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Author Topic: 94x64  (Read 15062 times)
Project_X
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Posts: 81


« on: February 08, 2008, 06:21:56 am »

I'm just throwing an idea around for a street mouse motor, what you guys think?Doable?My motor has a 69mm crank stock.It will be my daily, also any idea what kind of power, maybe 100-110hp?

94mm pistons
64mm crank (from DMS maybe, or other?)
FK8 cam with 1.4:1 rockers
10:1 compression
044 Super Mag CNC Round Port Heads w/40 x 35.5mm S/S valves, CNC Porting, Dual Super Rev Springs, Chromoly Retainers, and Hardened Valve Locks. 94mm Bore
Match Ported Big Beef Manifolds for Round Port CNC 044 heads
48IDA's
1 5/8 merged header
Pertronix full ignition
AS41 case
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Neil Davies
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« Reply #1 on: February 08, 2008, 11:22:31 am »

You'd be better going for a 74mm crank - I'm guessing you're going for the short crank to get the revs up. 74's rev as well as anything.
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wolfswest
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Posts: 1235



« Reply #2 on: February 08, 2008, 21:42:46 pm »

I'm just throwing an idea around for a street mouse motor, what you guys think?Doable?My motor has a 69mm crank stock.It will be my daily, also any idea what kind of power, maybe 100-110hp?

94mm pistons
64mm crank (from DMS maybe, or other?)
FK8 cam with 1.4:1 rockers
10:1 compression
044 Super Mag CNC Round Port Heads w/40 x 35.5mm S/S valves, CNC Porting, Dual Super Rev Springs, Chromoly Retainers, and Hardened Valve Locks. 94mm Bore
Match Ported Big Beef Manifolds for Round Port CNC 044 heads
48IDA's
1 5/8 merged header
Pertronix full ignition
AS41 case

how do you plan on getting to 10:1 with 64 mm crank?

I think that he means 69mm and that 64mm is a mistake...

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Project_X
Jr. Member
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Posts: 81


« Reply #3 on: February 08, 2008, 22:23:49 pm »

I'm just throwing an idea around for a street mouse motor, what you guys think?Doable?My motor has a 69mm crank stock.It will be my daily, also any idea what kind of power, maybe 100-110hp?

94mm pistons
64mm crank (from DMS maybe, or other?)
FK8 cam with 1.4:1 rockers
10:1 compression
044 Super Mag CNC Round Port Heads w/40 x 35.5mm S/S valves, CNC Porting, Dual Super Rev Springs, Chromoly Retainers, and Hardened Valve Locks. 94mm Bore
Match Ported Big Beef Manifolds for Round Port CNC 044 heads
48IDA's
1 5/8 merged header
Pertronix full ignition
AS41 case

how do you plan on getting to 10:1 with 64 mm crank?

I think that he means 69mm and that 64mm is a mistake...



No actually I meant a 64 , I didnt know 10:1 comp wasnt doable. so I guess 69 or 74 will be the idea.I was just trying to think of a high reving small CC engine similar to the 1603 in the other thread.
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richie
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« Reply #4 on: February 08, 2008, 22:30:51 pm »

Jeff[ugly duckling] did one a few years back now,64 stroke with chevy rod journals if I remember correctly,wanted to rev like a 2 stroke,it was a lot of work[heads particularly;-)  ]  Maybe he will chime in a share a few details?

cheers richie,uk
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wolfswest
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« Reply #5 on: February 08, 2008, 22:46:59 pm »

mmm, interesting, I never heard of a 64mm crank, is it a standard vw crank?  Huh  Huh  used in older 1200 engines I guess then...?
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richie
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« Reply #6 on: February 09, 2008, 00:19:15 am »

mmm, interesting, I never heard of a 64mm crank, is it a standard vw crank?  Huh  Huh  used in older 1200 engines I guess then...?

it was destroked 69mm when ground to chevy journals

cheers richie
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Good parts might be expensive but good advice is priceless Wink
Torben Alstrup
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Posts: 716


« Reply #7 on: February 09, 2008, 01:13:58 am »

Many years ago I knew a german guy that had a type 4 66 X 103 mm. with a hefty cam of german origin. It wasnt worth much below 3500 and at about 4700 it almost "exploded" in power. Reved clean to about 8400, and was really mean between 5500 and 7600 rpm.
So it liked short gears. It had 48 IDF carbs on it and a very nice looking  homemade header/muffler. It was a blast to drive, but a bit too  hysterical for daily driving IMHO.
T
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Martin
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Cash Converter....


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« Reply #8 on: February 09, 2008, 02:13:45 am »

keep thinking about a few dream motors.......3 ltr N/a touque monster... then theres the real short stroke (50mm x 104mm) motor with pnumatic valve springs, and top ported heads, exream RPM but plenty of hp.........

 one day when I have a few years to wast....




dream on martin, dream on.............
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Martin

9 sec street car, its just simply not fast enough

Swing axle to CV convertion is on the website now

www.taylormachine.co.uk

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Project_X
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Posts: 81


« Reply #9 on: February 09, 2008, 05:53:02 am »

64mm is a stock 40hp crank I was told.I was thinking if I got one of them cheap, send it out to get counter weighted, then buy some cheap pistons off thesamba.What kind of compression would you guys run, since apparently I cant run 10:1 cr (which I didnt know) with a 64mm crank?Maybe 8.5:1?
Also yes Im going with a 64 to get the revs up, and Id go with a 74, but a 64 seems cooler IMO lol
Would this motor make any power before 4000rpms to move out its own way at all with a fk8 cam or would I want a crank that makes some torque at lower RPMS?
Also what all needs to be dont to a 1600DP to put a 64mm crank in it, I know the case needs to be bored out for 94's though.

Another idea would be 87x64, LOL I want a daily motor good to rev to 8k, if it lasts 50k thats fine, least I will have a learning experience.
« Last Edit: February 09, 2008, 05:56:07 am by Project_X » Logged

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richie
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Posts: 5629



« Reply #10 on: February 09, 2008, 06:04:18 am »

if it lasts 5k you will be doing well Shocked

cheers richie,uk
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Project_X
Jr. Member
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Posts: 81


« Reply #11 on: February 09, 2008, 06:51:57 am »

if it lasts 5k you will be doing well Shocked

cheers richie,uk

Wow...ummm ok thats not what i want LOL
ok from my understanding a mouse motor from the other topic is a small CC motor under the 1800cc range or am I misunderstanding?
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Aircooled for a reason, waters for boats!
Project_X
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Posts: 81


« Reply #12 on: February 09, 2008, 07:36:51 am »

1914
Engle 125
40 x 35 heads
2 2 bbl carbs

there's a reason I suggest it to guys

it works

I know that size works, and its actually a backup plan  Wink but I was hoping for something under 1800cc that could rev high an be heard, know what I mean lol
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Tom G.
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« Reply #13 on: February 09, 2008, 09:24:32 am »

64mm is a stock 40hp crank I was told.I was thinking if I got one of them cheap, send it out to get counter weighted, then buy some cheap pistons off thesamba.What kind of compression would you guys run, since apparently I cant run 10:1 cr (which I didnt know) with a 64mm crank?Maybe 8.5:1?
Also yes Im going with a 64 to get the revs up, and Id go with a 74, but a 64 seems cooler IMO lol
Would this motor make any power before 4000rpms to move out its own way at all with a fk8 cam or would I want a crank that makes some torque at lower RPMS?
Also what all needs to be dont to a 1600DP to put a 64mm crank in it, I know the case needs to be bored out for 94's though.

Another idea would be 87x64, LOL I want a daily motor good to rev to 8k, if it lasts 50k thats fine, least I will have a learning experience.

the 1200 64mm crank is from all 1200 engines, the 40hp has the 69mm crank..And i would not use the 64mm on a performance engine, because:

1. the oil galleys are smaller then the original 69mm crank, for higher rpm you need a lot of oil to lubricate....
2. the oil galleys are not x-drilled....

But perhaps someone can told about that point and say it is not to so bad....

Bye
Tom
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Project_X
Jr. Member
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Posts: 81


« Reply #14 on: February 09, 2008, 16:05:26 pm »

64mm is a stock 40hp crank I was told.I was thinking if I got one of them cheap, send it out to get counter weighted, then buy some cheap pistons off thesamba.What kind of compression would you guys run, since apparently I cant run 10:1 cr (which I didnt know) with a 64mm crank?Maybe 8.5:1?
Also yes Im going with a 64 to get the revs up, and Id go with a 74, but a 64 seems cooler IMO lol
Would this motor make any power before 4000rpms to move out its own way at all with a fk8 cam or would I want a crank that makes some torque at lower RPMS?
Also what all needs to be dont to a 1600DP to put a 64mm crank in it, I know the case needs to be bored out for 94's though.

Another idea would be 87x64, LOL I want a daily motor good to rev to 8k, if it lasts 50k thats fine, least I will have a learning experience.

the 1200 64mm crank is from all 1200 engines, the 40hp has the 69mm crank..And i would not use the 64mm on a performance engine, because:

1. the oil galleys are smaller then the original 69mm crank, for higher rpm you need a lot of oil to lubricate....
2. the oil galleys are not x-drilled....

But perhaps someone can told about that point and say it is not to so bad....

Bye
Tom

Thanks for that information, I didnt know that about the 64mm crank, like I said, it would be a learning experience, least I didnt start the build and do it not knowing this. Grin
I was just told on the cal-look forum uh...the other one LOL that a 94x64 would be a fun motor but on the street they werent sure because it was a drag motor back in the day.
Also Ive had some people like I stated above that say these motors didnt actually move till after 4000rpms, but do they mean it was slow until it hit 4k or do they actually mean it didnt move till 4k? If so is there a cam that could change that, or is that all in the gearing, I have a stock tranny I'd have to run for a while though.
Sometime in March I'll start shopping for cheap deals on thesamba, ie pistons,crank ect.Ive sen a few 64mm cranks on thesamba go for 30 bucks, if I grab one of those,send it in to be counterweighted it should be fine for a mild hi perf. motor right, if you can get those counterweighted,not sure.
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Aircooled for a reason, waters for boats!
Zach Gomulka
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Posts: 6991


Don't piss down my back and tell me it's raining.


« Reply #15 on: February 10, 2008, 03:26:48 am »

Waste of time and money. Be smart and build a 1915.
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Project_X
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Posts: 81


« Reply #16 on: February 10, 2008, 07:06:48 am »

I had something weird happen today, come to find out my boss is a hardcore VW nut and I mentioned a 94x64 combo, an he told me (just like you guys) DONT DO IT! Instead he insists I go for a 1776cc with some Oval Port heads, dual IDA's and the wildest cam I can get for a 1776cc then run a 1.5 fuel sump, and a merged header with stinger (im not using one, no way) and a bosch 009 but I know theres better ignition kits.
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Aircooled for a reason, waters for boats!
John Rayburn
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Posts: 2481


Der Kleiner Panzers


« Reply #17 on: February 10, 2008, 07:12:41 am »

The best thing a 64mm crank does is break in two. Raise the compression and you've got a real grenade on your hands.
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Taylor
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Posts: 577



« Reply #18 on: February 10, 2008, 08:22:43 am »

there are a lot of things to think about when you build a destroked motor.

if you use a 69mm crank and destroke it you will only get to about 65.5mm with a chevy/buick rod.  but if you want to keep it vw  then you will have to have it welded.  that will cost you a ton of money. more than if you have a stroker welded crank made.

Also, if you do have one made make sure the rod journal oil hole is on center or it will be a lot bigger when they are done grinding it.

Head studs will be another pain when the motor is that much narrower especialy if you want a high C/R.

C/R is another thing  the heads will have to be welded up alot to get a lot of C/R

off the shelf header wont fit either.
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Project_X
Jr. Member
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Posts: 81


« Reply #19 on: February 10, 2008, 14:34:19 pm »

Thank you Taylor for that good info, I didnt know that stuff.Sucks it narrows the motor I definitively dont want that.I may just go wild  on a 1776 or 1914, not sure yet, whatever I find cheapest on samba is what I'll get startin next month.Im going to buy a part here and therer to make it fit my budget.
 
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Cheesepanzer
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« Reply #20 on: February 10, 2008, 18:06:13 pm »

I knew someone who was trying to experiment with different turbo applications and came up with a 64mm x 94 engine.  The crank was an old Berg unit, I believe, and the pistons were standard Mahle's.  The idea was built around rod ratios and large piston bore.  I think he ran long rods.  He wanted to run big boost numbers and see what happened.  As I recall it ran good enough to run low 11's in a fairly heavy street car.
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2muchjunk
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« Reply #21 on: February 11, 2008, 02:55:29 am »

The car Dave is referring to is a 64x94 fuel injected, intercooled turbo.
Crank is a welded, 69cw that was destroked to 64mm with a porsche journal. Rods are 5.5 carrillo.
Best run to date 10.72 @ 130 at Vegas last October

 







« Last Edit: February 11, 2008, 03:01:17 am by 2muchjunk » Logged

Thanks, I always appreciate unsolicited advice from ignorant bystanders!!
Project_X
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« Reply #22 on: February 11, 2008, 04:14:22 am »

The car Dave is referring to is a 64x94 fuel injected, intercooled turbo.
Crank is a welded, 69cw that was destroked to 64mm with a porsche journal. Rods are 5.5 carrillo.
Best run to date 10.72 @ 130 at Vegas last October

Thats pretty cool, but since the cranks are weak they didnt last long right?

Also Ive decided on a 1776cc after talking to a few people.I know a 1914 is a good option too but Im liking the 1776cc.
Since I was told I can run 48IDA's on a 1776cc, what is the biggest valves in a pair of heads with these carbs you guys would recommend while keeping it someone street worthy but fun at the same.
Thinking of these as and option
http://www.cbperformance.com/catalog.asp?ProductID=1181

http://www.cbperformance.com/catalog.asp?ProductID=1323

http://www.cbperformance.com/catalog.asp?ProductID=79

On the last link I posted what are DRLA's? I know these are the manifolds but what carbs?
Cam would be a FK8 maybe unless you guys think I should go better and depending on the cam 1.25 or 1.4:1 rockers, a 1 5/8 merged header and a 1.5 qt fuel sump with some type of ignition.

What you guys think, would it be kinda streetable?





« Last Edit: February 11, 2008, 06:01:33 am by Project_X » Logged

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Bewitched666
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Bewitched


« Reply #23 on: February 11, 2008, 08:14:51 am »

I would go for the wedgies Grin
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ugly duckling
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« Reply #24 on: February 11, 2008, 08:16:33 am »

my engine was a 1804 65x94 as far as i rember i have breated in a few aluim chips since then so the memery is kind of fuzzy  Cheesy. cool littel time bomb thoe.  d stroked 1500 noncross chev jornal p lenght jet tit rods. std maule 94s. i had two sets of heads on this engine 47x37 split ports oem. and SHO 46x38 turbo heads. in both combos lets just say you couldent give it enogf rpm. rpm red line WHATS THAT. good luck to ya if you do build one. D driver well i gusse it could be with some small heads on it and small cam but then your not taking atvantage of its rpm potential so then you should build a 1915 with some CI. these type of small engines have always been expencive to build espesily if you want them to become the high hp buzz saws.  UD.
« Last Edit: February 11, 2008, 08:19:11 am by ugly duckling » Logged

Zach Gomulka
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« Reply #25 on: February 11, 2008, 17:47:54 pm »

Thats pretty cool, but since the cranks are weak they didnt last long right?

Crank is a welded, 69cw that was destroked to 64mm with a porsche journal.
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Project_X
Jr. Member
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Posts: 81


« Reply #26 on: February 11, 2008, 23:26:34 pm »

My opinion is that you need to walk before you can run. If you haven't cut your teeth on building a high performance VW motor, then don't start with some off the wall, combination that everybody says NO to. And even besides building it, caring for it and maintaining it is the next chapter in the saga of headaches you're probably going to experience. The 1914 is such a good motor, for new guys and long-timers alike. You could build your 64mm motor, and if you don't get the heads, cam, port sizes, header diameter and length, valve timing, jetting, gearing, plus much much more....OPTIMIZED, then you will have a motor that can never be tuned, will be amazingly unforgiving, and you will probably get dusted by a very simple 1776+ cc with conventional parts. Some guys can reinvent the wheel, but they never leave the drawing board, mill, flow bench, dyno. Do yourself a favor and build the biggest cc engine you can, and be sensible about setting it up. Don't scan the catalogs for the biggest numbers (or the cheapest prices), because that NEVER works.
My suggestion:

1914
Engle 125 with stock rockers
New Volkswagen case
RIMCO or DPR c/w crank
8.5:1
40 x 35 heads with conservative ports
44 or 48mm Webers or Dellortos
1-1/2 or 1-5/8 header
full flowed with a securely mounted cooler under car and HP1 or Canton filter
factory VW cooling parts

You will have more fun than you can imagine.



Ok so what would be better bang for the buck, that 1914 with w125 w/stock rockers and dual 44-48 webers and 40x35 heads or a 1776cc with 48ida with matchport intakes with one of the types of heads I posted above in a previous post and using a FK8 with 1.4:1 rockers?
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Aircooled for a reason, waters for boats!
ugly duckling
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Posts: 648



« Reply #27 on: February 12, 2008, 02:05:55 am »

1915 all the way. cool little packedge. it packs a good punch for low dollar signs.  UD.
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Project_X
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Posts: 81


« Reply #28 on: February 12, 2008, 02:10:49 am »

so the 1915 with the wedge port heads then, or just standard heads?
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Thinking outside the box? hmm...I dont wanna play in the box no more, so Im stepping out for a while..
Aircooled for a reason, waters for boats!
ugly duckling
Hero Member
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Posts: 648



« Reply #29 on: February 13, 2008, 03:09:58 am »

if you are going to put any of cb heads on it i would put there 42x37 rnd ports on that engine. smaller port but good airspeed. somthing that you will need with a daily D more snappy and more drivible with the right cam and comp.  UD.
« Last Edit: February 13, 2008, 03:11:29 am by ugly duckling » Logged

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