cabbbb

Just had some work done on my 00uk turbo:

1. Downpipe with fast flow cat (allready got back box and de cat centre pipe)
2. Uprated fuel pump
3.New magnecor HT leads
4. New MAF sensor
5. uprated panel filter
6. Re-mapped (ecutek)

Had this work done along with a full service (total bill with servicing almost £2k)

Was making 227hp when dyno'd before any work done but was told MAF was faulty. Had this replaced and the all the other work done (minus the map) and got 219hp. After doing the mapping i got 249HP on rollers !!

To top it all off the car went into safe mode within half an hour of leaving the garage on way home. Had a two hour journey home at 50mph. Am i unlucky or what !!!!!!!!!!

Car now sat on driveway awating another new MAF to hopefully put things right.

Now i'm certainly not on here to run down the company (which will remain anonymous) that did the work as they've spent a lot of time with my car and are still helping to get it sorted now and are doing a top job. But i was wandering what peoples thoughts were on why they think the car is making so little extra horsepower following the work done ?

I cant really comment on how different the car feels as i didnt really get chance to try it?




Cheers

ps. feeling a little like i've not really got very good value for money !

New_scooby_04

iTrader: (4)

All being well, you should be getting about 270ish bhp and similar (if not more) torque. Would certainly be very obvious on the road.

As for why the car is not making the expected power; well, could be a multitude of reasons, some very minor, others potentially serious. This is what the cpmpany you're using now need to find out.

Keep us posted on developments.

Butty

iTrader: (2)

I'd have been pleased at 270/280 hp for a sports cat with remap, but you've got an underlying problem with std car.
Is it definitely the MAF as a cause for going into safe mode?

I'd pay to have the car connected up to some data logging software and take it on the road to see what is playing up.

powerwrx

iTrader: (11)

i went from a standard 215bhp on my uk bugeye wrx to 255bhp with a full decat exhaust, walbro fuel pump, STi panel filter and Ecutek Remap. i was expecting around the 270bhp mark but only got 255bhp on the rollers

winkie39

Something not quite right there, I have an MY00 Uk car factory 218 bhp. I fitted a K&N panel filter, centre decat & a Magnex back box and got 247 bhp. Contact Scooby clinic, rates are good and they are about the best you can get. Had a friend spend similar money with them and got an additional 65 bhp on an 07

JDM_Stig

iTrader: (3)

I take it the mapper didnt find any issues when it was being mapped?

Coffin Dodger

What fault was it reporting that put it into safe mode? I assume it was the MAF if you waiting for another. The map might not be right if the MAF was reading incorrectly?

As above anything over 260bhp would be a bonus with those mods, some cars might not even make that. However in the increase in torque and overall drivability that make it worthwhile.

Boro

iTrader: (1)

Thats a shame, i think i would have been driving in the other direction rather than 2hrs homeward!

Needs to go back to the tuner to be fixed.

Midlife......

iTrader: (2)

Does the UK MY00 Turbo have a TD04 Turbo ?? If so, then about 250 BHP BHP would be about right at the air temps at the moment.

Shaun

ZEN Performance

Ignoring the peak power figure, what is the difference lower down the rev range, at say 5000rpm? And how does the peak torque compare?

axgt_bwaii

iTrader: (6)

also take into consideration some dynos do tell the truth!

+Doc+

Sounds like there is an underlying problem here, hope you get it sorted quick.

cabbbb

Peak power was suffering, although the figure obtained was quite flat really with a bit of dip at around 5000rpm then picking back up slightly then never really rising much after that. They were struggling to attain a high enough boost higher up the rev range. To overcome this they tried inserting a more restrictive 'pill' (i think thats what they called it anyway !) in a pipe leading from the turbo to help with the boost (peak power was around 240 prior to that). The torque figure was up aroung the 270 mark (which i am pleased with).

I was told the MAF was faulty after they tried the initial mapping. Got a brand new MAF from Subaru and they tried to map again. It seems that this MAF lasted the duration of the mapping session + road test/road mapping + me driving the car for about half an hour (in traffic) before it failed.

Do you think the new MAF i purchased was faulty from the start? as there was a problem with getting the car to tick over as smoothly as it did pre map.

Sorry for all the questions/ranting on. Just after advice really on how to handle the situation with the tuner as i'm new to car tuning and not sure how to play it. Think i'm gonna ask to have the map checked again on the rollers to check all is well running another new MAF. Don't think that's too much to ask is it?

Cheers


PS. thanks for all your replies. They are much appreciated

scoobysmiff

iTrader: (2)

I wouldn't be asking mate, I would be telling. If your not happy then they need to sort it out, if it runs worse now than what it did before they carried out the work then they have an obligation to deal with it imo

t7srt

iTrader: (2)

My RB5 with those mods made 257bhp and thats pushing it for a std TD04, The minor improvments you make from here on, (bigger turbo, better intercooler) will yeild alot more power for your money,
Dont be dishaertened as you have only just started your journey and the first mods to get you over the std power are usually the most expensive.

If all the parts were brand new then it doesnt sound a bad price, perhaps in the future take some advice from the members on here and pick up some bargains to gain extra safe power,

My Rb5 is now running circa 350bhp with my biggest outlay being Simtek, Although destroying 8 MAFs in a year pushed me towards a stand alone ecu that uses MAP sensor instead of MAF. It will pay for its self in 18 months

Good luck with the slippery slope you have just found, there is reward at the end

Butty

iTrader: (2)

Is the new MAF definitely the cause of going into safe mode?
Repeated failures of 99/00 MAFs have been put down to vibration, wiring problems or oil contamination from heavily oiled filters or crank/head breathers.

AlanPPP

iTrader: (2)

Sorry to hear about your problems mate

I'd say pick up a TD05 turbo mate and you'll see a lot more power..BUT you'll lose a bit of low down push.

Tidgy

my uk turbo was very similar indeed, 258bhp after decat and map, now just over 340 bhp

mine spat 2 mafs out during mapping before deciding enough was enough and going autronics

my first stop is the tuner who did the work, internet diagnosis is unreliable at best and can cause issues down the line. go back to the tuner and let them sort it, its what you paid for.

joz8968

iTrader: (13)

I'm sure you've covered this, but...

Is the 227 before mods @flywheel... BUT 249 after mods @wheels?! You are defo comparing LIKE FOR LIKE, yes?

Because if 249 is at the wheels, then that will equate to pretty much 280 @flywheel (which is obviously what people/tuners/specialists/manufacturers quote).

Just a thought before probing further...

Coffin Dodger

Sounds like a bodge! Fit a three port boost solenoid and forget about the stupid restrictor. AFAIK you'd use a less restrictive restrictor for more boost

Tidgy

should add the mafs on mine was spat out mapping on a vf34 and a front mount

joz8968

iTrader: (13)

cabbb, if you do want/need a 3-port BCS, then I have a nice, compact A'PEXi for sale...

https://www.scoobynet.com/private-sa...nt-grille.html

172sport

iTrader: (6)

Wasted money on the leads and filter imho, std are better....

Tidgy

dont see why a 3port bcs is needed, i ran mine decatted and rempaed for 2 years without needing one

Tidgy

leads are a waste, filter will help 1 or 2 bhp, only around £40 and if the origional has been on sinces new could prob do with replacing anyway to remove any built up crap

justy75

Sorry to hear those performance figures! Have you had the issue resolved as there must have been a problem. I have a 54 plate wrx, and i have a 3" cat back system, cold air feed, dump valve and a remap and I have 279 bhp, standard turbo doing fine. Just interested to know whether it was the MAF sensor or something else.

MartynJ

It isn't a bodge, it is how the standard 2 port system works. By altering the diameter of the hole in this pill you can raise or lower the boost as you see fit , the smaller the hole, the higher the boost.

I agree though with your statement about fitting a 3 port solenoid, and do this on a regualr basis if the customer has the budget.

jonny_693

iTrader: (5)

A TD04 wont max out till around 280bhp. What joz says makes sense

dunx

iTrader: (3)

A new-age WRX in our club has just battered 300 bhp on the std turbo (TD04?)

dunx

doormatty

Ok im running a 55 WRX
no remap done
just a prodrive ecu
ninja exhaust
k&N air induction kit
upgraded TMIC
and a std TD04 turbo
was on a rolling road a few weeks back and came back with 301bhp
but what is a MBC