hi all , ive been a tad naughty ive had my 02wrx engine rebuilt by api and to be fair like anyone spending over 3k would do, ive run it in carefully and as instructed for 1,100 miles taking it to 4k revs tops . but today i had an open road and no cars around so as you do i put my foot down in third to 4th and noticed the boost was kind of "surging" high and low and was whooshing out the dump valve ?! now could this be that im running an induction kit ? as before i had engine failure it was mapped with the standard airbox . im sure its not the turbo as i bought it brand new " ihi vf34 "
anyway im a worry guts it goes to david at api this wednesday for mapping so do u think it just needs a nice tune up by the sound of things ?


cheers all



Dave

 

ok so let me get this straight.

You've had a 3k rebuild, a new vf34 turbo, run it in off boost for 1100 miles, and you're concerned that BEFORE YOU'VE HAD IT MAPPED you've got issues?

How you can run it in for all that time and not wait another 3 days before giving it the beans AFTER its mapped is beyond me.

Now I know why some engine builders dont offer a warranty. They must crap it when they hear things like this.

 

Hi Dave

really i wouldn't put foot down until car is mapped,really wait few more days and later put down foot

Good luck with mapping on Wednesday

Jura

 

It did that because it's not fully mapped end of story. Take it easy until it's mapped and you won't look back. I understand your impatience but that can lead to another big bill lol

 

as above you need the car mapped after the run in

 

 

Let's hope you haven't done any harm, it doesn't sound good though.

 

 

You must dread customers like this Dave, clearly more money than sense

The amount of people that blow up a rebuild before getting it mapped shocks me, I even read somewhere that 1 lad blew his up ON THE WAY to getting mapped as he was driving like a ****

 

Dave lets just hope you haven't cost yourself another big bill for being impatient. Can't believe you would even consider driving at full chat before final mapping.

This could be a very expensive lesson for you.

 

was the engine on mineral oil still or a synthethic just out of curiosity?

 

I'm not sure if some actually know what "mapping" is and does. They think it just makes the car faster.
If they did know what is actually does they would be aware of the damage than WILL be caused by altering the cars components without mapping or giving it beans on a base map.

 

I'm waiting for the thread in 'general technical',

"my engine has gone pop straight after rebuild, why ?"

 

It ought to still be on 10W40 APi running in oil, which has as few additives as we can buy, to get the rings to bed in. Not smart " just giving it a quick try to see what it will feel like "

We've had that before, as I am sure you will expect and in many cases it has ended in tears.

We'll see on Wednesday when we map it .

 

What I find more strange is the fact that they post up their stupidity on a public forum that said tuning company use!

 

Let's say he didn't post his stupidness up on this site and on mapping day the engine let go.
Where do you stand David ?
Is it down to you to repair ?

There must be lots of idiots who thrash their cars before final mapping and do damage, where do engine builders stand ?

Obviously it's the drivers/owners fault but can you prove it ?

 

it was only the one time and no red line or anything i wasnt thrashing it guys ! i just put my foot down enough to notice the boost and that was it . it drives perfect still with no smoke and perfect idle so hopefully hes fine im surely it takes more than one blip to 5000revs to ruin a new engine once its done 1000miles ??

 

If it's not mapped correctly that's all it can take! It doesn't take much!

 

not really what you said in your first post is it and i quote

"but today i had an open road and no cars around so as you do i put my foot down in third to 4th and noticed the boost was kind of "surging" high and low "

the fact you mention no other cars were about and you put your foot down suggests to me you did nail it and are now backtracking, end ot he day i hope no damage is done and i hope the mapping goes well but was risky stuff to do it!

 

i understand u saying that cos id think the same to be honest mate ! but i changed to 4th at 5k and took it easy from there . so to get it straight so i dont get accused of being a boy racer i came round a corner in third gear and there was no cars about so i put my foot down "not to floor " i heard the problem at about 4.5-5 thousand revs so changed to 4th ! i did intend to plant my foot yes , but heard the dump valve acting up and naturally thought better not !

 

Best of luck. I hope you haven't just had an expensive lesson

 

you naughty, naughty boy...

Racer....

Hope you get away with it mate..

No bacon butty for you.

 

guys now im a complete nervous wreck !!!! what is at risk of being damaged and what can i look out for myself ? ie smoke etc ? if it was to damaged surely it would most likely be rings or something ? so would there be smoke ? seriously bricking it as you can probably tell

 

I'm sure it'll be fine mate if the turbo was only pulsing just don't do it again lmao

 

calm down. i very much doubt youve broken the engine with that one moment. its not made of chocolate!..........

 

I think you already heard the sound it will make, a knocking at around 2.5k revs usually as you come off the gas

Off outside to listen to the engine?

Now your bricking it

 

sounds smooth with no knocking and drives lovely .

 

Just curious.....why didn't you put a "running in" map on it when it was all rebuilt ?

Shaun

 

Maybe they did? I know Bob Rawle did on mine......

 

im really not sure if they did or not ? i wasnt told anything about a run in map ?