ed-209 Posted March 5, 2006 Posted March 5, 2006 Time to let the experts give me some advise, this is what I'm thinking to do in stages. In what order should I do it, remember I have limited funds.. remove 2 of the 3 cats. APS induction kit or KN Kit. Sti intercooler and spray. Uprated fuel pump. Samco Hoses to smooth airflow. Do you think I would also need a remap. Please add any other mods but nothing to extreame. Ed. PS. Brakes have already been done, groved drilled discs front only, braided hoses, dot 5 fluid, mintex pads ect. Added to list so far. Boost controller Knocklink
colin_ross Posted March 5, 2006 Posted March 5, 2006 Thats a good start Ed but what is your final goal? Are you looking for a fast road car or a big power drag style motor? It has been said many times before but if you are going to improve the breathing on the car you should realy fit a knocklink too in order to make sure you don't bring on any det. A remap would ensure this didn't happen though.
ed-209 Posted March 5, 2006 Author Posted March 5, 2006 I'm looking to only have a quick road car, with as wide a torque band as possible meaning loads of grunt for the b roads. At the moment the torque starts coming in at 3000 and hold till 6000 with a small dip at 4-5000 so don't really want to kill that band to much. Ed.
colin_ross Posted March 5, 2006 Posted March 5, 2006 A boost controler is a cheap and effective way of bringing the boost is quicker and stronger for that wider spread you're after. Full decat is always a good way to go too.
Gumball Posted March 5, 2006 Posted March 5, 2006 250bhp just now. Maybe this would be an idea working to a budget. Then you could achieve your targets in targets and be happy. STAGE 1- Walbro255 pump full decat Maybe-270-280bhp Cost-£1400approx Remap (ECUTEK) Boost Gauge Knocklink ------------------------------------------------ STAGE 2- STI tmic FSE Fuel Regulator Maybe 300-330bhp Cost-£1100approx Induction kit STI8 Turbo STI Injectors ------------------------------------------------- That to me seems like a nice starting plan and is priced middle of the road, so if you shopped about as im sure you will you will get it all cheaper than that. Having had a WRX of very similar age and origin to yours myself, i would consider purchasing a roger Clark uprated oil pump £149. I am getting one myself today to make sure nothing happens to my big ends (as much as i can)
john_robertson Posted March 5, 2006 Posted March 5, 2006 Time to let the experts give me some advise, this is what I'm thinking to do in stages. In what order should I do it, remember I have limited funds.. remove 2 of the 3 cats. APS induction kit or KN Kit. Sti intercooler and spray. Uprated fuel pump. Samco Hoses to smooth airflow. Do you think I would also need a remap. Please add any other mods but nothing to extreame. Ed. PS. Brakes have already been done, groved drilled discs front only, braided hoses, dot 5 fluid, mintex pads ect. Added to list so far. Boost controller Knocklink Personnally don't think there is a requirement for the induction kit unless your are planning on going above 330bhp, might be worth re-directling the cash put aside for that and getting a set of OEM headers ported and lagged, these would help maintain the torque spread and get a nice increase also. I believe Harvey does them on an exchange basis. John.
fai17 Posted March 5, 2006 Posted March 5, 2006 Get a full decat Ed....Look for me if you need help[]
ed-209 Posted March 5, 2006 Author Posted March 5, 2006 Was going to leave the one in the downpipe in, to keep the emissions down and also to protect the lamba sensor as I heard sometimes the cel light comes on with the front cat removed. any advise peter. Ed.
fai17 Posted March 6, 2006 Posted March 6, 2006 Was going to leave the one in the downpipe in, to keep the emissions down and also to protect the lamba sensor as I heard sometimes the cel light comes on with the front cat removed. any advise peter. Ed. Getting the decat down pipe gives you the biggest gain and faster turbo spool up but you will need a remap after that as the CEL will come on.
Rice Rocket Posted March 6, 2006 Posted March 6, 2006 I've ran my bugeye for over 4yrs fully decatted and never had a remapp (yet) So I wouldnt think you'd need a remapp if your running full de cats AFAIK. I could be wrong! As for the uprated oilpump, do you need to go for that, just asking as I don't want mine to go bang when the mods begin? Ricey
st3ph3n Posted March 6, 2006 Posted March 6, 2006 Peter, is the uppipe cat not the most restrictive part of a WRX system? Ed, I'm on the same lines as you, and I've been doing plenty of research on what to get over quite a few months now. So the list of performance parts I'm working on is: 1. STI Panel Filter or other performance filter 2. Samco IC Hose pieces (got a link for that at home somewhere) 3. Full Decat. Probably get an STI uppipe and then get a full turbo back system from C+C or Meercat, or maybe just buy the bits from H+S as I'm running an H+S backbox just now which I quite like. That's a story for another day though. 4. Remap Through my research and the technical advice given by some of the scientists here the numbers talked about have been just shy of 300/300 with that, which is my goal. I'd originally thought an APS CAI or another good induction kit would be necessary, but apparently not. There's a very good explanation here when I'd asked before - http://forums.sidc.co.uk/forums/589308/ShowPost.aspx Hope that helps.
chris_c201 Posted March 6, 2006 Posted March 6, 2006 Stephen, Think the down-pipe is the most restrictive in general although the up-pipe is a limiting factor on re-mapping as if the boost is too high and EGT's go up the cat melts and goes into your turbo.... I have the same plans as you, de-cat up-pipe, down-pipe, ported OE headers, already got a panel filter and that'll be me for a wee while.... then fuel pump and re-map.....
st3ph3n Posted March 6, 2006 Posted March 6, 2006 Fuelling and indeed oiling now are still on my list of factors to be considered. Will an 05 WRX running around 300/300 be maxing out the pump or injectors? Is the uprated Oil Pump needed? As I said on the CAI thread - it's a daily driver which has to be able to make the power reliably, so even if it was getting close to the limits I'd rather fit something improved to keep everything more than kosher. No point making stupid power for a month before half the engine disappears out the exhaust when it gives up. But there's also no point fitting something I don't need.
ed-209 Posted March 6, 2006 Author Posted March 6, 2006 Ricey, I believe the Cel light thing only effects bug eyes as they moved the lamba sensor, I don't want to go mad crazy with mod's. at the end of the day over 250bhp with just a panel filter and backbox is still good it's almost standard Sti without the cost, but the bug is there and starting to bite. This is what I'm looking at in order. Oil Pump - Thanks Chris Samco hoses Uprated Fuel Pump KN Typhoon Induction - for more tsssh tsssh on gearchange ------------------------------------ Decat 2 of the 3 so no mapping needed Knocklink Boost controller -------------------------------------- Remove last cat STi Intercooler and Spray Remap But during that get prodrive spring set and whiteline droplinks. Oh also had my laptop connected to the car lastnight using the OBD2 connector and some new digimoto software which shows things like MAF reading, O2 (lamba) and intake air temp all the info used to be in graphs now you can set it up as Gauges. Also allow error codes to be reset ect. If enough people would like codes read ect or just for peace of mind I could bring it to a meet and have your ecu read and reset if needed for a small donation to the RB fund raising. Ed.
chris_c201 Posted March 6, 2006 Posted March 6, 2006 Fuelling and indeed oiling now are still on my list of factors to be considered. Will an 05 WRX running around 300/300 be maxing out the pump or injectors? Is the uprated Oil Pump needed? I think for a re-map a pump is recommended (not 100% needed) again much the same for injectors.... mine are only 380's but i'm not sure about yours, maybe 440's..... I know of one WRX running 330bhp and its still on the 380 injectors with a Walbro 255 pump, think i'll go for this route altho nearer mapping time i may ask Andy.F just in case the injectors are recommended. Cheers Chris
Gumball Posted March 6, 2006 Posted March 6, 2006 ttheres cars that have been decatted and not mapped. its evident that as someone said 4yrs and its fine. its just something i wouldnt do thats all. Im sure thats fine and the car knows exactly whats going on. Oil pump is to stop the big ends going when the oils not the cleanest or something gets clogged. I change my oil using 15/50 EVERY 3000 miles without fail and will be getting an uprated pump pronto. too much to lose for the sake of 150quid.
RS Grant Posted March 6, 2006 Posted March 6, 2006 I take it that you arent too bothered about Warranty then Ed?? Or has it just run out?? [] Cheers, Grant
ed-209 Posted March 6, 2006 Author Posted March 6, 2006 It might take me a while to get all the stuff together and so far the car has did 8500 miles and not missed a beat, more that can be said for my cdti corsa it's 3 weeks on the road 1 week in the garage so far. I will weight up the pros and cons of the warranty it was a hard fight to get it so ?????? I'll see, 250 might just have to do me for the next 2 years 3 months and 25 days not that I'm counting.
RS Grant Posted March 6, 2006 Posted March 6, 2006 250bhp might satisfy you for the 3 months.. at a push. [][] Cheers, Grant
fai17 Posted March 6, 2006 Posted March 6, 2006 Stephen, Think the down-pipe is the most restrictive in general although the up-pipe is a limiting factor on re-mapping as if the boost is too high and EGT's go up the cat melts and goes into your turbo.... I have the same plans as you, de-cat up-pipe, down-pipe, ported OE headers, already got a panel filter and that'll be me for a wee while.... then fuel pump and re-map..... Well said Chris...Welldone son[Y]
chris_c201 Posted March 6, 2006 Posted March 6, 2006 Amazing what you can pick up from the ol internet wi no hands on experience eh!!
~ ~ Cal ~~ Posted March 6, 2006 Posted March 6, 2006 Do not underestimate the importance of sorting your brakes out if you are going for big power / faster b-road mobile. Short ot time but see some of my other threads as I am on a similiar mission CGS
ed-209 Posted March 6, 2006 Author Posted March 6, 2006 As anyone who has talked to me will know, I believe in being able to stop before I can go. Hence "Brakes have already been done, groved drilled discs front only, braided hoses, dot 5 fluid, mintex pads ect." but a good call anyway. Ed
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now