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Running in a engine

R32 GTSTT

By R32 GTSTT,
in Engines & Forced Induction

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Skyrine-Dave Mentor

Skyrine-Dave

Posted
Posted

R31Nismoid:

ok so you are going on a chassis dyno to run the engine in.

are they going to do a full power run/tune? I understand you have a GT30 so are you going to take a freshyly rebuilt engine on a chassis dyno, do a few ramp ups to bed the rings in and then go all out 20psi 7500rpm power run and tune?

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
  Skyrine-Dave said:
R31Nismoid:

ok so you are going on a chassis dyno to run the engine in.

are they going to do a full power run/tune? I understand you have a GT30 so are you going to take a freshyly rebuilt engine on a chassis dyno, do a few ramp ups to bed the rings in and then go all out 20psi 7500rpm power run and tune?

I shall ask the question tomorrow of how it is all going to work.

But i beleive thats whats going to happen, once i drive out the roller door.

But yeah, ill find out in detail tomorrow

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
  Skyrine-Dave said:
that'd be tops (Y)

then i can get more info and pass it onto my dyno guys.

Reckon you could find out the procedure for run in to etc and what it involves? They may keep it secret tho :S

I reckon i can indeed. I was getting told the plan of attack two weeks ago as i asked about running in and stuff and i was met with an odd look (i now know why)

I was told that he was sick of running in race motors as it took so damn long, so he didnt bother anymore.

After a 6 month hiding on the track, he would pull em apart and they'd look no different to a motor than spend hours & hours being "run-in"

So no long winded running in.

anyway, more to follow tomoz

Bl4cK32 Grand Master

Bl4cK32

Posted
Posted
  Joel- said:
Mine will be thrown on a car trailer and towed down to Shauns where he will run it in there.

 

I am curious as to how spot on the powerfc's base map is AFR' wise.

 

I will find out tomorrow I guess. :D Won't I Darren ;)

Son of a bi....:) Can i borrow your guineapig suit then? :)

whistla Proficient

whistla

Posted
Posted
  R31Nismoid said:
I reckon i can indeed. I was getting told the plan of attack two weeks ago as i asked about running in and stuff and i was met with an odd look (i now know why)

haha i was met with that exact same look when i asked the same question...

mine should be due early next week and from what iv been told, by the time the car has been tuned up itll be ready to go without any "running in"

he (Ian at Amberly) said running in is an old term, when it comes to purpose built engines, all clearence and measure are done pretty much exact

who knows...but id belive what the builder says, especially if theres repuation to back his claims on engine building, not something someone wrote in a magazine

Bl4cK32 Grand Master

Bl4cK32

Posted
Posted

rings still need to be bed in properly. If they say something along the lines of what was siad above, id assume they are taking your car for a few hundred kms of run in driving....clearances done pretty much exact :bahaha: it would want to be, but rings still need to bed :)

FATGTS-R Experienced

FATGTS-R

Posted
Posted

Speaking to somebody yesterday about running in engines and was told similar to what R31nismoid and whistla said.

"Purpose built performance engines actually dont need as much running in as a mass produced ( falcon,commo) engine. Mass produced engines have less tension in the rings and therefore need a longer run in period to bed them properley. Whereas a performance engine will generally have a higher ring tension and bed a lot easier and faster. Car manufacturers have low tension rings as it creates less friction = less wear = better fuel economy."

But nonetheless rings still need to bed, no matter what engine they are in.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

do u guys know how long a motor from Holden is "run in" fpr instance??

I do... and if you find out you'd see most others' point.

The fire em up (on mobil 1 sythetic) give a squirt check everything is in order (pressures etc etc) and whack em into the cars. They dont spend hours on an engine dyno or anything bedding in rigns blah blah. Not as if thier motors dont last many 100,000's of km's

Rings dont take hundreds of KM's to be bedded in.

R32 GTSTT Community Regular

R32 GTSTT

Posted
  • Author
Posted

I took put my stardard computer in my RB30DET to start it up. I drove it to the workshop and put it on the dyno. They told me it was running very lean, so i put my wolf in and they tuned it for right mixtures up to a 4000rpm rev limit while running it in. It is geting fully tuned after ive done 1000km, since ive just got to bed the rings in. Im glad i got the mixtures checked because i could have done damage. Will find out how much power its got by wednesday.

FATGTS-R Experienced

FATGTS-R

Posted
Posted

Yes Ash, I know what the manufacturers do. I also read somewhere that sometimes the engines are taken to redline to ensure everything is ok.

But you said : "do u guys know how long a motor from Holden is "run in" for instance??"

That is a misleading comment in the sense that a new car owner is not told there engine is ready for "normal" use. You are told you have to run it in and it is in the owners manual explaining the manufacturers recommendations on how they want you to do it.

A perfect example I would love to see is the GEN 3 engine. One driven hard from the outset and one ran in on the dyno as per Holdens recomendations. And then see which one has the better oil consumption.

I dont agree that a performance engine needs a long drawn out run in process but I also dont agree that it can be taken to the limit from the get go.

Whistla wrote: by the time the car has been tuned up itll be ready to go without any "running in"

Can you ask your builder approx. how many ks will it take for it to be "tuned up"

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
  FATGTS-R said:
 

Whistla wrote: by the time the car has been tuned up itll be ready to go without any "running in"

Can you ask your builder approx. how many ks will it take for it to be "tuned up"

mine (same as mr whislta) will prob be done on dyno and thats it :)

benjiman74 Collaborator

benjiman74

Posted
Posted
  R31Nismoid said:
mine (same as mr whislta) will prob be done on dyno and thats it  :)

Hi Ash, I think you will find that he will run her up on the dyno for initial break in and tune then advise you to come back after around 500 km's. In my experience he also knocked out a few degrees of total advance during the break in period.

Skyrine-Dave Mentor

Skyrine-Dave

Posted
Posted

yeah i think i'll take mine to get the mixtures checked out, this dyno time will also be loading it up a little helping bed the rings in... once the mixtures are ok, go driving for 500-1000km's then come back and say 'boost this mofo right up' :)

Bl4cK32 Grand Master

Bl4cK32

Posted
Posted
  Skyrine-Dave said:
yeah i think i'll take mine to get the mixtures checked out, this dyno time will also be loading it up a little helping bed the rings in... once the mixtures are ok, go driving for 500-1000km's then come back and say 'boost this mofo right up' :P

exactly what i was told...and will be saying :D....500-1000kms is the critical bit, then let it fly :rofl:

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