replicars build

As per the Ron Champion book

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replicars build

Postby wacky wayne on Thu Oct 24, 2013 6:50 pm

hi guy hope this is the right place for my build diary ,

let me start im a technician by trade , and have a few year racing experience ,dirt oval and karting ,

the last few years have been tough as i have a rare eye degenration , and a seven is one thing i always wanted of my own , so a hasty plunge , but what i got is workable . i am quite capable of welding and weld all materials the only thing is these day my helmut screen is painted black so i weld completely blind as not to damage my eyes further , im sure you will appreciate that when you see pics of my welding so go easy on the comments , the bad parts is i still weld better than most my friendss lol ,


just to put my intentions on paper its a replicar chassis as found out in this fourm ,

it has a nissan 1400 diff, it had rose joints all round , was rolling chassis with 4 age motor with cressida 18r box , it has body work , but its to big for the car.

since my start i rectified a lot of basic wrongs such as diff bracket squrness they where made all different and uneven positioning , thats now fixed , shocks and springs fitted spot on after this , so did the trailing arm,s where made on the bench and all fitted perfectly . adjusted to the correct lengths,

i will start the front in a few weeks , but will document my major difference in my build ,


electronics , i will be using arduino mico controller for a dash an data logger , low cost as such but also major fun and frustrations ,

i have attached a pic of it , its a lcd and will display all the normal stuff , and drive the analog guages , also will give a trip meter ,
i have written most of the code all ready , and tested and simulated , so it would just be a paramter change to code for sevens wheels and ratios etc

i also intend to not have a key but use an sd card as i would have it there for data logging anyway . and inteligent push button start as with modern cars ,

thanks guys will keep you up do date , please excuse bad typing but sometimes just cannot see the text
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Re: replicars build

Postby wacky wayne on Mon Oct 28, 2013 9:04 pm

hi guys can anyone tell me what angle the motors normally fit at from front to back , its a 4age so what are other guys getting , iam offset by about 8mm to the left using a t50 box , also what height is average out there i am about 15mm below nose cone , all looks good just hate things that are not square
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Re: replicars build

Postby Garreth on Thu Oct 31, 2013 7:57 pm

Hi there,

I am running a 4AGE with a cressida box so not quite the same.
With this said I would not worry too much about those 8mm. The prop shaft should be good for that type of alignment.
Unless anyone else feels strongly against this. :?:

The height is more pre determined by your sump clearance. If your sump is sufficiently safe then you are good.
I don't know if you making your hood or not?
If you are place your nose cone on the chassis and then take a piece of string along the front-back center line to your scuttle. This will give you the space you have to work with. If you dont have a scuttle yet then this is also a good way to get the right body shape and height for your liking.

PS: really great to hear you giving this a shot even with your eye condition :) Will keep following your progress.
Cheers
Garreth
Completed 1.6L 20V ST
Designing Ariel Atom Clone
http://www.garrethslotus.tumblr.com
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Re: replicars build

Postby wacky wayne on Fri Nov 01, 2013 10:20 pm

thanks garreth yeah im a doggerd bugger lol , yeah im fine with how it all sits it is the straightest it will go , yeah gonna keep you guys posted ,just been busy week at work , this weekends chalenge is control arms rack and colum shuold get it done , well tack welded , my appy is gonna finallise the welding for me the guys at work dont want me to and i aprreciated that they care enough also give them something to add to the build , i have shortend my time span to january so goto give it hell as gonna go for eye op then ,

thanks
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Re: replicars build

Postby wacky wayne on Sat Nov 16, 2013 7:27 pm

well after a while i set the chassis on the floor tonight to check its stance . wow nice and low . this chassis had it control arm mounts cut off , so i had to make jigs to get it all back to the design . i have only tacked it all . when it was in air i had a design ground clearnace of 110mm and when i put it down it was spot on , left to right i am very happy woth my tolerances everything is with in 1mm i assembled the control arms in the jigs and the geometery left to right is so close evan i could not complain ,

i built a tunnel of square tube , and some small additions

this week i looked at a birkin copy been built for racing all i can say is my car has to many pipes lol he has a roll cage i dont and i still have more pipes in my car , altho his car is looking beautiful . with his 2l opel dry sump , sidies , aluminium pedals , etc , ill try post a pic of his car this week , good mate of mine we race together for many years ,

what surpised me when i looked at his car was our geometeries are almost identical , mine been designed by myself at home , and his was build outsorced . at a huge cost
so it makes one smile you must be on the right track , also we both oval racers , and like it twitchy


im very excited for the next phase of the build

just goto decide what to attack next ,

i was gona use a cortina steering rack but its to wide so will have to aquire an escort rack ,

so gues it will be rack and colum and pedals this week

enjoy guys .
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Re: replicars build

Postby wacky wayne on Sun Jan 12, 2014 1:04 pm

( first of all happy new year hope its a pledid one for all ) just to let the guys who read know where i am at , i done quite a bit of work but mostly slow progress as we know how it goes , built a tank , and the safty box next to gearbox , still need to make it a bit stronger but lighter to , but a few pics , thanks enjoy
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Re: replicars build

Postby BuzzFuzz on Wed Jan 15, 2014 10:47 am

Do you have a part number and price for that Steering rack? Mine seems to be from a Mini-Taxi... so it looks the same, but its too wide, so the suspension geometry is pretty bad in terms of Bump steer.

Also it looks like you have a solid rear diff (from an Escort)... Do you have the rear arches? If so is the spacing right?
I built a Ron Champion Chassis with Solid diff and the wheels fit nice and snug. But now even with the rear arches I bough (narrow ones) I need to fit 80mm spacers. (dreading the cost - still need to find a place that can make them for me).

I like where you are putting the battery :) keeping the COG nice and low
Jethro

1) Scratch build - 20V blacktop & T50 box (done... but always tweaking)
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Re: replicars build

Postby wacky wayne on Wed Jan 15, 2014 5:48 pm

hi buzzfuzz , the rack is escort rack i got at local parts guys , they had it long time , paid 495 with rubbers lol , and got 2 boots spare to ,

my rear diff is nissan 1400 , yip a bit narrow im putting 30mm spacers in , its the max im feeling good on as roads are bad and bearings shaft take a bigger wack the further you go out im gona narrow my arches at the back rather ,
i will also have a different set of rims for track days which are 2 inches wider so i goto watch . (in the mean time im looking for a alfa diff or such .
this one the guys machine the surfaceof the shafts in all directions and we cannot get the discs shafts wheels aligned correctly , so new shafts at minimum ,(when you buy on photographs lol . my bump steer is minimal at normal ride hide , on the stand tho i have not set the droop stop yet so they hang down a bit ,

what is youre rear track ? do you have a wider chasis than mine ( across driver seat side to side im 1000mm). its a pretty narrow chasis , but thats what i like ,
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Re: replicars build

Postby BuzzFuzz on Thu Jan 16, 2014 12:00 pm

My chassis width is 1060mm wide.

Cool stuff, I'll keep watching your build diary :) to see the progress.
Jethro

1) Scratch build - 20V blacktop & T50 box (done... but always tweaking)
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Re: replicars build

Postby wacky wayne on Mon Jan 27, 2014 7:02 pm

hey guys just thought id share my happiness i went to scrap metal today ( i do so often to scrounge i love junk ) and guess what i found a complete set of 45mm 20v throttles , no injectors or regulator and tps , but wow what a find the guy said if i came on friday he would given me the cyliner head they where on but the chopped it up ouch , but so chuffed 50 bucks , will post a pic soon ,
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Re: replicars build

Postby wacky wayne on Sat Apr 26, 2014 6:41 pm

after a long off and an eye op im finally back to building my car again , wat i am looking for is does somehave dimensions for a birkin sized scuttle ox , i have a locost scuttle which is taller and wider . instead of cutting it maybe someone wants one ?
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Re: replicars build

Postby wacky wayne on Tue Jun 17, 2014 7:56 pm

hi guys , just an update i have pretty much promised myself to run the border 100 this year , that gives me 6 months and a bit less , well its the only way one really gets stuck in , so mission b100 , just finished welding diff brackets completey etc and decided to check wheel bearings which then led me into the diff , so to it apart quickly , luckily i did all bearings are pitted , but crown and pinion in great nick ,

so a expensive trip to bearing man should see my diff completed tomorow night , and painted the next ,

the wheel adaptors , are half way , and caliper bracket and cnc cutting , my only nightmare on the diff is finding a disc which fits over the 1400 flange , and im probly looking at honda balled 150i , but waiting for one to arrive , to check ,

will see me posting regularly ,

thanks
:)
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Re: replicars build

Postby wacky wayne on Tue Oct 28, 2014 7:29 pm

just an update been really goin slow , rebuilt the diff , made the wheel adapter fitted the discs and calipers , this is basically a mock up , but to complete its just fitting the proper wheel studs , and tightening up , put dial gauge on discs and wheels , and my worst runout is 0.003 mm im pretty chuffed considering the work was oversize for my bv20 lathe , and had to make a face plate to hold my work , then had to shim it when turned around to cut the adapters ,

during the past few months i have found some ford sigma engines , 1600,1500,1400 and vvt 1600 , and have decided to replace the toyota 4age motor with one of these on the t50 box ,
so in the process of doing the bell housing ,
some might say y as the toyota is a well known little engine and is tuff as hell and i do not disagree , revs well and make decent power ,

my reason are sigmas are availble to me as i know people , (thats me) ,,,

also for those who dont know the sigma engine , yamaha assisted in its design for a lightweigth efiecnt power unit (sound familer yes 4age was to ) , also performance parts a equivalent to toyota engine , im opting to use the 1.6 ikon non vvt motor , i can lift this engine into place alone , in fact my toyota is only head block sump and its much heaveir than my sigma ,

also having found almost 6 of them and still more to come , y the hell not , i have seen figures between 125 and 150 hp with little mods and 175 to 200 with spending money ,

and of course when my time comes that will mean i will lay my hand on a sigma 1.6 vvt turbo ( fiesta st ) will bolt in ,,, 134 kw and i know thats not far off :D :D :D :D
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Re: replicars build

Postby wacky wayne on Tue Oct 28, 2014 7:33 pm

just a few pics of what im doing

enjoy
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sigma engine
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Re: replicars build

Postby wacky wayne on Sat Jan 31, 2015 5:56 pm

had a few days off got to get some work done.
managde to get the belhousing modded just to weld it all up now .
got her on wheels to check final geometerty. all exactly where it shud be .
really chuffed all in all but still way to slow for my liking ,
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wheels on.jpg
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