Jump to content
SAU Community

Recommended Posts

I say go with an RB30E + T, it would be far more driveable in everyday driving, I think it would probably be better in the hills with extra torque compared to a bit of extra breathing ability and I'd have to think it would be far cheaper and just as reliable as an RB25 at the power levels you're after

I am sick of the power that the car has got now i want easy 13 sec quatermile. I am happy with that so what ever it takes i wont say no if it goes quicker but it must be very reliable. i hate cars that have had all this money spent and they live in a work shop.

rb30det seems logical. Is there such a thing as a RB30et anyway?

RB30e Block rebuilt with a RB25DET VVT head on it would be the way to go i reckon. It is a very debateable topic...

I've attached a RB30DET build guide.

RB30_DOHC.pdf

How many rb25's blow up their ringlands at 250rwkw, vs rb30's that still have stock internals that survive at that power?

why is it that the top few spots of the r31 club have 100% STOCK rb30E bottom ends, except for a rb25 with forgies and gtr rods that can't even make top spot on c16 and semi's :angry: hehe

dunno who was using c16 and semi's... but it certainly wasnt me :)

And there are plenty making 250rwkw these days on stock RB25 (more actually)

Beats having to spend $$$$ on lots on SOHC head work :blink:

And what does the r31 club time have to do with it again?

Ifwe wanna get technical we can

dunno who was using c16 and semi's... but it certainly wasnt me    :D

And there are plenty making 250rwkw these days on stock RB25 (more actually)

Beats having to spend $$$$ on lots on SOHC head work :D

And what does the r31 club time have to do with it again?

Ifwe wanna get technical we can

was just some tongue in cheek stirring, nothing meant by it, i acutlaly thought u used c16 for that time, my bad.

the point with the r31 times was just an example that rb30E bottom end is just as strong and can take just as much power. im sure there are examples both ways however.

i have a RB30E+T, its done 200,000k's, gives me 10L/100k's fuel economy, has shit loads of torque and makes ~160rwkw everyday.

both motors are reliable, and ull make your 180rwkw on stock turbo/injectors, the only real difference is slight cost difference, and the feel of the motor

go for a drive in both and see which u like, the torque of the 30, or the revabilitly of the 25.

Edited by slow_r31

I would recommmend the RB25DET I have one fitted in my R31 using a turbo of a VG30DETT which I believe is the same size as standard just Ball Bearing running 14psi it makes 183 kw's at the wheels and I have run a best of 13.3 over the 1/4 @103MPH using cheap street tyres(TRX Rims for racing 17's for the street) my car weighs about 1400 kgs. For reliability I have been running that boost level for the last 18 months(54,000kms) since I purchased the car and it has not missed a beat once.

I have been to 2 Powercruise events each one consisted of 4 days(ECR). Drag Combat twice (WSID) and about 5 or 6 Street meets (WSID). all that plus I drive the car everyday to and from work which is about 400+ kms a week and I get just over 400kms to a tank of fuel.

: ) hope this helps somewhat with your decision

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


  • Similar Content

  • Latest Posts

    • Yeah, thumbsup from me. The distant shot of the bay just looks same-same as before.
    • Dad had a court case drag out with them from 1998 to 2004. He was in a not at fault accident, NRMA were the ones who covered the other person. They tried to blame his neck injuries on the fact he'd had an injury in 1981 on his extreme lower back where he slipped a single disc right near the bottom. Had been all cleared from that injury for years. This accident destroyed his shoulder, and f**ked a heap of discs in his neck, and he still has major problems with it to this day. Sarah's sister while on her L plates had a small Suzuki Alto, she had stopped to give way to an ambulance, and someone changed lanes behind her because there lane was also slowing, and rear ended her at 80km/h. (She had been stopped for a few seconds already too!). Car was completely f**kED. NRMA sent the vehicle around to 3 different workshops as they kept claiming "We believe it can be repaired, and not written off, we just need to find the correct workshop". It took 3 months, and a lot of arguing before they'd concede and wrote it and paid out. About two years later her sister had a Lancer, someone pulled out of a stop sign without stopping (in an 80 zone). Her sister swerved, hit the front of the other persons car (Instead of dead t-boning the drivers door), which ramped her Lancer, and made it roll multiple times down the road. It hit every panel on the way through. Her sister had slid her self out of the car, and remembers the ambos walking to the accident (They'd been sitting at a set of lights just down the road and witnessed it) and they were saying "Well, this ones going to be a fatality, no way you can walk away from that". Well, she did. And then NRMA sent two assessors out to look at the car, both of which wrote it off. They tried to send another assessor out, except a HUGE uproar was raised, and they FINALLY paid it out. That was on a car, that had damage to EVERY panel, you could see from 100m away the whole car was also twisted, roof bowed etc. Nah, we'll try get out of needing to payout on a $10,000 car... Her sister ended up with major shoulder reconstructive surgery being required, and was permanently limited in her ability to do her job as a nurse after that, as she can't (And was told before surgery too this would be guaranteed to happen) regain full strength in that shoulder. However, there was no choice to not have it, as she could barely use her arm, which was her dominant one, and was in near constant major pain. (And she's the type of person that would try and walk off a broken leg!) NRMA did the biggest run around on the personal injury side too for about 18 months, even to the point of trying to put 100% blame of the accident on Sarah's sister, even though the other driver admitted she didn't look, and didn't stop, and was charged by the police. Sarah used to have a Barina insured with them. It was a policy setup, paid all 12 months in advance. At the end of the 12 months, Sarah was living with me, I reviewed the renewal, it clearly stated "If you do nothing, your policy will cease on XYZ date". We did nothing, as we moved her insurance in with all of mine and I was with Shannons. We find out 10 months later, NRMA decided, because he DAD had a car insurance policy at the same address as what Sarah's mailing address was (Garaged address had been changed), that they'd put Sarah's (What should have been non existent policy) onto her Dad's month to month charges on his credit card. We had to jump through hoops, to get a refund. They didn't care that we actually found the letter that said "If you do nothing, your policy will cease" they made us prove we had NON COMPULSORY insurance else where before they'd issue the refund, and after they agreed to the refund, it still took another 6 weeks and 3 more phone calls for them to actually process it. They also had two insurance claims from storm damage, and they were an absolute cluster to get resolved as well (one vehicle, one house). Some how, up until about 3 years ago, her parents were still loyal to NRMA too, and we were like "How the hell are you so loyal to staying with them, when other places are so much cheaper, and they've f**ked you over every time you've ever had to make a claim?"
    • I got the four AN10 fitting welded up to the cam covers and started up making the head to sump breather/drain lines. The front passenger side cover I used a 45 up top and a 90 at the bottom into the stock VCT head drain spot (3/4" BPST to AN10 adapter) thats unused on the RB25DET NEO with some speedflow flame shield to protect it from the manifolds heat.   back passenger side was a 90 up top with some flame shield and 45 at the sump end. The rear drivers is 45 at both ends   the front drivers fitting is capped off for now but ready to go if i want to try moving the breathers around. I was told by the fabricator to leave all the welds raw for now to make sure there are no pin hole leaks. A lot of cleaning up, re bundling looms and degreasing to go as well as final assembly on the cam cover baffles. The first real test will be 28th March at a Circuit event. added complexity and more spots for leaks but overall looks relatively neat imo
    • Yeah i think the dash needs to come out. To get the loom or maybe just climate control and radio cluster. My mirrors are done i think the motors don’t work so well after flood haha i need the ac fan, you said you wanted to keep it for your 31 and interior loom not including boot. The wiper motor. I’m not sure how good the window surrounds are on the exterior on the pintara.  I will message you to get your bank details shortly 
    • Just another barrier put up to stop cars being modified. When we're all driving Chinese sewing machines, you won't want to modify it anyway, and you'll likely already have slashed your wrists and be locked up in a padded room for your own protection.
×
×
  • Create New...