Running In An Engine

[Sydneykid]

just so i dont need to pm you hah, what could i search on to find your article

Try "Sydneykid" and "+Bathurst+mineral"

cheers

[Craved]

here ya go

http://www.skylinesaustralia.com/forums/in...088&hl=bathurst

which way to bathurst do you go Gary? via penrith and motorway? or though bells line with lots more hills ??

[SirRacer]

good post that, mines going to be needed to done on a dyno as im going to be running an rb30 in and obviously these dont come with a rb30det computer

i dont think running the engine in on the standard injectors and rb25de computer would work to well, correct me if im wrong however.

i was planning on taking it to a dyno and getting a base tune then using the running in guides from here. good post once again sydneykid cheers.

how many kms do people run their engines in for before applying max power. ive read in a few places 5k is whats reccomended and others that 1000kms is fine, any suggestions?

[JimX]

Looking at SK's Bathurst post, I'd say 500k

[Abo Bob]

My engine builder told me 500-1000km and that's what I did. I didn't redline it until after 1000km, now has 4000 and running well.

Builder said if it was going to fail he wanted it to fail early so get stuck into it!

[Sydneykid]

which way to bathurst do you go Gary? via penrith and motorway? or though bells line with lots more hills ??

If i get away early enough (4am 'ish) I go via Bells, if later than 6am 'ish I go freeway. Traffic is too slow on Bells late in the morning, you don't get the chance for consistent, long loads.

Looking at SK's Bathurst post, I'd say 500k

Around 650 k's from first start up by the time I get to the dyno for the power tune.

cheers

[justin911]

so you didnt do the under 3-4000rpm trick at the start ??

My engine builder told me 500-1000km and that's what I did. I didn't redline it until after 100km, now has 4000 and running well.

Builder said if it was going to fail he wanted it to fail early so get stuck into it!

[mr_rbman]

how many km has your car done now mr_rbman ?

around 1500kms

[Abo Bob]

so you didnt do the under 3-4000rpm trick at the start ??

Just realised I left a 0 out of my original post but yeah I just gradually upped the revs I was using so I probably did stay under about 3500rpm for the first 50km or so.

[huddy]

interesting post

i'm about to do this on a rb24 - new rings / bearings etc... only problem is that the car is mainly a track car and not registered - i will rego it to run it in though...

has anyone else with a dedicated track car had any success with running a motor in - in as little time possible

thanks

[paulr33]

the rb30det is cheaper and youll gain power everywhere over the rb24

[huddy]

thanks... i dont want peak power and no revs... and 24 is built

[JimX]

SK did a write-up of how he runs in engines. I don't have the link handy (do a search) but basically he does a single run from Sydney to Bathurst again, and once he's back the engine is run in properly. Not just cruising up the freeway, you need to check the details. It sounds like fun to me, I'll most likely do it myself should I ever do a rebuild.

[huddy]

yeah i 'was' thinking of doing a drive from SA to mildura but thats just open driving so changed my mind. now i've decided to do about 6 return trips (150km round trip) from my house to mannum in SA - goes through twisty roads but also has some open roads - so good for putting it under load etc but keeping off boost to start with

[Craved]

SK did a write-up of how he runs in engines. I don't have the link handy (do a search) but basically he does a single run from Sydney to Bathurst again, and once he's back the engine is run in properly. Not just cruising up the freeway, you need to check the details. It sounds like fun to me, I'll most likely do it myself should I ever do a rebuild.

link to his write up is in my post just up a bit.

[R31Nismoid]

All we did was bed the rings on the dyno.

Then get stuck into the power tune. Whatever RPM as soon as it was tuned.

None of this 4000rpm, varying loads etc etc.

My RB25 was apart not long ago actually

And contrary to popular belief, A-OK. Nothing wrong with it at all.

Similar can be said for the countless RB25/RB26's that have been done this way

Running in "500km's" IMO is a myth. And that myth as far as im concerned was broken as tested by my RB25

[femno]

If you can gain access to some cheap or free dyno time do it there. I ran my 26 in by running it to the floor in 4th at about 60kph eg 2-2,500rpm at timed intervals => temps (but not flat for the first few ks). Did this for bout 100-150ks worth n that was it.

But i guess if u dont have dyno time, try n do this on a big hill.