david nelson Posted August 8, 2008 Share Posted August 8, 2008 What injectors would i need for a K sries with 210BHP (ish). I gess the standard one are not up to the job? thanks David Link to comment Share on other sites More sharing options...
rj Posted August 8, 2008 Share Posted August 8, 2008 Kind of "what do I need for breakfast?" The R500 injectors CC sell will do. As will IE Bosch 0 280 155 968 - Which is a green injector, ISTR used by Volvo. Link to comment Share on other sites More sharing options...
Support Team Shaun_E Posted August 8, 2008 Support Team Share Posted August 8, 2008 David - my (226bhp) car uses the cream coloured ones which I believe are standard (at least on the 1.6 SuperSport). They are however running at close to 100% duty cycle at the top end. The green Volvo ones have been recommended to me by Track and Road - they are about £40 each and apparently are a better type of injector than the original items. Yellow SL #32 - member of Drowned Rat Racing Link to comment Share on other sites More sharing options...
rj Posted August 8, 2008 Share Posted August 8, 2008 The cream injectors are the old style EU2 type and have a poorer spray pattern. Running 100% is not good as you need an enrichment when you change gear etc. I'm currently running the OEM VVC injectors at 195BHP and they're not big enough. I'm at 90% ish. This causes the engine to miss a beat or two when I change gear at max rpm and full welly. /r Link to comment Share on other sites More sharing options...
oilyhands Posted August 8, 2008 Share Posted August 8, 2008 You might want to consider a small increase in fuel pressure to say 3.5 or 4 bar, this will give a useful boost to injector capacity, you will need to rescale the map though. Oily Link to comment Share on other sites More sharing options...
rj Posted August 8, 2008 Share Posted August 8, 2008 Oily, I would imagine that this could form a problem if you have the std fuel pump as it's already at it's limit at 210BHP and increasing the pressure doesn't ecactly reduce the stress. (I have a 3.5 bar regulator, just been too lazy to fit it as I'll hopefully soon swap engine to something with a bit more power - and bigger injectors) Link to comment Share on other sites More sharing options...
oilyhands Posted August 8, 2008 Share Posted August 8, 2008 The same is true for fitting larger injectors, I would assume that the fuel delivery would be adressed in either eventuality, it's just a lot cheaper to go to 4 bar than to swap injectors, in fact done properly it's free. Oily Link to comment Share on other sites More sharing options...
Jason Plato Posted August 8, 2008 Share Posted August 8, 2008 as oily says 210bhp on cream injectors with a squeeze on the pressure reg does the trick I think I was using 4bar on my K series like this here is C7 TOP Taffia rear gunner Edited by - Dave Jackson on 8 Aug 2008 18:46:34 Link to comment Share on other sites More sharing options...
millsn Posted August 8, 2008 Share Posted August 8, 2008 Does anyone have any 'green volvo ones' going spare? and how far do they go before they run out, I need to future proof for 240 brake Link to comment Share on other sites More sharing options...
rj Posted August 8, 2008 Share Posted August 8, 2008 Oily and Dave, Whilst I appreciate it's a cheap way of fixing the problem I still don't like the squeeze technique as it makes it harder to reproduce the regulator in the event of a failure especially if you haven't measured the actual pressure. Oily, I would expect it to be harder for the pump to deliver say 100 lbs/h @ 4 bar than at 3 bar hence my concern. Link to comment Share on other sites More sharing options...
rj Posted August 8, 2008 Share Posted August 8, 2008 millsn they'll be good for some 260BHP @ 3 bar - or 350 @ 4 Link to comment Share on other sites More sharing options...
david nelson Posted August 8, 2008 Author Share Posted August 8, 2008 more quetions If i use the standard injectors i can increase the fuel pressure by giving the regulator a squeeze.. Cost none. How often do FPR fail? or i can get new injectors and leave the FPR alone. David Link to comment Share on other sites More sharing options...
rj Posted August 9, 2008 Share Posted August 9, 2008 How often do FPR fail? Not often, but it happens. Yes, swapping injectors is straight forward. Link to comment Share on other sites More sharing options...
Rob Walker Posted August 9, 2008 Share Posted August 9, 2008 I am interested in the "volvo " injectors. Can someone post the injector code number and some details, also who can supply them please ? Thanks Rob Link to comment Share on other sites More sharing options...
neil.cavanagh Posted August 9, 2008 Share Posted August 9, 2008 RJ, Re: " This causes the engine to miss a beat or two when I change gear at max rpm and full welly." I think I might be having this issue. Though not exactly. When standing on the throttle to exit a bend on track I'm getting a little bit of stutter (1 sec or so?) before the car takes off. Seems to happen more when fully hot. My (cream) injectors are running close to 100% at the top end. (but then with the 230bhp DJ thinks I have I guess this is to be expected!!). So maybe I shoudl consider a FPR squeeze and/or new fuel pump. As I'm also gettign fuel starvation issues on long right handers maybe a new tank/pump will kill two birds with one stone... Link to comment Share on other sites More sharing options...
Jason Plato Posted August 9, 2008 Share Posted August 9, 2008 no you have less than 230. Probably more like 217 bhp when you squeeze the reg to up the pressure - you attach a pressure guage on the outlet to determine the level of adjustment. I adjusted mine to 3.9 bar. So repeatability is not a problem should it fail here is C7 TOP Taffia rear gunner Link to comment Share on other sites More sharing options...
rj Posted August 9, 2008 Share Posted August 9, 2008 Rob, Any decent Bosch spare parts dealer ought to be able to source them. As stated the code is 0 280 155 968. If everything else fails can I source them here in Denmark and send them over. /regin There is never enough time to do it properly, but there is always time to do it again Link to comment Share on other sites More sharing options...
rj Posted August 9, 2008 Share Posted August 9, 2008 Niel, It depends on which ECU you're using how it acts when the duration is >100%. The MBE cuts out, which I had been warned about. It's not advised to run at higher duration than 85%. It confuses me that it's worse when the engine is hot. It ought to need less fuel, hence the problem should be lesser. There is never enough time to do it properly, but there is always time to do it again Link to comment Share on other sites More sharing options...
Rob Walker Posted August 9, 2008 Share Posted August 9, 2008 Hi Regin, Do you have the injector spec, ie flow rate, impedance etc Thanks Rob Link to comment Share on other sites More sharing options...
jingars Posted August 9, 2008 Share Posted August 9, 2008 I think that this Bosch document has the information you seek. Link to comment Share on other sites More sharing options...
rj Posted August 10, 2008 Share Posted August 10, 2008 Beaten by jingars 😬 - Rob I've sent you an email... /regin Link to comment Share on other sites More sharing options...
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