Swiss_Tony Posted July 5, 2003 Share Posted July 5, 2003 Being serius though.......... The important thing is how well the carbs/injection is set-up. James Su77on Se7ens Link to comment Share on other sites More sharing options...
Peter T Posted July 5, 2003 Share Posted July 5, 2003 James, you allready know the answer!!!! It will not be long before you change *idea* C7 PWT Pure Steel XE. Founder Member of The Twisted Prop Club. Link to comment Share on other sites More sharing options...
Chelspeed Posted July 5, 2003 Share Posted July 5, 2003 Sadly nowadays one thing wrong with carbs is that people who can set them up, even at rolling roads, are few and far between. They're all experts on fuel injection but either never learnt or have forgotten how to set up a pair of webers. Dave - think you got a bit lost on your sequential / wasted spark argument, you say only run sequential cos wasted spark was crap. Sequential is of course fuel, as distinct from batched or grouped injection and wasted spark refers to ignition, as distinct from the covnetional dizzy switched type. No reason why you can't run sequential with normal ignition or wasted spark any more than why you can't run grouped injection with wasted spark or normal. I run grouped injection and wasted spark and it's good for me. Link to comment Share on other sites More sharing options...
Swiss_Tony Posted July 5, 2003 Share Posted July 5, 2003 Peter Why might that be then 😳 James Su77on Se7ens Link to comment Share on other sites More sharing options...
Swiss_Tony Posted July 5, 2003 Share Posted July 5, 2003 Arnie Would you happen to know of any dogs who make carbon fibre carbs 😬 James Su77on Se7ens Link to comment Share on other sites More sharing options...
Swiss_Tony Posted July 5, 2003 Share Posted July 5, 2003 I must admit that I have considered fitting fuel injection to my 7 but I cant honestly envisage much benefit considering the £2000 plus required to do it. My 7 is mostly used on the road with an occasional adventure on a track. Chelspeed Totally agree with you on the setting up of carbs. The amount of people who can do this properly are becoming less and less. James Su77on Se7ens Link to comment Share on other sites More sharing options...
edmandsd Posted July 5, 2003 Share Posted July 5, 2003 I couldn't agree more re the comments about those who know what they're doing with carbs having been fortunate enough to have had the services of the great Roland Hayes for many years. One thing I would accept though, is that efi is more beneficial to 16v than 8v engines. Graham - My current set up is also wasted spark albeit with sequential injection - it was the batched versus sequential point I was trying to stress where midrange torque is improved with the latter. Obviously at high rpm where the injectors are opening/closing very rapidly the benefits are substantially reduced. That said if I could utilise 4 separate coils re ignition and sequential injection re fuelling I would, as i'm sure this would further benefit performance. Having re-read what I posted I can appreciate the misinterpretation ! Marius - I was referring predominantly to a standard engine where the cost v benefit argument re efi doesn't stack up in my mind, unless of course you're planning to upgrade other areas of the engine at some future date ref Graham's earlier point re the sbd kit. That said I'll happily put money on James' 2.0lt carb vx Caterham out performing Arnie's 2.2 lt efi version on the drag strip in terms of elapsed time and terminal speed 😬 Home of BDR700 Edited by - edmandsd on 5 Jul 2003 22:09:28 Link to comment Share on other sites More sharing options...
EFA Posted July 6, 2003 Share Posted July 6, 2003 I wouldn't let you near my books Dave..... Nice try BTW 😬 Grouped Graham *thumbup* Fat Arn Visit the K2 RUM website See the Lotus Seven Club 4 Counties Area Website here Edited by - Fat Arnie on 6 Jul 2003 07:54:01 Link to comment Share on other sites More sharing options...
edmandsd Posted July 6, 2003 Share Posted July 6, 2003 Believe me i'm no gambler....unless of course it's a safe bet I take it that you haven't got the facility for sequential injection then Arnie ? Home of BDR700 Link to comment Share on other sites More sharing options...
Swiss_Tony Posted July 6, 2003 Share Posted July 6, 2003 How about it then Arnie? My carbs are sequential by the way 😬 James Su77on Se7ens Link to comment Share on other sites More sharing options...
EFA Posted July 6, 2003 Share Posted July 6, 2003 Dave, I have 4 cyl sequential, dual crank pickup and 8 injectorand coil options. What more do I need...... Fat Arn Visit the K2 RUM website See the Lotus Seven Club 4 Counties Area Website here Link to comment Share on other sites More sharing options...
StewartG Posted July 6, 2003 Share Posted July 6, 2003 Reliability...... Sorry couldn't resist. Edited by - stewartg on 6 Jul 2003 23:17:54 Link to comment Share on other sites More sharing options...
edmandsd Posted July 6, 2003 Share Posted July 6, 2003 By sequential I presume you're referring to your Quaife g'box I hope you're patient James...... Home of BDR700 Link to comment Share on other sites More sharing options...
EFA Posted July 7, 2003 Share Posted July 7, 2003 My quaife gearbox was not sequential last tiome I drove it, it was "alternative"....... 1st or 2nd.... Still the "chocolate gears" seemed to have survived 7000 road miles with no real wear. Fat Arn Visit the K2 RUM website See the Lotus Seven Club 4 Counties Area Website here Link to comment Share on other sites More sharing options...
I reply to every thread Posted July 7, 2003 Share Posted July 7, 2003 For what it's worth I went from standard (Single Pull) injection to taper TB's & an MBE. Transformed the car overnight. Carbs might well have done something similar but I suspect that there's a lot less mucking about day to day with the TB setup. Link to comment Share on other sites More sharing options...
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