Just ordered a HyperCharger and Progressive Front springs

[SuperboyX]

Well, Just getting organized for the winter months. I need to do something during the cold months so now starts the preparations. Just order a HyperCharger with adaptor kit to go on my ace. I always thought they looked cool. I also ordered a set of progressive front suspension spring which should improve how the bike handles quite a bit. I'll be sure keep a record of how things go when I start, which won't be until the christmas break.

If any one that has installed one of these on their 750ACE and has any tips on jetting and tuning that would be great to have. My bike has V&H Cruisers and a stage 1 jet kit. I plan on going to stage 3 jetting with the HyperCharger as well. Worst case scenario for me with be to have a local performance shop fine tune things at the end. (Don't want to go that route as the dyno tuning runs around $350)

I'll keep you all informed when I get started.

[Scrapdog2grand]

The carb vents have to be piped to the HC as well, or it wont run well at all once you get up to highway speed - the pressure in the fuel bowl has to increase with the pressure in the intake.
the back of the HC presents the least amount of problems, and it should come predrilled there.
you can get a smaller 1/8thread x 3/8 or 5/16 inside diameter brass pipe fitting and even drill it out if needed. the one the comes with the kits is a large plastic pipe fitting and may serve your needs just fine.
if you put it in front of the air filter, the air pressure get a little to high, and you end up surging with crosswinds, and/or sooty plugs.

may want to get some extra jets from Dynojet 128,130,132,136,even a 140, $2.00 each plus shipping - the HC adaptor should come with 134, and 138.

needle on 2 1/2 is to lean, it will run well though. anywhere from 3 to 4 it will run good, and hopefully should get good plug reads.

only other thing I can tell you is to keep an eye on the plugs after a few hundred miles, yould be looking for aluminum specs fused to the insulator on the plug. also it will be more likely in the hotter weather. need a good 10x lens or better to see it possibly, my eyes are shot.

I also had to change the clutch springs after the install, I could make the clutch slip while shifting for 2nd to 3rd full throttle almost every time if rearly beating on it.


let me know how those front springs turn out,
I am goint to get a set of front and rear the spring most likely.

[SuperboyX]

Thanks for your input ScrapDog. I defiantly plan on pressurizing the carbs as noted. You say the needle on 2 1/2 is to lean, are you referring to where the clip goes on the needle? I read before to keep the clip on the third notch if i can remember correctly.
I have already completed the 4 degree timing mod along with installing the barrett clutch spring so I will not have to worry about the clutch slipping. I think my main concern will be the getting the jets size correct. Sound like a lot of assemble, test, disassemble change, assemble, test, and so forth to get it to run smooth. That seems to be the only thing I dread the most.

[shadowdreamer]

Originally Posted by Scrapdog2grand

the pressure in the fuel bowl has to increase with the pressure in the intake.

Not saying you're wrong, but this is certainly different than what I always believed.
I always thought that the carb vents needed to be at atmospheric pressure without being increased by air velocity.

[MinnesotaGreg]

Good decision on the progressive front fork update......I love Honda, but every one I've had has horrible suspension.

It's so frustrating to me that an off the shelf stock Honda motorcross bike can land a 100 foot high jump without breaking a sweat. Yet drive one of their street bikes off the show room floor and you'd think they forgot to add in suspension.

Be warned, once you update the front forks you'll realize how bad the p.o.s. rear suspension is and then you'll want to update that too.

[SuperboyX]

Originally Posted by shadowdreamer

Not saying you're wrong, but this is certainly different than what I always believed.
I always thought that the carb vents needed to be at atmospheric pressure without being increased by air velocity.

I think your right. The pressurization should keep things at an atmospheric state as the intake pressure increases.

[SuperboyX]

Originally Posted by MinnesotaGreg

Good decision on the progressive front fork update......I love Honda, but every one I've had has horrible suspension.

Be warned, once you update the front forks you'll realize how bad the p.o.s. rear suspension is and then you'll want to update that too.

Good to know. I might just have to do that as well, either before spring or right after.

[SkullCrusher]

Idk about the 'pressurizing the float bowl' thing either...doesn't sound right. Along with springs you may want to go a heavier weight on the fork oil.

As far as hondas having junk suspenders from the factory, go take a cbr600 f4i for a spin and tell me if you still feel the same.

[Scrapdog2grand]

with the HC intake once you get up to highway speed there is little or no intake vacuum. the air pressure from the ram air effect will push the fuel from the carb basiclly right back into the float bowl, causing surging or total bogging. this is wht the float bowl gets pressurized, so the float bowl pressure comes up with the intake pressure, similar to what Superboy stated to keep the difference between the 2 equalized. Ive done the comparison with and without, so whatever dosnt sound right dosnt matter. unless you have this style intake and done your homework, you wont know, or it wont sound right.

[adlowe]

Originally Posted by MinnesotaGreg

Be warned, once you update the front forks you'll realize how bad the p.o.s. rear suspension is and then you'll want to update that too.

More likely, he'll figure out just how bad his front tire is and want to upgrade that first. Taking all that mush out of the front end reveals a lot about the front tire.

The rear suspension upgrade should DEFINITELY be on the list. Costs quite a bit more than the front, though, so it can be tougher to budget. Worth it anyway.