Jake Posted August 2, 2003 Share Posted August 2, 2003 Would I be stupid to not fit a boost controller when fitting a front decat pipe? My second cat is already out and I do have a GReddy boost gauge installed. The current exhaust is a big bore thing but with 2 silencers, I don't know what make it is though, it came with the car when imported. I was thinking of replacing the existing cat with a CW front pipe and seeing how it went with regards to over-boosting, maybe it won't. Thoughts? Anyone know how much a front decat pipe is from CW? I'd better not phone him at this time of day on a weekend! Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted August 2, 2003 Share Posted August 2, 2003 i aint got one and have blitz nur spec n both cw de cats goes ok speed wise, a tad too much boost Quote Link to comment Share on other sites More sharing options...
Barry Posted August 4, 2003 Share Posted August 4, 2003 Same here. No cats at all, full Blitz pipe, stage 3 hybrids and my right foot controlls the boost! I cant remember the last time I actually used full throttle??? Or should that read... I cant remember the last time 'I needed to' use full throttle! I run it at about 1 bar, although it will go alot higher if I put my foot right down. Quote Link to comment Share on other sites More sharing options...
JohnK Posted August 4, 2003 Share Posted August 4, 2003 A boost controller can only raise boost not reduce it. If you find you are over boosting you will need a restrictor ring. Quote Link to comment Share on other sites More sharing options...
as5606 Posted August 4, 2003 Share Posted August 4, 2003 My experience is that without a restrictor ring, you will probable be Ok in this weather (and anything over 10 degrees C). When it starts getting colder, especially freezing you will probably see at least a 0.2bar increase and a trip to CW may be in order to save your spinners popping !!! Quote Link to comment Share on other sites More sharing options...
Justin Posted August 4, 2003 Share Posted August 4, 2003 Originally posted by dunk657 Would I be stupid to not fit a boost controller when fitting a front decat pipe? My second cat is already out and I do have a GReddy boost gauge installed. The current exhaust is a big bore thing but with 2 silencers, I don't know what make it is though, it came with the car when imported. I was thinking of replacing the existing cat with a CW front pipe and seeing how it went with regards to over-boosting, maybe it won't. Thoughts? Anyone know how much a front decat pipe is from CW? I'd better not phone him at this time of day on a weekend! Mate after front decat you boost to over 18 psi then all you need is a £10 restrictor plate from Chris Wilson. I have no cats and a Blitz and went up to 21.5 psi. The plate took me down to a safer 17.5/18.0 psi. Don't blow your money on a boost controller. Justin Quote Link to comment Share on other sites More sharing options...
Jake Posted August 4, 2003 Author Share Posted August 4, 2003 I've never actually checked what it's boosting to before. I took it out tonight and at 6000rpm in 3rd (auto jspec tt) with foot to the floor it's hitting 0.9 bar according to the GReddy boost guage. It's bloody hot outside too, must be the hottest day of the year, so I'm guessing that it prolly boosts a bit higher on cold days. I'll ring CW tomorrow and get the front decat pipe and restrictor ring ordered up. Thanks for the advice guys! Quote Link to comment Share on other sites More sharing options...
Thorin Posted August 4, 2003 Share Posted August 4, 2003 You really need to fit the decat first and see what (if it does) overboost to. I believe Chris cuts the restrictor hole to a specific size to keep the boost down to 1.2 depending on what it was overboosting to. Quote Link to comment Share on other sites More sharing options...
Jake Posted August 4, 2003 Author Share Posted August 4, 2003 Originally posted by Thorin You really need to fit the decat first and see what (if it does) overboost to. I believe Chris cuts the restrictor hole to a specific size to keep the boost down to 1.2 depending on what it was overboosting to. Oh I didn't realise that. Makes sense to "suck it and see" in that case. Cheers Thorin dude! Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted August 4, 2003 Share Posted August 4, 2003 got some steel plate from work to have a go at making a couple to try. i want to get boost down to about 1.6 bar think 1.9 bar is a bit higg for me as it dont feel any faster than when i always run at 1.6 bar for everyday use. will have to look into running some sort of octane booster or maybe optimax but its so dear 79p , asda sell best stuff at 74p Quote Link to comment Share on other sites More sharing options...
Jake Posted August 4, 2003 Author Share Posted August 4, 2003 Originally posted by MONKEYmark think 1.9 bar is a bit higg for me as it dont feel any faster than when i always run at 1.6 bar for everyday use. How do you change from 1.6 to 1.9 and back without a boost controller then ? will have to look into running some sort of octane booster or maybe optimax but its so dear 79p , asda sell best stuff at 74p yeah that extra fiver per tankful must nearly break you Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted August 4, 2003 Share Posted August 4, 2003 you just have to watch it and keep an eye on boost gauge. i take it steady at 1.6 bar and use 1.9 bar when you need it finishing off a cossie or punto gt turbo i will do some research and development between 2pm and 3pm tommorow. as my grandad said when i was little, look grandson keep an eye on your boost gauge he also said look after the pennies and the pounds will look after themselves. you really need to get some medical advice about what pressure is safe to run. dont take any advice off someone you dont know. get to know the person through chatting on MSN version 6 it has some good features like web cam and microphone support. you also can have little pictures at the side of your name. be carefull out there the world is full of bad people. Quote Link to comment Share on other sites More sharing options...
Jake Posted August 4, 2003 Author Share Posted August 4, 2003 *Mummy, MonkeyMark is scaring me again" Quote Link to comment Share on other sites More sharing options...
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