who uses 62t cylinders?

[chrisdoc0608]

i just read an old artical on pwctoday and some of the guys were running 61x bottom with 62t top.... i have the clyinder and case and am debating on which setup to go with for both flatwater and surf. also will the sport port templates work on both 61x 701 and 62t 701?

[WaveDemon]

that is called a frankenstein. I'm running one. I like it alot. Mine was ported by WCF. I ported the case myself and I run a 48 powerbomb carb.

[chrisdoc0608]

did they lower the exhaust ports when they ported it?

[Matt_E]

It is not possible to lower the exhaust ports (for cheaper than getting an X Cylinder).

I have a Frankenstein with home-ported cases and cylinder, intake manifold, and 48 Full Spectrum.
Very nice motor.
Highly recommended, especially on a budget.

[chrisdoc0608]

so next question is the 62t cylinder/ 61x case better than 61x/61x?

[Matt_E]

Considering that most 62T topends can be had cheaper than 61X topends, and also considering that most 62T/64X topends have more displacement (or potential for cheap increase in displacement), I'd say so!

[WaveDemon]

it can be. it's a cheap way to big bore. I'm up to 86mm, 790±cc

[Frosty]

I'm running a full 62t motor in one ski now... it's got tons of power, trouble is, the cylinder is race ported, and coupled with the dry pipe doesn't seem to have the low end hit I get out of my T cased/X cylinder ported motor. It's got sick mid range acceleration and top end though.

[Jet-Pilot]

I’m running a 61x case/62T cyl. It was built by legdrag so I don’t know what they did to it to make it work. The motor has carbon reeds and a milled head and it runs great with massive lowend. Porting is stock and my impeller is stock pitch but steel. Riding at WOT I slowly passed my pops STX-R which was doing 43 mph. So needless to say you don’t lose any power. I hear the 62T cyl is stronger.

[marz831]

Is there an advantage in using x cases versus t cases when using the t cylinder?

[Jet-Pilot]

I would guess that most people if they had the option would run a 62T case with duel carbs. If you wanted to run a good low-end setup get the 61x case with a single carb. The 62T case will add a few mph but is not as forgiving. The 61x case is very forgiving and a 62T cylinder is very meaty put them together and you have a very strong motor.

[WaveDemon]

some people want single carbs.

[Matt_E]

How is the X case "forgiving"? :dunno:

Most people that run a 62T/64X cylinder run it because it's a cheap alternative to a big bore 61X with very comparable power (if done right).
Those folks obviously can't or don't want to afford the 61X big bore, so chances are, they won't want to afford the hefty T cases, either.
It's a money thing.
Additionally, speaking of money....T cases just about require dual carbs (or expensive single kits). X cases run single out of the box. Again, less money.
T cases are better, hands down, but if you're on a budget, X cases can be had cheap.

[Mouthfulloflake]

T cylinders suck, the EX port timing all wrong.

:fingersx:

[chrisdoc0608]

lol

[kevbo]

A 62T cyl will make good power without porting as long as a good pipe is used. It is critical that the pump load is low and compression is moderately high for best throttle response. Also make sure to use a long chamber/limited pipe. Dont worry about which case you end up with, even 650 cases will run well enough for a play boat.

[Matt_E]

A 62T cyl will make good power without porting as long as a good pipe is used. It is critical that the pump load is low and compression is moderately high for best throttle response. Also make sure to use a long chamber/limited pipe. Dont worry about which case you end up with, even 650 cases will run well enough for a play boat.

Yup. I run about 170psi, limited B-pipe, lightened flywheel, and 10/18 impeller. Freakin' rips.

[chrisdoc0608]

how would a coffman pipe do until i get a b pipe

[Matt_E]

Better than stock.

[Mouthfulloflake]

good enough that you will wait on a REALLY cheap B pipe.

Ive ridden 2 boats with 701 motors and B pipes,( compared to my 650 + coffmans pipe powered boat) that do not have the same snap, and barely have better top speed.

dont ride the hype.



how would a coffman pipe do until i get a b pipe

[Matt_E]

I'd get a good drypipe for it.

[njfl]

Regarding the 62T cylinder, abut five years ago, I bought one of those Riva cylinders out of their catalog thinking it would be great. It was OK. After I met Chuckie at Team Scream, he told me that he could do magic on that cylinder. He did. It was an impressive hard pull.

I think there is a misconception when people say bottom end. I've ridden a lot of 61X motors made by builders that hit like a rock for an instant and then are flat and fall on their faces after that. I think we really want bottom to mid-range. The 62T that Chuckie built me does that.

[Jet-Pilot]

Whats the difference when running the 62T cyl in a 701 vs 760? Did the 760 just have a longer stroke or more bore? It has to be the stroke otherwize wouldnt there be 2 62T's with different bores?

One thing I like about the 62T is because it has so much meat to it you can get alot of rebuilds out of it.

[Matt_E]

650, 701, and 760 all have the same stroke.
650 has 77mm bore, 701 has 81mm bore, 760 has 84mm bore.
650 can be safely bored to 81, 701 can be safely bored to 84, and 760 can be safely bored to 85 (quoting builders here).

The actual 62T cylinder is a 701. A 760 is a 64X cylinder. The casting between the two is the same, the sleeves are a bit different.

[chrisdoc0608]

I'd get a good drypipe for it.

whats the advantage of the dry pipe over something like a B pipe. it just seams that everyone and their brother say "get a b pipe"

[Matt_E]

That's because B-Pipes are simple, fool-proof, and the longest running band-wagon in site history. :biggthumpup:

Don't get me wrong, B-Pipes really are great.
But so are some drypipes. They make very good power and have decent bottom end, especially with a bit compression and a lighter flywheel, or even water injection.
But, they are a bit harder to set up, can be harder to maintain if the setup wasn't done right, and often require higher octane gas to be run.

[chrisdoc0608]

cool, thanks for the info.... now to decide between the 62t or the 61x i have :scratchchin:

[Idok]

I would guess that most people if they had the option would run a 62T case with duel carbs. If you wanted to run a good low-end setup get the 61x case with a single carb. The 62T case will add a few mph but is not as forgiving. The 61x case is very forgiving and a 62T cylinder is very meaty put them together and you have a very strong motor.


did you just make this up?

[Mouthfulloflake]

as far as I can tell, the 62T cylinder IS beefier than a 61x..

no idea about the61x cases being "forgiving" though.

cheap yes, forgiving? hmmmmm



did you just make this up?

[Jet-Pilot]

did you just make this up?

No, Check PM.

[bad93blaster]

just to let you guys know group k is working 62t cylinders bored out to 89mm

[Mouthfulloflake]

have you got more info on that?

or did you hear it from a guy that knows a guy, whos sister's uncle's friend had a 89mm engine?



just to let you guys know group k is working 62t cylinders bored out to 89mm

[chrisdoc0608]

have you got more info on that?

or did you hear it from a guy that knows a guy, whos sister's uncle's friend had a 89mm engine?



:lmao::lmao::lmao: hahahahaah

[bad93blaster]

have you got more info on that?

or did you hear it from a guy that knows a guy, whos sister's uncle's friend had a 89mm engine?

he had one at havasu

http://www.pwctoday.com/showthread.php?t=144207

[Mouthfulloflake]

ahh, I see.

custom stuff though.

[

QUOTE=bad93blaster;368098]he had one at havasu

http://www.pwctoday.com/showthread.php?t=144207[/QUOTE]

[yamahammer]

word of warning on 64x 760 cylinders- sleeves are thin from the get go and all the used ones ive got came complete with cracked sleeves- no biggie to resleeve for cheap and use, but look real good before you buy

on pipes for durability there is a reason everyone and their dog runs a b-pipe they are the toughest around thats old news- ive killed a protec mach 2, riva red pipe, blaster1 bmod pipe, and latest was an r&d drypipe- after running the drypipe there was no going back to the sj bpipe- r&d made that much more power- bonzai bob is beefing up my drypipe this winter to hopefully make it live:bigok:

[DCRocks]

After reading this, I am wondering if it would be better to stick with a 61x/61x setup or go with a 62tcase/61xcylinder. I want to stick with a single carb, and all the single carb intakes for the 62t seem to cost a fortune.

I could carer less about top end speed, as I want a surf ski that hits in the low and mid range.

I already have a factory B limited pipe.

Should I save my money and not buy a 62t case, and buy a 62t cylinder instead?

Will the 62t cylinder bolt right up to my stock 61x case?

[Matt_E]

The cases need to be bored up slightly to accept the larger sleeves.

[WaveDemon]

if you have an all 61x set up and want to stay single carb then stay with a 61x case. it'll cost $500 in just the case and manifold to upgrade to 62t cases.

[DCRocks]

The cases need to be bored up slightly to accept the larger sleeves.

Do you mean the larger sleaves of the 61x cylinder?

if you have an all 61x set up and want to stay single carb then stay with a 61x case. it'll cost $500 in just the case and manifold to upgrade to 62t cases.

I don't mind spending the money, I just wondered if I could get more bang for my buck, if I put the money into some other aspect of the engine, than going from 61x case and manifold, to the 62t case and manifold.

From what I saw, it would cost almost as much to bore out my 61x cylinder, as it would to get a 62t case and manifold, and if I could bolt up my current 61x cylinder, I can pickup a 62t case and manifold from a friend that has several lying around for pretty cheep.

The only thing I am certain of, is I want to stay with a single carb, and my factory B limited pipe, everything else is up for change, which is one of the reasons the 62tcylinder/61x case got my attention..

[Matt_E]

Do you mean the larger sleaves of the 61x cylinder?


No, I was responding to your question as to what needs to be done for the X cases to accept T cylinders.


From what I saw, it would cost almost as much to bore out my 61x cylinder, as it would to get a 62t case and manifold

It would cost you 60-100 bucks to bore out your cylinder, and it would cost you $300-$700 to get T cases and Manifold.
Granted, throw in new pistons, and the bore job ends up being $300, but you get the point.



The only thing I am certain of, is I want to stay with a single carb, and my factory B limited pipe, everything else is up for change, which is one of the reasons the 62tcylinder/61x case got my attention..
There is only really good reason why the T cyl/x case engine is good: It's cheap.
More power can be had with T cases and X cylinder.