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 Craig Paton
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| posted on September 9th, 2004 at 10:14 AM |
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Static Ratio "WAT THE"
What would be the Static Ratio of an engine with a bore of 94mm and a stroke of 84mm?
"Wat ever static ratio is!! :jesus
Cheers Craig P. |
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HotRodMatt
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| posted on September 9th, 2004 at 10:41 AM |
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For that bore/stroke it is 1.12 which has gone even further beyond the theoretical optimum efficiency than the 94/82.
It's not an engine ratio but the ratio between bore and stroke - which indicates how far the piston will travel as the crank begins to turn. A longer
stroke makes the piston travel further during the same amount of rotation than a shorter stroke. Too fast is not as bad as too slow in relation to the
bore. That is why the ratio is static as the piston velocity has less influence as the revs increase.
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Craig Paton
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| posted on September 9th, 2004 at 10:52 AM |
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Thanks.
I'll have to meditate on that!!!!
Cheers Craig. |
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Alex Holzl
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| posted on September 9th, 2004 at 11:33 AM |
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craigie when you getting your extra plugs?
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Craig Torrens
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| posted on September 9th, 2004 at 11:48 AM |
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So what you are saying Matt is that twin plugs will help an engine that has a cam designed to produce high RPM HP ?
It will,using your words,"Band aid" the bottom end and therefore help with the so called inherent problems you believe the cam may have ?
So if we then change the cam combo to better suit low range performance, what then happens to the High range?...........well you loose it ! That's
why variable valve timing has been developed...........unfortunately not available to us.
So Twin plugs has now given a high RPM HP engine the ability to also have increased bottom and mid range power.......... or what you call a "band aid
" solution.
I'm happy to live with that bandaid, instead of being limited with high piston speeds.
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Craig Torrens
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| posted on September 9th, 2004 at 11:52 AM |
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| Quote: | Originally
posted by Alex Holzl
craigie when you getting your extra plugs?
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for my hillclimb car or my new street car?
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Alex Holzl
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| posted on September 9th, 2004 at 11:55 AM |
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oooo street car? ya comin racing!!
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Craig Torrens
A.k.a.: Craig Torrens
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| posted on September 9th, 2004 at 12:22 PM |
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Yes.
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warb
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gimme some butter im on a roll.....
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| posted on September 9th, 2004 at 12:42 PM |
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some pics....
i also have a 16meg vid of the engine running, (the race one) let me know and i can email it...
wonder who that is on the left, not a bad engine... :p
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56astro
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| posted on September 9th, 2004 at 01:04 PM |
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Stan had such a big power increase that he had to put the rear tyres on the front of his race car, and get even wider ones for the rear.
He needs some rubber on the back that are as sticky as ...... um ..... band aids!!
:P
[Edited on 9-9-2004 by 56astro]
VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa |
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Craig Paton
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| posted on September 9th, 2004 at 03:13 PM |
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Who owns the blue bug with the horizontally opposed 8 cylinder? 
Looks like a pretty good setup to me! |
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56astro
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| posted on September 9th, 2004 at 03:26 PM |
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Well it would be except the static bore/stroke ratio is nowhere near 1:1.18 (or something like that!
:cry
VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa
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Craig Paton
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| posted on September 9th, 2004 at 03:45 PM |
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green57
You have a u2u
Cheers Craig. |
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Alex Holzl
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| posted on September 10th, 2004 at 10:30 AM |
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craigie and i mean REAL racing!!???
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the_addoniss
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| posted on September 12th, 2004 at 05:52 AM |
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I was just curious if anyone has done a dyno test before and after 1plug then 2plug only changeing these two varients?
Also i was curious how much this cost?
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Gracey
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| posted on September 12th, 2004 at 04:37 PM |
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Woohoo, that's my blue bug with the mutant dissy. Cool eh.
If you want a high revving VW engine with street manners to boot, then twin plugs are the go.
Andrew Grace
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Alex Holzl
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| posted on September 13th, 2004 at 10:22 PM |
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hahaha a closed circuit type of track not that hillclimbing is no good but come race with us?
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Alex Holzl
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| posted on September 13th, 2004 at 10:29 PM |
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just the porsche club so far...
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Craig Torrens
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| posted on September 13th, 2004 at 10:35 PM |
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I know the club...........but what class......surely REAL racing would have vehicle categories to CAMS specs?
What category is your car?
What do you compete for..points/trophy/money/records.............surely REAL racing would have one of these to aim for.
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Alex Holzl
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| posted on September 13th, 2004 at 10:43 PM |
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in this club you can race for what ever you want lol. i dunno i dont pay much attention to that stuff i just wanna go for a burn. i think they give a
trophy or sumthin for sumthin, jaks got afew. they have 5 groups with witch you can place urself in any soo u are out with cars doin the same speed as
you... My car is in ASSO VW coz the VWs hav there own class now.
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Alex Holzl
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| posted on September 13th, 2004 at 11:03 PM |
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hahaha yeh they bloody do drive like old men!!! i need more experiance before i go grid starts. but thats y im out there learnin and learnin. i drove
a 2002 996 the other night was bloody good but for $180 000 id still rather a beetle... will be good to race with u craigie then maybe you can say to
your mates youve blown some porsches off at the track!!!
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 Peter Leonard
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| posted on September 13th, 2004 at 11:07 PM |
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i'd be worried about burning my lips, or catching something from blowing a porsche :P
let sleeping dubs lie
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Alex Holzl
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| posted on September 13th, 2004 at 11:26 PM |
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hahahaha
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VWCOOL
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| posted on September 14th, 2004 at 09:09 AM |
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| Quote: | Originally
posted by HotRodMatt
MSD isn't just a better spark it's multiple sparks from one plug - usually at around 20 degrees of rotation...
Quite simply - a properly conceived combination does not require either MSD nor twin plugs to operate effeciently under 3000rpm while still producing
hp at high revs.
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So, you've developed some magic way of altering the shape and speed of prop of the flame front, have you? Do tell!
Pay your debts, CxxT
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