MC tweaks

JShadzi at aol.com JShadzi at aol.com
Fri Dec 5 10:35:40 EST 2003


I personally have never experienced "spark hop", I know of many of the cases in which you refer, I don't think there is conclusive evidence that "spark hop" has ever destroyed a 3B motor (I'd love to see it if there is), I'd consider it more of a theory at this point.

Javad

>Agreed,
>  THere have been quite a few documented cases of spark hop and
>bent Conn Rods on 3B's that try to push the envelope beyond what
>you just mentioned.  Lehman for one has quite a bit of
>experience here.  Speaking of which, does anyone know what ever
>happend to the
>"Dragon Wagon".   
>Still wish I had bought that car, damn nice Lehman motor in it. 
>I know it has changed hands a few times.  Just curious if the
>owner is still a list member.
>  Anyhow, its not worth playing with fire like that.  If you
>want 400+ hp is SO much safer to go the Ind Coil Route of the
>AAN motor.
>l8r
>  Todd
>
>--- Mihnea Cotet <mik at info.fundp.ac.be> wrote:
>> I too used to think it didn't have to go, remember our last
>> conversation 
>> Javad? What did you find out?
>> 
>> I for one have found out (on the 3B motor with stock motronic,
>> bigger 
>> injectors, RS2 turbo, EM and intercooler) that it can do 365
>> HP at 5600 
>> RPMs and as much as 420 lb/ft of torque at 3540 RPM running
>> 1.7 Bar 
>> (relative) peak boost and dropping to 1.1 at 7k. No ignition
>> issues so far 
>> with this car, though on another 3B I've put my hands into,
>> with the same 
>> stuff except for a K26/27 turbo, we've had some ignition
>> misfires (sounds 
>> scary) around 5.5k RPM running 1.7 Bar at those RPMs. I guess
>> the turbo was 
>> pushing a bit too much air into the cylinders and has possibly
>> blown a 
>> spark away...???
>> 
>> Mihnea, tuning happily in Belgium and around Europe (sig line
>> à la Hap 
>> Maguire) :-)
>> 
>> At 09:15 4/12/2003 -0500, Ben Swann wrote:
>> >[..bigger turbo .. cam ..dual pass..Ignition timing..simple
>> things you 
>> >could do w/o any
>> >major fabrication..Header..right turbo   <- edited
>> >:
>> >  "in conjunction, and IME, once you want to get much past
>> 350 crank the
>> >ignition dist. has got to go. "  Javad]
>> >
>> >Why does the (stock?) distributor have to go, please explain?
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>
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