New Engine Blown Up At Tuners

[joe blo]

hi guys. just got my skyline back today. its a rb25-30 motor. standard head, standard rods and new cast mahle pistons.

he said he did one pull only on it after tuning. it made 450rwhp on 17.5psi and blew heaps of smoke out the back (think he said that) and was coming out the breathers on the engine.

he said the pistons would be fine for it (i already had the motor done and all that). after i got it home my engine bay is covered in oil from the breathers. (didnt have catch can on yet, just open breather pipes

if it turns out to be from detonation can i make him pay for new motor?

Edited July 29, 2011 by joe blo

[N1GTR]

Is it actually broken (eg rattles and clunks) or is it fine except for oil coming out of the breathers?

[joe blo]

Is it actually broken (eg rattles and clunks) or is it fine except for oil coming out of the breathers?

no rattle and clunk noises im pretty sure. runs abit rough on idle and its different to start then before. hard to start but does go

has the 2 1.5mm oil restrictors put in and spool oil drain back kit for rear of head

what are you thinking? hope it may just be broken ring

Edited July 29, 2011 by joe blo

[32_Dave]

if it turns out to be the tuners fault, did u sign any paperwork?

[SimonR32]

Sounds like a poorly assembled motor more than tuner failure... Who built the motor?

[joe blo]

just a receipt from when i paid. about 4 weeks ago i got the car back. car wouldnt rev over 4500 in neutral and boost cut would hit at about 4000rpm if you could rev it that far and had boost cut from ecu at 20 psi. i had to ge the car back and take the wastegate off myself and fix the thread for the hose then put it on and go back to get the tune finished. in that time i put a 50mm gate on instead now but. today was the finish tune day

[R31Nismoid]

^ +1 to motor assembly.

If its not knocking, rattling etc and breathing that heavily... Does not sound good at all for the build.

[XRATED]

if it turns out to be from detonation can i make him pay for new motor?

What is this..... america???

You'r playing with modified engines... it happens. If you think your tuner did somthing wrong, don't take the next one to them..

Or was it the engine builder?

Or the injector manufactuer

Or the spark plug factory

oooor maybee it was the sneaky fuel supplier

hang on.. I have it-

Mr spanky with a candle stick holder in the sitting room.

[joe blo]

Sounds like a poorly assembled motor more than tuner failure... Who built the motor?

ah forgot that part. i put the crank in myself and couldnt get the rods and pistons in so got them put in at machining shop. then picked it up and assembled the rest myself

[R31Nismoid]

lol

[ARTZ]

Sounds like a poorly assembled motor more than tuner failure... Who built the motor?

yup doesn't sound like anything to do with tuner...

[joe blo]

if its my fault then i accept it lol. i did drive it for about 200kms before power tune but with the tune the guy did first time

[N1GTR]

This is some sort of Friday afternoon joke right?

Any tuner can only do his best with what he's given. If the setup (hardware inside engine) was crap before it got there, it wont magically get fixed on the dyno.

I was going to say that if its still running fine and not making any noises then it may be a lack of oil control thats got you so concerned

[R31Nismoid]

ah forgot that part. i put the crank in myself and couldnt get the rods and pistons in so got them put in at machining shop. then picked it up and assembled the rest myself

How was the motor run in?

Did the machine shop actually measure all the tolerances and so on, or simply assemble and return (which assumes you measured it all up).

[joe blo]

yup doesn't sound like anything to do with tuner...

cool. hopefully thats the case.

the problem will be shown when its pulled apart yes? it wont be mystery failure form me putting it together?

[R31Nismoid]

cool. hopefully thats the case.

the problem will be shown when its pulled apart yes? it wont be mystery failure form me putting it together?

If it's pulled apart by a professional, then yes.

By the sound of it, and no offence, if you DIY you aren't going to find out.

[joe blo]

How was the motor run in?

Did the machine shop actually measure all the tolerances and so on, or simply assemble and return (which assumes you measured it all up).

motor was run in on dyno by tuner guy.

the machine shop bored the block and supplied the pistons. and they measured the bearings and provided the ones i needed

the standard rb25 i pulled out had 6 broken pistons and didnt make ANY bad noises. drove it for like 1.5 years as a smoke machine and it made 250rwhp smoking HEAPS

[joe blo]

if its from poor assembly i totally accept it. it was a learning thing. if its from me i dont think il bother learning anymore lol.

the big thing for me was going to be if it even started and worked properly in the first place. lol

after the first startup and first tuning went well i was convinced i had done a good job done properly

Edited July 29, 2011 by joe blo

[Room42]

Tell me which tuner in their right mind would pay for someones engine if it broke on the dyno? Almost anyone can slap a motor together and have it last for a couple of runs/weeks. You gotta know more about engine building than just bolting it together with the right torque settings.

[joe blo]

my main concern about the guy possibly owing me a motor was that if it has broken a piston from detonation. that would be his fault wouldnt it? and wouldnt be caused by poor assembly?

Edited July 29, 2011 by joe blo