[Brake Upgrade For Rwd Corollas (ae71 Or Similar).]

Oh just another fast question was re-reading your article and I couldnt find the rim size this setup fit under.

So will this setup work in a standard size corolla rim?

 

Cameron

[Brake Upgrade For Rwd Corollas (ae71 Or Similar).]

Hi,

Nice work on the How to.

One question you used T-18 struts for easy upgrade for ae86 inserts etc. I have a KE30 I know the difference on my model to a KE70 or Ae71 is there disc are wider by a few mm other wise there the same. So would this upgrade work on a KE30? Eg use same strut on the 30 and do what u did? As I don't know if a T-18 strut will fit a 30 and prefer to keep original as it works and just then go installing the new rotors and calipers.

 

Cameron

[Limited Slip Without Changing Housing]

With the last post I would say the same the cost is in labour.

 

With this project have a KE70 diff coming soon hopefully so were slowly hacking away at this.

 

Does anyone know the spring tension on the springs in a KEXX clutch?

Also does anyone have one willing to donate to the cause?

 

Cameron

[Whats The Fastest Car You Have Owned?]

Yes you are right kero isnt quite AvTur as AvTur has lube added anti freese so when planes are up high it doesnt well freese. I'm not flying so I don't add that but I do add lube to my kero. But you are right not quite the same. Google it for more info.

 

Cameron

[Whats The Fastest Car You Have Owned?]

Starting can be easy and can be hard.lol

Pretty much i turn on the master switch for everything then I turn on the oil pump. Once I have oil pressure the fuel pump comes on automaticly. Once I have all the systems primed I turn on ignition and gas warm for 12 seconds to about 400 degrees C then turn leaf blower on and as I slowly open the fuel metering valve I turn the leaf blower up slowly. And in about another 5 seconds I should go from 0 to 30,000RPM.

 

But a few times the start has "hung" where fuel is burning but it just doesnt spool but when it does RUN (Even comercial jets get this now and then) they generate a bit to much power..lol. But last time this happened so much fuel was burning in the jet it spooled up so fast rear wheels started spinning and it lifted off the ground from the instant increase in rotating force in the engine. So it can be hard. Starting is always the worst part if it goes good well engine should run well.

 

But last time too_quick saw it I was doing arebuild from a "out of temperater run"..lol I melted the stainless steel fuel manifold (well more the weld and mounts etc) so I was redesigning and also going to find a better finish for the drive turbine houseing as well paint burns and it mild steel for testing so rust to. But it is slowly coming along. Should be track ready again by the end of December :hmm:

 

But I run it on straight kero (jet fuel) but can burn any fuel if slightly re-tuned for it eg deep fryer oil.

 

I have a video here of it on a hung start jumping off the ground before I tuned it to make more power Ill try to compress it and get it some where for you to see ti run.

 

Cameron

 

P.S. I always play safe so risk of death is LOW...

[Whats The Fastest Car You Have Owned?]

I have just had an interest so just did it..lol

Need to been really keen about it but as this project is into about 5 years now and a cost well I add it all up and well over 7 grand and it still getting parts and all work I pretty much did on it my self so labour was free you could say. But these things be prepared for some hairy moments to if you make one.

 

And every part I make needs testing to the max eg combustion chamber to hot well it melt to cold wont run good etc. And testing a combustion chamber is fun..lol Turn on shop air light fuel and play with it..lolmmmm 4 meter long flames :hmm: And then you get boring testing kinda like the strength of my stainless steel air intake.

 

But these things scare you everytime they run..lol 140dB at idle 80HP power output at the wheels and it olny weights 100Kg with full tanks and if has a loss in oil can destroy itself in a matter of a micro second as at full RPM this thing is spinning around 1333 times a second. So it can kill in a flash if your not careful. But it is addictive..lol

 

But The reason for having the exhaust come out the side as I don't run thrust. Used to but it was slow 110Km/h max :) So I instead made a second custom turbine that I push the exhaust gas through and it spins and takes the left over energy and then that turbine is attached to the rear wheels. So then I just dump all the gas out the side and there is a duct missing in the photos that stops thehot exhaust melting the wheel..lol So I have a similar set up to a turbo prob plane motor. And now can go at INSANE speeds..lol

 

Cameron

 

Anyway back to topic..lol

[Have You Seen One Of These Before??]

KE55 for sure.

Has pre 1980 front grill plastic interior window winders and other small stuff.

But I like the spot of the TV in the car, nice.

 

Cameron

[Head Difference??]

corolla test pilot would you mind putting aphoto up of your head or PM a photo to me. As with the attachments it could be a bigport head so it will have a welsch plug or different manifold stuff as some big ports had a water heated manifold.

 

But I have added your head numbers to my list thanks.

 

Cameron

[Whats The Fastest Car You Have Owned?]

This kart looks awesome and very dangerous, some very long hours have gone into that rapid road rocket.

 

Excuse me it not a rocket but a jet. You know how passionate I am about this hobby...lol

 

All jokes aside easy to kill my self as it is a DIY jet engine (doesn't mean I lacked on safety, or anything). The compressor spins at 80,000 RPM with the tips just faster than a bullet fired from a hand gun and moves 78L of air a second and runs at a nice cool 800 degrees C ( does go over 1000 degrees C) So death wish yes. Bloody fun one but..lol

 

can't wait till I finish the afterburner :lol:

 

 

Cameron

[Limited Slip Without Changing Housing]

mm as springs over time heat will kill them so in a diff 2yr a good run. but I agree $150 for springs way to much. Wanna be gold plated for that..lol

 

Cameron

[Limited Slip Without Changing Housing]

Ok havent got a KE70 diff to play with yet but the chev one I have the axle just don't quite go all the way to the spider gears attached to them and they have a flat surface so installation would require no removal of parts.

 

But on the instruction page I have onhow to install these it says to grind,sand, on machine the face of the spider gears flat so it grips better. As these are a friction device so better the surface it rubs on the better it grips that is why these things have to be worn in a bit.

 

Wiht the springs heat will affect them over time. But $150 for springs tell em where to go. Go to a dedicated spring maker with your spring and price could be low as $3.

 

So as I get parts and make a trial run one ill see how it goes. But I can see a problem in a KE70 4age diff as this device locks it the axle isnt strong enough and it will snap them. But behind a K motor when it locks I could see it taking it easier on the axles so again have to wait for testing.

 

Cameron

[Whats The Fastest Car You Have Owned?]

Fastest road car I have owned. Would be the KE30 the KE70 had ablowndiff so it was slow..lol

 

But fastest car/kart I have owned would be my homemade jet powered gokart. Only tested to 1/3 throttle so far and it was doing 180-km/h could hit well 300 if I let it. But currently tunning it up so I can break my previous 80HP at the rear wheels record on it. But it sufferes from heat issues right now as it is a bit to hot to now sit in the drivers seat from tuning.

 

And last sprint test was dodgey and want tuned and it did 0-100KM/h in 4 seconds flat :lol:

 

Cameron

P.S. Oh it can spint he wheels at idle to..lol

[Ke-30 Heater Leak]

I have a KE30 and have never had this problem before. Could be dead hose as hot water and rubber over time not a good mix. Ill inspect mine tomorrow just to be safe.

 

Cameron

[Engine Swap And Paper Work??]

Yeah should be able to get away with box as corolla_kid didnt tell them about the hole he cut adn they passed it pon his blue plate he got for box.

 

But Ill try the tack of a replacement motor..lol As it isnt the modifications section i will have to go through so what is the chance of them knowing..lol

 

But on the KE30 it has the middle shifter position. As 10,20 had a far fowards one 30 and 50 had it in the middle, and 70 had it futher back again. So my hole wont be to big.

 

Cameron

[Limited Slip Without Changing Housing]

You are right. These will be not as good as an real LSD but better than an open one.

I came across in my research papers on performance difference when installed for a drag street car. Was better all around on launch etc. These wont do anything if you drive normaly. But if trying to spin your wheels it will. So it is a great option for a hoon who wants people to think he has LSD.

 

For a rally car, my self I have seen these used in kahna cars succesfuly don't know about full rally but time will tell.

 

Cameron

[Limited Slip Without Changing Housing]

Hi,

Ok didn't have a spare corolla diff this arvo but I had a spare 1929 chev diff center so I have drawn a locker to suit it to give everyone a rough idea of it.

 

This unit is 70mm long and 50mm wide and 11mm thick. The spring holes are 15mm diameter and the springs will locate into them tightly so will be drilled to exact same diameter of the spring. With two of these unit compressed into the diff center there will be a 2mm gap between both plates around the spider shaft.

Now or spring length. The holes are at a depth of 8mm So 8+8+2=18mm. This is how long the springs will be when compressed. As this part is pushing out on the spider gears so it wont go in so the 2mm gap is ample. But remember this part above you need 2 of and springs to make the locker and this one is for a chev 1929 diff so don't go out and get one made for a rolla WONT FIT. As that is a demo.

 

When ordering springs they want to know the tension at what length. So If I order springs 20mm long with 2mm compression I will need 70lbs. If I get 20mm springs I want the point where this unit will sit at close to there so assembly is easier and you not having to compress it say 10mm and springs are cheaper and there will be less chance of coil bind.

 

So if the corolla housing will allow for it the springs in a KE20 clutch will be the right length for the job :lol: So if I can get 2 piece of scrap metal and a screwed rolla clutch I think I could make one of these for free to say $20 for the prototype. As there 23mm uncompressed so if I can get one in a vice and they compress say 5mm before bind I can use them as with a 2mm compression in my design they will be miles away from bind.

 

If this is possible to avoid making them with out buying springs I could make the blocks and buyer gets own springs or if they want really hard springs for racing i can put them in the direction of the maker for some one offs.

 

Also for assembly in my design I have placed holes in the blocks to slide in bolts and over the bolts place some flat bar. So you can load springs clamp in vice slip metal over bolts to hold the unit shut slide whole unit into diff and then pop off metal and remove pins locker will release and presto easy install ;)

 

Also if you don't remove the pin or bolt from the hole if you assemble this way your diff will blow and jam if pin falls out so remember to remove it!!!

 

Cameron

P.S. Soory for all my posts but just keeping everyone updated on this project and today I was stuck at home all day so went nuts and this was all that kept me busy..lol So design done now i need parts and a rolla diff :)

[Limited Slip Without Changing Housing]

Quote for springs:

I went direct to a manufacture of springs and if I purchase an initial amount of 4 for a prototype the springs will cost $30 each then GST so a minimum of $120 for the springs. As for a small number they are hand made. If we then decide to make say 20 of these units we will need 80 springs so I got a price on a box of 100 as well prob need spare parts as well and the price drops to $3.65 per spring +GST. So if the trial goes well I have demand for them ill go out and buy more springs but on my limited funds that could take a while.

 

Next a water main blew out side our house today so I haven't been able to get a quote on some steel billet to make the plates. But I am pretty sure I could find some thick scrap metal for the trial.

 

Also I measured the springs in my clutch from the KE20 they are 23mm long roughly and about 14mm diameter. And are green in color if that helps. And I came across a LSD system like this in a datto and his springs measured 15.3mm dia and 25mm long so a spring out of a bigger clutch might be the go?

 

Cameron

[Limited Slip Without Changing Housing]

Spring prices coming as we speak. Have a place in Brisbane making me a quote on springs now. But I have an old KE20 clutch in the shed that might have suitable springs. Does anyone know the tension a standard clutch runs?

 

If postage is that cheap ill let you know soon about this project.

 

With the device it pushed agaings your spider gears using the springs. If you slowly turning and driving eg town or car parks it will let the gears turn and slip. If you drop the power to the ground since it is putting up wards of 280lbs of pressure on them they just both start spinning. Then the pressure stays there and once there going they keep going. I have seen one of these running 600lbs of force in one before so pending on what your doing harder or softer springs will be best. But this device simply makes the wheels continu spinning if doing a burn out but at slow speeds the tyres have more grip and force and slip.

Hope you understand a bit better now..lol

 

 

Cameron

[Limited Slip Without Changing Housing]

Tas Rx,

Ill get prices on metal, springs and getting one machined. Ill let you know as posting a Diff centre from Tas might be costly. Ill see if I can get one localy and ill find out more for you.

 

Cameron

[Limited Slip Without Changing Housing]

Hi,

Ok have information on spring settings for a DIY unit.

A commercial company makes these things ion the US and offers 3 different spring tensions. They are as follows:

Gold springs(Street/Race) - 60lb/in

Green springs(Full Race/Hard Core) – 120lb/in

Red springs (street) - 20lb/in

 

So I think we should build them with these springs as they are proven. But there kit even base kit comes with Gold springs none come with red ones standard have to ask so maybe we should just only look at the green and gold ones.

 

Also the flatter the surface on the spider gears the better it will work and grip in. Some gears have a lip on them this must go. So to install can grind or lathe off. I would prefer lathe but by looking at pictures well doing it on the side of a bench grinders wheel will make it flat enough and emery paper it smooth. As on the installations of the kit you can buy it says tolerance between LDS unit and spider gears are 0.003 – 0.005 inches with the clip on holding it together when installing it so if we make a kit to suit a 30,50,55,70 BW diff if your diff is old worn can see it being a problem.

 

Also the kit recommends 300-500 miles travel before it beds in and you will get full grip so don't expect results straight away.

 

Also with the spider gear shaft I don't know if it has to be a tight fit or a lose fit around it so if some one owns a unit and wouldn't mind removing it from the diff to get some measurements it would be much appreciated.

 

Also this device puts load on the side of the spider gears it is said to so far been tested up to 120,000 miles with no damage. But I could see low oil or old oil in the diff and this device to kill it fast.

 

More development work to be done here yet before I make a proto type but I will hopefully get a price on springs and billet metal to suit today. Probably just mild steel for initial usage.

 

Also If I can get a KE70 diff centre for my proto type unit I can get it tested in a KE70 running a 4agze with 12PSI boost so well find out how good it is. As I can see us still breaking diffs as we are adding a part to a small diff so not in turn making it stronger but stressing it more. But only time will tell.

 

Cameron

[Limited Slip Without Changing Housing]

By the way I suck at english so ill try my best just for you Raven.

 

Now for my drawing. This is my design But am thinking off adding an oil channel down the arch way to lubricate this block between the shaft the spider gear sits on.

 

Pics of it below. I made it to look good but all I have to do is add dia. to it and presto turn it into a file a CNC mil can read and I can turn these out. They are a mirror of each other so the only other part we need to worry about is the springs ;)

 

Enjoy

Cameron

 

P.S. One is what it will look like if made from brick.

 

[Limited Slip Without Changing Housing]

Ok seriously doing this...lol gosh i built a jet powered go kart how hard can this be..lol

Ok subaru from a fast look WRC car has about 35 to 40lbs locking focre in its car. not exact value as well they race it.

 

We also need to make these high tollerence as less tollerence will make em lose lock at speed and cause a crash.

 

Next tight fit so springs need to be about 26mm long and about 115mm wide (from looking at suitable springs) Valve ones to long wont do job.

 

Also to much pressure u might as well make a CIG locker as it do that to little why bother so hardest part in this is the springs

 

Next will need to face sun gears in diff to make a better surface for spring locker to lock to.

 

Also what should wear first diff or locker as it is a friction device. Locker. So make it out of some 4010 metal should be softer than iron n a diff but good for heat and strong and cheap.

 

To get in diff assemble it clap 2 plate together in vice or press and get some flat bar tack weld to each piece. Then put in diff get die grinder give weld a hit and it will come apart and be in diff. Easy.

 

More research to be done on this also a CAD and 3D drawing will come. But I am a student so is a side project but if I can get a loan a diff from a BW rolla and some one to thrash it for me when i build it for testing well seehow we go making one. As if I can make my self and get scrap bilet metal for free and I have lots of springs at home id say i can do one for under $50 for my self

 

Also if possible drop into that guys shop see what he has in the way of drawings or exploded views. If I get a good look at one well ill do own messurements and design my self.

 

 

Cameron

[Limited Slip Without Changing Housing]

Do you have a more detailed phot with messurements possible of the unit?

 

As if it is simply a plate with 4 holes either corner to locate springs then another matching plate and it goes in centre of diff or holds on to the spider gear well it would would be easy to make. If i got more details i know people who machine and I could use there mill and prob make one for some beer so if u get me drawings or messurements or some thing id give it a go.

 

But I will get onto the guy and see if he will give me indepth info for me ;) But ah STD call at day time WOW

 

Cameron

[Limited Slip Without Changing Housing]

If it is 30 or 55 will be the same. As in my 30 I have an original BW diff but over time trying to get a LSD vad jap diff for car.

 

But do you have this guys number who does this or a name for the part possible so I can see if a diff shop here in QLD can do them?

 

Also might seem a stupid question but does this lock the diff hard as in if you drop clutch will both wheels smoke up?

 

Cameron

[Pentium 3 Computer]

Hi,

Just selling an old computer I have had for a while now and is now just taking up valuable shed space...lol

It is a Pentium 3 was a 2 but I up graded old CPU will come with computer. has 160mb of ram in the machine with a network card for broadband net and an 8 gig hard drive and 15 inch monitor and it runs windows XP and office fine.

 

Location: Ipswich

Price: $60

Need gone good for a net computer if you don't want virus getting on your good machine or a typing one.

 

Cameron