Beelzebub Posted July 18, 2005 Share Posted July 18, 2005 Hopefully during this lifetime I'll make it to Steve Greenalds rollers. I'm expecting circa 200 BHP out of a K series & am wondering if the Bosch cream coloured injectors are going to flow enough fuel. Anyone else producing this sort of power on these injectors 🤔 If so at what duty cycle & fuel pressure 🤔 Many thanks, Dave. Link to comment Share on other sites More sharing options...
Myles Posted July 18, 2005 Share Posted July 18, 2005 FWIW, I'm running EU2 creams on PSC - and that's hitting 92% duration for 180+ bhp. Fuel-pressure is as per std. EU3 (yes, 3) 1.6k-series - 3 bar??? I believe some people have used them for 200bhp engines - but given my duration and output, I guess they must have upped the pressure somewhat. So IMHO, *not* enough margin for another 20+bhp at standard pressure. Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Edited by - Myles on 18 Jul 2005 18:36:32 Link to comment Share on other sites More sharing options...
oldbutnotslow Posted July 18, 2005 Share Posted July 18, 2005 Interesting I am running the standard EU3 injectors on my 183 bhp 1.6 K. Emerald will give advice on flow rates. speak to Dave or Carl. Grant 😬 183 BHP of black and stone chip excitement. 😬 here Edited by - oldbutnotslow on 18 Jul 2005 19:00:42 Link to comment Share on other sites More sharing options...
DohNut Posted July 18, 2005 Share Posted July 18, 2005 Dave Walker tweaks the presure regualtor to up the pressure to four bar (from memory) details on his site. Nick Link to comment Share on other sites More sharing options...
Myles Posted July 18, 2005 Share Posted July 18, 2005 Grant - I'm guessing that's the explanation - either Dave (W or A) 'must' have upped the pressure - the std. 1.6 EU3s would struggle with 160 otherwise AFAIK - think oily might have posted on this topic around Jan/Feb when I was having problems getting PSC up and running. Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
tom7 Posted July 18, 2005 Share Posted July 18, 2005 I have 197bhp on cream injectors, there was no tweaking of my pressure. They are running at close to max at full throttle but DW said they would be fine and its true, 2 years later they are still fine 😬 Link to comment Share on other sites More sharing options...
stevefoster Posted July 18, 2005 Share Posted July 18, 2005 Cream = buff colour? Buff are fine for for VX power at 200 - 225 bhp on 50 PSI. Can't see why they would not work on a K of similar power. If cream =/ buff then forget the above... Hants (north) / Berkshire club here Area meeting pics here My Racing here Edited by - stevefoster on 18 Jul 2005 22:00:02 Link to comment Share on other sites More sharing options...
Mike Bees Posted July 18, 2005 Share Posted July 18, 2005 Yep, they're the same injector. OK @200bhp on my 1.6K but close to 100% (running at 3 bar). Mike Link to comment Share on other sites More sharing options...
oldbutnotslow Posted July 18, 2005 Share Posted July 18, 2005 Yep Dw upped the pressure as described. Grant 😬 183 BHP of black and stone chip excitement. 😬 here Link to comment Share on other sites More sharing options...
Jason Plato Posted July 19, 2005 Share Posted July 19, 2005 I ran 186 bhp on std cream EU2 injectors at 3bar ( std pressure) , I then ran 210 bhp at 4bar - whilst retaining the std fuel pump and all was OK . All power measured at Emerald . To modify the regulator from 3bar to 4 bar you need to squeeze it in a vice whilst measuring the pressure . Or ring Caterham and ask for a 1800 super sport EU2 4 bar fuel regulator - they do the mod for you The std pump should be OK for 4 bar and 210 bhp , I would suggest you change the fuel filter for a new one just to be sure all is well Link to comment Share on other sites More sharing options...
Myles Posted July 19, 2005 Share Posted July 19, 2005 I've got a sneaky-suspicion that my fuel-filter was past its best when PSC was first commissioned. It had done something like 18k and for some reason was overlooked. Since I changed it a month or so back, there has been a distinct petrol aroma to the exhaust at idle and the wideband lambda seems to confirm a general richness. There was also evidence of a certain amount of sooting in the exhaust when I took it off to wrap the primaries this w/e. It *might* be my imagination coupled with some wb calibration issues, but I suspect that I should have changed the filter (all of £10ish) a tad earlier... Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Beelzebub Posted July 19, 2005 Author Share Posted July 19, 2005 Thanks for all the replies 😬 Looks like the std injectors should be up to the job by increasing the pressure in the fuel rail. The fuel pressure reg I've got is an adjustable one that's a remnant of a QED kit fitted to the car in a previous life. I'll leave well alone until I get the car on SG's rollers, hopefully before the christmas cards start arriving ☹️ Point taken about the fuel filter. I've got one sitting & will replace it today. Cheers, Dave 😬 Link to comment Share on other sites More sharing options...
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