st3ph3n Posted January 25, 2007 Posted January 25, 2007 Right, the globex corporation has provided some funding for project Arcturus so I've been sourcing some final bits. Car is a 2005 WRX and it'll be going full decat - I have this in hand. I have the prodrive/samco IC hose installed on the stock WRX IC. Brakes, suspension etc. are fine for the moment. Clutch is shot but that's in hand too. So I'm left with I think 3 things to sort out that I know of. Plugs - will I need to get a better set before mapping? Fuelling - will the standard WRX fuel pump cope with ~290bhp which is what I hope the car will make after mapping. If not then the Walbro is the best option? Intake - I've asked this before, but I'll go again. I know the standard intake is good enough for 300+ but would it be worth it to upgrade to a CAI? They all claim extra horses but that's marketing for you. Will I see real world benefits? If anyone thinks of anything I've missed please shout now or forever hold your peace.
wilky Posted January 25, 2007 Posted January 25, 2007 1. PFR7Bs ,set the gap to .65 they will last you 10 000 miles at a time. 2. For fuelling issues peace of mind is a walbro 255 and a FPR either SX or Sard SJ. Set the pressure to 46psi until you get to Andy, if he maxes your injectors he can give himself a bit of headroom with the pressure on the FPR. 3. Keep your temp as low as you can. some say keep the standard intake and go panel filter upgrade, I say go CAI, the lower the better. Every degree of them you can lower potentally gives you 1 HP. 4. Leading off of that, an STI 8 or higher intercooler is a good buy, means Andys magic will be all the more effective, if funds allow. 5. Dont map with OB for your type of needs, keep it VMAX. 6. Put some decent oil in your gearbox and fill it just above the full mark so that second always has oil. Callum W
fai17 Posted January 25, 2007 Posted January 25, 2007 You know what the CAI will sound like when it's in so for that alone i think it's worth it. You'll need plugs,fuel pump and full decat. What clutch are you go to go for?
st3ph3n Posted January 25, 2007 Author Posted January 25, 2007 Clutch is still to be decided Peter, but what we discussed is the current leader. We'll have some words on Saturday. The pipes were sourced last night, so will sort out the rest in the coming month hopefully. Not sure if it's all go for a pre-trackday remap or not. Might just skip it and use the cash to finish everything off.
STi_Bandit Posted January 25, 2007 Posted January 25, 2007 Just a suggestion, but when removing the uppipe cat in your WRX stephen, would it be an idea seeing's how the headers may be off to get them ported and polished give you better spool up. Just a thought Bandit
st3ph3n Posted January 25, 2007 Author Posted January 25, 2007 Ah yes, interesting point Mr Bandit. Any thoughts anyone? One other thing - wrapping. Should I get anythign wrapped whilst it's getting sorted? Up pipe possibly?
ANDYJDMSTI Posted January 25, 2007 Posted January 25, 2007 Wrap your downpipe.........and if you make a good job of it you can do my exhaust when i get back []
fai17 Posted January 25, 2007 Posted January 25, 2007 Just a suggestion, but when removing the uppipe cat in your WRX stephen, would it be an idea seeing's how the headers may be off to get them ported and polished give you better spool up. Just a thought Bandit Good idea Bandit
colin_ross Posted January 25, 2007 Posted January 25, 2007 If anyone thinks of anything I've missed please shout now or forever hold your peace. How deep are your pockets crazy horse?
wrxmania Posted January 25, 2007 Posted January 25, 2007 I have a Helix Organic clutch on mine and it seems to do the job nicely. I wonder if adding some more oil to the gearbox will smoothen out and protect my 2nd gear when cold? Any thoughts Wilky? Brian []
higgy Posted January 26, 2007 Posted January 26, 2007 Speak to Collin at Greers for a exedy organic clutch , comes in at a good price and can take a beeting. Stay with your original airbox as it is more than capable at runing the power you will be getting. You will also need to fit the 255 fuel pump and i would recomend a set of sti pink injectors(550cc) Oh and put a sti panel filter in the airbox. Remember i was runing 334bhp and 330flbt and i had all of the above, including the plug that Wilky was on about. Good luck. Higgy
st3ph3n Posted January 26, 2007 Author Posted January 26, 2007 higgy, that was the very clutch I'd been considering. I thought the WRX injectors would cope fine. Remember this will all be done on the stock turbo. Still not sure about the CAI or the airbox. I will do some pricing.
WUZ Posted January 26, 2007 Posted January 26, 2007 I woul think carefully before setting the fuel pressure at 20psi................VERY CAREFULLY! Hopefully Wilky made a typo error there. Russell
wilky Posted January 26, 2007 Posted January 26, 2007 Woops! Your quite right Russell thank you for pointing that out. Thats what andy recommends when you up the injector size as a "LIMP HERE AND ILL SORT IT OUT" pressure. the pressure you should set it to is about 46 psi Andy will adjust it accordingly. Had a senior moment, original post edited. Callum
drb5 Posted January 26, 2007 Posted January 26, 2007 I thought the WRX injectors would cope fine. Remember this will all be done on the stock turbo. I'd have thought so too. IMHO, your fitting a few parts here that don't need a remap, so consider sticking with the panel filter till you are fitting a couple of parts that are in need of a mapping session. I'll ALWAYS say, the standard ecu's are a great thing. People were surprised at how i got over 320 hp out a standard Subaru ecu. Little do they know, and you can ask him if you like, Andy got over 420 hp on a standard Subaru ecu.
st3ph3n Posted January 26, 2007 Author Posted January 26, 2007 Dave, I'm not keen on running a full decat on the standard map. Especially if I'm going to be tracking and dragging the car. Which as we all know I am more than partial to. [] I know with some careful monitoring of all the variables I could probably run with it, but I don't want the nagging feeling that it's even a bawhair out on the fuelling and end up with a major problem. ~£500 for the licence and first map is well worth it for the health and safety of the car.
fai17 Posted January 26, 2007 Posted January 26, 2007 When is your big day for mapping? I know alot of people have said that a standard airbox will cope upto 330bhp but i would still get a CAI for the noise alone. I wouldn't fancy running a standard map on a standard ecu for any great lenght of time as i think it's a time bomb......better to spend the cash and gain extra power and the knowledge that your engine is in safe hands. Yeh standard newage ecu are great so that why there are loads of people using ECUTEK on the standard ecu. So St3ph3n,what are your final list to do before mapping session? 300bhp is really hard to get on a standard TD04 unless you went for a TD04H.
drb5 Posted January 26, 2007 Posted January 26, 2007 Dave, I'm not keen on running a full decat on the standard map. Especially if I'm going to be tracking and dragging the car. Which as we all know I am more than partial to. [] I know with some careful monitoring of all the variables I could probably run with it, but I don't want the nagging feeling that it's even a bawhair out on the fuelling and end up with a major problem. ~£500 for the licence and first map is well worth it for the health and safety of the car. Your hearing to many people telling the same old myth and believing it Stephen. There is a lot of things out there which just aren't true. Remember that things have moved on from the days of the classic. Things should be better now... Plenty are still running a full decat with standard ecu, as a remap is simply not needed. I say do yourself a favour and start putting parts together just now, but don't fit them till you have all the bits you want. Then the car, once mapped, will be a bigger performance increase than a gradual one and you'll enjoy it more/it'll scare you more. []
st3ph3n Posted January 26, 2007 Author Posted January 26, 2007 Well the final decat parts have been sourced and ordered/reserved. It will mean I have a spare decat pipe going which I shall have for sale after the fitting. If you want it get your name down now. £50 and its yours. I'm think going to stick with the standard airbox with an uprated filter for the moment. I'm well aware of the benefits and good noise that the CAI would bring, but having done my own research I'm quite comfortable that the standard induction system will cope adequately with what I'm aiming for. £200 is better spent elsewhere at the moment. Should I wish to progress the car further then I would probably go for one, but that wont be for at least another 6 months to a year. A fuel pump will be sourced too, and I'll check with Andy when I go to arrange a mapping time about the pressure and injectors, but based on knowledge of other people's cars I believe that I wont be pushing the envelope with the existing parts. The plan has always been for a full decat and a map. The car made 248bhp and 232lb/ft with 2 cats still in place, an unresonated centre and a backbox, so I know that the ECU is decent. BUT! I believe that the map is the right way to go at this point in the cars development as it has reached the point in which I have all the parts I want to make the power I want.
~ ~ Cal ~~ Posted January 26, 2007 Posted January 26, 2007 You are at the stage I was at a wee while back.................my advice is therefore :- get the TD04 ported & the up-pipe openingor hang off and get a VF35 or TD04 hybrid ( will save you an extra mapping session) becuase you'll soon find out that the TD04 runs oot o' puff at the top end. This will become more noticeable as it will come on boost harder & faster after the decat / remapdeffo get all decatted parts wrapped in the engine bayremember that the lamda sensor ( if up-pipe is decatted) will be subject to WAY more heat and gas flow so bear this in mind as it could eat your turbo one day !go for STi pinks but see comment on plug 'n play below ( I don't think I will go for these tbh)with your backbox your car will be VERY loud. Might wanna bear that in mind !if tracking at KH I would get the upper switchable map put to Vpower & OB purely because it's safer for your car and helps with ignition advance. Might get a few more ponies but it IS safer for your enginedo you want Andy to map your car to be a nice all round package e.g is B-road blasts or tracking or 1/4 mile'ing more your forte ? Torque is king regardlessSTi8 TMIC would be a good idea IF you are ultimately aiming beyond 300 bhp in the long run. For 280 bhp or so it's okay I believeDEFFO go for the Walbro as the car will function better with it.I am not best placed to comment on the FPR though but it sounds wisebuy an STi killer sticker from CalWindUps.Com as you'll need it at KH [] What you have to ask yourself is how far down the "plug n' play" route you want to go ? As you know it is an addictive game ! Good luck Cal
ANDYJDMSTI Posted January 26, 2007 Posted January 26, 2007 Stephen, if you are looking for STI injectors i have a set out my car, covered about 10k!! [] Standard airbox will be fine for the level you are going to, mine handled 345bhp fine. When mapping, as has been said, get it mapped with v-power alone and no booster, you have heard of the effects certain people have had in the past with mapping with booster in it.............bad det when no booster was available and they wanted to "push on". Unless of course you have a never ending supply of the stuff!!!
st3ph3n Posted January 26, 2007 Author Posted January 26, 2007 To make things clear - I will not be changing any turbos or upgrading the intercooler at this time. Nor will I even be considering them until the end of the year. I don't mind paying for a second map should I progress the car further down the line. The car will be run on v-iagra and booster at knockhill/crail only for added protection (not performance) but it will be mapped as an every day enjoyable road car that feeds on v-power alone. If any dual mapping is done it will be one for economy, not for special fuel for trackdays. I know everyone has great intentions, but I'm not interested in bigger turbos, bigger intercoolers, etc. at the moment unless it will be unsafe to run the car with the full decat and not upgrade these parts. Which is why I believe a set of sti pinks at this time are likely to be a waste as it is my belief that the standard injectors will handle ~280. I'm not in this to be a dyno queen with huge numbers. I'm not chasing numbers at all. Please don't quote me on that though. Should I wish to start Phase 2 of a project then I have plenty of good advice.
fai17 Posted January 26, 2007 Posted January 26, 2007 At least you have set your mind on what to do next..so just keep to it and it will be brill. Keep up the good work.[Y] There is always time for phase 2.[]
higgy Posted January 26, 2007 Posted January 26, 2007 Steven I ran my car with a full decat for 9 months (and you know how i drive) and i had no problems at all . You make up Your minde and wat You want to do as You have to live with it at the end of the day. All the best Higgy
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