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Author Topic: winter project - dual carb manx engine  (Read 66565 times)
nicolas
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« Reply #60 on: March 03, 2009, 11:37:25 am »

Now your Buggy will not only looks cool, but will also go faster  Grin Grin



that still has to be seen, don't jump to conclusions yet

oh, hey Lee..  Grin

ha ha ha  Wink Well I worked out I need 40cc chambers to get a CR of 9.3:1 - Any thoughts? Smiley

drill heads 1mm and that could be enough to get 8.5 or 9
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Lee.C
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« Reply #61 on: March 03, 2009, 13:42:33 pm »

just read this for the first time, slick work monkiboy! cant wait to see pics of when the intakes are finished.

Si.

Cheers dude Smiley Like I said before I could have done this ALOT easyier AND quicker but it would NEVER look as cool Wink

Now your Buggy will not only looks cool, but will also go faster  Grin Grin



that still has to be seen, don't jump to conclusions yet

oh, hey Lee..  Grin

ha ha ha  Wink Well I worked out I need 40cc chambers to get a CR of 9.3:1 - Any thoughts? Smiley

drill heads 1mm and that could be enough to get 8.5 or 9

Thanks Nicolas - I was going to measure the chambers just out of interest to see what I already have but I am just gonna give them to a local engine/machine shop and just ask him to set the chamber at 40cc which equals 9.3:1   Grin
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j-f
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Jean-François


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« Reply #62 on: March 03, 2009, 21:28:08 pm »

Why do you want so much CR?
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Lee.C
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« Reply #63 on: March 03, 2009, 23:26:53 pm »

Why do you want so much CR?

Why Not get as much BANG as possible  Wink Smiley

I also worked out 42cc gives me 9.0:1 and 45cc gives me 8.60:1
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ESH
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« Reply #64 on: March 04, 2009, 10:05:47 am »

Why Not get as much BANG as possible  Wink Smiley

Good point, how about a 4 inch bore motor fed by EFI and a turbo. With the buggy you'll be able to pull a 50-50 grind on the guard rail.

 Shocked  Grin
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Lee.C
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« Reply #65 on: March 04, 2009, 12:11:16 pm »

Why Not get as much BANG as possible  Wink Smiley

Good point, how about a 4 inch bore motor fed by EFI and a turbo. With the buggy you'll be able to pull a 50-50 grind on the guard rail.

 Shocked  Grin

Don't you start Mr Webb already trying to plant little ideas Wink Smiley
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ESH
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« Reply #66 on: March 04, 2009, 12:31:05 pm »

... Don't you start Mr Webb already trying to plant little ideas ...

It'd be 'good fun'...  Shocked
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j-f
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Jean-François


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« Reply #67 on: March 04, 2009, 13:26:23 pm »

Why do you want so much CR?

Why Not get as much BANG as possible  Wink Smiley

I also worked out 42cc gives me 9.0:1 and 45cc gives me 8.60:1


Yes but on a street buggy on a relatively soft engine, do you have benefits of increasing CR that way?
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Lee.C
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« Reply #68 on: March 04, 2009, 13:39:35 pm »

Why do you want so much CR?

Why Not get as much BANG as possible  Wink Smiley

I also worked out 42cc gives me 9.0:1 and 45cc gives me 8.60:1


Yes but on a street buggy on a relatively soft engine, do you have benefits of increasing CR that way?


You are probably right and I will probably go for 45cc/8.60CR That should be more than enough  Grin
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j-f
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Jean-François


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« Reply #69 on: March 04, 2009, 19:07:29 pm »

Why do you want so much CR?

Why Not get as much BANG as possible  Wink Smiley

I also worked out 42cc gives me 9.0:1 and 45cc gives me 8.60:1


Yes but on a street buggy on a relatively soft engine, do you have benefits of increasing CR that way?


You are probably right and I will probably go for 45cc/8.60CR That should be more than enough  Grin

I'm not an expert as you know, but I don't think it's good to have so much CR when you plan to drive it on long trip as SCC, Bad Camberg, EBI etc.
On the other hand, your buggy is lighter than a sedan, so maybe there is less constrain?
What do the expert on the forum think?
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nicolas
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« Reply #70 on: March 05, 2009, 18:18:28 pm »

... Don't you start Mr Webb already trying to plant little ideas ...

It'd be 'good fun'...  Shocked

SPG sucks SPG sucks
turbo rules,
EFI good, points bad
...

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Lee.C
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« Reply #71 on: March 06, 2009, 13:44:19 pm »

... Don't you start Mr Webb already trying to plant little ideas ...

It'd be 'good fun'...  Shocked

SPG sucks SPG sucks
turbo rules,
EFI good, points bad
...



 Cry Cry Cry where's the love Huh Cheesy You've been hanging out with Mr Webb a little to much  Kiss

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nicolas
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« Reply #72 on: March 06, 2009, 13:54:12 pm »

 Grin

it's called evolution.

did you know that the biggest step forward in the last thirty years in better performance and better economy in reasurch has been the angle at which the valves are cut?

so you should still be good with your parts. but i reread the hotrodbook and they are very much against dragracing with SPG's but you knew that.

anyway do i need to get worried about you whooping my ass bigtime or do i still stand a chance?  Grin Wink
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Lee.C
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« Reply #73 on: March 06, 2009, 14:16:57 pm »

Grin

it's called evolution.

did you know that the biggest step forward in the last thirty years in better performance and better economy in reasurch has been the angle at which the valves are cut?

so you should still be good with your parts. but i reread the hotrodbook and they are very much against dragracing with SPG's but you knew that.

anyway do i need to get worried about you whooping my ass bigtime or do i still stand a chance?  Grin Wink

You see OLD SKOOL RULES!!!! and as for the SPG and drag racing I was just about to start a thread about that subject  Wink

And I would say YES you do have to start worrying - I'll call you later dude  Smiley
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JS
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« Reply #74 on: March 06, 2009, 14:21:33 pm »

... Don't you start Mr Webb already trying to plant little ideas ...

It'd be 'good fun'...  Shocked

SPG sucks SPG sucks
turbo rules,
EFI good, points bad
...

Shocked Shocked Shocked

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nicolas
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« Reply #75 on: March 06, 2009, 14:35:59 pm »

And I would say YES you do have to start worrying - I'll call you later dude  Smiley


so i will have to wear my sneakers for sneaking into your garage saturday night off VoWo and sabotage the whole setup. duley noted...
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ESH
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« Reply #76 on: March 06, 2009, 17:07:34 pm »

... it's called evolution ...

Lee's undergoing a studied 'devolution' which is fine but you can't install even vintage parts with just a rock tied to the end of a stick. No matter how hard you hit them.

 Shocked 
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Lee.C
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« Reply #77 on: March 06, 2009, 20:07:50 pm »

... it's called evolution ...

Lee's undergoing a studied 'devolution' which is fine but you can't install even vintage parts with just a rock tied to the end of a stick. No matter how hard you hit them.

 Shocked 

it you hit things hard enough they will work eventually  Cheesy Cheesy Cheesy
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ESH
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« Reply #78 on: March 06, 2009, 20:10:08 pm »

... it you hit things hard enough they will work eventually ...

Good luck with the "build"!  Cheesy
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j-f
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Jean-François


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« Reply #79 on: March 06, 2009, 20:59:51 pm »

... it's called evolution ...

Lee's undergoing a studied 'devolution' which is fine but you can't install even vintage parts with just a rock tied to the end of a stick. No matter how hard you hit them.

 Shocked 

It remember me this old ads.  Cheesy
« Last Edit: April 18, 2009, 09:19:51 am by j-f » Logged
Lee.C
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« Reply #80 on: March 13, 2009, 19:08:57 pm »

Anymore thought guys as I will starting the rebuild soon Smiley
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Zach Gomulka
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« Reply #81 on: March 14, 2009, 00:26:26 am »

I'd keep the compression around 8:1.
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Lee.C
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« Reply #82 on: March 14, 2009, 00:43:58 am »

I'd keep the compression around 8:1.

ok dude 45cc chambers it is then - that keeps it around 8 ish  Wink Smiley
« Last Edit: March 14, 2009, 01:14:40 am by monkiboy » Logged

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Lee.C
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« Reply #83 on: April 18, 2009, 01:42:30 am »

Oh it look like i'm going for 42cc chamber/ 9:1 Shocked

Updates VERY VERY VERY soon I promise guys  Wink Smiley
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Zach Gomulka
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« Reply #84 on: April 18, 2009, 01:57:32 am »

Winter's over Lee!! Cheesy Wink
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Lee.C
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« Reply #85 on: April 18, 2009, 02:32:49 am »

I know I know - there has already been a few day I wished I'd just left the engine alone  Roll Eyes But hey what fun would that be  Undecided Wink Smiley

I dropped my heads off at a local (ish) Formula Vee Shop - We had a really good talk and he has some COOL plans for my heads - oh yeah I am also NOT going for the 1.25 after all  Roll Eyes

Should make some good power when its done  Smiley
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Lee.C
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« Reply #86 on: April 20, 2009, 00:15:26 am »

well here's the muffler Wink
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jamiep_jamiep
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« Reply #87 on: April 20, 2009, 08:55:04 am »

Looks cool Lee.... what make is the muffler? Reminds me of one I used to run on my old 59 looker many moons ago.
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jamiep_jamiep
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« Reply #88 on: April 20, 2009, 08:57:33 am »

Durr... just seen your thread re: the muffler Lee - well done!!!
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Lee.C
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« Reply #89 on: April 23, 2009, 22:25:52 pm »

Well all the Ali welding is finally done and the manifolds are off being matched to my Formula Vee heads, Pic's soon I promise guys Grin
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