Honda CBR 300 Forum banner

21 - 40 of 45 Posts

·
Registered
Joined
·
289 Posts
Wow, just got an email back from jettuning saying they canget them again. I believe dynojet isnt making them have a minimum order of 10 anymore.

I find it amusing that this happens after i emailed dynojet with links to this thread etc im sure its just coincedence tho.

But yeh, if I'd waited barely a week i wouldn't have any guess work. That said, the bonus of the wb2 from hardracing is its presetup to give the altered stock O2 sensor.

I'm not sure how the jettuning pcvs work around the O2 on peoples cbr250r.

I might need to join their forums and ask.
From what I've seen there's a couple active people using those on the 250 forum just ask around I'm sure you'll have good luck. That's funny you've done all the hard work already. Definitely a good write up though.
 

·
Registered
Joined
·
256 Posts
Discussion Starter #22
I think they just disconnect the O2 sensor like bazzaz and ejk.

Jetttuning have given me the 300 base map. Hopefully the grom pcv accepts it.

If not it should be easy to calibrate the speed and gearing. It still has tables for 6 gears.

 

·
Registered
Joined
·
256 Posts
Discussion Starter #24
Had to manually input jetts maps as not compatible, but i never really intended trying out other peoples maps, needs to be dyno'd. I just did the timing maps for now. Took it for a spin. Through the gears. No issues.

Ill load the 80-100% fuelling maps next. Leaving the 02 sensor in for now. See how it goes, then next ill remove the O2 and input the rest of the fuelling maps.


i have a cheap danmoto exh on the way so i can weld the wideband into the header and get that to alter the 0-60% fuelling.

I wont take it in for a dyno tune until the recalls done with the hicomp piston and cams fitted. Hopefully ill get it on the dyno just for a power run before to see how its going and then see what the gains are.

A mate runs an automotive workshop with 2wd dyno. Im going to chip in with him and another guy to get the motorcycle attachment, but not for a few weeks yet.
 

·
Registered
Joined
·
256 Posts
Discussion Starter #26
I loaded the 80-100% throttle fuel maps. Im actually surprised at the difference the ignition timing adjustments have made. I didnt really expect anything noticeable and mainly got it for when i fit the cam and piston. But its overall more responsive and torquey, i found my self cruising in a higher gear with lower rpm than usual.

Dynojet gave me the rev extend code but i also need them to send me a table with the extra rpm rows.

Ive also done a seperate map for the O2 sensor removal which ill give a little test on the weekend.

So all up, really apart from having to contact dynojet for a couple alterations on the software if you want to map to 10500rpm, its plug and play. Tbh i find the bike still performs best to 9000rpm and dont see any benefit going over and if i wasnt fitting the cam etc id prob wouldnt even bother with the higher rpm map.

I still find it interesting how there are large areas of the fuelling map where fuel is removed in the 80-100% throttle region. Contrary to popular belief.
 

·
Registered
Joined
·
2,083 Posts
I loaded the 80-100% throttle fuel maps. Im actually surprised at the difference the ignition timing adjustments have made. I didnt really expect anything noticeable and mainly got it for when i fit the cam and piston. But its overall more responsive and torquey, i found my self cruising in a higher gear with lower rpm than usual.

Dynojet gave me the rev extend code but i also need them to send me a table with the extra rpm rows.

Ive also done a seperate map for the O2 sensor removal which ill give a little test on the weekend.

So all up, really apart from having to contact dynojet for a couple alterations on the software if you want to map to 10500rpm, its plug and play. Tbh i find the bike still performs best to 9000rpm and dont see any benefit going over and if i wasnt fitting the cam etc id prob wouldnt even bother with the higher rpm map.

I still find it interesting how there are large areas of the fuelling map where fuel is removed in the 80-100% throttle region. Contrary to popular belief.
Do you mind me asking how much you paid for the PCV Grom version? Does it run the same amount as the 250r/300r PCV?
 

·
Registered
Joined
·
256 Posts
Discussion Starter #29
I bought it from hardracing, as they're the only ones that sell it with the wb2 preprogrammed to mimic the stock narrow O2 with an altered signal to give the grom 13.5afr, which should be the same for the cbr300r. It was cheaper than the official unit from jettuning. $299 for pcv and 249 for wb2 60ish for the gauge.

HARD RACING PERFORMANCE / HARD CORE SPORTS SHOPPING CART - DYNOJET_ (POWER COMMANDERS & Autotune & WideCommanders)

The only way to access the narrow band programming on the wb2 is with the optional pod, which i didnt want to purchase at this time.

I should ad, full credit to john ethel at jettuning for his ign and fuelling maps for the stock cbr.

I prefer the plug and play style of the grom version rather than having to plug in multple plugs and use those positaps...yuck. its far less intrusive and easier to remove.
 

·
Registered
Joined
·
256 Posts
Discussion Starter #30
I was simply asking if the Grom version was only a PGM-FI ECU piggyback? Versus the other PC that piggy backs to all sensors except the 1 spliced TPS wire. Bazzaz has an ECU only piggyback and EJK has a Fuel Injector only piggyback. I have all the PDF's for different brand FC's for the 300 so I know how they install. That's all I was asking as to why you went with the Grom PCV.
I thought I had seen it for sale back when I as looking for FC's but you're saying they don't make them anymore for the 300? I have a friend in my riding group with a PCV on his 300f, he loves it
*edit I see some sites do say discontinued on the PCV but I have found some sites with it still in stock(or so they say)
Was there an issue they had? Why did they discontinue them?
This site says in stock $276 + free shipping(us only maybe?)
https://www.maniacmotorsport.com/products/16-024?utm_medium=cpc&utm_source=googlepla&variant=24242123719&gclid=CjwKEAjwiMe8BRD0ts3Vtv-ohWgSJAAZurk1iOOtLVdKkG0cSa9qrMaUQwE7na12-2NPxFSMRUg-CRoCtubw_wcB
I sent them an email and got the expected reply of "apoligies we put this up to early, its not currently available for the 300. And we will email you when one is available"
 

·
Registered
Joined
·
2,083 Posts
I sent them an email and got the expected reply of "apoligies we put this up to early, its not currently available for the 300. And we will email you when one is available"
Doesn't make sense I know someone with the PCV on his 250r and plenty of people in the 250r forum have them. Guess the 300 model is going to be different than the 250?
 

·
Registered
Joined
·
2,083 Posts
I bought it from hardracing, as they're the only ones that sell it with the wb2 preprogrammed to mimic the stock narrow O2 with an altered signal to give the grom 13.5afr, which should be the same for the cbr300r. It was cheaper than the official unit from jettuning. $299 for pcv and 249 for wb2 60ish for the gauge.

HARD RACING PERFORMANCE / HARD CORE SPORTS SHOPPING CART - DYNOJET_ (POWER COMMANDERS & Autotune & WideCommanders)

The only way to access the narrow band programming on the wb2 is with the optional pod, which i didnt want to purchase at this time.

I should ad, full credit to john ethel at jettuning for his ign and fuelling maps for the stock cbr.

I prefer the plug and play style of the grom version rather than having to plug in multple plugs and use those positaps...yuck. its far less intrusive and easier to remove.
Yah I agree with the 1 piggyback feature. That was 1 reason I went with the EJK
 

·
Registered
Joined
·
256 Posts
Discussion Starter #34
Doesn't make sense I know someone with the PCV on his 250r and plenty of people in the 250r forum have them. Guess the 300 model is going to be different than the 250?
Yes they all got them for jettuning when he had them. But the last yr he had no demand for them and so didnt get more stock until just recently (after i had already purchased this one) when he now has been told he doesnt have to order them in batches of 10.

No the 300 model isnt different, other than the preloaded map.
 

·
Registered
Joined
·
256 Posts
Discussion Starter #35
Yah I agree with the 1 piggyback feature. That was 1 reason I went with the EJK
I Didnt even have to lift the tank to get to the injector. Just removed the side panel to access the ecu and plug. I can also run the extra speed sensor wire to the patch loom, then run maps per gear.

PCV also has inbuilt launch control, doubt ill use it but still its there. Will prob get the quickshifter add on at some point. And can also use it if i add forced induction with a secondary map sensor.

I can also switch between 2 maps, or auto tune on or off by a simple flick of a switch.
 

·
Registered
Joined
·
256 Posts
Discussion Starter #37
I loaded the 80-100% throttle fuel maps. Im actually surprised at the difference the ignition timing adjustments have made. I didnt really expect anything noticeable and mainly got it for when i fit the cam and piston. But its overall more responsive and torquey, i found my self cruising in a higher gear with lower rpm than usual.

Dynojet gave me the rev extend code but i also need them to send me a table with the extra rpm rows.

Ive also done a seperate map for the O2 sensor removal which ill give a little test on the weekend.

So all up, really apart from having to contact dynojet for a couple alterations on the software if you want to map to 10500rpm, its plug and play. Tbh i find the bike still performs best to 9000rpm and dont see any benefit going over and if i wasnt fitting the cam etc id prob wouldnt even bother with the higher rpm map.

I still find it interesting how there are large areas of the fuelling map where fuel is removed in the 80-100% throttle region. Contrary to popular belief.
Lol im an idiot. I didnt notice with the rev extend code email they sent there was an attached file for mapping tables upto 11000rpm. So quickly copy pasted jetts maps onto and loaded them in.

 

·
Registered
Joined
·
256 Posts
Discussion Starter #38
Fitted the speed input wire and calibrated it and the gears. Just had to untape it, remove some plastic sheath on the patch loom wire for pin 17, then crimped a wire onto it then tape up.
Lonely green wire....
 

·
Registered
Joined
·
256 Posts
Discussion Starter #39
So, my danmoto exh arrived and i got the wideband bung welded on and then i got it ceramic coated. Fitted in tgw wideband 2 controller etc. Still have the stock O2 sensor and pair valve connected as i just wanted to see how it runs etc. It appears the ecu tries to run a constant 14.5ish afr all the time, but its not responsive enough as my afrs lean out briefly when i open the throttle until the ecu catchs up.

This is probably where fuel controllers help, with the accl pump feature to give an instant increase in fuel with throttle changes.

Afrs go to 18 (prob max lean) on closed throttle decel.

As my pcV has fuelling maps for 80-100% it sots at a steady 13.5 at the moment.

This exh is way too loud. Baffles on the way.

Ill connect the wb2 narrow band simulator tomorrow.
 
21 - 40 of 45 Posts
Top