View Full Version : KE70-4AG Webbers Pics attached

31st March 2007, 11:05 AM
Hi all, Thought you might be interested
We recently completed this 4ag conversion Into my KE70 at my shop.
I wasnt super keen to hurry into the project as i wanted to concentrate on my race car but after much convincing By Brendan ( who also done most of the work http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif ) the job was complete.
The motor is a stock bigport that i got from a local importer, he got the engine about 10-15 years ago it was out of a crashed car and has been sitting in a undiscovered corned of his shed ever since. The engine was filthy and really looked like crap- but the price was good! When i got the motor to my shop i removed the sump and top covers and saw what i can only describe as an absolutelly immaculate engine! This thing must have been almost new when it was crashed. We replace the damaged sump, water pump and thew in a new headgasket, degreased the outside and hit it with a bit of paint.
I had the 40mm webbers and extractors off my race engine lying around so on that went, the exhaust system was a side pipe on the race car so i put an extra section on it to exit out the rear.... Brendan wanted to keep the side pipe but its not my scene i wanted a real sleeper. http://www.ae86drivingclub.com.au/forums/emoticons/tup.gif
The car i have only had for about 2 months its pretty clean with 137000 orig, kms was 4k auto http://www.ae86drivingclub.com.au/forums/emoticons/fap.gif so as you can imagine the 4ag has helped it along a little. We swapped the whole crossmember struts and steering rack out of my donor AE86. fitted straight in using KE70 strut tops.
The wheel were on it i've just put some NRCA's (2 deg neg. camber) on it for a little better stance.
The T50 was out of my race car and is a little worse for wear but i will freshen it up in the next couple of weeks. the diff is now a "s" series.
I am really impressed with the performance and driveability of the car. the webbers obvioussly help with the performance- heaps but how smooth they are when i'm just driving normally is testiment that webbers tuned well and balanced correctly will be almost as good as EFI. Most of you probably don't care much about fuel economy but it's great, I can't tell you exactly what it is because i need a AE71 speedo cable!!!

A big thanks must go to Brendan for all his effort that he put into the car and for convincing me that it had to be done.... yes you were right!
Also Gilly on this forum for helping us out with some altenator wiring issues. he is a book full of 4AG knowledge http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

More than happy to help anyone else out going to do this conversion or any questions you may have.
All comments welcome, criticism will be taken as constructive http://www.ae86drivingclub.com.au/forums/emoticons/tongue.gif

obey wan boenny
31st March 2007, 01:17 PM
sweet as http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

31st March 2007, 01:22 PM
that is cool as

i love the old skool 4 spoke dragways. ihad a set EXACTLY like that i was so devastated when i realised they were 4x110 http://www.ae86drivingclub.com.au/forums/emoticons/laugh.gif

check my tech article on the alternator wiring as it may have been a little different to what i told Brendan. the tech article way is definately the 100% spot on, bomb shiz way of wiring it http://www.ae86drivingclub.com.au/forums/emoticons/tongue.gif

i'm using an AE86 speedo cable in mine and it seems to work correctly most of the timeu have to pull all the plastic retaining shit off at the dash end and then tape around the speedo socket on the cluster so the 86 cable will fit snug (you'll see what i mean)

if not i used a manual KE70 cable in my old 20v KE70 conversion it used (obviously) a T50 as well and i never had a drama.

i'll move this to the *E7* section, we need more fat ones in there!!

31st March 2007, 02:26 PM
That's pretty freakin cool. The induction noise must be sic!

31st March 2007, 03:03 PM
Yeah thanks again for your help Gilly. we got the altenator working i knew what i needed to do just didn't know what wires to do it with http://www.ae86drivingclub.com.au/forums/emoticons/crazy.gif

I will have a go at my speedo on Monday be great to have it working again instead of just guessing at the speed cameras.

31st March 2007, 03:12 PM
will add more pics later. These were taken just after it was running. We have tidied up the witing loom and engine bay a bit more.
Induction noise is unreal although it has socks on it now - not that they tone it down much.

31st March 2007, 03:53 PM
fuk yeah jase finally got the build thread up....good to see...this lil thing is so thraoty with the twin sidies the induction noise is porn....this conversion took a little longer than planned as we ran into a few hickups but finally got there and all the trouble we went to was worth it as this thing flies.. so much better than my ae86 when it had the 16v in it

my 2c

31st March 2007, 04:19 PM
thats nice and neat mate, i love a clean as conversion.

the heatshield looks so neat looks 1000 times better than some i've seen

is that dizzy locked timing wise? or have you sussed out some sort of way around it now there is no computer involved?

congrats guy's you have skills, a full credit to your workmanship, this is one of my faves.

31st March 2007, 04:42 PM
cheers gilly....as for the timing we have it set at i think its 32 degrees advanced and that little black module next to the coil in one of the above pics retards the timing to normal when car is running havent had any troubles with it works well, the little module isnt expensive either u can just buy it from repco..it is a bosch item, not sure on part number nut im sure jase can help you out with that if ever you want to use this setup as its much more simple to wire than an ecu....

31st March 2007, 05:57 PM
Awesome car! So good to see a neat, shiney ke70!

I would very much like to know what the part number is for the module as well, and also what brand inlet manifold you used and did eliminate the tvis?

Thanks heaps, fantastic car!

31st March 2007, 06:07 PM
yes there is no tvis can prob find out that part number on monday or tuesday for you....

1st April 2007, 10:26 AM
The timing is actually set at 32 degeres. It starts, idles and runs at 32.
I have used the 2 trigger wires out of the std. 4ag dizzy and used them to trigger a standard 4 pin Falcon (xf i think) module. This setup works fine although i does struggle a little on startup when cold but not too bad at all.
I used to have a little control module made by a company in NZ for about $300 (I would still recomend them) it would advance the timing gradually by 17` when engine revs got to 3250 rpm, your ignition curve would go from 15` base timing then by the time it got to 3250rpm it would be at 32`. This setup worked great for the 12 months that i was building my race car it would start and run the car everyday, BUT the first time i took it to the race track i started it up, backed it off the trailer and it stalled, I lifted the bonnett and could smell that horrible burnt electrical smell. I found that all the smoke had escaped from inside the unit. http://www.ae86drivingclub.com.au/forums/emoticons/angry.gif
So i went to my local Repco bought a 4 pin module, wired it up and had the car running 1 hour later. http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif
This module setup ran my car for 18 months and Never gave any problems so i thought i would go with it again. I will probably buy another advance module again but no great hurry.
The reason i use 32degres? Because even with my limited testing and dyno testing on 4ag's in my race car and the Cosworth BDA Atlantic engine ( very similar design to the 4ag) i run in fromula atlantic cars, 32` always seemed to produce the best power figure. I don't know why It just did.

The heat shield is also from Repco ( I used to work at Repco and now own a Repco Repair Centre so i know what they can get) It's a ACL product- All credit must go to Brendan for making it up I handed him the tools and he made it look great http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

There is no TVIS and the inlet manifold is a Redline brand i would also reccomend the throttle linkage setup made by Lynx, I've seen some ugly setups over the years but this was very simple and very tidy, Both available from Repco.

If you guys are keen i can supply part no's for most of the parts i've used and also put up a wiring diagram for the ignition, not sure where on the forum to post it though??

Thanks for your comments

1st April 2007, 10:29 AM
tech articles http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

2nd April 2007, 12:29 AM
yeah tech articles

please do it that would be uber helpful

carb questions get asked at least once a month http://www.ae86drivingclub.com.au/forums/emoticons/laugh.gif

4th April 2007, 10:08 AM
That was an awesome read. It got me so pumped to just go out and make something nice like this. Then I remembered I'm one pay away from being broke http://www.ae86drivingclub.com.au/forums/emoticons/sad.gif Anyway its a dream for the future.
So yeah just wanted to say I love the car an love the write up. Keep us updated.

5th April 2007, 12:11 AM
More pics.
I also added a tech article on how to wire up the dizzy.

http://www.ae86drivingclub.com.au/forum/in...sult_type=posts (http://www.ae86drivingclub.com.au/forum/index.php?act=Search&nav=au&CODE=show&searchid=51e0df3a803e761bb536b245b7dfb21b&search_in=posts&result_type=posts)


5th April 2007, 12:13 AM
hehe early morning snaps b4 work.... foggy windows ftw

5th April 2007, 12:17 AM
LOL yep, and i also know what "ftw" stands for now!

5th April 2007, 09:50 AM
nice car mate, but lol to ^^^^ coz i still dont know what it means

5th April 2007, 10:26 AM
FTW= for the win http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

5th April 2007, 11:41 AM
Nice sleeper man good job

5th April 2007, 12:37 PM
way to get ur sleeper otu man thats tidy as i love it good work!

5th April 2007, 02:00 PM
that is an extremely nice job there mate, i tip my hat (if i was wearing a hat) to you

that little black box you mention, that is very interesting, correct me if im wrong but that would be the perfect solution to running quads on a 16V? eliminate the need to find a source of vacume for the dizzy? or you could just control it with an aftermarket ecu i spose....

great read, keep the pics/updates coming! http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

5th April 2007, 09:18 PM
damn when i saw this last u had just got the new crossmember and pedal box in....and now look at it http://www.ae86drivingclub.com.au/forums/emoticons/ohmy.gif lookin awsome

5th April 2007, 09:39 PM
^^ Cheers mate yeah goin well too. just thinking what else i could do to it..... hhhhhmmmm the possibilitys http://www.ae86drivingclub.com.au/forums/emoticons/dry.gif

5th April 2007, 09:52 PM
locker jase http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif http://www.ae86drivingclub.com.au/forums/emoticons/laugh.gif

5th April 2007, 09:58 PM
You are a bad influence Brendan..There will be no Locker only a LSD!!

6th April 2007, 10:06 AM
haha lock that bitch...and chopped springs FTW http://www.ae86drivingclub.com.au/forums/emoticons/tongue.gif

6th April 2007, 10:10 AM
na man the sus in that thing is mad shit handles so good

6th April 2007, 11:06 AM
yeh in those pics it looks pretty good, ill have to come for a drive soon

6th April 2007, 12:16 PM
Hell Yeah !!!

Thats the shizzle http://www.ae86drivingclub.com.au/forums/emoticons/biggrin.gif http://www.ae86drivingclub.com.au/forums/emoticons/biggrin.gif !

15th April 2007, 06:14 PM
hey its deano here! When i drove it she had the carbys runnin too rich so i haven't experienced the full potential but it handled really good hey better than i expected, especially compared to the super fall out the window style body roll of my ke30!


15th April 2007, 07:19 PM
Yeah its sorted now!
jump in the passenger side some time and I'll show you it's potential http://www.ae86drivingclub.com.au/forums/emoticons/tongue.gif
Nothin too serious just a bit of fun.... http://www.ae86drivingclub.com.au/forums/emoticons/cool.gif

15th April 2007, 11:50 PM
this is an awesome little budget project so much fun for the cost and effort put into doing it...has it all....goes very well, handles very well for the mild suspension work it has and all in all just a very tidy clean cut car thats not too over the top... luv it

p.s hey deano

17th April 2007, 11:01 PM
http://www.ae86drivingclub.com.au/forum/in...pid=336703& (http://www.ae86drivingclub.com.au/forum/index.php?showtopic=14191&st=0&gopid=336703&)

Module part no. added

20th April 2007, 03:19 AM
wanna swap your carb setup for my efi setup, would work out some kind of cash adjustment.

20th April 2007, 04:33 AM
dooowit jase lol u know what u got that i wanna see

ps i have spent a few hours at the club......i am here coz i got kicked out

fooken kents

have a good 1 man

tell dane if he comes to get his springs to call me

cheers man

22nd April 2007, 03:25 PM
awsome, i'd love to own something like that for a daily. top stuff http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

22nd April 2007, 05:04 PM
DriftKE70 no thanks. The carbs are awesome and working spot on. If and when I go EFI on it I will be adapting the 20v quads. can't beat the sound of quads be it webbers or efi!!
but thanks for the offer.

29th April 2007, 07:22 PM
Have you just knock a little welsh plug into the injector holes??

29th April 2007, 09:28 PM
Good question, how did you seal up the injector holes??

And what specs are your carbs?

3rd May 2007, 11:25 PM
Yep, Just went to Repco and bought a very small welsch plug that i tapped straight in.
If and when i want to go Injection i can simply knock this plug out and re-install the injectors.

3rd May 2007, 11:28 PM
course out- when you say specs on carbs do you mean emusion tubes and main jet sizes?
Cause if you do im gonna have to go read them. They were set about 2 1/2 years ago when they first landed on my race car.
But thats easy, any excuse to play with the car is a good one! http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

4th May 2007, 12:48 AM
Yeah mate if you don't mind of course!

I have Dellortos sitting in the shed off a 1.8 or 2 litre Alfa, 40mm dhla, are parts the same for Weber? (probably not, thought I'd check)

Also did you seal the welch olugs with anythign or just tap them in? Cheers mate!

4th May 2007, 09:44 AM
I dont know my self but at a guess I'd say abit of stag sealant wont hurt especially with the revs a carb 4ag would pull and all the vacuum behind them.

4th May 2007, 02:20 PM
For the record - RBC058 is the part no. of the welsch plugs.
Craig 86 i used a product called 3J is it a very universal sealing product and fairll similar to STAG.
There is no way that these plugs would ever pull through but 3J or Stag will help seal them if you happened to knock them in a little crooked.

Stay tuned for weber jet sizes......

2nd June 2007, 09:15 PM
http://www.ae86drivingclub.com.au/forums/emoticons/tup.gif alsame car dude, very clean swap me u know you want lol

20th June 2007, 07:55 PM
hey man i just got twin carbs myslef came with a manifold 2 suit a bigport when i need help is it kool to ask ?

my MSN is Ethan_525@hotmail.com

cheers http://www.ae86drivingclub.com.au/forums/emoticons/tup.gif

29th June 2007, 09:37 PM
hey man i just got twin carbs myslef came with a manifold 2 suit a bigport when i need help is it kool to ask ?

my MSN is Ethan_525@hotmail.com

cheers (y)[/b]
Yep for sure. will help where i can

11th July 2008, 12:58 PM
hey awesome looking build up, just curious of how much power this set up would be putting out, am interested in doing something similar.

11th July 2008, 06:39 PM
this car is now dead

RIP lil yellow 70