clearing the chassis rail by 20mm so there is not much room to make it any bigger so i need a turbo basically the exact same size. and if the rb25 does happen to be the same size what is involved to install the rb25 e.g. pipes the target for the power it will produce is 200kw atw or a bit over

your helpis required thanks :):rolleyes:

thrtytwo Veteran

thrtytwo

Posted
Posted

dont quote me, i think rb25 turbo on an RB20 will get you about 180-190 with supporting mods, fuel pump, injectors, computer, zorst, cooler. But I think it would be stretching it to get 200. Someone will know better but thats the general power area im pretty sure.

as for the physical size of the turbo It's slightly larger.

hope this helps

edit: http://www.project32.net/img/turbo_actuators.jpg - 25 turbo on left, 20 turbo on right

jarryd2nd Contributor

jarryd2nd

Posted
  • Author
Posted
dont quote me, i think rb25 turbo on an RB20 will get you about 180-190 with supporting mods, fuel pump, injectors, computer, zorst, cooler. But I think it would be stretching it to get 200. Someone will know better but thats the general power area im pretty sure.

as for the physical size of the turbo It's slightly larger.

hope this helps

edit: http://www.project32.net/img/turbo_actuators.jpg - 25 turbo on left, 20 turbo on right

OKAY thats fairenough but what if i high flowed the turbo is that goin to give me that power gain to get me closer??? i will be doing the above but also chucking in some tomie cams for that bit more punch surley that will get me on the money??? and how much boost could be put through it???

Rekin Grand Master

Rekin

Posted
Posted

an rb25 turbo on a rb20det will push around 180-190kw depending on tune (sometimes hit 200kw depending on dyno)

I currently have a hiflow rb20 turbo which will be getting installed next week along with a tune.

I'll let you know how much power I will gain with the hiflow.

Although there are different stages of hiflow so it depends how much you willing to spent to get it past 200kw

Some info here;

http://www.billetturbochargers.com/Turbo_r...and_hiflows.ews

jarryd2nd Contributor

jarryd2nd

Posted
  • Author
Posted
an rb25 turbo on a rb20det will push around 180-190kw depending on tune (sometimes hit 200kw depending on dyno)

I currently have a hiflow rb20 turbo which will be getting installed next week along with a tune.

I'll let you know how much power I will gain with the hiflow.

Although there are different stages of hiflow so it depends how much you willing to spent to get it past 200kw

Some info here;

http://www.billetturbochargers.com/Turbo_r...and_hiflows.ews

im after spot on 200 kw atw but if its more thats sweet as but nothing less will be taken bloody wrxs are getting me atm damn there awd im currently lookin @ converting mine not a easy excercise

thrtytwo Veteran

thrtytwo

Posted
Posted
im after spot on 200 kw atw but if its more thats sweet as but nothing less will be taken bloody wrxs are getting me atm damn there awd im currently lookin @ converting mine not a easy excercise

would be easier and probably cheaper to sell up and buy a gts4 :rofl:

TTT Grand Master

TTT

Posted
Posted

A gts4 with rb20 and 1450kg is not a WRX beater in no way shape or form.

besides, this fella has an RB20 in an E30 (I would have gone sr20 but anyway)

that is the reason for his turbo upgrade issue. nothing physically bigger will fit in the stock spot.

jarryd2nd Contributor

jarryd2nd

Posted
  • Author
Posted
A gts4 with rb20 and 1450kg is not a WRX beater in no way shape or form.

besides, this fella has an RB20 in an E30 (I would have gone sr20 but anyway)

that is the reason for his turbo upgrade issue. nothing physically bigger will fit in the stock spot.

exactly right gtst it is a fair bit lighter good suspension set up and i think it could get to the point of beating a wrx... im not out to even try and kill a sti what you think???

is it possible

thrtytwo Veteran

thrtytwo

Posted
Posted
A gts4 with rb20 and 1450kg is not a WRX beater in no way shape or form.

besides, this fella has an RB20 in an E30 (I would have gone sr20 but anyway)

that is the reason for his turbo upgrade issue. nothing physically bigger will fit in the stock spot.

lol obviously not stock, and i forgot he had the motor in a diff car :)

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

    • MBS206
      Tein Circuit Master- rebuild worth it?

      By MBS206 · Posted

      If they can dyno them, get them dyno'd, make sure they're not leaking, and if they look okay on the dyno and are performing relatively well, put them in the car.   If they're leaking oil etc, and you feel so inclined, open them up yourself and see what you can do to fix it. The main thing you're trying to do is replace the parts that perish, like seals. You're not attempting to change the valving. You might even be able to find somewhere that has the Tein parts/rebuild kit if you dig hard.
    • MBS206
      Best place to order Authetic R32 Parts in Japan

      By MBS206 · Posted

      Can you also make sure the invoices on the box (And none exist in the boxes) are below our import duty limits... I jest, there's nothing I need to actually purchase and order in. (Unless you can find me a rear diff carrier, brand new, for stupidly cheap, that is for a Toyota Landcruiser, HZJ105R GXL, 2000 year model...)  
    • MBS206
      NC MX5

      By MBS206 · Posted

      Murphy strikes again! Nothing at all would have gone wrong if you had the tool kit in the car! You'd have just found the clamp loose the next time you went to touch it...
    • MBS206
      Blue slip

      By MBS206 · Posted

      I have been being VERY quiet about what you're alluding to, as it is something that ticks me off... The number of cars from factory that run coil overs is HUGE! Most of them these days do... The other part that annoys me, is people saying "Well all the incabin adjustable suspension is illegal by blah blah blah"... If that's the case, then why can I buy a car brand new that can do it if, FULL STOP in cabin adjustable suspension is illegal...   Also, I could just chuck some aftermarket shocks in my car, throw the stock springs on, after my blue slip, dump my super low springs back in. Same shock and spring style setup... Hell, they could also be the same colour springs etc.     I'm voting, BlueSlipper didn't want to touch the above car for some reason. Whether it be some sort of bias against the car, the owner, them maybe having previously done dodgy shit and now they're being super careful in case they get slapped in the face by the Gumbyment again... Find a new blueslip place.   And can confirm as you had said, yes there are holy bibles of vehicle heights, and all sorts of other suspension stuff. Heck your run of the mill mechanic, and tyre shop has access to all of that stuff. It's how they do wheel alignments...
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Funny story Heading to Sydney this morning on the HWY there was some slow traffic, so I gave it the beans and midway through my overtaking "power run" I lost all power It seems that I missed a hose clamp,  and the MAF and filter went WiFi To make this more problematic, the little tool kit that lives in the boot, is sitting in the sun room at Goulburn......LOL Luckily for me I found a bit of steel on the side of the road that could be used like a rusty and bent flat head screw driver to tighten it up enough that it got me into Sydney, it is now all tight like a tiger with the aid of a 8mm socket Note to self: Use my brain and double check stuff, and always keep that little tool kit in the car for when I have a brain fart
×
×
  • Create New...