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Learning how to build Lotus Seven replicas...together!
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PostPosted: Fri May 15, 2009 11:28 am 
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Joined: Sat May 09, 2009 1:44 pm
Posts: 272
Location: northampton ma
hi
lota pictures as i go. its a 442e more or less.
2.4 gm ecotec engine w/turbo, light flywheel, megasquirt, solstice 5 speed, firebird rear axle.
ask me what ever you want.
rad
http://sites.google.com/site/radslocostbuild/


Last edited by rad on Sat May 16, 2009 8:52 am, edited 1 time in total.

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PostPosted: Fri May 15, 2009 11:53 pm 
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Joined: Fri Jan 05, 2007 6:23 pm
Posts: 101
Location: Charlotte, NC
FINALLY!!!!!

I've waited 2 years for someone to do an ecotec build. You need to start a build log here.
Those 600 Racing uprights look good.
Have you decided on the turbo system for your le-5? Tell me more!


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PostPosted: Sat May 16, 2009 9:01 am 
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Posts: 272
Location: northampton ma
hi going to start with a cheap turbo off ebay, will limit to a 9lb boost.. for now i will keep the stock compression, head gasket, head studs.
not sure how i am going to handle the vvt yet, might just use 2 or more stages. as megasquirt cant handle full control yet.
the 600 racing spindles are very nice, cheap too.


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PostPosted: Wed May 20, 2009 7:36 pm 
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Joined: Sat May 09, 2009 1:44 pm
Posts: 272
Location: northampton ma
an updated engine picture


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PostPosted: Sat May 23, 2009 6:15 pm 
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Location: northampton ma
picture of tie rods done


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PostPosted: Sat May 23, 2009 7:42 pm 
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Joined: Sat May 17, 2008 8:01 am
Posts: 70
Location: Simi Valley CA
The build looks great. Any Idea how much power you think the ecotech will make on 9 psi?


Do you have any more info on those 600 racing uprights like kpi, ball joint to ball joint distance, can you squeeze them in 13" wheels without ending up with a crazy scrub radius? They look perfect.

Thanks,
Rory


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PostPosted: Sat May 23, 2009 9:14 pm 
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Location: northampton ma
if i can work out a way to do the cam timing well ,, i think 300 to 325 flywheel hp.. am using megasquirt.


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PostPosted: Sat May 23, 2009 9:37 pm 
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Joined: Sat May 17, 2008 8:01 am
Posts: 70
Location: Simi Valley CA
That thing will be a rocket ship with that much go. I've seen a few turbo ecotechs used in offroad stuff but not in a locost. Looks like is going to be one fast car. I will keep an eye on your progress. If you have got the data on those uprights, I bet a lot of people would want to see it in the upright picks and measurements thread http://www.locostusa.com/forums/viewtopic.php?f=5&t=1292.

Rory


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PostPosted: Sun May 24, 2009 6:15 pm 
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Joined: Sat Apr 05, 2008 2:25 am
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Location: Fort Worth, Texas
From the look of the upright/steering arm it appears you could easily make it a front or rear steer plus by changing the length of the arm change the steering "ratio" or effort a little.

For whatever reason all I get with the link in the first page is a huge picture and a list of some other pictures with no write up.

I thought I'd find info on those uprights on your other site, but alas and alack I got nothing so do you have any links to tell me where you got them, etc.?

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mobilito ergo sum
I drive therefore I am

I can explain it to you,
but I can't understand it for you.


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PostPosted: Sun May 24, 2009 11:56 pm 
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Joined: Sat May 09, 2009 1:44 pm
Posts: 272
Location: northampton ma
guess i am to busy building and taking pictures. i will try to get rid of that big picture in the link. you can see those spindles at( 600racing), look at legend cars. the steering arms can be reversed. but no Ackerman as a rear steer.
tuesday i wll post up the spects. legend cars do use 13 inch wheels.


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PostPosted: Mon May 25, 2009 9:35 am 
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Location: Charleston, WV
Awesome job Rad. What rack is that?

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He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.


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PostPosted: Mon May 25, 2009 8:16 pm 
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Joined: Sat May 09, 2009 1:44 pm
Posts: 272
Location: northampton ma
that is a rockauto.com,, ,,, chevette rebuilt power rack ,, $65.00 .. got maxi ball joints there too, 5 days from England,under $35.00 total. going to depower it soon.. with wishbone i fooled with the facts till i got it to fit without any mods, you can see rather solid mounts. the chevette rack would be very slow with other steering arms.


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PostPosted: Tue May 26, 2009 6:23 pm 
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Joined: Sat May 09, 2009 1:44 pm
Posts: 272
Location: northampton ma
the 600 racing front spindles , according to wishbone the installed kpi is 7.3 ..
its 8.25 inches between ball joint centers. i did ream the ball joint mounting holes some . i am going with 25 inch total tires.


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PostPosted: Tue May 26, 2009 9:04 pm 
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Joined: Sun Jul 06, 2008 12:48 am
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Location: Amador County, CA
How do you de-power the rack? Sorry for o/t question. $65 seem nice for a new clean rack when all i have to do is order it online.

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PostPosted: Wed May 27, 2009 10:55 am 
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Posts: 272
Location: northampton ma
to depower a steering rack, you remove all the seals and valves , has less internal drag then. and the ratio is quicker than a non power unit. there are lots of bargains out there, just gota look.


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