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R33 Rb30 Conversion

JNR24

By JNR24,
in Engines & Forced Induction

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rockabilly Rising Star

rockabilly

Posted
Posted

my rb26/30 with a gt35r 1.06 rear jun stage one cams, 1000cc injectors, twin fuel pumps, etc made 700bhp @ the fly and 660lbs torque@ the fly that was at 1.8 bar though, so yes its possible thats on 98ron pump fuel /uk we did a run upto 2.2 bar and got almost 750bhp/700lbs torque but turbo was overspinning. went to castle donnington race curcuit on friday , open pit lane and did 80 miles on track at 2 bar all day no prbs..bernie

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Duncan
Duncan

Just thought I would bump this 20 year old thread because the Skid Factory have just posted up a video summarising a lot of the content, format might be more familiar for newer members

JNR24
JNR24

fyi guys, Well yesturday i picked up a RB30 for my conversion into my R33. I will be using my RB25DET head on the RB30 block. So i started stripping the motor down, pulled the crank, pistons, girdle

Cubes
Cubes

Here is all I have at the moment: http://www.geocities.com/r32_jjc/ Unless you are on broad band make sure you right click then save as. The file is around 120kb. If there is anything I have got w

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R34NRG Grand Master

R34NRG

Posted
Posted (edited)

i want as much low - mid toqrue as possible without excessive wheelspin. im runing the .82 rear on the 3540. how much boost could i run? a friend of mine on the standard rb25 (r33) ran 26psi which i havnt seen but ppl talk to much shit these days so just wanan confirm.

ive forged the bottom and aiming for the 500hp park.. so around 370 380RWKW.....

possible with standard cams? if not how big should i go? again it is a street car so trying not to get TOOOOOO MUCH attention with the lumpy noise.

p.s max output on standard pump fuel with standard cams?

Edited by R34NRG
shanef Grand Master

shanef

Posted
Posted
i want as much low - mid toqrue as possible without excessive wheelspin. im runing the .82 rear on the 3540. how much boost could i run? a friend of mine on the standard rb25 (r33) ran 26psi. ive forged the bottom and was hoping for around 380rwkw.

possible with standard cams? if not how big should i go? again it is a street car so trying not to get TOOOOOO MUCH attention with the lumpy noise.

no way in the world with std cams - poncams would suit you pretty well

R34NRG Grand Master

R34NRG

Posted
Posted (edited)
no way in the world with std cams - poncams would suit you pretty well

was afraid of that...GOSH THIS PROJECT IS MAKN ME BROKE!!! lol

any idea wat i would crack out with standard cams?

looks like im gonna have to pour another 1.5k into cams and gears......any recommendations?

Edited by R34NRG
shanef Grand Master

shanef

Posted
Posted

low-mid 300's with alot of boost

you are better off getting some headwork so you can make more power with less boost. as SK always says, boost is just a measure of restriction - the more boost you have to run, the greater the restriction in the system

cams and gears will be well under 1k. give dan from elite racing a call on 0407 111 229 - tell him shane sent you :P

R34NRG Grand Master

R34NRG

Posted
Posted
low-mid 300's with alot of boost

you are better off getting some headwork so you can make more power with less boost. as SK always says, boost is just a measure of restriction - the more boost you have to run, the greater the restriction in the system

what sorta headwork? and how much are we talkn $$$ wise.......far out this is not going well lol......

sorry guys wen it comes to engines im very new to it all.

i guess if i hit 350 i would be happy....

R34NRG Grand Master

R34NRG

Posted
Posted
cams and gears will be well under 1k. give dan from elite racing a call on 0407 111 229 - tell him shane sent you :P

hrmmm sounds good, where abouts is dan located? QLD? because im in VIC

im picking the car up on thursday after a good 4 months so cant wait....but now im not sure if i should delay it for the cams now

shanef Grand Master

shanef

Posted
Posted
hrmmm sounds good, where abouts is dan located? QLD? because im in VIC

im picking the car up on thursday after a good 4 months so cant wait....but now im not sure if i should delay it for the cams now

yeh he's in qld. he can get the cams sent anywhere though

R34NRG Grand Master

R34NRG

Posted
Posted
yeh he's in qld. he can get the cams sent anywhere though

yeh tru, although i always rather speak face to face.....lol

well ill keep u guys posted when i get my car back....honestly i dont know what the hell to expect......i hope the rb30 holds its reputation for delievering lol.

Sydneykid Grand Master

Sydneykid

Posted
Posted
Have no intension on spending more money, so unless he is willing to do it for free, i have no need to speak to him :)

Spoke to two engine machinists and also an avionics engineer, that builds and repairs aircraft engines, all have stated that a pinhole in the block is almost impossible to see/find. A crack is different as it is bigger, etc., but a pin-hole would not show up on the x-rays or sonic tests.

Either way, i bought the block through my mechanic, so it is still being replaced, at no expense to me. But i will seriously consider buying the piston rings and passing the other info onto my mechanic, even though i am confident in his abilities.

Ok, I will bite..............why don't you just get the pin hole welded up in situ? Take no time at all on the hoist with a Mig.

The real question, how come it has a pin hole in the oil gallery anyway? Being oil filled, it's not gunna rust through like a water jacket.

My guess would be a crack emanating from the oil feed for the turbo or the oil return. That happens when people over tighten the fittings.

Sorry but after building over 40 RB30's, I just don't buy the random pin hole reasoning.

Cheers

Gary

Al Grand Master

Al

Posted
Posted
Ok, I will bite..............why don't you just get the pin hole welded up in situ? Take no time at all on the hoist with a Mig.

The real question, how come it has a pin hole in the oil gallery anyway? Being oil filled, it's not gunna rust through like a water jacket.

My guess would be a crack emanating from the oil feed for the turbo or the oil return. That happens when people over tighten the fittings.

Sorry but after building over 40 RB30's, I just don't buy the random pin hole reasoning.

Cheers

Gary

The repair of the hole has been lightly discussed over the phone, but i personally would feel more comfortable with the block replaced, especially for the fact that it is only going to cost me time and maybe a set of piston rings. As you have stated; i too am not convinced that a pin-hole would appear without a crack on the other side. Which still means that the machinest hadn't done his job properly, when crack testing the block.

Don't know how it happened, but i do know that it is not located near any fittings.

PS: Haven't seen my mechanic since Wednesday morning; has the sway bar been repaired and sent back? It had not arrived yet, by the time i left at 11am.

Alf Proficient

Alf

Posted
Posted (edited)
The repair of the hole has been lightly discussed over the phone, but i personally would feel more comfortable with the block replaced, especially for the fact that it is only going to cost me time and maybe a set of piston rings. As you have stated; i too am not convinced that a pin-hole would appear without a crack on the other side. Which still means that the machinest hadn't done his job properly, when crack testing the block.

Don't know how it happened, but i do know that it is not located near any fittings.

PS: Haven't seen my mechanic since Wednesday morning; has the sway bar been repaired and sent back? It had not arrived yet, by the time i left at 11am.

Were any pics taken of the problem?

Edited by Alf
Spoolup Mentor

Spoolup

Posted
Posted

Went 560 rwhp today on 23psi, and then started to lean out again.

Current setup is an 044 intank feeding a 044 in line - all on 98 BP fuel.

I think Ill have to go twin 044's and a surge tank to overcome this problem. Wanted to keep away from fuel pumps in the boot etc but cant see any other options now.

shanef Grand Master

shanef

Posted
Posted
Went 560 rwhp today on 23psi, and then started to lean out again.

Current setup is an 044 intank feeding a 044 in line - all on 98 BP fuel.

I think Ill have to go twin 044's and a surge tank to overcome this problem. Wanted to keep away from fuel pumps in the boot etc but cant see any other options now.

you could possible fit an aeromotive a1000 under the car

i was originally gonna fit mine under the car (32 gtr) but decided it would be easier to run it in the boot because of the fuel cell, and its a drag car now

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