Rb20det Tuning And Options!

[irishGTSr32]

Heyya doing people!!!!!!

Right my heart set on building a very fast R32 powered by a RB22!!!!

Right first off lets start by saying this car will have to drive from Ireland to Germany to the RING !!!!!!! once or twice!!!and be used at weekends for fun n games! but truly is gone be a track car!!!!!

My plan is to ! Rebuild my perfectly working RB20 cruently at 300BHP at fly! to something with a bit more power!!! would like 350+ at the wheels, im unsure of what turbo will get me there but its not all about the figures!!!!!! Im looking for something which will be track focused, good power , and plently of RPM rang so i can used the power on the track!!!! any ideas??????

Engine rebuild from the bottom up will consist of:

Regrind crank.

ACL big end bearings + (was going to go with rods too but tuner told me there good for 500?)

Apr bolts

forged Wössner pistons

Rebore for 2.2L

Cumbustion chamber enlarged for 2.2 bore!

metal head gasket

oil gallery orifice + leak off to sump

N1 water and Oil pumps

Considering using GTR valves(input please)

abj pullies,Soild lifter, GTR cams, supertech double valve springs

Plazmaman Inlet manifold

Fueling wise im unsure of i have 444cc injectors + should uprate to external pumps or twin intank pumps?

Guys any input will be helpfull! please help the IRISH guy!!!!

Many thanks Chris

[Willie]

Not quite sure where you are going with this build but these threads might help. They all deal with increasing the capacity of a RB20. Read the stickies in this forum for heaps of information on suitable turbos. You will probably have to think about a gearbox upgrade as well. Good luck with it.

http://www.skylinesaustralia.com/forums/Rb...tml&hl=rb24

http://www.skylinesaustralia.com/forums/Pr...tml&hl=rb24

http://www.skylinesaustralia.com/forums/Rb...tml&hl=rb24

[discopotato03]

I reckon an RB25 , even an R32 NA one would be a better basis than an RB20 . No VCT like RB20 but more capacity and 25DET pistons should go straight in . Bigger bore/more cubes/far better porting and valve sizes std .

A .

[GTScotT]

agreed, rb25 flows alot better.. much better place to start. just swap out and go from there

get a hicomp like disco suggested and boost it up baby

[R31Nismoid]

350rwhp or rwkw?

[irishGTSr32]

Well r32 NA are hard to come by over here tho ill look into it!!!! and i want to keep RB20 yes i know ! rb25 flow better and would be easyer to start from there! But this is about keeping it a RB20!!! plus then you have to pull it apart n start agian -1000euro

And yes Rb25 box here for new build!!!! the rest of the car is done just need enine now!

Edited January 28, 2010 by irishGTSr32

[Wheezy]

350+ rwhp

I'm Biased, Trust TD06L2 high mount will shit it in and look good doing it

otherwise Garrett GT3071? or the likes?

[irishGTSr32]

What kinda lag would i be getting using a GT3071?

[XRATED]

Dude, if you want 350bhp+ using a rb20.... there's going to be lag. You'll have to build it to rev.

Go the TD06L2.

If you want to keep the rb20, use a rb26 crank and rods with custom pistons. Keep the bore as close to stock as you can.... bored out rb20's seem to split blocks regularly.

Port the head, thow some rb26 cams and solid lifters.

Then throw as much boost and fuel at it as you dare...