 Pat's calculator
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Joined: Jul 2006
Posts: 15
Complete Newb
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OP
Complete Newb
Joined: Jul 2006
Posts: 15 |
While browsing past topics, I saw reference to the above for calculating main jet size. I did an advanced search but couldn't find the link. Could someone please clue me in.
Currently using a 130 with Unifilter, TORs, thruxton needles.
Running a bit rich but full throttle checks are difficult here, not enough fast police free roads.
Stu
stu
2001 Bonneville
2003 Ninja 250
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Re: Pat's calculator
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Joined: Jan 2005
Posts: 12,877
Should be Riding
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Should be Riding
Joined: Jan 2005
Posts: 12,877 |
Right above is a sticky thread "new link to Dinqua's site". Click it, live it, love it, learn it. 
Benny
Black & Silver '02
Too many mods to list
Not enough miles ridden
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Re: Pat's calculator
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Joined: Jan 2005
Posts: 6,308 Likes: 4
Worn Saddle
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Worn Saddle
Joined: Jan 2005
Posts: 6,308 Likes: 4 |
A word to the wise is not necessary. It is the stupid ones who need the advice.
Pat
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Re: Pat's calculator
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Joined: Jan 2005
Posts: 211 Likes: 2
Adjunct
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Adjunct
Joined: Jan 2005
Posts: 211 Likes: 2 |
I ve been on this site for a while and never saw this Pat!Nice and easy for us no teck guys. Great job.
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Re: Pat's calculator
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Joined: Jul 2006
Posts: 15
Complete Newb
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OP
Complete Newb
Joined: Jul 2006
Posts: 15 |
stu
2001 Bonneville
2003 Ninja 250
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Re: Pat's calculator2
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Joined: Jul 2006
Posts: 15
Complete Newb
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OP
Complete Newb
Joined: Jul 2006
Posts: 15 |
JUst used the program, very impressive. Great to have guys like this in our midst that can help fumblers like me.For the mods I'm playing with the main jet sizes ranged from 126 to 133 (TOR v Bub, Thruxton needle v stock)and it so happens I'm currently running a 130, so, I'm pretty happy about that.
One smart arse question- how was this program developed? Was it by Dyno with EGA???
stu
2001 Bonneville
2003 Ninja 250
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Re: Pat's calculator2
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Joined: Dec 2005
Posts: 1,074
Learned Hand
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Learned Hand
Joined: Dec 2005
Posts: 1,074 |
And is it based on the 790?
Any changes if running the 865?
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Re: Pat's calculator2
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Joined: Jan 2005
Posts: 6,308 Likes: 4
Worn Saddle
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Worn Saddle
Joined: Jan 2005
Posts: 6,308 Likes: 4 |
Bollen,
I used values I personally have tried with dynos as well as everyone submitting info to me for the calculations.
It is pretty accurate you will find. The only places where it may be a little off is with modded stock pipes (due to varied backpressures) and drilled airboxes, again due to differences in hole size and such) But still accurate enough.
This is for the 790 270º motor by the way. BUT Some folks have told me that they have used it with success for the 865 270º motors as well.
If I had addiditonal information form the regular Bonnie guys and the 865cc guys, I could add to it to fine tune even more.
But at this point in time, I think it is adequect.
A word to the wise is not necessary. It is the stupid ones who need the advice.
Pat
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Re: Pat's calculator2
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Joined: Dec 2005
Posts: 1,074
Learned Hand
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Learned Hand
Joined: Dec 2005
Posts: 1,074 |
Thanks Pat,
I'm removing the Epcos and replaceing them with Sceptres.
I'll use your program and compare with what is in the carbs
now and what I install with the new pipes and send you the
info. The Epcos then go on Nancys BA.
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Re: Pat's calculator2
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Joined: Jul 2006
Posts: 15
Complete Newb
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OP
Complete Newb
Joined: Jul 2006
Posts: 15 |
With the 360 degree firing on the Bonneville, would you expect to get more or less induction effect from exhaust scavenging than with the 270? Presumably this would affect jetting to a modest degree?
Stu
stu
2001 Bonneville
2003 Ninja 250
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Re: Pat's calculator2
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Joined: Jan 2005
Posts: 6,308 Likes: 4
Worn Saddle
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Worn Saddle
Joined: Jan 2005
Posts: 6,308 Likes: 4 |
Quote:
With the 360 degree firing on the Bonneville, would you expect to get more or less induction effect from exhaust scavenging than with the 270? Presumably this would affect jetting to a modest degree?
Stu
I don't think that would matter that much, but the 360 motors are different in their jet sizes they seem to use, (they are smaller - usually they run in the 120 range with open boxes and pipes) but we get more hp and torque then they do.
A word to the wise is not necessary. It is the stupid ones who need the advice.
Pat
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Re: Pat's calculator2
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Anonymous
Unregistered
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Anonymous
Unregistered
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Dinqua- Just wanted to take the opportunity to thank you for the effort you've put in your site and making it available to members of the ignorant masses like myself. Armed with only the shop manual, I'm sure I would have botched up my valve adjustment and carbs. Whenever I'm working on my bike, truck, etc., it would never occur to me to take pictures and spend the time you have.
Thanks.
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Re: Pat's calculator2
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Joined: Jan 2005
Posts: 6,308 Likes: 4
Worn Saddle
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Worn Saddle
Joined: Jan 2005
Posts: 6,308 Likes: 4 |
Ah shucks, you're embarassing me...  Thanks though.
A word to the wise is not necessary. It is the stupid ones who need the advice.
Pat
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Re: Pat's calculator2
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Joined: Jan 2005
Posts: 7,630 Likes: 7
Monkey Butt
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Monkey Butt
Joined: Jan 2005
Posts: 7,630 Likes: 7 |
Hey Pat, what pipes should I select if I have the Triumph long off roads? I selected stock with one baffle drilled just to get a number, but would that be fairly accurate?
We all like to think of ourselves as rugged individualists. But when push comes to shove most of us are sheep who do what we are told. Worst of all, a lot of us become unpaid agents of whoever is controlling the agenda by enforcing the current dogma on the few rugged individualists who actually exist.
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Re: Pat's calculator2
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Joined: Dec 2005
Posts: 1,074
Learned Hand
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Learned Hand
Joined: Dec 2005
Posts: 1,074 |
Quote:
If I had addiditonal information form the regular Bonnie guys and the 865cc guys, I could add to it to fine tune even more.
OK Pat, the 04 BA stock with AI removed and the 05 SM with Epcos, go to the Dyno tomorrow! That help?
Then when I put the Sceptres on the SM and the Epcos on the BA, off to the Dyno again. 
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Re: Pat's calculator2
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Joined: Jan 2005
Posts: 6,308 Likes: 4
Worn Saddle
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Worn Saddle
Joined: Jan 2005
Posts: 6,308 Likes: 4 |
A word to the wise is not necessary. It is the stupid ones who need the advice.
Pat
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Re: Bonnie info.
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Joined: Jul 2006
Posts: 15
Complete Newb
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OP
Complete Newb
Joined: Jul 2006
Posts: 15 |
As soon as my extra jets arrive this week, I will be dynoing my Bonny first with TOR's, then a second trip with Bub s. That should help the database.DEpending on the EGA results I hope I can afford to evaluare Dynojet v.Thruxton needles at a later date.
Stu
stu
2001 Bonneville
2003 Ninja 250
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Re: Bonnie info.
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Joined: Dec 2005
Posts: 1,074
Learned Hand
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Learned Hand
Joined: Dec 2005
Posts: 1,074 |
Oh yea, the Dyno will do exhaust gas stuff also. 30 bucks a pop, 8 miles away! To back up results, going 25 miles to another Dyno, run again on all setups. 
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Re: Pat's calculator2
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Joined: Jan 2005
Posts: 7,630 Likes: 7
Monkey Butt
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Monkey Butt
Joined: Jan 2005
Posts: 7,630 Likes: 7 |
Quote:
TOR.
Duh?!? You’d think after all those years in the Navy I’d speak better acronym.
We all like to think of ourselves as rugged individualists. But when push comes to shove most of us are sheep who do what we are told. Worst of all, a lot of us become unpaid agents of whoever is controlling the agenda by enforcing the current dogma on the few rugged individualists who actually exist.
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