Since '02 xBhp is different things to different people. From a close knit national community of bikers to India's only motorcycling lifestyle magazine and a place to make like-minded biker friends. Join us

Castrol Power 1

Check engine oil level before every ride.

Our Partners

Announcement

Collapse
No announcement yet.

Fiero/FieroF2/FieroFx

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Utkarsh93
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by prd8r View Post
    Hi Utkarsh. I guess you found the info here. It's on pg 16. Though I haven't changed my swingarm, the ones mentioned should be a good fit without too much mods. Maybe even rtr 200 might fit. But I'm skeptical about that as it has a slightly diff chassis from the fieros and rtrs. I haven't come across cbr 250 swinger swap till now. But I remember seeing a honda unicorn monoshock and swingarm set up on a fiero chassis. If I get the pic, will add it here. For your 200 cc engine mod, it should be decently easy to do. It's already been done here as you may have seen by gixxer. He's the resident fiero expert here.
    Thanks for sharing your experience pr8r.
    I read about the swingarms in Pg 16.
    Actually the CBR 250 R Swing arm Wont fit because its totally different , even if someone fits , he has to do a big modification in the swingarm. I will post the pics.
    I thought it is impossible to fir RTR 200 Head and Block in Fiero engine coz it looks different from outside. After seeing gixxer's post , i came to know that it is also possible. Big fan of gixxer.
    He tries all the possible mods which can be done and shares it here. Big respect for him.

    Leave a comment:


  • prd8r
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by Utkarsh93 View Post
    Thanks for the response prd8r.
    Firstly i am doing the chassis work,
    I have got all the parts for the front.
    Had planned to fit 130/140/150 tyre on the rear but i am not able to fit in this swingarm. Dats y planning to change to CBR 250R Swingarm, I heard its best for customizing the rear of any bike but wanted to know whether it will fit or not.
    Can u tell me , at which page the compatible swingarm discussion is done ?
    Later on i am planning to fit RTR 200 Head and block kit after the chassis mod.
    Hi Utkarsh. I guess you found the info here. It's on pg 16. Though I haven't changed my swingarm, the ones mentioned should be a good fit without too much mods. Maybe even rtr 200 might fit. But I'm skeptical about that as it has a slightly diff chassis from the fieros and rtrs. I haven't come across cbr 250 swinger swap till now. But I remember seeing a honda unicorn monoshock and swingarm set up on a fiero chassis. If I get the pic, will add it here. For your 200 cc engine mod, it should be decently easy to do. It's already been done here as you may have seen by gixxer. He's the resident fiero expert here.

    Leave a comment:


  • Utkarsh93
    replied
    Re: Fiero/FieroF2/FieroFx

    After lot of research outside and in these threads , i decided to go for RTR 180 Swingarm.
    A mechanic told me that RTR 200 Swingarm will also fit if i want to go for monoshock but i didn't saw anyone saying about fitting RTR 200 Swing arm. Can someone tell me if he has used RTR 200 Swing Arm in Fiero F2 because i am in a big confusion now. If it fits i will go for RTR 200 Swing Arm.
    Also i want to keep spoke wheels but want to fit disc brakes in the rear wheel, can someone tell me which hub with the option of rear disc will fit in RTR Swing Arm.
    Any help will be appreciated.

    Leave a comment:


  • Utkarsh93
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by prd8r View Post
    Welcome to the forum.
    You've picked a nice chassis and engine platform for your cafe racer project.
    If you search in the past pages, you'll find detailed info about compatible swingarms.
    What else have you planned for your bike?
    Thanks for the response prd8r.
    Firstly i am doing the chassis work,
    I have got all the parts for the front.
    Had planned to fit 130/140/150 tyre on the rear but i am not able to fit in this swingarm. Dats y planning to change to CBR 250R Swingarm, I heard its best for customizing the rear of any bike but wanted to know whether it will fit or not.
    Can u tell me , at which page the compatible swingarm discussion is done ?
    Later on i am planning to fit RTR 200 Head and block kit after the chassis mod.

    Leave a comment:


  • prd8r
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by Utkarsh93 View Post
    Guyz i am working on my fireo f2 to make it a cafe racer.
    Needed some assistance regarding the same.
    Just wanted to know , Is it possible to fit CBR 250R Swingarm in fiero f2 ?

    Welcome to the forum.
    You've picked a nice chassis and engine platform for your cafe racer project.
    If you search in the past pages, you'll find detailed info about compatible swingarms.
    What else have you planned for your bike?

    Leave a comment:


  • Utkarsh93
    replied
    Re: Fiero/FieroF2/FieroFx

    Here are some pics of the work i am doing

    Leave a comment:


  • Utkarsh93
    replied
    Re: Fiero/FieroF2/FieroFx

    Guyz i am working on my fireo f2 to make it a cafe racer.
    Needed some assistance regarding the same.
    Just wanted to know , Is it possible to fit CBR 250R Swingarm in fiero f2 ?

    Leave a comment:


  • prd8r
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by gixxer_junkie_m View Post
    RTR unit is more robust, with whole lot stronger springs,other than that there's no difference in weight as such between the two.Now,talking about crank going out of balance,as you know, the clutch is fitted on the input shaft,so no issues as such.

    Fiero needs new clutch springs every clutch change,besides the 200 buck cheap chinese ones never last as long as the original japanese FCC ones the fieros came with,so definitely RTR clutch is better by far.
    There are many fieros running with RTR clutch from a long time now.They all are running with RTR clutch release button.That is with their input shafts drilled to fit the clutch release button and they are as reliable as stock RTR. But,there are only 2 bikes,including mine,which are running with our kinda modification and so far there are no issues what so ever. The mechanism used by TVS is quite uniqe for india. In the sense that as far as i know,no other bike runs with that kinda clutch release system. So i am sure there must be a good reason as to why TVS adopted that system.The RTR mechanism will definitely ensure longer life for the release bearing,compared to my modified clutch system,maybe with even more benefits.But,then i modified it to work, as it does on the unicorn,which is a honda.So how bad can it be?



    Yes, these HCM ones seem to wear off a bit faster with 180 mod. They are fine for 150. I didn't change them as often at that time. But now, after overboring, I have felt they can't keep up that well. They don't slip, but they tend to lose bite eventually. I tightened the springs and they seemed fine for a few thousand kms with the extra steel plate mod. But I have tried the RTR clutch on the apache 160s and 180s and they give a good 'grabby' feel. I'm sure they will last longer as they are designed for more power. The fiero ones wear out fast because of the extra power. So, the next time I change my plates, I will definitely be tempted for this RTR mod conversion. I have always ridden on half-clutch setting as I learned that on 2-stroke bikes growing up and that setting is the best for me


    Thanks really so much as always for the info Your confirmation about the weight of the assy is reassuring. If only there was a pic of the drilled section, but that's okay. I'll try and figure it out at the time. Or I will look into your modified set-up with unicorn donor parts. That seems advantageous because there is no drilling involved. Although, the rtr set-up you mentioned is also robust. And you're right, the Unicorn clutch by Honda is not bad at all. So, no worries there.
    Last edited by prd8r; 09-15-2017, 04:55 PM.

    Leave a comment:


  • gixxer_junkie_m
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by prd8r View Post
    I'm not saying this is a bad mod, but I just had a doubt that struck me just now. As you are the best person to bounce it off, do be patient with me Is the rtr clutch (entire unit) slightly heavier than the fiero clutch? Have you felt that the weight is more when you handled both assys during the removal and fitment? If it is, does it affect the balance of anything in any way, like say, the crank itself? Does the magnet on the other side have to be heavier too then? So that the balance is maintained? I hope I haven't confused you


    Otherwise, as you said, it seems perfect and necessary for a bumped-up fiero. The extra power needs a new robust clutch like the one you have and shown.


    So, over time, as you have ridden both versions of this mod for quite some time, which one do you recommend? As in, in terms of reliability and performance, are both similar?
    RTR unit is more robust, with whole lot stronger springs,other than that there's no difference in weight as such between the two.Now,talking about crank going out of balance,as you know, the clutch is fitted on the input shaft,so no issues as such.

    Fiero needs new clutch springs every clutch change,besides the 200 buck cheap chinese ones never last as long as the original japanese FCC ones the fieros came with,so definitely RTR clutch is better by far.
    There are many fieros running with RTR clutch from a long time now.They all are running with RTR clutch release button.That is with their input shafts drilled to fit the clutch release button and they are as reliable as stock RTR. But,there are only 2 bikes,including mine,which are running with our kinda modification and so far there are no issues what so ever. The mechanism used by TVS is quite uniqe for india. In the sense that as far as i know,no other bike runs with that kinda clutch release system. So i am sure there must be a good reason as to why TVS adopted that system.The RTR mechanism will definitely ensure longer life for the release bearing,compared to my modified clutch system,maybe with even more benefits.But,then i modified it to work, as it does on the unicorn,which is a honda.So how bad can it be?
    Last edited by gixxer_junkie_m; 09-14-2017, 08:48 PM.

    Leave a comment:


  • prd8r
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by gixxer_junkie_m View Post
    No i don't have that particular picture as i haven't gotten it done.But here's a couple just for reference,though they don't show the D shaped hole.

    The first is that of the rtr 160/180 and you can make out the female part of the clutch release button within the bearing at the center.This will be the one which will be partly inside the input shaft's D shaped hole.

    There are 2 ways this modification can be done.

    1. Modify the clutch release button assembly itself and make it work without drilling the D shaped hole into the input shaft.We did this first and it works perfectly fine too.

    2. Second method is to go to the nearest honda/hero showroom and buy unicorn's clutch release button and put it. Simple! That's what my bike is using right now.



    I'm not saying this is a bad mod, but I just had a doubt that struck me just now. As you are the best person to bounce it off, do be patient with me Is the rtr clutch (entire unit) slightly heavier than the fiero clutch? Have you felt that the weight is more when you handled both assys during the removal and fitment? If it is, does it affect the balance of anything in any way, like say, the crank itself? Does the magnet on the other side have to be heavier too then? So that the balance is maintained? I hope I haven't confused you


    Otherwise, as you said, it seems perfect and necessary for a bumped-up fiero. The extra power needs a new robust clutch like the one you have and shown.


    So, over time, as you have ridden both versions of this mod for quite some time, which one do you recommend? As in, in terms of reliability and performance, are both similar?

    Leave a comment:


  • gixxer_junkie_m
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by prd8r View Post
    Oh okay. So they increased the con rod throw but retained the same stroke as before.

    Do you have any pix of the rtr clutch conversion? If i remember correctly I had heard of the older rtrs having more spring rating too. The newer models have shorter length springs. Had seen a pic somewhere of that. It would be interesting to see how that D shaped hole looks like exactly. I thought it would be plug and play Is there another way you have tried without drilling?
    Would it help if I PMed you here?

    You're right about w50 oils. It felt necessary in 150 set-up itself. Especially when high compression is there, it will help with better heat dissipation too. Plus your oil cooler is there too. So I'm sure temps are within control
    No i don't have that particular picture as i haven't gotten it done.But here's a couple just for reference,though they don't show the D shaped hole.

    The first is that of the rtr 160/180 and you can make out the female part of the clutch release button within the bearing at the center.This will be the one which will be partly inside the input shaft's D shaped hole.

    There are 2 ways this modification can be done.

    1. Modify the clutch release button assembly itself and make it work without drilling the D shaped hole into the input shaft.We did this first and it works perfectly fine too.

    2. Second method is to go to the nearest honda/hero showroom and buy unicorn's clutch release button and put it. Simple! That's what my bike is using right now.
    Attached Files

    Leave a comment:


  • prd8r
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by gixxer_junkie_m View Post
    Tvs, as far as i know,has increased the cylinder height for the rtr 200,but as the stroke length is still the same,so they have increased the connecting rod length.Their aim was just that i guess.

    Yeah,RTR clutch can handle the power.For this you will have to change the entire clutch bell assembly,except the primary drive and ofcourse the clutch cover. Rtr from hyper edge series onwards have increased capacity oil pump ,yes,but that's only because they want to run thinner oil than earlier models,that's all.With thinner oils,engine life will go down drastically with our bikes. Mr Srinivas himself had recommended the use of w50 oils on our bikes,he was in TVS R&D,so he must know something.The least we can do is run them with w40 weight. Other than that,there's no need to change oil pump gear ,or any other gear for that matter.But you would have to drill a D shaped hole into the input shaft for the clutch release button.

    Oh okay. So they increased the con rod throw but retained the same stroke as before.

    Do you have any pix of the rtr clutch conversion? If i remember correctly I had heard of the older rtrs having more spring rating too. The newer models have shorter length springs. Had seen a pic somewhere of that. It would be interesting to see how that D shaped hole looks like exactly. I thought it would be plug and play Is there another way you have tried without drilling?
    Would it help if I PMed you here?

    You're right about w50 oils. It felt necessary in 150 set-up itself. Especially when high compression is there, it will help with better heat dissipation too. Plus your oil cooler is there too. So I'm sure temps are within control

    Leave a comment:


  • gixxer_junkie_m
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by prd8r View Post
    Oh, okay. So, the rtr 200 bore is not mere plug and play? I thought it would be a straight fit. Has the company put another con rod with the crank? The stroke is shown the same as on paper. Does the 200 piston skirt touch the con rod during operation? Those stock ports look superb Knowing you, I thought they were modded as well

    Bro, so the rtr clutch handles the extra power? I'm feeling like putting the rtr clutch on my fiero too now. Besides the clutch cover, I need the entire clutch basket assy right? Do I need idler gear and gear pump for oil too? Rtr gear pump sends more oil per rotation than fiero's. What else do I need to change? Kindly advise.

    Hehe. So abhi is riding his p220 hard I see. Judging by your emoticons, I'm sure he's fine But is he heading back to fieros again now? :P I'm sure you taunted him to get one again.
    Tvs, as far as i know,has increased the cylinder height for the rtr 200,but as the stroke length is still the same,so they have increased the connecting rod length.Their aim was just that i guess.

    Yeah,RTR clutch can handle the power.For this you will have to change the entire clutch bell assembly,except the primary drive and ofcourse the clutch cover. Rtr from hyper edge series onwards have increased capacity oil pump ,yes,but that's only because they want to run thinner oil than earlier models,that's all.With thinner oils,engine life will go down drastically with our bikes. Mr Srinivas himself had recommended the use of w50 oils on our bikes,he was in TVS R&D,so he must know something.The least we can do is run them with w40 weight. Other than that,there's no need to change oil pump gear ,or any other gear for that matter.But you would have to drill a D shaped hole into the input shaft for the clutch release button.

    Leave a comment:


  • prd8r
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by gixxer_junkie_m View Post
    @abhilashabhi12 he was involved in a head on collision with guess what? another p220! no one knows as to what or who he was eyeing That lead to him eyeing the modified fiero and from there it began. Him and @Ramankr77 who is another dude like us, started this interest.

    The sprockets are 14/39, which is from a while now.Yeah going back to 13/39 will mean some serious acceleration for sure.

    Still waiting to get my hands on himalayan jet and then to drill it further.I don't know whether the keihin carb is also a 29mm one or 30 ,either way, there's no issue in fitting our bs29 carb.Keihin carbs cost a bomb and their parts are costly too,so i don't think i will be taking that route for now.Besides i already have a spare bs29 with me. The intake manifold is that of the rtr 200.Carb jetting is almost complete ,let's see how long it takes.As the main jets are easily available at bajaj,we'd have to drill them ofcourse,so it should not be a problem.Besides jetting is never a quick, or an easy job when the set up in question isn't stock.The mikuni 29mm CV carb is good enough to make a Suzuki FX150R hit genuine 153 kmph,so this carb is more than enough for us ,i guess.

    The reason i didn't go for the 200 bore of rtr ,is because it will need crank to be opened in order to fit it's connecting rod ,but since my bike's crank has never been opened till date,i didn't want to do that now either.Besides the 180 bore is still good ,so i wanted to run the same with 4 valve head.But yeah,i want to run a higher compression than stock with the 200 bore,so i went for milling the head mod.
    The ports are stock. That's how the head was.

    Oh, okay. So, the rtr 200 bore is not mere plug and play? I thought it would be a straight fit. Has the company put another con rod with the crank? The stroke is shown the same as on paper. Does the 200 piston skirt touch the con rod during operation? Those stock ports look superb Knowing you, I thought they were modded as well

    Bro, so the rtr clutch handles the extra power? I'm feeling like putting the rtr clutch on my fiero too now. Besides the clutch cover, I need the entire clutch basket assy right? Do I need idler gear and gear pump for oil too? Rtr gear pump sends more oil per rotation than fiero's. What else do I need to change? Kindly advise.

    Hehe. So abhi is riding his p220 hard I see. Judging by your emoticons, I'm sure he's fine But is he heading back to fieros again now? :P I'm sure you taunted him to get one again.

    Leave a comment:


  • gixxer_junkie_m
    replied
    Re: Fiero/FieroF2/FieroFx

    Originally posted by prd8r View Post
    Oh cool. Nice pix again. Yes, I see what you mean by the valve train being smaller. They do look light. This will make your engine very rev-happy besides the advantage of over square block too. But you are right in planning for a 200 cc bore. This head set up is just dying to be matched with a 200 cc piston. And bcuz of your milled head, you will enjoy high comp too. So bcuz of that you won't feel the loss at initial.
    In fact, I think I can see in your pix, that you hsve polished the ports slightly too. Or was the carbon taken off freshly by the lathe operator?

    Have you retained original chain sprocket ratio with this engine set up? It might power wheelie in the second gear with original chain sprocket ratio. You might have retained your 15T GB sprocket I guess.

    So that Himalayan jet didn't work out? What are your thoughts on the keihin carb that TVS has plonked with the rtr 200? If its inlet matches our fiero/rtr air box hose and manifold, then you could use it without stress. Or is the bs29 you are using slightly better for torque in mids?

    Yes, there is no need for running in. I think you need to drag against a rtr 200 now and leave it behind :P Congrats on the FC test. You just gave new pife to your bike. Cheers. And where is Abhi? From what you said, he is still eyeing Fieros (stock or modded) even though he isn't riding one now :P Drop in a hi to him from my side. I miss the leg-pulling banter
    @abhilashabhi12 he was involved in a head on collision with guess what? another p220! no one knows as to what or who he was eyeing That lead to him eyeing the modified fiero and from there it began. Him and @Ramankr77 who is another dude like us, started this interest.

    The sprockets are 14/39, which is from a while now.Yeah going back to 13/39 will mean some serious acceleration for sure.

    Still waiting to get my hands on himalayan jet and then to drill it further.I don't know whether the keihin carb is also a 29mm one or 30 ,either way, there's no issue in fitting our bs29 carb.Keihin carbs cost a bomb and their parts are costly too,so i don't think i will be taking that route for now.Besides i already have a spare bs29 with me. The intake manifold is that of the rtr 200.Carb jetting is almost complete ,let's see how long it takes.As the main jets are easily available at bajaj,we'd have to drill them ofcourse,so it should not be a problem.Besides jetting is never a quick, or an easy job when the set up in question isn't stock.The mikuni 29mm CV carb is good enough to make a Suzuki FX150R hit genuine 153 kmph,so this carb is more than enough for us ,i guess.

    The reason i didn't go for the 200 bore of rtr ,is because it will need crank to be opened in order to fit it's connecting rod ,but since my bike's crank has never been opened till date,i didn't want to do that now either.Besides the 180 bore is still good ,so i wanted to run the same with 4 valve head.But yeah,i want to run a higher compression than stock with the 200 bore,so i went for milling the head mod.
    The ports are stock. That's how the head was.
    Last edited by gixxer_junkie_m; 09-05-2017, 08:45 PM.

    Leave a comment:

Working...
X