Jump to content
SAU Community

how much kw will it get?

nemz

By nemz,
in Forced Induction Performance

 Share

Recommended Posts

nemz Experienced

nemz

Posted
Posted

after a fair bit of money spent this is how a project is going after an engine shitting itself and being rebuilt

rb20det

polished

balanced

o-ringed

arias pistons - taken out 20 tho

better valve springs

had the head machined

copper head gaskets

-

billent adjustable cam gears going in

oil catch can

high mount exhaust manifold

to4e turbo

700x300x78 fmic 3" piping

38mm wastegate

pod filter

bosch 040 fuel pump- might change

3" turbo back exhaust

-

wolf 3d series 4 ecu

with this set up wat kinda power can be expected? any suggestions on anthing missed? there has been alot of money spent so far as you can see on the list, any help would be greatly appreciated

Link to comment
Share on other sites
Roy Grand Master

Roy

Posted
Posted

These arent really recommendations , more like questions:)

Any reason why you put valve springs in but kept the std cams?

Also it may have been worthwhile to go a lot bigger then 20 thou, you could have easily bumped up displacement to 2.2L with pistons alone.

Also what have you done in the way of rod bolts for the std rods?

Also i wouldnt decompress the engine any more then the std 8.5:1, also i noticed of late some of the cheaper 3" exhausts are in fact 3" ie 76.2OD whilst a lot of the Jap so called 3" exhausts are actually 80mm...

Link to comment
Share on other sites
nemz Experienced

nemz

Posted
  • Author
Posted

gtr injectors,and yeah-the to4 will b good for 1.5 bar, yeah got cam gears,std camshaft. he will be changing other things over time. "Also what have you done in the way of rod bolts for the std rods?" umm nothing i know of, any advice would be greatfull though, just need to know what else is necessary, rods? crankshaft?

Link to comment
Share on other sites
Wazz Community Regular

Wazz

Posted
Posted

To4e? why are people using OLD t04's when there is a shitload of new range turbo's out that spool earlier and produve a much nicer power band :)

sadly enough tho with the money spent on that you could have dropped in a rb25 given it a power fc turbo upgrade with injectors.. and it would probaly go alot harder and easier to drive than the dirty old t04e

Link to comment
Share on other sites
nemz Experienced

nemz

Posted
  • Author
Posted
To4e? why are people using OLD t04's when there is a shitload of new range turbo's out that spool earlier and produve a much nicer power band :)

sadly enough tho with the money spent on that you could have dropped in a rb25 given it a power fc turbo upgrade with injectors.. and it would probaly go alot harder and easier to drive than the dirty old t04e

yeah, mate, you should do that, it would be really good :)

he wanted a powerfull rb20, he now has a powerfull rb20.

you would be surprised how much money was actually spent.

Either way, were you going to give some advice? thats why we started this thread.

oh- and the to4 is new or...hasnt been used.

is there anything that he could have missed? thx guys.

Link to comment
Share on other sites
mait32 Enthusiast

mait32

Posted
Posted

I put an RB25 into my 32 and was rapped, originaly i wanted to build my 20 and have a crazy 20 but when it came to spending the bucks Ben from Racepace advised me that the 25 will make a bit more power at the end of the day so i was sold. I ended up doing the forged pistons, gtr rods, tomei cams 550cc injectors, power fc, hks 3037 proS, fmic and 3.5inch exaust. very happy with the job that was done going to make about 280kw at the wheels on about 17-18pnds.

could'nt be happier with the turbo choice. Perfect for the street not laggy at all.

Link to comment
Share on other sites
Wazz Community Regular

Wazz

Posted
Posted

I wanted to do the same thing.. get a powerful rb20 in my silvia.. but how ever with the money that i was goin to spend i was better off just buying a 26 and getting similar power out of a stock rb26 with mild upgrades.. and still have a safe reliable engine..

dont get me wrong.. rb20's are awesome little motors.. but they just dont have wat it takes to get alot of power out of

Link to comment
Share on other sites
R32SOM Contributor

R32SOM

Posted
Posted
I wanted to do the same thing.. get a powerful rb20 in my silvia.. but how ever with the money that i was goin to spend i was better off just buying a 26 and getting similar power out of a stock rb26 with mild upgrades.. and still have a safe reliable engine..

dont get me wrong.. rb20's are awesome little motors.. but they just dont have wat it takes to get alot of power out of

240 rwkw so far, highflowing the t04, not alot of power:P we will see how we go after its done

Link to comment
Share on other sites
  • 1 month later...

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

    • Darrel
      Theoretical Power Numbers

      By Darrel · Posted

      @Butters I can't tell you why but the bigger HKS step 2 cams improved low and mid end immensely. Turbos started spooling about 1k RPM less than before and the idle/vacuum was rock solid, it was an absolute thrill to drive, 3rd gear pulls hit 180kmh where previously only managed 160. Conversely, the milder poncoms in there now have a funky idle making it harder to get off the line, drives poorly in lower revs, laggy and makes less power/torque throughout. Feels better after I swapped the EBC but unless I put it on the Dyno again, I can't say how much better.
    • stasis
      Stagea Suspension

      By stasis · Posted

      Hi Sydney kid   do you still selling spring and blistein shocks for Nissan 260rs? Air any suspension upgrades? Please advice     yudy
    • Butters
      Theoretical Power Numbers

      By Butters · Posted

      Cams are not needed at this power level, they will create lag. The cam gears are a good idea though.
    • Darrel
      Theoretical Power Numbers

      By Darrel · Posted

      @Murray_Calavera yeah, I guessed as much, cooler temps, more boost, less knock, more timing, hello power. Unfortunately not quite within reach ATM, could upgrade my whole fuel system to support but still wouldn't have E85 to run it 😂  Anyway, I changed cams again, 260/260 poncam B and everything else the same except an EBC upgrade. Now I must say I was quite disappointed with the result as it was like running stock cams (didn't try to dial them in as they're supposed to be optimum already) but after awhile I suspected my new EBC was underperforming not to mention difficult to use. I recently swapped back my old EBC and it drives much better now, boost comes on sooner, more stable, no spikes etc, feels all quicker and faster than with stock cams. Planning to fiddle with the cam gears and see what happens but maybe skip the Dyno as I intend to revert to the HKS cams cos they really made the car come alive; low and mid end was unbelievable and it just wanted to rev to the moon, finally knew what people were raving about, RB26 really loves revs. Anyway, Dyno 03 is quite disappointing, in Dyno 02 although peak power was less and trailed off at the top, the low and mid end improvement more than made up for it.
    • Murray_Calavera
      Theoretical Power Numbers

      By Murray_Calavera · Posted

      @Darrel It's so tempting to say e85 is borderline magic. It cools the intake charge, so if you're flirting with the edge of the turbos compressor map it helps dramatically cool down the hot air the turbos are pumping. It is very resistant to detonation so you can crank the timing, I don't really want to say you won't be knock limited anymore.... but you probably wont be knock limited anymore lol. I wouldn't be surprised if you made 20% more power swapping to e85 (provided you have the fuel system to support them, bigger injectors maybe bigger pump etc). 
×
×
  • Create New...