Better would be a warning rather than a kill, so that you don't suddenly shut down in the middle of something crucial...
On Sun, Aug 15, 2010 at 12:51 PM, stanley/ Randolph <[email protected]> wrote: > You are sooooo right. It would be best to have a kill switch that activates > if the water runs too low. > > > > ________________________________ > From: Allen Thomas <[email protected]> > To: [email protected] > Sent: Sat, August 14, 2010 5:01:55 PM > Subject: Re: [Nighthawk Lovers] Re: Anybody want to ditch the CV carbs on > their 750 for some racing mikuni flatslides? I also have some other parts > that must go! > > Don't ever let that water tank run dry though! 12.7 is really high > compression, running junk gas without the water would make that engine > detonate and overheat big time. As for VW I was into them for a couple > years, never hot rodded them though just drove them as beaters. With that > gear ratio (5.30 I think), I can see how even a 10HP difference would be a > big improvement. With their stock 60HP they had decent acceleration in 1st > and 2nd. > > On Sat, Aug 14, 2010 at 5:39 PM, stanley/ Randolph <[email protected]> > wrote: >> >> Like I said: with Webers, my Beetle had the equivalent of a dual throat >> but at each intake port, and it achieved 32mpg on the road with a speed of >> about 85 mph, average. Yeah, they were butterfly valves, but the carb >> itself is superior at atomizing the fuel. That is what gets the mileage and >> power up over any other carb with the same size venturi. So I had no loss >> in mileage per gallon, and a definitely pronounced increase in power and top >> end. Normal top speed for a Beetle back then was 85. >> Side draft, btw, uses more fuel, as I understand it. >> The HP could very well increase beyond 47%, with just the addition of >> water injection and a bump up in compression to about 12.7, on the 750. And >> add, along with that, double the mileage per gallon. All on just 87 octane >> gasoline. Plus, less chance of a valve burning, as the water cools the burn >> as it quickens it and enhances its power. Like NOS without the danger. >> >> Stanley >> >> ________________________________ >> From: Aldo <[email protected]> >> To: Nighthawk Motorcycle Lovers! <[email protected]> >> Sent: Sat, August 14, 2010 2:08:56 PM >> Subject: [Nighthawk Lovers] Re: Anybody want to ditch the CV carbs on >> their 750 for some racing mikuni flatslides? I also have some other parts >> that must go! >> >> You would trade approx 5-10 MPG for roughly 25hp gain... always seemed >> like a fair trade to me. The bike will stay every bit as reliable too. >> In some aspects it would become more reliable without the vacuum >> system (Mikuni carbs only require a push-pull throttle cable... simple >> is good). >> >> >> >> These flat slides are modern technology... The stock carbs are >> dinosaurs. These motors are golden and they can produce so much power >> with the right carbs. The old stock Keihin CVs run very lean and >> airflow doesn't compare. It is really only a problem if you want MORE >> POWER!!! Re-jetting the stock carbs can only help so much. I think >> many of us are content with the stock carbs on our 750 but I for one >> thought honda could have set us up a little better. >> >> >> >> Kurt, >> >> I am sorry my friend one of the other NH Lovers beat you to the >> pipes... they're sold. >> >> >> >> Peace and Grease! >> >> >> >> ~Aldo >> >> >> On Aug 14, 10:18 am, stanley/ Randolph <[email protected]> wrote: >> > Almost a 47% increase, to be a little more precise. It does sound a bit >> > far >> > fetched. Not even with an extractor exhaust system. Plus, they are, as >> > you >> > say, double pumpers. Sounds to me, like they'd use a lot more fuel. >> > I would sooner put a couple of Webers on instead. >> > On a Beetle with only a 1776 dual port engine that was >> > statically balanced and >> > CC'd and a c/r of around 8.1:1, my increase in HP with two single >> > throat Webers >> > and an extractor exhaust and a very mild cam for torque not revs made >> > it >> > possible to whip this guy in a Mitsubishi Galant with a 2.0L pushing >> > 142HP. >> > That was without attempting to do so, as I told him about a year later >> > when he >> > saw my Beetle and recognized it from the time my humble Beetle mopped up >> > his Galant. I don't drag from stop signs, but I was in a hurry to >> > get on my way >> > to Fla. that day and I did remember some Mitsubishi next to me breathing >> > hard >> > and really taking off as I turned down a side street. Made me wonder if >> > I had >> > done something to piss him off, or he had a spat with his woman or >> > something. >> > Now, that really exasperated him. >> > That thing (my Beetle) would go over 100mph and get 32mpg doing it. Had >> > to put >> > extra weight in the front for safety. >> > Of course, it wasn't cca/c (closed circuit air conditioning). I had the >> > vents >> > open for air. Sort of like riding a bike without the bugs and road grit >> > from >> > the semi in front of you hitting your arms and getting in your eyes and >> > hair, >> > even with a helmet. >> > But yeah, it was a cage, albeit a happy one... >> > >> > Stanley >> > >> > ________________________________ >> > From: Allen Thomas <[email protected]> >> > To: [email protected] >> > Sent: Sat, August 14, 2010 9:56:24 AM >> > Subject: Re: [Nighthawk Lovers] Anybody want to ditch the CV carbs on >> > their 750 >> > for some racing mikuni flatslides? I also have some other parts that >> > must go! >> > >> > Aldo, I'm a bit skeptical on the 100HP claim. Please educate me. I can't >> > see how >> > changing carburation could net +40% increase. Here is why: both >> > carburator sets >> > are the same diameter so they will flow the same CFM. Even if the slide >> > carbs >> > flowed more CFM, flowing higher CFM only benefits at WOT, so unless the >> > lower >> > CFM carb were seriously undersized would you get any benefit. In fact if >> > the >> > carburator flows a higher CFM than the engine can draw, then you will >> > actually >> > make less power! So taking flow off the table the only benefits of slide >> > carbs >> > over CV are that you can open the venturi faster as it is not depending >> > on >> > vacume to move the slide. This has importance to drag racing; first it >> > allows >> > you do run pods with no ill effect, it also allows you to drop the >> > weight of the >> > airbox, and lastly you can feel if you are opening them at the proper >> > rate (like >> > I said if you're carb flow is higher than engine draw you loose power). >> > You >> > would gain HP by the reduced intake flow of the pods but not over 40%. >> > To get >> > those kind of numbers you would need to cam, change valve springs, and >> > most >> > likely port the head, which would maximize the power output at a higher >> > RPM. >> > Also an ignition advance would be needed which requires a part I have >> > not been >> > able to find. This of course would take away from the drivability of the >> > engine. >> > I can't tell you how many hot rods I have spanked over the years that >> > had a >> > tunnel ram intake with a 750CFM or larger carb on a basically >> > stock small >> > block. Had they known that a dual plane intake with a 600CFM would make >> > them >> > faster they might have had a chance. In car terms what you are doing >> > with slide >> > carbs vs. CV is going from a vacuum secondary to a double pumper. It >> > isn't >> > necessarily an upgrade, it all depends on the setup. >> > >> > On Fri, Aug 13, 2010 at 1:10 AM, Aldo <[email protected]> wrote: >> > >> > I don't know if any of you are interested but I have some racing carbs >> > >> > >> > >> > >that will fit a 1991-2003 NH750 I don't know if the other Nighthawks >> > >have 34mm carbs but maybe they'll fit them too. These are the key to >> > >unlocking some major power in the CB750 motor. It is not for >> > >everyone... 100HP is a big difference from 67.7HP >> > >> > >They are 34mm Mikuni Flatslide racing carbs just like below: >> > >> > >> > > >http://www.orientexpress.com/Universal+Parts+%252526+Accessories/Inta... >> > >> > >If you are interested maybe we can strike a deal... I don't want to >> > >lose too much cash on this but I am not using them so I better sell >> > >'em. >> > >> > >I also have: >> > >> > >Stock NH750 seat in nice shape. $90 Shipped >> > >> > >Stock 4 into 2 pipes in nice shape. $100 + shipping >> > >> > >Stock chain guard in nice shape. $25 Shipped >> > >> > >Stock mirrors also in nice shape. $25 Shipped >> > >> > >-- >> > >You received this message because you are subscribed to the Google >> > > Groups >> > >"Nighthawk Motorcycle Lovers!" group. >> > >To post to this group, send email to [email protected]. >> > >To unsubscribe from this group, send email to >> > >[email protected]. >> > >For more options, visit this group at >> > >http://groups.google.com/group/nighthawk_lovers?hl=en. >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "Nighthawk Motorcycle Lovers!" group. >> > To post to this group, send email to [email protected]. >> > To unsubscribe from this group, send email to >> > [email protected]. >> > For more options, visit this group >> > athttp://groups.google.com/group/nighthawk_lovers?hl=en.- Hide quoted text >> > - >> > >> > - Show quoted text - >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Nighthawk Motorcycle Lovers!" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/nighthawk_lovers?hl=en. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Nighthawk Motorcycle Lovers!" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/nighthawk_lovers?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. 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