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Discussion Starter #1
I recently started building a CB350 racer. I built a CB160 racer four years ago. I have a many questions regarding the bike modifications. If anyone has experience with the mods, I'd sure like some input.
I plan to make the following modifications; T500 front brake. They seem affordable and increase the brake area. Do you use the T500 axle or is it custom built? Which front cable is used with the T500 hub? I assume it is teh T500 cable, but I am unsure if I will need the T500 brake handle.
I plan to replace the front forks with EX500 forks. Do you use the T500 axle, the ex500 axle or is it custom built?
I have teh KA slipper for teh cam chain tensioner. I sounds like some have ground the rivets on the slipper. Others have ground the chain channel in the cylinder. Which is prefered and what do I need to be aware of so I don't screw up one or the other.
I will be running a total loss system to start with. Which coils are most folks using? Do the stock coils fire at the same time? The CB160 has a 180 degree crank.
The first engine will be stock - for budget reasons. 1st over, cleaned up heads etc.
I'm sure I will have additional questions soon. Thanks.
 

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smart way to go. look for a cb450 brake. its a better brake strength wise. the t500 can be prone to cracking around the hub. coils do not fire at the same time. thats easy to tell. ive used jcwhiney coils, and bj has run vfr coils. clearance the head....not the rivets.

not sure what the ex uses for an axle.

who will you be racing with?
 

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Discussion Starter #3
I race with OMRRA in PDX. I have also raced AHRMA the last two years, once in UT and last year in PDX. Thanks for the info. I'll look for a 459 hub.
 

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i would open up the chain chase in the jug rather than mess with the rivets that hold it together.

not knowing on ex forks axle question.

coils depends on ignition. when i ran a dyna, i went with dyna coils.....now that i run a PVL i use PVL coils.

careful with the T500 brake......search for jam614's posts on the subject.....you might think twice after seeing his pix.

good luck!

tex
 

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WHOA!!

Ron
The CB450 is a fine brake, but don't rule out the T500 brake just yet...especially the one I'll be selling very shortly! Jack Cole gets first refusal, so if he passes, I'll be selling the entire front wheel assembly, minus the tire, very soon.

Joe
please don't tell people to simply NOT use the T500 brake, but instead just present the facts, and let them decide. There have certainly been cracked hubs, but careful gusseting of the T500 hub provides the needed strength, and of course the brake is lighweight and effective. Buff Harsh has used the T500 for years on the planet's fastest CB350 without incident. My brake was properly done by the go-to guy for this, Rick Breckon, the hub webbing reinforced, backing plate scooped, hub vented and polished.



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About $800 to make this Excel 18X2.15" aluminum rim and arced T500 brake combo w/2520V race compound. All this (minus the tire) assembled, blueprinted and ready to go for the low low price of only $500!

Jack?

OOPS! I forgot, Jack already bought an old Honda brake.
 

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quote:Originally posted by texmawby


...careful with the T500 brake......search for jam614's posts on the subject.....you might think twice after seeing his pix.

good luck!

tex
O.K. I'll buy that..."careful". In other words, make sure the brake has been made fit for racing.
 

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Eric, Even though I have had a bad experience with my ungusseted T500 brake, I am interested as it with be an easy swap to get my 350 race-worthy. Would you take $400? Maybe some of the Summit bound racer can bring it north, or better yet maybe it would be a good excuse to head south and race.
Thanks,
Jeff
[email protected]
 

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omg

the t500 is fine. but you absolutely do have to pay attention to it. oh....and you have to reinforce it. oh....and it can crack an collapse.....maybe....oh...and before you have the wheel built, send the entire thing to craig breckon, in georgia, or where ever. so it can be made structurally sound. and welded, and lightened....then, have it shipped back to the west coast, where vintage brake will build the wheel, then turn and true it etc.....just ship the freaking thing all over the country....why not?

i have never heard of any of these issues plaguing the cb450 brake. hence my comment.

you want to use a brake thats known to have issues? well.....go for it. some people have them and love them (honestly). others do not. but the fact that its happened to more than a few people, says to me....steer clear. btw, scott wall ran his with no problems at all. bucky runs his fine too. given the choice, if you can, steer clear. if one falls in your lap, for cheap money....absolutely go for it. just be sure to keep an eye on it.

and you dont have the resources of a guy like buff.

thats my advice. and im stickin to it!!

for me, like was once uttered...."once you go buffalo, no never go back!"

and like tex said....best not to carve those rivets off. a failure of the tensioner could result in catastrophic engine damage.
 

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Discussion Starter #9
Eric,
Thanks much for the offer. That is a bit out of my budget right now. It looks like a great setup. To get the bike ready for the beginning of the season, I'm aon a bit of a budget. I hope to have a stout engine (#2) be the summer. I still have some mods to make on my 160's as well, so I am working on making the CB350 a true budget racer to start with. I appreciate the information and I am very interested in seeing photos of the gusseting. Thanks! Good luck this year.

Ron Bloker
OMRRA #427
 

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eric,

i comment based on my own level of attention and detail. if i had a T500 brake and it worked and stopped me, i doubt i would ever check it through the season(s).....i was just throwing it out there to any guys/gals that are lazy and complacent like myself.

besides.....looks like jeff wants it!

tex

p.s. - jeff, pickup is at summit point in april! bring the family, pets, and the tents!
 

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You seem emotionally invested in this Joe...but, I'd rather not tell anyone what to do or not to do. I don't personally care if everyone uses either a GT750 or CB450 brake exclusively. I'm happy to keep this front assbly to use in AHRMA Sptsmn350, but I'm going to list it because it's an extravagance, and I can recycle the funds into other areas of the bike.

I ran over to the shop last night, popped the backing plate off and snapped a few 'unretouched' shots of the brake in its natural, uncleaned state. ;)

Here's the entire assembly, ready to mount on a Honda front end (except the tire), complete w/lever, cable, etc. I'll include a CB550/750, etc axle if needed. Will obviously need a different brake stay mounting hole for a different bike:


By mercer854 at 2011-01-31



By mercer854 at 2011-01-31


By mercer854 at 2011-01-31

Like new linings...obviously I wasn't working the brakes hard enough:


By mercer854 at 2011-01-31


backing plate, with scoop:


By mercer854 at 2011-01-31
 

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Haha . . . in the immortal words of Frank C., brakes only slow you down!!
 

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quote:Originally posted by Zooke581

So, Eric, anything in my shop you would trade for?

Eric
Damn, Zooke, you might be a little too late; but, I would have swapped it for a 2011 ride on one of your fast 2 strokes. ;)

Speaking of which, did you see Laf Young's wicked GT550 for sale?

 

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Think I saw it in an AHRMA add. Quite an impressive ride. Not much for a leading axel but I guess he got the figures right.
 

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Ron, if you need help (or want to help us, lmfao), we are building a couple too, and are in Portland.
 

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Looks like my LWSV bike will be race-worthy for Vintage Celebration if someone would kindly pick this up at Summit and bring back to New England. Vile? Wolf? Aaron? I may be able to go myself . Does WERA have 200GP class or similar?
 

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jeff,

250GP runs with 500GP and V1.

bump up to 350GP which runs with V2.

bring your NEMM bike and race that in mini gp too.

3 races, 1 day....party!

tex
 

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Discussion Starter #19
mlinder,

I appreciate the offer. I'd be curious to see your projects. I think I have a pretty good idea of what I need to get done. I still need to get my cylinders and slugs to the machinst. Once that's done, I can start assembling the engine. I also need to do a bit of shopping. I missed out on a CB450 hub on eBay, but I think I'm going to try the T500 hub. My brother is a fabricator and with the photos of the gusset welds on the hub (Thanks Eric!) he should have no problems. The frame should be about 90% by Friday. I'm still not sure what I am going to do for ignition, I'm leaving that for last to see what is still in the budget. I will likely build the glass catch pan and maybe the seat. I still have to build a mold for a new seat for the 160. My aluminum seat keeps cracking. Stock contols on aftermarket clip-ons and my spare Torazzi's from my race box. Now if you could float me more time and $$ beofre April, that would be GREAT!
Side Question - Are you going to the One Motorcycle Show on Saturday? I should make it, albiet late. I have military training this weekend so I'll be going afterward. Thanks again!

Ron Bloker
OMRRA #427
 

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Discussion Starter #20
mlinder
Let me know if there is anything you need - I have some spares etc. See you on the track!

Ron
 
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