Rb30det Or Rb20det?

[ZILR-34]

hi guys

i have a R32 gts-t. im at the point i dont know wat to do. i have started to get all the parts together to do the rb30det with the rb25 head. but i was thinking the amount of money im goin to spend on the rb30 i could work the rb20 with all the goodies. ill be happy to get about 280rwkw's.

so which engine so i build to make 280kw?

cheers

bill

[Roy]

What do you currently have...and how big is the budget?

[D-limo]

If you like revs.. sell up the rb30 gear and go rb24

[ZILR-34]

my budget is about 5grand. but i love the Toque wat the rb30 has it just pulls. and the rb20 revs its tits off.

the rb20 is in my 32 already

[danielson]

5 grand will get you a really nice turbo......

[Roy]

Unless you are really hands on and can get things done yourself in your backyward...and you already have FMIC, fuel pump, injectors, exhaust etc...then 5k wont get you anywhere near beign able to buy an RB30DET and turbo capable of making that power...not to mention the clutch and gearbox, what sort of life will they have with that sort of power.

Not tryign to deter you from doing it...just do your homework on how much 280rwkws costs

[BU5TER]

If you like revs.. sell up the rb30 gear and go rb24

What would be a safe rev limit for a built RB30 or RB24?

[R31Nismoid]

You wouldnt need to rev the nuts off an RB30DET though as it'll pull tree stumps out if its setup right... so there is no "need" to rev it stupid.

To get the RB20 to 280rwkw is going to cost more than 5k

To get the RB30DET to 280rwkw is going to cost more than 5k

JET - can you list everything that you have already, i mean from clutch to your intercooler to your BOV (even thuogh it dont matter)?

That would give a good indication of where you are now, and how best to get the most of your $5000 as i think 280rwkw is not realistic at this stage, but it depends on the parts you currently have

cheers

[ZILR-34]

Unless you are really hands on and can get things done yourself in your backyward...and you already have FMIC, fuel pump, injectors, exhaust etc...then 5k wont get you anywhere near beign able to buy an RB30DET and turbo capable of making that power...not to mention the clutch and gearbox, what sort of life will they have with that sort of power.

Not tryign to deter you from doing it...just do your homework on how much 280rwkws costs

i already got most of the things u said i got a r33 gearbox 2. i got a compelet rb25det head & compelet rb30et bottom end. so this is my homework just want 2 find out which will be cheaper 2 set up. i can do all the my self.

how would u be able to get a rb24 from a rb20? change the crank?

[Roy]

So all you need is a turbo, assemly and misc parts...hell you already have all the expensice gear so i suggest give the RB20 to someone and go play with the RB30

[sky30]

My RB30det conversion cost around $5000, and made 312rwkw, since youve got most of the RB30 det parts, go do it, the torque is amazing compared to a RB20...........

[warpz0r]

if you have a rb30et bottom end the compression is going to be far too low. u will need to put NA pistons in it to make it the goods...

so far my rb30det has cost me on the engine alone (turbo,ecu,intercooler,exhaust)

$7000

[mr_rbman]

i already got most of the things u said i got a r33 gearbox 2. i got a compelet rb25det head & compelet rb30et bottom end. so this is my homework just want 2 find out which will be cheaper 2 set up. i can do all the my self.

how would u be able to get a rb24 from a rb20? change the crank?

Not sure if it was a mistake or not but u said you bought the rb25det head! If you did it will be a bit of a hassle putting it into an R32 as you will need the R33 wiring loom and it will also not look like an rb20 any more!

But as most have said the money you spend on an rb20, if you spend the same on the rb30 you will be laughing. I have spent close to $7000 and should be pushing somehwere between 240-280rwkw's if nothing goes wrong!

RB30 POWER!!!

[ZILR-34]

if you have a rb30et bottom end the compression is going to be far too low. u will need to put NA pistons in it to make it the goods...

so far my rb30det has cost me on the engine alone (turbo,ecu,intercooler,exhaust)

$7000

yea i saw a rebuild kit fot the Rb25/30 setup on the business Section i think it was like $3999, but for sure the pistions will have to be changed to forged ACL.

the kit inc.

ACL pistons

ACL rings

crow rods

main and big end bearings

tomei head gasket 1.2mm

nissan gasket kit

this is kinda my homework so im just geting an idea if 5grand will do the job for the rb30 or the rb20

also would i be able to run a standard ecu and just get it remaped or chiped? coz once i get it tuned i would be playin around wit the settings.

let me know wat u guys think

cheers

bill

[88silhouette]

30det

you will never look back

[TTT]

seems you have the wrong bottom end AND head.

[ZILR-34]

seems you have the wrong bottom end AND head.

and hows that? ive heard that the rb25det to bolt up to a rb30 u have to block up or weld up sum of the oil holes in the head coz it will flow to much oil in the head problem solved. as for the pistons in the block they will have to be changed if i want to run high boost levels.

[TTT]

well it would have been easier to get a NON turbo rb30 bottom end and a NON turbo RB25 head from an R32.

then you could save money on chaning pistons, welding and disabling VVT and having the correct sensors to work with the RB20 loom.

with what you have now, you will need the NA pistons (cheap option) or forged bits (expensive option), do all that welding and blocking crap for the VVT on the DET head, and use your 20det bits like AFM and sensors etc.

and since you said you have $5K to spend, It would have saved you some dollars and time is all.

I think $5K "COULD" get you 280rwkw rb30det, but I highly doubt 280rwkw could be had from an RB20 for $5K

What mods does your RB20 currently have?

[ZILR-34]

i havnt really sent any cash on the engine on my r32. ive spent cash on a bodykit and rims + respary. so the rb20det is dead stock. but if u say i could save sum cash and went to work the rb20 for 5k how much rwkw's would i be looking at? since i use it as a daily driver i want it on the raod asap with the less amount of time off road

Edited May 1, 2006 by JETR-32

[neil_se]

You're looking at an easy 10-12k to get your dead stock rb20det to 280rwkw, and then another 7k for internals when it blows.

5k might get you 160-170rwkw.