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Author Topic: winter project - dual carb manx engine  (Read 66629 times)
richie
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« Reply #90 on: April 24, 2009, 16:46:09 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

Lee,one thing puzzles me,formula vee is a restricted formula with few allowable modifications,why would you restrict yourself to this same criteria?  seems strange to get formula vee heads?


cheers richie
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Zach Gomulka
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« Reply #91 on: April 24, 2009, 17:26:45 pm »

Formula Vee ran 40hp single ports, Super Vee allowed a lot more motor- so I'm betting that's what the heads are based on???
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richie
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« Reply #92 on: April 24, 2009, 17:47:00 pm »

Formula Vee ran 40hp single ports, Super Vee allowed a lot more motor- so I'm betting that's what the heads are based on???

Not sure if thats the same over here though?

cheers richie
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Lee.C
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« Reply #93 on: April 24, 2009, 18:09:32 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

Lee,one thing puzzles me,formula vee is a restricted formula with few allowable modifications,why would you restrict yourself to this same criteria?  seems strange to get formula vee heads?


cheers richie

Dude I was using that term very losely and I only called them "Formula Vee" heads as the maching/port work is being carried out by a Formula Vee Shop  Wink

Don't worry it won't be "restricted" - I also thought it would be best to go to the FV guys as they would have more experience of getting maximum flow with "Stock" sized valves  Smiley
« Last Edit: April 24, 2009, 18:58:47 pm by monkiboy » Logged

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Lids
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« Reply #94 on: April 25, 2009, 07:12:01 am »

Alex spring got his heads done there, he was very impressed.
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Lee.C
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« Reply #95 on: June 14, 2009, 15:22:51 pm »

Hey guys - should have some pic's VERY soon  Wink Smiley the FV guys have finished porting & polishing the heads AND manifolds - They were pretty interested in my "modified" Race Trim items  Smiley

All the spring pressure's have been checked/adjusted along with fitting a set of cromoly retainers and collets  Grin (just waiting on a batch of there own modified retainers)

The haeds AND manifolds have been on the flow bench and everything looks good - 75cfm across the manifold and port with STOCK valves (35/32) apparently stock 044 off the shelf only have 72cfm  Undecided Smiley
They have done alot of work just under where the carb sits as with the shortening it was quite a steep angle - its all good now  Grin

I am STILL waiting on carb parts from the States (pierce manifolds) but they should be here in a week or so  Undecided its getting pretty close for EBI but I will be there don't worry.

Oh yeah there is also the slight problem of a Slightly bent front beam from all that off roading  Shocked Roll Eyes Cheesy
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Lee.C
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« Reply #96 on: June 14, 2009, 15:41:25 pm »

Also forgot to menion - The heads potential is now said to be 130bhp even with the STOCK valves (again read potential!) This is a quote their company stand by Smiley

And after chatting about my spec/set up with the FV guys they ESTIMATE around 110/115bhp on my motor Grin

I have also been advised to go back to ALUMINUIM push rods with an 8thou gap - FV guys say thats what they use AND they are easy good for 8000rpm! - Any thoughts Huh Smiley
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Lids
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« Reply #97 on: June 14, 2009, 15:50:00 pm »

speak to alex spring (too old) he used their pushrods and i think they bent.
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Lee.C
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« Reply #98 on: June 14, 2009, 15:52:40 pm »

speak to alex spring (too old) he used their pushrods and i think they bent.

Hmmm but that was ALOT biger motor - more valve, more spring pressure, more carb more revs etc etc - I think i should be ok  Undecided Smiley
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too old for this
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« Reply #99 on: June 14, 2009, 22:09:45 pm »

You have pm Lee
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JG54
Lee.C
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« Reply #100 on: June 14, 2009, 23:05:52 pm »

You have pm Lee

Cheers dude  Wink
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jamiep_jamiep
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« Reply #101 on: June 16, 2009, 10:13:32 am »

Sounds like yiou're getting there Lee. I know a lot of these FV guys really know how to squeeze the power out of their engines, so I bet those heads will be great. WOuld love to see some pictures of them when you get them back!
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Lee.C
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« Reply #102 on: June 16, 2009, 11:01:47 am »

Sounds like yiou're getting there Lee. I know a lot of these FV guys really know how to squeeze the power out of their engines, so I bet those heads will be great. WOuld love to see some pictures of them when you get them back!

Yeah gettin there apart from this little problem  Roll Eyes http://cal-look.no/lounge/index.php/topic,9354.0.html

I sdhould have the heads and manifolds back this friday so pic's soon I promise - And your right when you start talkin to these FV guys you soon realise they really do know whats what  Wink Smiley
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71CALRIPPER
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« Reply #103 on: June 19, 2009, 09:44:53 am »

So why the change in wheels dude, its looks so right on them !! Sad
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Lee.C
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« Reply #104 on: June 19, 2009, 11:26:08 am »

So why the change in wheels dude, its looks so right on them !! Sad

Wheels are stayin now dude - I did need the cash but I have sorted things out for now  Wink
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Lee.C
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« Reply #105 on: June 23, 2009, 22:20:29 pm »

Anyway back to the main topic and the pic's that I know a few of you have been waiting for  Wink Went to see my man at GAC Formula Vee racing this evening and I am very happy  Grin

The manifolds have been match ported as well as being "ported" just under where the carb sits to because of the new angle due to the shortening, The inlet ports have been fiddled with to give a few more CFM.

The Chambers have been flycut 2mm to give 42cc chambers and a Comp ratio of 9.057:1

There is also some brand new cromoloy retainers and collets  Grin

Now just some finishing and painting then its time to try and put it all back together  Cheesy

What Torque should I do the head nuts to with the new Comp ratio?  Huh
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Lee.C
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« Reply #106 on: June 23, 2009, 22:21:51 pm »

A couple more  Wink Smiley
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Lee.C
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« Reply #107 on: June 24, 2009, 03:30:03 am »

Just look what you can do with a few hours in the garage, some files, a grinder and a bit of paint  Wink Smiley
« Last Edit: June 24, 2009, 03:39:51 am by monkiboy » Logged

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Lee.C
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« Reply #108 on: June 24, 2009, 03:32:05 am »

A few more  Wink I love this set up  Grin
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Lids
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« Reply #109 on: June 24, 2009, 06:26:37 am »

need to detail those carbs, how about gold plate:)
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Fasterbrit
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« Reply #110 on: June 24, 2009, 09:25:12 am »

Looks like they are read to accept turbo boost Wink Wink Wink
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jamiep_jamiep
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« Reply #111 on: June 24, 2009, 09:32:45 am »

Nice Lee.... Smiley
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Lee.C
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« Reply #112 on: June 24, 2009, 09:35:42 am »

need to detail those carbs, how about gold plate:)

Give me a break dude it was gone 3am when I finished off the manifolds Roll Eyes Wink Smiley

Cheers though guys - All I have to do now is wait for my carb parts order to get here from the states  Sad
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nicolas
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« Reply #113 on: June 24, 2009, 10:18:17 am »

the filters really look cool. way to go.
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Lee.C
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« Reply #114 on: June 24, 2009, 11:53:04 am »

the filters really look cool. way to go.

Cheers dude - I think your really gonna dig the "new" motor  Wink I might just give you a call later  Smiley
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Lee.C
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« Reply #115 on: June 24, 2009, 12:03:41 pm »

Looks like they are read to accept turbo boost Wink Wink Wink

And your right dude CR is about right, I already have an upright style 4into1 header - just bolt on a turbo and some tubing, seal the airboxes to the carbs JOB DONE !!!!

Anyone got a spare hairdryer  Huh Cheesy
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jimi323
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« Reply #116 on: June 24, 2009, 12:43:56 pm »

very cool Lee!
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Lee.C
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« Reply #117 on: June 25, 2009, 00:10:32 am »

A sneek preview guys  Wink Smiley Check out the rather unique linkage  Shocked Smiley
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jamiep_jamiep
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« Reply #118 on: June 25, 2009, 09:04:06 am »

Looks great Lee!
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nicolas
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« Reply #119 on: June 25, 2009, 09:23:26 am »

hey that all looks nice. i would swap the arms on the linkage around and make it a push system. not that that is better, but the rods from the linkage to the carbs would not he so crooked. i think that affect the similar opening off the carbs... but that might just be me. but think off it. the arm to the right carb has a really different openingpath/ rate as the arm on the left carb.

why am i helping you out anyway with a 200kg weighing buggy???  Grin

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