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  1. S

    Clio 16v Turbo Project.... Maybe??

    ideally you dont want to drop the compression ratio...it ruins drivability when off boost/crusing. theres to ways to do this: 1)the proper way 2)the non-proper way i.e. little attention to detail bodged way: drop Cr, by either a thicker head gasket, or a spacer and gaskets. this is poor...
  2. S

    Methanol/Ethanol alternative fuels

    hydrogen will be the future race fuel...i'll make sure of it! its a very suitable fuel. cars have been made to run on water where the electrolysis seperation of water is carried out on board....ive seen videos....BUT for performnace use, i doubt the rate of production would match the rate of...
  3. S

    Motorbike can

    generally the bore is actually larger than a NA car engine. no power loss issues
  4. S

    JC5 129 cup gear box, techy question

    whatever flicks ur switch mate.....im not saying anything
  5. S

    JC5 129 cup gear box, techy question

    lol heres a tip...take it to a garage!
  6. S

    question for all you mad engine people!!!

    u'll need ecu and ignition master switch with key/transponder (its immobilised unless u have this), and he better be good at wiring. or put it on bodies with standalone ecu
  7. S

    160bhp...

    full race spec. was for "hot hatch" race series in short: 1.4 8v massive valves, fully ported VTS head 1.2 crank 1.4 block bored to take disp back to 1.4 (for regs, since we used short throw crank) JE pistons, CR= 12.7:1 crazy cam (cant mind on exact spec, but it was something like 13mm...
  8. S

    160bhp...

    Ive managed 167bhp from a 1.4 8v Citroen lump! NA BTW
  9. S

    odd piston question

    Thats not exaxtly true mate. as ben says, static Cr is meaningless pretty much. with your examples...if u had say 10:1 static Cr and a low duration cam profile, it could work out that your dynamic Cr is greater than a set-up with a static Cr of 11.5:1 and a higher duration cam profile. Thsi...
  10. S

    porting inlet mani

    its stupid advice to use a dremmel..you really want to ignore it... u need decent size bits, not tiny things that will rut the hell out of it...
  11. S

    Tesco 99 update & Tech info

    Ben, its says 99 RON on the pump...its obviously better
  12. S

    Electric Supercharger

    To do that you would need a pre-programmed relationship between the value the lambda sensor was reading and the desired AFR (usually 12.8:1 for max power). for example, say you calibrated the correction (via your interception box of tricks) on the lambda sensor to give 10% richness...this may...
  13. S

    Understeer!

    your t.p's ok? plenty of tread on the tyres i take it?
  14. S

    Understeer!

    or maybe the roads are greasy due to change in weather conditions
  15. S

    Stand along ECU's for diesels.

    the VAG lump is "pumph deuse"...higher injection pressure, different mapping stratrgies....i doubt the renault ecu will support the software...
  16. S

    Stand along ECU's for diesels.

    are the two engines of the same injection type? eg fuel stratified etc if not you will have problems. diesel engine control is far more complex than petrol.
  17. S

    how much to fit a 2.0 bottom end?

    whats a good price to you mate....?
  18. S

    f4r torque ceiling

    i have a hard job keeping up thats why! joke! im actually tooooo busy reading all my books! in all honesty i wish i had time to read books....everythings flat out at the moment....
  19. S

    f4r torque ceiling

    cummon Ben! BHP=RATE of work done. work done*distance=torque. power =torque*rpm or (2*pi*N*T)/60 your slacking son!
  20. S

    How much power loss?

    yup as above, and there isnt a percentage loss on torque....only power
  21. S

    Worn LHS track rod end

    probably another hours labour plus gearbox oil
  22. S

    Renault tunable ECU

    yes you get a selection of maps....none of which are anybetter than an off-the-shelf-chip. the advantage of this is that you can tweak the maps to be ideal for your engine. but, likke i say you need to know wot your doing. mapping isnt difficult if you know wot your doing, but this system...
  23. S

    Renault tunable ECU

    It has data-loggong capabilities....so you run the engine over the load/speed sites you want to query/adjust then play back the run on the DL function, then adjust accordingly. you need a wideband lambda sensor. I had one for my previous set-up. its very comprehensive although a little...
  24. S

    AFR (Air fuel mixture) on mod.

    btw my reply about just doing it then going for a remap wasnt sarcastic......
  25. S

    AFR (Air fuel mixture) on mod.

    i understand fully mate, but i think if someone had such data they would have stepped forward by now.
  26. S

    AFR (Air fuel mixture) on mod.

    go for it! then get a remap aswell.....sorted!
  27. S

    Godspeed four pot brembos?

    overkill? totally depends on the set-up mine are simply to increase the heat dissipation of the caliper. braking effort isnt always the reason....
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