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Rb20 Torque Monster :)

SimonR32

By SimonR32,
in Engines & Forced Induction

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SimonR32
SimonR32

Finished tuning the little old RB20 last night using 50% CSR E85 and 50% BP98 mix (to make a E42.5) and was very surprised by the torque... Power was just under what I was hoping for but still very pl

SimonR32
SimonR32

Good to hear you are back on board the power boat roy

N1GTR Grand Master

N1GTR

Posted
Posted
Full boost is about 4700rpm in 4th...

Starts to move at 4000 and giddys up by 4500!

Been on to a motorkana already, it's fine apart from really tight stuff (helps with good suspension, dont have to slow down as much :cool: )

All these arguments are boring, got any vids of it at the motokhana?

SimonR32 Grand Master

SimonR32

Posted
  • Author
Posted (edited)

Got motokhana next weekend and powercruise the week after so should be plenty of videos soon!

If you are lucky there might even be a rod flying through the bonnet in one of them haha

Until then, here are some pics from the last one (was only on 350hp and BP98)...

IMG_0361.jpg

IMG_0413.jpg

DSC_0001.jpg

DSC_0127.jpg

Last one, it's a shit pic but shows the colour nicely :thumbsup:

DSC_0128.jpg

Edited by SimonR32
SimonR32 Grand Master

SimonR32

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Posted
Haha yeah we need to see the rod through the block. Extra points if you get it on film haha

Where's that khana at? It looks like a shopping centre carpark

It's in the car park of the cycling speed dome plus their practice circle road thing out the back here in perth! It's really tight and a bit shit but still fun :-)

  • 2 weeks later...
Rolls Grand Master

Rolls

Posted
Posted (edited)

If you are going to the trouble of running E42 why didnt you just use pure E85? You still need to go to a random servo each time so I don't really see the advantage, unless you were running out of injector.

edit: just watched the vid, are you running a locker? Cause it seems to understeer bad then power oversteer.

Edited by Rolls
SimonR32 Grand Master

SimonR32

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  • Author
Posted (edited)
If you are going to the trouble of running E42 why didnt you just use pure E85? You still need to go to a random servo each time so I don't really see the advantage, unless you were running out of injector.

edit: just watched the vid, are you running a locker? Cause it seems to understeer bad then power oversteer.

Don't have E85 on pump over here in WA so have to purchase CSR Sucrogen E85 in 205L drum. Cost is one factor as it's expensive at $550 a drum and also convenience of only having to get one drum to make 400L of fuel :)

It's got a ATS 1.5way, only understeers a little when I push it hard on the gas into very slow corners... Not really designed for motokhanas with the RB20 being that laggy. At speed it handles like a dream :laugh:

Edited by SimonR32
SimonR32 Grand Master

SimonR32

Posted
  • Author
Posted
nice work Simon, definately come along way from last i saw of it. I assume you didnt do the paintjob with a paint brush or roller like the black it used to be :) Colour looks awesome, good to see something different for a change.

haha yes it has... Go on antilag and I have a showcase thread of what I have done :laugh:

  • 2 weeks later...
Wheezy Mentor

Wheezy

Posted
Posted

Reminds me of what mine is like to drive in slow corners, but worse. No boost then bang! need moar balls to drive it. It's all well and good to make all that power, but you will never use it in a corner with the lil 20.

I still love my 20 and will continue to work on improving it as much as I can within reason, but sometimes an RB26 is ever so tempting :P

Roy Grand Master

Roy

Posted
Posted (edited)

Ok, its on! Have done an exchange with a friend for some parts which means amongst other things i now have some new SARD 700cc injectors. So they can go in with my new fuel rail with full ptfe/braid lines and fuel reg and we can start to see what sort of boost we can screw into my thing with E85 :)

Its on ... IS ON LIKE KING KONG!!!!

Reminds me of what mine is like to drive in slow corners, but worse. No boost then bang! need moar balls to drive it. It's all well and good to make all that power, but you will never use it in a corner with the lil 20.

I still love my 20 and will continue to work on improving it as much as I can within reason, but sometimes an RB26 is ever so tempting :)

Must be in the tune. My thing does not hit that hard and sure as hell doesnt break into wheelspin, a little bit in st but 2nd gear just hooks up ;)

I like the 20 in the corners as it has less torqe to turn the tyres and easier to get on the loud pedal. By corners i mean corners, not silly 120 deg turns on a skid pan, but 70km/h+ corners on a circuit

Edited by Roy

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