Hi all

I am having a millitek 3inch system with a 100 cell sport cat fitted tomorrow but JGM can't get me in for a remap until the end pf January, will this be ok to drive until then without the map?

 

What Car ?,What model ?, what year ?, will help for a start as some cars react differently depending on what you fit to them.

 

hi mate i drove my scoob around for a couple months with zorst no cats for couple months no issues. (i think you are suppose to get a remap any adjustment to the fuel air mix so on)

 

Sorry, my06 hawkeye jdm sti

 

Im not sure its going to be very happy with the sports cat on, the exhaust should be ok but the free flowing sports cat may cause boost spikes, especially in this weather, I personally wouldnt do it until closer to the day you have your remap.

Tony

 

Oh dear!

That's tricky!

It's booked in and deposit paid at amd in the morning.

 

Drive it off boost until the remap

 

you will be fine as long as you drive like miss daisy till its mapped....

 

with the sports cat you will be fine, yes you wont get the best out of the car but its not like a decat so wont spike.

 

Just go easy on the loud pedal mate.

Steve

 

Is it the Powerstation system with the de-cat down pipe and cat in the mid section because if so it flows so close to a full de-cat that you may well have issues with boost control.

You could bypass the boost solenoid and run on actuator pressure only to be safe.

 

Not sure I agree with this.

The miltek sports cat is very free flowing and works almost identically to a full decat.

Needs mapping asap or driving off boost.

or ...

A good makeshift solution would be to connect the turbo to the wastegate to ensure you only get wastegate pressure til mapped - that way you can still enjoy driving it but with no danger of overboost/boost spikes. Remove the existing T piece from the turbo and actuator and fit a straight vacuum hose between the two. JGM can always refit the t piece for you at mapping time.

 

I fitted a ninja 100 cell sports cat and drove it off boost or as near as (no boost gauge) for a few weeks before the remap with out any bother. V5 STI

 

Newage STI's are VERY sensitive to decatting/free flowing sports cats though, plus did you have a knocklink/ks3 fitted?

Tony

 

What's a knocklink/ks3?

 

Ok so when you say sensitive what could happen and what is a boost spike?

Sorry if that's a dim question, I'm not very technical.

 

Engine can det and that can damage the piston or lead to engine failure in the worst case,

KS3 www.phormula.co.uk

Tony

 

cell light will come on, but will be ok if you stay off boost and mapper will sort cell light during mapping.

dont listen to all the scaremongers.

 

Glad i drive an old classic LOL, i have a 3" system,sports cat, panel filter z4 ECU standard.
no change in driveability at all, knocklink only ever goes bright green on WOT, boost gauage as it was when all standard.

these new cars,pah,too sensitive LOL

 

I ran a V7 Sti for a while without a remap, I had it on a rolling road to have it all checked and it was fine, the operator of the rollers(a subaru specialist) said the same kind of thing,
decats are a big no no but the sports cats arent bad for spikes.

 

Thanks for the advice guys, I had the exhaust fitted today and it sounds fantastic , not too loud but a nice little rumble, no lights have come on yet, though I have not taken it above 4500 revs, I have also moved the mapping date forward to the 13th Jan.

 

Are you going for an Ecutek Megarom remap with proper twin maps, in gear boost control etc?

My Spec C when I had it had the standard Ecutek remap but when Bob Rawle remapped it for me I had the Megarom remap and it made a real difference to in gear acceleration and the driveability.

Good choice on the Milltek by the way.

 

Hi you can add these function as well via Open source tune on any JDM ECU

 

Very true but as JGM will be in all probability using Ecutek software I'm interested as Peter has two Ecutek options open to him.

Just offering the benefit of my experience.

 

Yes that's true.

 

Well I don't know? I will have to ask him.
Should it affect the price?
Also what are the pros and cons of the two?

 

Open source tune will be cheaper(£300 for full remap),JGM is dealer of EcuTek and don't do Open Source Remap,for Open source remap you may contact here Duncan@Race Dynamix,Rich@FB Tuning or Neil@Slowboy Racing

 

It does cost slightly more as the Megarom proper twin maps with in gear boost control do take longer to setup than the standard remap which just has twin boost levels IIRC.

It is worth doing as the in gear boost is properly setup to your selected gear and engine load.

As far as I'm concerned there are no cons and if your going to get it mapped then personally I'd go for the Megarom remap, and it helped as well that Bob Rawle helped develop the Megarom mapping along with Ecutek (plus I think he's the chosen RaceRom development mapper as well).

 

As far as I'm concerned there are no cons and if your going to get it mapped then personally I'd go for the Megarom remap, and it helped as well that Bob Rawle helped develop the Megarom mapping along with Ecutek (plus I think he's the chosen RaceRom development mapper as well). [/QUOTE]

Yes but I left him two messages and missed called him three times without reply, whereas Simon at JGM called back the same day and has answered emails within the hour, and as far as I am aware JGM are very good?

 

I wasn't suggesting that JGM isn't up to the job, I was just giving my own experiences of the Megarom mapping.

JGM has an excellent reputation and the only reason that I plumbed for Bob was distance and I had my first Impreza mapped by him on another group buy so I already knew him.

I know Bob has spent a lot of time recently mapping out of the country but I always contact him via email and usually get an an answer within 24 hours.