Cerberus
Cerberus the aardvark, not the hell-hound!!
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- User ID
- 11523
- Joined
- Jan 20, 2020
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- 292
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- Location
- Florida (tampa area)
tl;dr---- Are farmertec big-bores a comparable quality to their 54mm kits? Using Cabers of course, and ready to work crankcase appropriately....but if f.tec's 56mm isn't comparable quality to 54mm I'd be eager for reco's, maybe the duke's (don't want to go all hyway quality, as I'm porting/grinding almost every inch besides the plating ) What, in a word/statement, is THE BEST modification(s)/modification-type one can make on their saw to accomodate the 56mm jug & 99cc displacement?)
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So I've got a handful of Q's I've been unable to glean answers from google & forum threads yet so figured to post Will do bullet-point / line-items so people can answer what they know, if so willing ;D
#1 - Farmertec 56mm kits: are they comparable to the 54mm f.tec kits? If not, why/how? I ask because, while the f.tec kits need a lot of "casting imperfection remediation", I've found them to be otherwise-OK and would get one if I were going for a 54mm right now, but uncertain if I can just assume the 56mm kit is as-good(LOL, "as bad"?) as their 54mm kits....I don't mind working on it, just care Re plating & true-ness, and no f.tec jug has failed me there yet!!
#2 - IF f.tec big-bores are a no-go, how about The Duke's? Or do I gotta go hyway+? Don't get me wrong I love hyway, have a hyway popup kit in my better 660 (for now ) but I could've made a comparable jug from a $25 f.tec if I knew then what I know now (IE re altering bands & bases w/o lathes)
#3 - This'll put the saw at ~99cc,but - w/o crankcase modification - I suspect it'll create an "imbalance" among top&bottom halves of engine.... I know I have a thread that touches on this but **anything** on "How to work a 660 in-preparation / working-it-for a big bore kit?" would be extremely appreciated!!!
#4 - Port timing: I guess I would've assumed they'd just put the same darn ports as a 54mm, maybe enlarged like 4% (ie to proportionally enlarge in-proportion to the new larger jug), but keep hearing "You can freeport" which implies ports are NOT in same places as 54mm jugs) So yeah from watching for freeport (a usual f.tec 54mm jug leaves me like 60thou space on skirt before freeport )
So yeah that's the stuff I'm thinking of (OH by the way, these "Magnum" *44's/*66's are big bore right, that's what the "magnum" denotation means?), am pretty set on trying one of these big-bores and ready to order as soon as I find whether there's a lower-priced unit that's better than the f.tec ones that eccppautoparts sells on ebay (where I got my 54mm kit I'm very happy with!), for like $35 ($50 w/ your Cabers), otehrwise I think it's up to about $70 for the Duke's and >$100 for Hyway....kinda wish I could get a deal for buying hyway jug && f.tec 56mm slug!!)
Thanks a ton for any insight, am perusing threads and learning a ton (have watched all relevant youtubes on big-bores I could find!) but placing order tomorrow earlier in day at the latest so hoping to avoid a last-sec mistake in brand.....will go w/ the f.tec IF confirmed they're comparable to f.tec 54mm's, otherwise I believe I'll go w/ Duke (will call him 1st thing to see if his coatings' quality isn't top-notch, IMO the plating quality, and obviously the jug being true to the base-plate, are crtitical the jug is useless w/o them...)
PS-- do you really need to bore-out the (4) cyilnder-bolt holes to fit these on 660 crankcases? Do you need to mod the case more-than simply enlarging opening for piston so it doesn't scrape/bump when entering 54mm crankcase
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
So I've got a handful of Q's I've been unable to glean answers from google & forum threads yet so figured to post Will do bullet-point / line-items so people can answer what they know, if so willing ;D
#1 - Farmertec 56mm kits: are they comparable to the 54mm f.tec kits? If not, why/how? I ask because, while the f.tec kits need a lot of "casting imperfection remediation", I've found them to be otherwise-OK and would get one if I were going for a 54mm right now, but uncertain if I can just assume the 56mm kit is as-good(LOL, "as bad"?) as their 54mm kits....I don't mind working on it, just care Re plating & true-ness, and no f.tec jug has failed me there yet!!
#2 - IF f.tec big-bores are a no-go, how about The Duke's? Or do I gotta go hyway+? Don't get me wrong I love hyway, have a hyway popup kit in my better 660 (for now ) but I could've made a comparable jug from a $25 f.tec if I knew then what I know now (IE re altering bands & bases w/o lathes)
#3 - This'll put the saw at ~99cc,but - w/o crankcase modification - I suspect it'll create an "imbalance" among top&bottom halves of engine.... I know I have a thread that touches on this but **anything** on "How to work a 660 in-preparation / working-it-for a big bore kit?" would be extremely appreciated!!!
#4 - Port timing: I guess I would've assumed they'd just put the same darn ports as a 54mm, maybe enlarged like 4% (ie to proportionally enlarge in-proportion to the new larger jug), but keep hearing "You can freeport" which implies ports are NOT in same places as 54mm jugs) So yeah from watching for freeport (a usual f.tec 54mm jug leaves me like 60thou space on skirt before freeport )
So yeah that's the stuff I'm thinking of (OH by the way, these "Magnum" *44's/*66's are big bore right, that's what the "magnum" denotation means?), am pretty set on trying one of these big-bores and ready to order as soon as I find whether there's a lower-priced unit that's better than the f.tec ones that eccppautoparts sells on ebay (where I got my 54mm kit I'm very happy with!), for like $35 ($50 w/ your Cabers), otehrwise I think it's up to about $70 for the Duke's and >$100 for Hyway....kinda wish I could get a deal for buying hyway jug && f.tec 56mm slug!!)
Thanks a ton for any insight, am perusing threads and learning a ton (have watched all relevant youtubes on big-bores I could find!) but placing order tomorrow earlier in day at the latest so hoping to avoid a last-sec mistake in brand.....will go w/ the f.tec IF confirmed they're comparable to f.tec 54mm's, otherwise I believe I'll go w/ Duke (will call him 1st thing to see if his coatings' quality isn't top-notch, IMO the plating quality, and obviously the jug being true to the base-plate, are crtitical the jug is useless w/o them...)
PS-- do you really need to bore-out the (4) cyilnder-bolt holes to fit these on 660 crankcases? Do you need to mod the case more-than simply enlarging opening for piston so it doesn't scrape/bump when entering 54mm crankcase