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Conference terri::cars_uk

Title:Cars in the UK
Notice:Please read new conference charter 1.70
Moderator:COMICS::SHELLEYELD
Created:Sun Mar 06 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2584
Total number of notes:63384

1532.0. "VTEC CRX Rev limiter" by SEDSWS::PHIPPEN (what happens if I press thi..) Wed Aug 28 1991 20:03

    
    Does anybody out there know anything about the Rev limiter on the CRX
    VTEC, Basically what I want to know is can it be upped or removed,
    the engine (due to variable timing) is capable of reving to 9500 revs,
    without damaging the engine, which the CRX challange and the 24
    indurance cars do. These cars are standard apart from uprated suspension
    and brakes and a blue-printed engine.
    
    Also, How do you get rid of a stinky-horrible catyliser with out voiding
    your warranty.
    
    Thank in advance 
    
    Jason
    
T.RTitleUserPersonal
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1532.1there's a reason for itOASS::BURDEN_DHe's no fun, he fell right overThu Aug 29 1991 00:198
The reason they can rev to 9500 rpm without damage is because they have
a blueprinted engine.  This sets the tolerances a little looser and
balances all the moving parts.  This makes it possible to rev higher with
less friction (less heat), and fewer vibrations.  Granted, your stock
engine will probably survive over the indicated redline, but don't plan
on making it reach 9500rpm at every shift, for very long.....

Dave
1532.2Frying tonightDOOZER::JENKINSseriously 'ken shabbyThu Aug 29 1991 05:417
    
    I would imagine that the rev limiter cut-out is controlled by the
    engine management system. If so a new chip could change a few
    characteristics. Why not try a 'chip shop' or a tuning specialist
    who prepares CRXs for racing?
    
    Richard.
1532.3Lock it upWARHED::GILLILANDThu Aug 29 1991 10:4915
  > engine will probably survive over the indicated redline, but don't plan
  > on making it reach 9500rpm at every shift, for very long.....
    
    In fact, don't plan on keeping it for too long:
    
    Thursday 8th August - fellow engineer receives new CRX VTEC. 
    Monday 12th August - car nicked from outside his house
    Wednesday 15th August - car found, wrecked.
    
    The recovery wagon turns up to tow it away, and the owner offers him
    the keys to unlock the steering. "Don't need them for this mate" says the
    wagon driver, and proceeds to unlock the ignition by shoving a
    screwdriver in the keyhole!
    
    Phil Gill.
1532.4Try these people...ARRODS::WILLIAMSONThu Aug 29 1991 18:3910
    For CRX stuff, try Nick Tye Autos.  I hear they're pretty good.  They
    advertise in Performance Car, if you want the number.  Also, I think
    you'll find that Brodie Brittan Racing might be able to help.  I had
    one of their StarChips put into my BMW M3 a couple of weeks ago, and it
    upped the rev cutout from 7,200 to 7,800, as well as made her pull even
    better after 4,000 - all with no loss of tractability low-down.  All in
    all, I'm pretty impressed.
    
    
    Dave.
1532.5?DCOPST::BRIANH::NAYLORTigers fly, Spiders roar!Fri Aug 30 1991 17:373
If removing the catalytic convertor would void the warranty, then what is the
effect of removing/altering the rev limiter?  Surely, the same?  If you're not
bothered about one, then why should the other be an issue to you?
1532.6Friendly warningCHEFS::PALMERMon Sep 02 1991 17:529
    Jason,
    
    A friendly word of warning.....your's is a company car which you
    shouldn't tamper/alter without Car Fleet's and the Leasing Co's
    permission.
    
    Also, Insurance won't be too happy ! .... guess where I work ?