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@  wilson68 : (09 February 2019 - 07:03 AM) kn filter
@  wreckless : (08 February 2019 - 06:43 PM) just getting used to this site. have an original xjr 1300, 03 plate, black, with the nice paint job. I love it, but not had a big bike before, so still,l a bit nervous of it, but will definitely keep it, 32,000 on the clock, looks lovely. light as a feather when you ride it, but quite heavy, so i find hill starts and right hand turns hard. pleased to join this forum.
@  wreckless : (08 February 2019 - 06:38 PM) Hi everyone.
@  bikerlen : (11 January 2019 - 08:13 AM) All I want is some help withe the wiring. When I got my bike some twat had cut the alrm out. All I want know is How do I sort. I've been a motorcycle mechanic for 34 years but cant get my head around all the frigging black wires. If I cant sort I'm going smash the thing to peices.
@  kylexv750 : (12 December 2018 - 05:01 AM) cafe
@  Tinderbox : (23 November 2018 - 12:31 PM) Afternoon all. Happy to be here with my '03 1300!
@  Hoii : (22 November 2018 - 10:36 AM) Hi all new to site not long had my XJR1300
@  KevKS : (28 October 2018 - 04:16 PM) Done it... Easier than I thought!
@  KevKS : (28 October 2018 - 02:02 PM) Just bought a 07 plated XJR1300 - Chain rather loose gonna have a go this afternoon!
@  Jimbob : (14 October 2018 - 08:22 PM) raise the bars
@  Tilt : (13 October 2018 - 09:35 PM) hi all new to site from Cambridgeshire
@  charvicvic : (05 August 2018 - 02:48 PM) k&n
@  audriusn : (24 July 2018 - 02:33 PM) damn :) does anyone know the clutch hose length?
@  audriusn : (24 July 2018 - 02:32 PM) clutch hose
@  Joes : (05 July 2018 - 01:47 AM) as I delete here my account
@  Conker : (04 July 2018 - 06:14 AM) Hi all new to the site, put a post into the new members whos who
@  Dachley : (25 June 2018 - 04:50 PM) Tyres
@  AndyF : (04 June 2018 - 12:10 AM) seat off, remove 12mm bolt, lift up tank from seat end and then spend a few mins dropping the tank on you hand as you try to remove the fuel pipe and breather
@  5eanBarton : (02 June 2018 - 07:14 AM) tank removal
@  FastFreddy : (29 May 2018 - 05:47 PM) looks like this forum has been abandoned

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Dynojet Stage1


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4 replies to this topic

#1 bettyswollokss

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Posted 08 October 2018 - 05:04 PM

I'm not impressed with the so called 6sigma jet kit. It was basically just a bunch of jets and washers. On the dyno it made very health torque at 86ftlbs, but it was running so rich up top we stopped going for a bhp pull at 99.2bhp. I don't go above 6krpm that often so this doesn't bother me one bit, more than happy with 86ftlb! But now I know it's running so bad it's time to fix it, so just bought a dyno jet kit for it. Has anyone had any experiance of the stage1 kit on the XJR?
I'm Only 4fut3 But I Look A Lot Bigger From A Distance?

#2 bettyswollokss

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Posted 08 January 2019 - 01:56 PM

I'll take that as a no then!
Fitted the kit, DJ100 jets as I've got the full acro with pipercross and airbox mod. What a difference it's made. Lovely from the off and revs nice and clean all the way to the limiter.
I'm Only 4fut3 But I Look A Lot Bigger From A Distance?

#3 Dirkster

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Posted 11 February 2019 - 10:42 PM

Hi Betty,  have you had a re-run on the dyno yet to see what the power and torque figures are now?

 

I'm interested in doing some simple tuning mods myself, but I'm unsure as to what actually 'works'.  It's nice to see some 'sensible' figures for a change (impressive torque btw).

 

I've scoured the net and other forums for before/after dyno readings and found fantasy figures of around the 130BHP mark.  I think we all know that a 45BHP+ increase over stock (assuming 85BHP max at the back wheel) would take a bit more than a pipe, airbox mod, K&N air filter and a stage 1 kit.

 

At the moment my old girl only has a Remus Revolution and K&N air filter (in the stock air box).  I had tried the 4 degree ignition advancer, but only experienced very poor results - so I binned it.

 

The fact that you've got your XJR running cleanly through all the rev range is very encouraging - and impressive.



#4 bettyswollokss

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Posted 12 February 2019 - 10:48 AM

Hiya Pal, no not had it back on the dyno, I'm waiting till I need a new rear tyre as it takes a few miles off a tyre on the dyno.
I've seen 130 mentioned, but I don't think it's possible without bigger carbs, cams or pistons. I'll be happy with anything over 120 as long as I don't lose the torque.
The dynojet kit is worth the time and effort, the airbox mod makes sense when you look at it. Surprised to hear you say that about the advanced, I've had nothing but positive feedback, and I've fitted a couple to mates bikes.
The single biggest boost to the grunt of the thing was a gearing change, I'm running 17/41 at the moment, thinking about going to 43 this summer just to see!
What year is yours Mate?
I'm Only 4fut3 But I Look A Lot Bigger From A Distance?

#5 jooles

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Posted 13 February 2019 - 08:01 PM

running black top carbs on a 2004 ,individual k&n filters full race akro system ,had it all set up at pdq in berkshire and getting 134bhp at the back wheel ,and it pulls like a train ,done 5000 miles on it last year and never missed a beat,,,,,so my point is 130+bhp is very easily achieved with a few quid spent in the right places,, 






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