Jump to content
SAU Community

Recommended Posts

lol...where did you hear that you Wally?...im sure that was only in your mind.

Im talking about non-obtrusive, quiet, unasuming, but very powerful stock looking and sounding cars. I hate driving my car...even the small distance from the shed to home (and you know how close that is). This car i could have easily driven around in all bloody day.

i didn't throw that RB30 bottom end in the tip to regret it...it was exactly that...rubbish. :)

lol, ok ok

Shouldnt you be calling the tip for me soon? :(

  • Replies 241
  • Created
  • Last Reply

Top Posters In This Topic

Exactly....it makes 10+psi @ 2500, hence the big torque early.

Some more details:

Crank is a custom billet 12 counterbalance job. Don't try to rev those RB30 cranks too high!

Rods are SR20. Don't sweat the R/S ratio. 1.5-1.65 has proven to be ideal/desirable for a 4 valver in the 1-9000rpm range.

Modern materials and rod/piston designs mean longevity is not an issue, and shorter rod is a stronger,lighter rod.

Pistons are custom.

Camshafts are Nissan OEM.

Turbos are currently Garrett -5's, (about to make way for a very slightly bigger set).

We have now have it tuned at 24lb and it makes 468kw with plenty more through the mid-range.

I'll post a new dynograph when I get a chance.

Lots of sneaky tricks in this one. I probably shouldn't have sold it after all..... :)

cheers,

Garrett -5's and 468kw ??? this must have been on an engine dyno...right? :(

Was the crank originally an RD28?

i thought the limit of -5's was alot less? without being 100% familiar with 'dash fives', are they one specifc turbo, or are there different sizes? last GTR i saw running -5's was an R32, making ~425rwkw on 116 octane, and it appeared there was nothing more to give from the turbo side of things, unless there are bigger -5's?

yes i envy this motor...

its power is like electricity...you cannot see it...you cannot hear it...you cannot smell it...but boy you can feel it.

Dave, Ron Harrop can help you out with a crank...he is in Melbourne.

Edited by DiRTgarage

They wouldn't make that power on pump fuel without some enlargerment. The compressors simply do not flow enough air. Hence why I asked if it was engine dyno'd....since the best engineering shops will only tune this way. Torque can be measured to .1 ft lb which gives a very very good indication of cylinder pressures.

I wouldn't be suprised to see that type of response on a 2.9 from modified -5's, baby cams help aswell

  • 1 month later...
They wouldn't make that power on pump fuel without some enlargerment. The compressors simply do not flow enough air. Hence why I asked if it was engine dyno'd....since the best engineering shops will only tune this way. Torque can be measured to .1 ft lb which gives a very very good indication of cylinder pressures.

I wouldn't be suprised to see that type of response on a 2.9 from modified -5's, baby cams help aswell

Ben has tried more than 5 turbo combos on this engine alone, while logging temps and pressures.

You would be amazed at the power some of these little turbos can make.

As far as I know the turbos are off the shelf -5's.

.64 turbine housing.

I'm glad you assume the compressors wont make that much power.....apparently it is actually the turbine that is getting close to the flow limit.

Same turbos on a F355 Ferrari also make over 450kw @ wheels on only 16psi (different dyno).....

My own track car with 2.6 engine and -5's makes over 400kw @ wheels on pump.

This engine is the culmination of 8 years of Race Pace RB development.

It was built as a challenge for a stock appearing/mannered engine to have monster power and response.

In the last 12 months it has seen over 10,000km of road use and various track/tarmac rally events and is still going strong.

I want it!

Edited by JFKGTR

Seeing as the car with this engine is for sale, I might as well spill some of the 'Ben's secret specs'

Custom billet crankshaft 84mm stroke

Custom titanium rods

Custom forged pistons 86.5mm bore

Custom chamber/port shape

Variable cam timing

12 injectors

Thats the basics, Im sure there are lots more tricks in there.

Edited by JFKGTR

I cant confirm it - but have heard rumour that the was some deal done too.

Something about soul and sold to the devil. My personal theroy is that he is the devil - or at least the dark son of rajab of RB's

On the subject of secrets - I want to know how he keeps his shirt so clean?

:)

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

    • Yea - I mean I've seen my fuel pump which is decades old and uh, while I'm not saying this with real knowledge... but I sure get the ick at using anything in the fuel system that produced the state of that pump. Many years ago I went through multiple pumps (and strainers) before I dropped the tank to clean it out with extreme violence. I'm talking the car would do maybe 50km before coming to a halt, which resulted in me cleaning out the filter with some brake cleaner and going on my way. None of my stuff ever looked like what came out of your fuel tank. I don't think I'd be happy with it unless every single component was replaced (or at least checked/cleaned/confirmed to be clean here).
    • I'm not going to recommend an EBC pad. I don't like them. Just about anything else would suit me better. I've been using Intima pads for a while now.
    • Agreed, and in particular the earth strap that should go from the subframe to the chassis but it often broken or left off. There is a section in the R32 workshop manual you can follow for troubleshooting if you don't see anything suspicious, and depending where you are (there is no location on your user profile) you should be able to get your hands on a second hand replacement unit still if needed
    • Yeah they mention as a R34 for 2.5 Turbo...but then again thos "small" were also for R34 by that different site. But i look into it and that 310mm EBC is for R34 GTT. And by those you linked the specs are the same 🙂    EDIT: I found these on one site here: DBA 4000 series T3 DBA42304S They are 310mm...and it says are for R34GTT...are there good? EDIT2: ok they have pads too.  What "color" should i get for street use? I dont want/need some noisy ones...(and if they are not that dusty that is good too)
    • Yeah, shame. Maybe  driver's carpet is available 🙏. I am waiting for both amayama and nangun to confirm.
×
×
  • Create New...