Triumphrat

ARC · 05-17-2009, 12:02 PM

I dunno...$86 seems like a lot for springs, needles, shims, and stickers that I may not need right now.

I'm currently running a mostly stock setup. I have performed an aggressive bafflectomy and opened the mixture screws to 2.75, and was planning on bumping the mains to 115 to provide a little more midrange power.

My mechanic insisted that I buy the DynoJet kit, but I figured a $6 pair of jets would be a better place to start, at least until I make any changes to the intake side.

Opinions?

propforward · 05-17-2009, 12:07 PM

Having messed around with the dynojet kit - if I were to do it again I wouldn't bother. There's really nothing that kit does for you if you're going to alter the airbox, that can't be done with keihin jets and shims under the needle.

I am still using the springs and needles, but basically only because I shelled out the money for them.

30942 · 05-17-2009, 12:27 PM

Ditto what Prop said..

Though I've not used the DynoJet, I really think you are better off getting a selection of "original" jets from NB or BC and experimenting a little with the various sizes (NB seems to be a little quicker on the shipping). In my case, I think I started at 135's and kept going back and forth 'til I finally ended up at 122's. That was just with the exhaust - now I have jets laying around for when/if I do any more inhale/exhale exercises.

Use the jetting calculator on Dinqua's site (www.dinqua.com) and you'll get pretty close to what you need (I think the calc is a bit rich).

dkreidel · 05-17-2009, 06:17 PM

Agreed. One of my 07 T100's was jetted with a DJ kit; the other with a collection of Keihin jets. I must say the throttle response is better with the DJ spring, but not enough to justify the price delta. I'm told it is possible to emulate the DJ spring by drilling the pilot bleed hole in the slide, but that seemed a bit too permanent for me.

Dick

ARC · 05-17-2009, 07:48 PM

thanks gentlemen

10 bucks for jets and a couple shims is much more reasonable

sledgenz · 05-18-2009, 02:10 PM

Like many on here I tried different jets, different numbers of shims and even Thunderbird sport needles. It seemed I could not get everything working perfectly at the same time. mostly too rich poor starting and poor fuel ecomony. I tried a DJ kit, (was cheap at $100nz) and all I can say is they must know what they are doing. I even emailed them for advise, they suggested a slight main jet change to compensate for my setup and it was spot on. I think the jets are probably overpriced but the combination of the needle and the spring is spot on and hard to beat.