78 vs 82

[bugnut68]

this motor is starting to sound like the 2007cc that hot vws put together in 1996 which can't be all bad

I'm bulding that identical engine, only difference is in the heads (Steve Tims Stage II's versus Fumio's 40x35.5mm) and the carbs (45 Dells vs. IDAs).  Not to say it won't have IDA's someday...  Maybe someday I'll save up some coin for my first set of 'castles.'

[dirk zeyen]

the engine was on the dyno with 40drla 45drla (38 vents- i think to big) and 48 ida

love my steve tims stage 1 but stage 2 will be better

[speedwell]

you can ask "speedwell"

for sure he can scan!!!
you can also ask him about the dellorto drla build up article he had scanned for me....

ASK THE ARCHIVIST!!!

 

[fredy66]

this motor is starting to sound like the 2007cc that hot vws put together in 1996 which can't be all bad

I'm bulding that identical engine, only difference is in the heads (Steve Tims Stage II's versus Fumio's 40x35.5mm) and the carbs (45 Dells vs. IDAs).  Not to say it won't have IDA's someday...  Maybe someday I'll save up some coin for my first set of 'castles.'

just what i was thinking

[Zach Gomulka]

You know what your first thought will be after you drive it? "Wonder what it woulda been like with the 82..."

[rick m]

My thoughts exactly Zach.  I love long stroke motors. I take the extra time to do all the clearancing, etc.  I like the displacement and torque of the long strokes and big bores.

RM

[dirk zeyen]

4mm more stroke...... for sure more power....... but a lot more work and parts!!!
like mr. ratto said!!!

[Zach Gomulka]

An 82 with Chevy rods fits in the same case as a 78 with VW rods To each his own

[fredy66]

i have the 78 and its my first one
there is next winter

[fredy66]

so
More parts coming and arrived
pump oil
5.5 I-rods
8 doweled flywheel
and cylinders

any bod have some heads That don't need

[bugnut68]

Invariably, there's no way to build a one-size-fits-all engine...I'm sure this one will become bigger someday when I have the time and funds to go more radical.  In the meantime, the 2017 combo should prove to be more than enough fun to bracket race and cruise on the streets of Lakeview, Oregon, population, 2,500.  And the majority of that population drives loud, obnoxious diesel bro trucks.  Lol.  Difference between here and the city is that bro trucks get USED, so in that regard they're not really bro trucks. 

[fredy66]

I'm hoping for something faster then my old 30 hp   
its a long time to may so hope its all done then

sill wondering what cam to do

[Jim Ratto]

5.500 rods are on the long side for a 78mm crank.
A stock 5.394 or Porsche 5.352 would make your life much easier when setting deck and valvetrain up.

[fredy66]

explane place
The other forum i was told to get the 5,5
i can get the 5,4
if that's beater

b pistons and co max 9:1

[Jim Ratto]

two schools of thought of long vs short
(Really, in my opinion, the long rod is a way to get parts to clear when using 82-84-86+mm stroke.)
Aside from the mechanical end of things, meaning necessity of a long(er) rod to have things like skirts not hit counterweights, etc, some think a longer rod will make more power. This is all down to engine configuration, how well it responds to tuning, VE %, which all comes back to breathing charateristics and valve timing. In a nutshell, where you want the piston in relation to valve opening at desired rpm range. A 5.500 rod is a good fit, if needed to clear parts on 84mm-86mm crank.
I use 5.394 on my 78 stroke. Deck height with no shim @ base of cylinder (on my case) comes in right @ .061"
My take on rod length vs piston speed (within reason): you want the speed up, as long as parts are up to the task. It makes the intake ports and the carbs "think" they are on a bigger cc motor before the cam comes in. A guy I worked under said it well: "A piston sitting still ain't doing it's fair share". Which I get, though that isn't 100% true.

I would suggest 5.394 or 5.352".

[Donny B.]

I have 5.352 on my 78 stroke motor.  It makes for a narrow engine that fits well in the engine compartment.  some think that the shorter stroke actually provide a better signal for the carbs especially if you don't run a lot of compression which I don't.

[fredy66]

OK so i have my 311 vw rods looked at
thanks

[Udo]

A crank with Vw rod journal size is much stronger than chevy's . I have build an 82x90.5 engine for my street car in the past dynoed at 195 hp for street and strip. I also drove it on the ciruit track . Very nice and fun engine. All you need is a good crank.
Udo

[fredy66]

have a good crank
where can i get my rod rebid in Europa ??

[Udo]

This is what i do with original rods. Works great for higher rpms

Udo

[Zach Gomulka]

Those look pretty

[fredy66]

this any good

http://www.thesamba.com/vw/classifieds/detail.php?id=1053251


just noticed they  are 5.325 and not 5.352 

[nicolas]

this any good

http://www.thesamba.com/vw/classifieds/detail.php?id=1053251


just noticed they  are 5.325 and not 5.352 

he meant 5.352 

and if i am correct Taylor Walton is in DKP??? and all depends on where the damage really is...

[fredy66]

to good to be true.
why is this going to be so hard .
my local shop have 5.5 and 5.4 I-rods not the
5.394 and is not inn my budget to spend 340 € to rebuild my old rods.
what to do   

[Zach Gomulka]

5.394 & 5.4 is the same thing. Don't worry about .006"!

[fredy66]

5.394 & 5.4 is the same thing. Don't worry about .006"!

ok thanks man 

[fredy66]

OK so now we have

78.4 AA crank
8 doweled flywheel (coming)
5.4 AA rods (coming )
94 b male pistons
AA cylinders (coming )
as 41 case
26 oil pump
and some small bits and pieces

i,m drooling on the heads and carbs inn the for sale part
but think that have to wait 

[fredy66]

so what heads to go for ??

Steve tims looks good and the price is good thanks to the $$

stage1

ore save some moor money and do the stage 2

any is there any other i need to consider

[Zach Gomulka]

Stage 2, or something similar from another head porter.

[stealth67vw]

this any good

http://www.thesamba.com/vw/classifieds/detail.php?id=1053251


just noticed they  are 5.325 and not 5.352 

he meant 5.352 

and if i am correct Taylor Walton is in DKP??? and all depends on where the damage really is...

5.325 H beams have been available in the past. My 1990s Bugpack catalog has them in Chevy journal.