Jump to content

Recommended Posts

Posted

im not sure where you buy a $1500 crank at but that is more than double over retail! unless its a billet crank wich is only around $1200. this guy asked for an opinion and i gave one to him dont bust my ballz because i gave my opinion. he never mentioned that he already had a hot rods crank (stock stroke) he obviously has a few bucks to spend because not everyone has the cash around to build a 4mil cub like he was asking he would still have to buy the 4 mil crank.

 

so this is my opinion

7mil crank forged

7mil cub cylinders

65 bore

and trench the cases for the stroke.

 

your opinion

4mil crank forged

4mil cub cyinders

68 bore

 

i still see him buying new pistons, still has to buy a crank 7 should be the same price as a 4, has to buy the cylinder stock 4 and 7 are all the same price, and trenching is only 150 so i see him spening a whole whopping 150 buck more and and would have in my opinion a better motor.

 

once again all IMHO

  • Replies 41
  • Created
  • Last Reply

Top Posters In This Topic

Posted

im not sure where you buy a $1500 crank at but that is more than double over retail! unless its a billet crank wich is only around $1200. this guy asked for an opinion and i gave one to him dont bust my ballz because i gave my opinion. he never mentioned that he already had a hot rods crank (stock stroke) he obviously has a few bucks to spend because not everyone has the cash around to build a 4mil cub like he was asking he would still have to buy the 4 mil crank.

 

so this is my opinion

7mil crank forged

7mil cub cylinders

65 bore

and trench the cases for the stroke.

 

your opinion

4mil crank forged

4mil cub cyinders

68 bore

 

i still see him buying new pistons, still has to buy a crank 7 should be the same price as a 4, has to buy the cylinder stock 4 and 7 are all the same price, and trenching is only 150 so i see him spening a whole whopping 150 buck more and and would have in my opinion a better motor.

 

once again all IMHO

 

actually a 7mil crank is nowhere near the price of a 4mil crank they are the same as a 10mil crank...

 

and if you read better the 1500 is for the crank trenching , the crank , and a cleanup port... you still need the pistons...

 

the 4mill was 1400 and was everything...

Posted

LOL Oooh... Burn!

 

I rode a cub once and had one of my own a couple months later. I think I got damn near everything for ol blue in about a month or two. Never really totaled everything up though. I imagine for EVERYTHING I got changing over to my cub it was up over 2k. Swinger, roundhouse carrier, intakes, carbs, pipes, cubs, crank, head, domes, reeds... it all adds up quick.

 

Damn two-strokes.

 

...and I'm doing it all over again with my 06! What the hell was I thinking getting that thing? LOL!

Posted

...and I'm doing it all over again with my 06! What the hell was I thinking getting that thing? LOL!

 

Because...you wanted that new bike smell and BNG (Bold New Graphics...LOL )

Posted

 

Damn two-strokes.

 

...and I'm doing it all over again with my 06! What the hell was I thinking getting that thing? LOL!

 

Jared promise you wont make it look like mine.lol

Glad to see you with a new shiny one.It makes all the new polished parts look good.

Posted

no one said a drag motor wont hit over 100hp but a 421 cub on gas isnt going to make 100hp wothout a fat port job... just runnin a cleanup port on a cub isnt going to get you there...why the fuk spend the money on a 7mm crank to get a smaller motor when you can get a 4mm cub for close to the same amount and have better top end...

 

for a 7mm your going to spend around 1500 just for the crank the cases to be trenched ,a crank and a port job..and you still need pistons

 

or you can get a 4mm cub and spend 1400 and have better topend and still be abe to dune it...and thats for everything

what carbs are you running? your bike is a fukin gas hog! you shouldnt be out of gas going that short of a distance! get your self an ims tank if thats the case!

it is a gas hog,but i dune it on saturday night,cuz 1 of my buddies has a dirt bike w no lights,and i didnt want to take my truck to the hill at night,so i let him ride my ltr450,i dont dune my shee often,and besides just got my over ride,and side cover from orange crush,just waiting for my lock up.by the way i got the pjs 34.saying that i dont want a bigger tank.by the way my banshe kick some serious ass on saturday.i fucking love the power band.and to stick w the topic i was hauling ass on in while on the road to olds,and the only way to done it properly is way on top,which in turn gets a little scary,i have no front brakes so i almost runed into a tree,its dark out there.so my solution to a 421 cub,and dunning was getting a 4stroke dunner. :banghead: :banghead: :banghead: :banghead: :beer:

Posted

a cheaper route would have been better lights and maybe some new front brakes lol :beer:

 

where did you endup camping? we where down in the washes, but i think next time we are going to camp somewhere else i cant fuking stand how at night the dust sits right there in the washes.

Posted

a cheaper route would have been better lights and maybe some new front brakes lol :beer:

 

where did you endup camping? we where down in the washes, but i think next time we are going to camp somewhere else i cant fuking stand how at night the dust sits right there in the washes.

by the washes,and yes its dusty than a mother fucker.but our group is almost always behind the vendors row.by the way i went to portman ville.had like 3 pitchers[bud light all the way,you know us misicants,and the bud light thing]ho yeah thats mines,what happen,i was buzzing,and i wasnt concentreting,and i said mines.if you dont know what iam talking about listen to the geoge lopez cd. :beer: :beer: :beer:

Posted

by the washes,and yes its dusty than a mother fucker.but our group is almost always behind the vendors row.by the way i went to portman ville.had like 3 pitchers[bud light all the way,you know us misicants,and the bud light thing]ho yeah thats mines,what happen,i was buzzing,and i wasnt concentreting,and i said mines.if you dont know what iam talking about listen to the geoge lopez cd. :beer: :beer: :beer:

we have been saying the last 2 trips we are goingout there but the last 2 trip we hav ahd shit break on us lol

Posted

I'm sorry i did not see the KIT part of your post. It is hard to think any company can package a kit like that together for that cheap. however, i still stand behind the 7mm/65!!!

Posted

I'm sorry i did not see the KIT part of your post. It is hard to think any company can package a kit like that together for that cheap. however, i still stand behind the 7mm/65!!!

 

 

Does anyone hve dyno charts of similarly built 4mm and 7mm motors? I doubt it, but...

 

Is the longer stroke adds more power at the top correct? I currious why you think a 7mm is a better dune bike.

Posted

4 mil adds more torque and bottom, a few ponies overall...

 

I have a dyno chart from my 421 cub, on race gas, with stock carbs and T5 pipes, bone stock 10 year old ignition....

 

I've yet to dyno it on my RDZ/Shearer inframes, updated ignition and 35PWks (going to alky now) but I still have the dyno chart if you're interested...

Posted

a 4mil to a 7mil both on the same jugs and mods the 7mil will have more topend.. however the 4mil cub versus the 7mil noncub with smaller pistons.. is just a waste of money your spending almost doulbe for a 7mil crank to have a smaller motor... when you can get a 4mil cub and have a monster that is much more duner friendly at less of a cost....

 

and the 1500 i posted was incorrect casue i didnt add the 7mil crank cost i did just over a 4mil which isnt nearly as much as they cost... also i didnt include an accurate amount for the porting to change the port timings for the 7mil... so you can actually add more for that as well..

 

where the cub comes already ported for that stroke crank... only thing that can be done is a clean up port for the casting flaws.. and 99% of builders clean them up for free when you order the motor from them..

Posted

4 mil adds more torque and bottom, a few ponies overall...

 

I have a dyno chart from my 421 cub, on race gas, with stock carbs and T5 pipes, bone stock 10 year old ignition....

 

I've yet to dyno it on my RDZ/Shearer inframes, updated ignition and 35PWks (going to alky now) but I still have the dyno chart if you're interested...

 

 

 

I would like to see that. I'm not totally sold either way, but the price difference isn't that big of a deal. I just don't want to get finished and say to myself "damn I should have done this"

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×
×
  • Create New...