Charles and the rest of the List, my reading of the DJ stg 7
instructions(that I have) suggestions and recommendations are for
"performance header systems with 2 1/2" baffle" hindle and kerker are
specifically mentioned. Now it could be that other arrangements may work
with enough pinnash and no doubt have and are. i wonder however if perhaps
the TB cans are set-up to emulate or actually duplicate the system
conditions of the stock cross-over collector, or could it be that they have
the same tuning problems as many of the other slip-on offerings? certainly
hope these things aren't the "new" F-I's. although there seem to be quite
afew nagging simularities. I beleive it was Pat A. that desided that the
indiv. filters proved to humidity sensitive for him and thus championed the
Stg.1-7 hybrid. interestingly, Mario claims to have install a good number of
Stg. 7's by the book ( up here in the near sea-level, great-lakes area) all
with excellent results. is geography and climate an actual "big player" in
all this? admittedly more questions here than answers but maybe they will
help gar loose the solution....steve#1131
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: V-MAX TECH LIST <[EMAIL PROTECTED]>
Sent: Friday, March 24, 2000 7:20 PM
Subject: Re: Two Bros Racing dual oval slipons and Stage 7 Kit ( To all who
replied or gave their opinion )
> TC, Paul and rest of the crew,
> thanks to you and all the rest who have contributed to making life to
other Max owners a little bit more comfortable and understanding. My boss
and friend owns a Honda CBR 600 and he is very surprised on how tight a
relationship can be between fellow Maxers, I think he is a bit jealous, but
I don't tell him so.
>
> I'm not a crab and don't like to crawl backwards unless there is no other
way and I'm determined to make this thing work. I have been tempted to
retrieve and go back to what I had, but the TBR are such a nice set of
canisters and make the bike look so much better, that I can't even image me
doing so. Dynojet clearly specifies that they require fully open mufflers or
cans to get the best from their kit and I followed their philosophy to the
bitter end. Now I find that the Stage 7 Kit could perform in a more than
desirable way with the standard box and a less than acceptable exhaust
system.
>
> I never managed to get so much power out of my Max in such irregular
conditions, so to me this change to the Two Bros Racing canisters was a
clear step forward and that would even increase the performance on my bike
by a long shot. Dynojet suggest using as they say, quote:"1. To obtain the
most from this jet kit you must use a medium or competition baffle or have
drilled out the stock baffle". I think that in this case TBR cans are more
than enough.
>
> To Paul's mail I have to add that I never changed two items at the same
time, since in my case I started off by replacing the cans from Laser to the
Two Bros. Racing and then as I tried the bike on the road, with the standard
air box and settings I had with the Lasers, I realised that the new
canisters needed more breathing and new jetting for the bike was performing
in a less than acceptable manner. The four K&N filters have been quite
drastic in what engine behaviour means, making the CV carbs function in an
irregular manner, upsetting all the conditions previously achieved, but I
firmly believe in Dynojet's approach to the Max carburetion and I'm aiming
to get it as close as possible to their demands.
>
> As any medium knowledged mechanic would comprehend, if you understand how
combustion works, Dynojet makes it hard to believe that by removing the
V-boost and leaving straight through pipes, you can achieve good mid range
power, so important to the V-max, since that is where the low end torque
depends on, but still I have been able to feel and agree that one way or
the other Dynojet have accomplished their goal, since if anything my
previous set-up with the Lasers was giving a lot more low end torque than
the standard system.
>
> Now with the TBR racing canisters I find it much more difficult to get the
mid range torque. Following Dynojet's new recommendations (have been in
constant contact with them since all this started), I have moved the needle
position to notch 5 from top and the result has been for the better, but
still my bike was able to produce far more exhilarating acceleration marks
when using the S7K and standard airbox, with the Laser slip-ons. Today the
rain was pouring down so I just rode the bike below the top revs, but it
behaved much better than yesterday when I had the needle position to max
fuel flow on the sixth notch position.
>
> I have also been asked if I had changed the pilot air jet under the slide
diaphragm to 190, but I have not. maybe I will, but not right now.
>
> I know that open exhaust pipes will deliver better high end power by
sacrificing mid range power, but I hope I can come to terms with the system.
My main goal is to have a Max behaving like a Max, with tons of low end
torque plus gaining some horse power at the top end to be able to compare
myself to the actual big sized engine bikes around. If this mod I just made
gives me top-end HP and looses mid range, then I don't want it, my bike must
outperform most of the actual bikes between 0-75 MPH and then let them
continue for that is their strong point and maxes do not or should not get
involved in high speed competition or road racing due to our obvious lack of
fairing and speed handling problems.
> ----- Original Message -----
> From: TC <[EMAIL PROTECTED]>
> To: V-MAX TECH LIST <[EMAIL PROTECTED]>
> Sent: Friday, March 24, 2000 1:27 AM
> Subject: Re: Two Bros Racing dual oval slipons and Stage 7 Kit
continuation )
>
>
> > Charles,
> > IMHO ... and if you have already done this ... please hit the delete
> > button. Otherwise ... If I were you .... I would put the individual
> > filters back in the drawer for a while and return the bike back to the
> > needle settings and airbox configuration you had prior to taking the
> > Lazers off and putting the Two Bros cans on, (I assume you were
> > running OK at that time). As I suspect you might be having the same
> > tuning problems with the individual filters even if you were still
> > running the Lazers. If this proves to be the case then at least it
> > would eliminate the Two Bros installation from consideration as a
> > contributing factor to the poor state that currently exists ..... I
> > think it is important to make this determination in order to feel
> > confident that you are addressing the "real" problem.
> > regards,
> > campbell
> >
> > ----- Original Message -----
> > From: Patrick Reynolds <[EMAIL PROTECTED]>
> > Subject: Re: Two Bros Racing dual oval slipons and Stage 7 Kit
> > continuation )
> >
> >
> > > Charles, I called TBR here is the U.S. for you. He said to use a
> > Factory
> > > stage 1 and don't mess with the needles
> > > snip <
> >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> > > Subject: Two Bros Racing dual oval slipons and Stage 7 Kit
> > continuation )
> > >
> > > snip <
> > > RESULT: Gutless engine from start to end.
> > >
> > > Plug reading: Pearl white ceramic and white/grey rest (checked after
> > 50 miles
> > > along country roads and later on heavy traffic for 1/2 an hour till
> > I got
> > > home ).
> > > My belief: bike running too lean.
> > > Best regards, Charles ( [EMAIL PROTECTED] )
> >
> >
> > .............................................
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> > .............................................
>
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