hi ive bought a boost controller and i am thinking of turning my boost up to 1.5 bar rather than 1 bar. is this safe to do? its a td05 turbo with a scooby ecu chip. cheers

 

The turbo will do it, but will your fuelling be up to scratch?

 

well its standard would i need a uprated fuel pump?

 

No is the easy answer..

if you have supporting mods and remap you can run that much.. however looking at needing:

uprated intercooler,
injectors as a minimum.. that is without considering coil packs, head gaskets etc etc..

Simon

 

This is exactly why I'd never buy a car with a manual boost controller fitted !!

 

im running 1.8 bar of boost on my95 wrx and had no problems yet and it goes like stink.its runnind a tdo5, uprated fuel pump, super chip, apex induction and fillter, adjustable fuel reg, go for it mate but just make sure your giving it enuf fuel

 

do u have a manual boost controller? ive got a electronic one they have a saftey feature on them so if you turn boost to high they cut out intead of damaging any other parts on car

 

I think there is nothing wrong with the manual boost controller, if and only if it is used wisely.........

but with boost controller the thread is going to wrong direction, IYSWIM

Simon, please continue
what should be done to be safe running TD05 at high boost , on a ra sti ver2 for example.


subscribed!

 

thats might point you get it wrong with a manual controller you will be spending money electronic controllers are a safer bet

 

what about fuel cut? Unless uv got something that removes it, i dont think the scooby ecu moves fuel cut that much higher than standard. Or am i wrong?

You can always get it altered of course by a specialist

 

most boost controllers cut when you are running to much boost (you have turnt it up to much) so it just like a fuel cut so turning down you controller that little bit will solve it others have pre-set modes ie 1 bar 1.1 bar etc so you would just switch to another mode

 

Considering the boost control cabablities of modern day ecu's aren't boost controllers a bit old hat ?

 

ive only got a panel filter full ss zourst i was running 0.7 without the controller with the controller i can turn it up to 1.4 with no probs at all trust me you notice the difference

 

I'm finding this extremely hard to believe. I have never heard of a standard TD05 16G running that much boost. Mine is all but maxed out at 1.5 - 1.55.

I await any experts that know differently....


<---------------- Mine is running very safely with these mods. Never see a knock count over 30 now.

 

your right max on a TD05 is around 1.5 maybe abit more but thats it

 

correct me if im wrong but I didnt think the standard MAP sensor could read above 1.2bar so a boost level above this and the ecu aint gonna have a clue how much fuel you need.

not only that I was told the standard 380 injectors would be maxxed out at 1.2 bar.

I may well be wrong but I think you should find out the answers to the above from an expert before your engine decides to eat itself.

 

If you look at the compressor map for a TD05H-16G, it is absolutely maxed at 1.8 bar IIRC, way down on efficiency and basically just spitting out hot air, and it's nowhere near maximum airflow either.

 

I've regularly seen WRX detting at 1.1bar unless the timing is adjusted to suite.
you can put a fuel reg on but the ECU will still try and run what the map tells it too.

 

max boost on my td05 all standered was 1.5 as i found out when a boost pipe came off an was told by subaru that you couldnt go over that with out a better ecu. So they said.

 

People have upped their boost successfully, but I have not heard anyone on here going any higher than 1.3 bar without re-mapping.

The guy I am referring to runs a Z4 ECU with 1.3 bar boost and he 'says' he has no detonation and 319 bhp, backed up by a RR report. Whether you choose to believe it is up to you. However, if you do decide to go mad with the boost level you will be taking a risk with your engine.

Although the flat 4 is reliable it is already in a high state of tune and increasing boost manually is risky. If you do decide to go ahead you will need an FCD, as the ECU will cut fuel at 1.1 bar.

Each to there own. .

 

I ran 1.5-1.6 bar through a TD05 16g in my last car which was a 1995 WRX with no probs, obviously running a hell of a lot of other mods to support.

 

fmic, 550 injectors, walbro pump, decat, air filter, mappable ecu.. upto about 1.4bar.. may need a z32 maf to go higher as the maf sensor will be maxxed out.

Agree a manual boost controller can be put to very good use if used sensibly and the fuelling set up correctly.

Simon

 

I already got:
1. Apexi PFC + Controller
2. Hybrid's new RS spec
3. 650cc Sard Injectors
4. Walbro 341
5. Sard Fuel Pressure regulator
6. Trust greddy power revolution2 turboback
7. Apexi Power intake
8. ZT2 wideband

Can't wait to put all above on my car. Just waiting for some bits.

 

or go for a mappable ecu which is MAP sensor based and not MAF ?

Dave

 

Yes.. but Apexi PowerFC + z32 maf is a lot cheaper than any MAP based ecu.

 

Is it?

A local company to me do a simtec MAP based ECu for 950 inc vat and mapping?

Dave

 

Does that include an upgraded MAP sensor? Pre-97 sensor only reads to 1.23bar (ish) so if you want to run more on a MAP based ECU you need another MAP sensor fitting.

Andrew...

 

I will have to check!

Dave

 

Does anyone know if the ESL live map is MAP or MAF based?

(Also I noticed a jolly green wagon in Allenton today)

 

I would say thats MAF based, as it uses the std ecu which in turn uses the std MAF.

and the simtek ecu package does not include the MAP sensor, its 50quid + vat.

Dave