2L engine RPM rev limit ?

[AlfaNeely@domain.elided]

       I know the Alfa spider with the stock Bosch L Jetronic injection and 
stock VVT camshafts will turn 7500 RPM.  The power runs out at 6200, so there 
is rarely any reason to not shift there.  But in some cases in an autocross 
or a race it may be as quick or quicker to over rev the engine than it is to 
shift up and back down again for the next corner.
       A word of caution.  Both my 82 street racer spider and my 84 SCCA race 
car spider are fully balanced and blue printed with a lot of attention paid 
to the connecting rods.  Both are drilled for full oil to all five main 
bearings.  Both have 9.5 to 10 to 1 compression ratios and both have very 
free flowing exhausts.  However, as required by the rule book, both have 
stock injection and stock camshafts.
       OK, I know there is not rule book for a street racer, but it was built 
mostly according to the SCCA Street Prepared Classification Solo II rule book.
       Except for the compression and exhaust, none of the above really 
increases the RPM potential, but all allow the engines to live at excessive 
revs.  On a stone stock 86 spider, your results will probably vary.  And no, 
there is no rev limiter on any of the Alfa four cylinder engines that were 
imported to the USA.

Ciao,
Russ Neely
Oklahoma City



In a message dated 09/26/2002 5:31:07 PM Central Daylight Time, 
owner-alfa-digest@domain.elided writes:


> Date: Thu, 26 Sep 2002 11:45:35 -0400
> From: "Damien Gaboury" <dgaboury@domain.elided>
> Subject: 2L engine RPM rev limit ?
> 
> I have followed with great interest the ITU discussions and  I have two
> questions that may seem trivial. With a 2 L L-jet Bosch injected Alfa 
> engine,
> what is the real RPM limit to not exceed under hard acceration before 
> shifting
> up. I know that most HP are produced at about 5500 rpm but can the engine 
> rev
> to 6000 RPM and even more without problem ? Also, is there a RPM limiter on
> the spider 86.  <snip>
> 
> Regards
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