Topic: Air Filter & Stack Filter Kit for 550's & 750's / The end, see post #898, pg 36

[voxonda]

Come on fellows, let's leave it at this. Let's look forward, am curious about using this very nice product, myself. Am a fond believer in using stacks but the negative side is, of course, the lack of filtering. Seen these setups used in racing cars of all types up to F1 so the basic is good.
Thanks Brian for your efforts.

Cheers, Rob

[Terry in Australia]

Terry, the original question was geared towards you and what your experience has been with Tintops product. No dyno analysis or anything of the sort is needed, or mentioned. Really just wanted someone with real world experience/testing with these to say "yeah, they kick ass! Buy them!" I was/am holding out for your educated opinion. Let us know.

Fair enough mate, and as I mentioned, as soon as my jet drills turn up and I can test Brians "Anti-Pod" (he's got to come up with a better name than that, methinks........) with a couple of different sized sets of jets, I will definitely let you all know, I'm as keen as you are, I only tried the pods once, and they were terrible. Cheers, Terry.

[odiewan]

Wow, this thread got a tense, didn't it?

ANYway, so I dyno'ed the bike yesterday (got some graphs, will post soon), but something is not right. I did a plug chop and the plugs seemed to tell me the mains were a wee bit small (very light tan).

The dyno graphs indicate the very opposite: really rich (in some places 10:1). We figure the mains are too big, so I go from 130's to 120's and the bike now runs like crap.

I try and go WOT and the bike fall flat on it's face. Could it be that the bike wasn't warmed up yet? Could I have gone too far in the lean direction?

Ok, so we are clear: My bike is a K3, with Pods and a 4 into 1. I did a dyno run because I have access to one and it's not too expensive.

[Flying J]

edit: done

Odiewan:  I cant imagine that a 130 main would be overly rich. I was running 125s on my 750 but it has PD carbs so that is a totally different beast. You are super lucky to have access to a dyno. I want to dyno my 550 when i get the big pistons, ported and cam in there. Ill shell out the cash though i guess.

[Flying J]

so what is the projected time frame for these to come out?

[odiewan]

Yah, I agree with you. I'm going back to the 130s and try a plug chop again.

Well, the shop with the dyno charges $300 to do a full dyno tune, but that means they work on it till it's perfect. If I just want a run, they usually only charge me for half an hour which comes to about $40.

If you are doing most of the tuning yourself, you really only need them to do a pull or two to sniff the air/fuel ratio. Can't imagine that would take more than 1/2 hour.

edit: done

Odiewan:  I cant imagine that a 130 main would be overly rich. I was running 125s on my 750 but it has PD carbs so that is a totally different beast. You are super lucky to have access to a dyno. I want to dyno my 550 when i get the big pistons, ported and cam in there. Ill shell out the cash though i guess.

[Retro Rocket]

Oh, I was unaware you have been testing one. Roll Eyes How did you test the "efficiency?"

FFJ and RR, nobody was being a "dick" or "prick" or "leach" or any other slandering word you have in your vocabulary. It was a pretty straight forward question to those that are testing, which would not be either of you. If it is so simple then there wouldn't be any need for testing in the first place would there. Nobody said anything negative about anybody, until a couple of recent posts by you two, ,

If your reply to me wasn't sarcastic then i'll eat my hat, you WERE being a smart arse and got the appropriate response. And in answer to the rest of your post, maybe you shouldn't decide, if you don't know anything. who then does. My previous answer is correct so what was your problem, If you don't know anything then why am i automatically wrong.?

Retro Rocket and FFJ, quit throwing your insecurities around for all to witness like a couple of pre-teen girls, nobody said anything negative about either of you! Quit being pus**s Cry and go ride your motorcycles.

There you go again being a complete arsehole, it is glaringly obvious that i know more about motorcycles than you, so next time you decide to answer a perfectly normal answer from someone that knows more than you , don't be such a pretentious clown....Also try directing your question at the one you want an answer from, this is a forum and anyone can answer, go back , read my first reply then your answers mate, rolling eye's and all. Smart arse.....

[Flying J]

I deleted my response Retro. Its pointless. We are all know what kind of person he comes across as and there is no point in try to convince him he is wrong.

[Retro Rocket]

I deleted my response Retro. Its pointless. We are all know what kind of person he comes across as and there is no point in try to convince him he is wrong.

Sorry FFj but this has started to be a common theme round here, people deciding with no experience about anything that they know better even after asking for an answer...!! Then this one starts calling us names to make himself feel better....then calls us insecure, must be fun knowing nothing and everything all at the same time.....I think it draws its own conclusions as well....

[Flying J]

I just chalk it up to he burn what ever bridges he wants. When it come time that he needs more answers to his questions its going to get harder and harder the more people pisses off.

[DYSKORD]

It'll be OK Retro Rocket. I promise.
Nobody said you were "wrong." If someone did, then quote it. It would be hard for someone/you to be right or wrong about something they/you have no experience with, in this case "Anti-Pods." Nor did anybody think some "rolley eyes" would send you into a tizzy. I haven't made a claim to know anything. Not sure I made any claims to be "wrong" about. You may very well know more about MCs but thats neither here nor there since we were discussing Anti-Pods and you know no more about these Anti Pods than anybody else, except Terry and Tintop. The only conclusion that can be drawn is that you are/have been making-up/reading-into posts. Nobody said you were wrong, nobody said they were more right than you, and I am pretty sure the names "dick" "prick" "arsehole" and "leach" were thrown around by your buddy FFJ (edited out now of course).
Like I said before it will be OK.

Tell you what, for the sake of others on the forum, how about the two of you and I agree to ignore each others posts? I am as tired of hurting your feelings as you are getting them hurt. Then I have to answer to FFJ because your feelings got hurt. I am sure everybody is over it. Although I am sure its pretty entertaining to some, it should end. Back to topic, huh?

How about those Anti Pods! ! !

[rangelov]

How about a naming contest?

My submission is HP Airbox.

Yeah, I know, really original.

[Flying J]

You know people are just trying to be helpful around here but you always seem to get defensive a be a prick. Read the thread. 2 people have the filters, neither were running pods, one hasn't ridden the bike due to weather and the other is overbore. So why would they know what your stock motor with pods needs? And when someone takes the time and speculates to help you out why are you a d!ck about it. Try to be a little more excepting of peoples advice if your just going to be a leach around here.

Nope its still there.   Im done though

[Retro Rocket]

I'll second FFJ's post as thats the way most here will see it.....your condescending remarks are pathetic, Did you read the responses that you got.?  

I haven't made a claim to know anything

 

Thats correct, and i know that velocity stacks are far more efficient than pods so the jetting and set up will be different as i stated earlier'. Tintop knows that my answer was right and as he said, all bikes will be different so they will have to be tuned to suit, just like any induction change to any internal combustion engine. Bottom line is i will always post where i think i can add to the relevance of the thread and i suppose morons like yourself will always answer like you do, some things just never change....I have no doubt these are better than pods because of their design characteristics and i applaud Tintop for finally doing what most {who know the benefit of a stack design} have been looking for for a long time now. But what would i know...  

Tintop, I know that there are guys here interested in the induction howl associated with pods and a comparison, it would be interesting to know what these will sound like with CV's as they have less of the howl than the stock "K" carbs. Would this be related to the larger bore of the CV's? or because of the different design of the CV's.? I am seriously thinking of getting one for my fuel injection project and after listening to an injected race bike with stacks the "sucking sound" was less prevalent. I know it may seem silly to be worried about induction howl but it was always something i didn't like about pods, apart from other well noted short comings. They look so cool i think i may just have to get one anyway even if i only use it on my "F" build but i will still have to cut the holes for the backing plate myself because i will be using 34mm Mikuni's on that bike..... Do you think that modifying the top part of the original airbox to sit over the Antipod would help with induction noise.? Just an idea i have been tossing around.....

[Terry in Australia]

Hey Mick, what are you going to use for stacks for the 34mm Mikuni's? I've got some 34mm CV's (GS1000) and some 34mm flatslides as well (off a GSXR750 drag bike) and the "Anti-Pod" stacks are way too small for either of them? Cheers, Terry.  

[Retro Rocket]

Hey Mick, what are you going to use for stacks for the 34mm Mikuni's? I've got some 34mm CV's (GS1000) and some 34mm flatslides as well (off a GSXR750 drag bike) and the "Anti-Pod" stacks are way too small for either of them? Cheers, Terry.  

I will look into bikes that came out with 34mm factory stacks into the airbox, surely there's something i can do to make some work....

[Terry in Australia]

Okey dokey, but neither of the Suzuki Mikuni carbs had "stacks" per se, just rubber dongers that connected the airbox to the carbs. If the Mikuni's don't need "stacks" to improve their performance, it might be a good thing, in that you don't need them to be as long as Brian's stacks, but one thing to remember is that CV's are a lot more sensitive to air/fuel ratio, and run like #$%* with pods (at least GS Suzuki's do) so I'm not sure if a freer breathing filter like Brians will work well with them. Cheers, Terry.

[odiewan]

Ok, remember how I had the my bike dyno'ed and the numbers indicated quite rich in the main jet dominated region but when I went from 130 to 120, the bike ran like crap? That made me wonder if the dyno was jacked or the tech goofed.
I decided to go back to what was working before (back to the 130s). I change two and while I was pulling the emulsion tube/main jet combo in the third I noticed something interesting in the bottom of the float bowl....the main jet. The main jet wasn't tight in the emulsion tube and fell out into the bowl.

Immediately I realize why the bike wasn't running right. I pull the last bowl and, low and behold, the same thing happened.

I decide to keep the 120s in and see what happens. My gut feeling was that the dyno was telling the truth. I had no reason to believe there was an issue with the dyno results. These guys dyno 50-60 bikes a week and run a superbike race team.


Glad I did because now the bike runs like a scalded dog from 5k on up when it would peter (sp?) out one I got above 5k. I would be wringing the bike's neck and not get much past 80mph or 5200rpm.

Now it pulls like a freight train from 5k up. 100mph is not a problem.

So, here's the state of tune on the bike:
CB750 K3
Pods
4 into 1 (and a big 1 at that) exhaust
Engine is stock otherwise.
40 idles, haven't messed with the clip location. 120 mains.

Now, I need to dyno the bike again to see where I am.

[Flying J]

Nice. How  is your low end with your pods?

[odiewan]

As you might expect, there is a bit of a stumble right off idle. The dyno charts indicated it's a little lean in the idle jet region. The bike also pops when I downshift with the throttle closed. I was told this indicates lean idle.

The only reason I am running pods was because I couldn't get the stock airbox on the bike. The rubber velocity stacks were so hard I couldn't get them on. I took the stock velocity stacks out of the old box to see if I could get them on somehow. I am thinking of slotting the part that fits around the carb inlet or something to get them on and see how it runs. I would imagine it will run better. I might do some CAD...not computer aided design, but CARDBOARD aided design to hack a temp airbox to see how it will affect the tune.

Nice. How  is your low end with your pods?

[wannabridin]

Hey odie, have you tried wintergreen oil like all the threads on here to soften those boots up?  That should get em soft enough so you can make it all work well!!

[odiewan]

I have seen some threads on this, but haven't tried it yet. I kinda figured that might not be work the effort if  I am getting Tintop's Veloci-filter.

Hey odie, have you tried wintergreen oil like all the threads on here to soften those boots up?  That should get em soft enough so you can make it all work well!!

[odiewan]

Link to my dyno runs on the High Performance -> Dyno Runs thread.

http://forums.sohc4.net/index.php?topic=83748.msg962353#msg962353

Note: I subsequently went from 130s to 120s based upon the air/fuel reading in the 10-11:1 range in the upper RPMs. Much better power now.

[Tintop]

Thanks for posting Odiewan.

[Grnrngr]

I have seen some threads on this, but haven't tried it yet. I kinda figured that might not be work the effort if  I am getting Tintop's Veloci-filter.

Hey odie, have you tried wintergreen oil like all the threads on here to soften those boots up?  That should get em soft enough so you can make it all work well!!

Might wanna try it just cuz it's one of the few things you can do on the stove in the house that the girls DON"T get upset about....notalotta effort in throwing 4 chunks o rubber in a pot and boiling them...