Anyone Use Dynojet Kit? Improvements? (Or Power Commander for Injection crew!)

Soldato
Joined
22 Apr 2008
Posts
3,922
Location
Bryn Celyn Wales
Well, my bike (CBR600FX) is in getting Motad stainless downpipes and while there, getting carbs sorted with a nice new stage 1 Dynojet kit then set up on a rolling road...

Anyone else done this on their carb bike? Or anyone using a powerr commander and noticed improvements etc?
 
Had a Power Commander 3 USB fitted to my 2005 ZX6R and properly setup, made a hell of a difference 116bhp at the rear wheel, more mid range and much better throttle response.

Getting my Aprilia RSV1000R fitted with a Power Commander 5 and an advanced map done on Wednesday, hoping for similar results :cool:

Chris
 
I have a Factory Pro jet kit on my Fireblade, can't say how much difference it made on it's own as I fitted an Akrapovic full system and modified airbox and Factory Pro filters at the same time, but it goes very well compared to standard and the fueling feels perfect.

Didn't want to use a Dynojet kit as I only ever read bad things about the needles causing premature wear on the jets.
 
For carbs they are an absolute pain to tune in if like me you refuse to pay the extortion a dyno run or seven will cost. But the results when you get it right are so rewarding. I wouldnt say you get a power increase by much if any sometimes but you do increase the rideability in different areas of the rev range. I spent months tuning my 97 cbr6 right, once tuned she was an animal. Reduced my fuel economy down to 40mpg according to fuelly.

Edit: setting up on a rolling road is somewhat a false economy as the conditions of a controlled test are useless once you get into some real world riding. That an the dyno will only get you intona ball park area. Prepare for many a carb pull.. i ended up buying new rubber boots.. that how meticulous i was with my tune.
 
Last edited:
strange, mine was just fit as per the instructions, with the K&N/pipe
never needed to remove the carbs over n over, that's on both bikes I have fitted them too.
the only adjustment you have is with the needles anyway, the 3 different jets you get are for the different combo's ie totally stock, stock air filter with pipe and K&N with pipe.
 
Last edited:
Still need to get a PC for my Sportster, they aren't known to run the best standard, so will definately need done since I've changed the exhaust, and will be changing the air intake soon.
 
I have a PC5 with decat headers on the GS. Makes a huge difference to the ride ability of the bike, especially low down.

I used a downloaded map at first, then had a proper dyno run. I'd say I got 70% of the gains from the standard downloaded map, but the dyno time was worth it (cost me £120)
 
I have a PC5, using the dynojet map got me 95bhp at the rear wheel, using a proper tune got me 112. This was at 95f and 95% humidity (it was hot that day!).

Well worth it.

+1

Makes all the difference if when fitting you have the bike mapped along with it, depending on the skill of the tuner but should see a nice gain.

Pointless mind if the bike is still stock imo, combined with a full system and filter though it's awesome.

My R6 is booked in to have a Leo Vince system installed tomorrow and will be getting the same treatment.
 
It's not pointless, on many bikes it can remove problem areas in map that cause snatchy throttle response or flat spots, as well as potentially giving some power increase.
^^
Also gets rid of the dip in the power between 5-6k rpm where they do the noise tests, well on carbed bikes for sure, not sure about newer injected bikes if they still have the dip
 
It's not pointless, on many bikes it can remove problem areas in map that cause snatchy throttle response or flat spots, as well as potentially giving some power increase.

^^
Also gets rid of the dip in the power between 5-6k rpm where they do the noise tests, well on carbed bikes for sure, not sure about newer injected bikes if they still have the dip

Point taken, didn't think of it in that regard :)
 
Hammer & Tong in Warrington. Had it all fitted, friggin lovely stuff... look at tghe terrible running with the Delkovic headers.... blue line..,. compared to how it's now running with the Motad headers and a dynojet kit... running like a new bike, feels perfect!

Also just upgraded the Voltage Rectifiers with these bad boy... see how much bigger the heatsink is...



 
That's not bad at all pug considering she's an oldish bike,I wonder if they could have smoothed out the power with the delkevik headers on with a tune up once your dynojet kit was fitted?
Nope mate, there was a humungous flat spot at 7.2k, that no way they could've. Basically and this is for all CBR600's upto 2005, DO NOT BUY, BLACK WIDOW, DELCOVIC or other cheap stainless downpipes. It's because they don't have the breather piping across 1-2 and 3-4 like OEM Honda... only Motad do and this is why MOTOD get a pefect power curve... basically you're robbing peter to pay paul with any of the other cheapo ones... I'm selling them things on ebay, best thing for them. The quality difference between the Motad and Delco's was mental... the metal was so much thicker, welds a lot better and of course having the breather pipes across helps.
 
Edit: setting up on a rolling road is somewhat a false economy as the conditions of a controlled test are useless once you get into some real world riding. That an the dyno will only get you intona ball park area. Prepare for many a carb pull.. i ended up buying new rubber boots.. that how meticulous i was with my tune.

I'd disagree with you there. A good dyno operator will do measured runs at a range of throttle openings, and he'll be doing it with a lambda sensor in the exhaust to ensure he's getting the best possible A/F ratio- at the end of the day that's the bit you're trying to get right doing it manually, the dyno just takes the guesswork out of it.

It's a skilled process, which is why it isn't cheap.
 

Pah, amateur :D This is what a regulator upgrade looks like:
WP_20140526_004_zpsb14fe5a1.jpg
 
Back
Top Bottom